Patent Grant
11645257
The ability to obtain and analyze pertinent information from large databases is a critical element in understanding what is happening in a business. Businesses are collecting more and more data as their operations increase in size and complexity. Identifying and locating relevant data in these voluminous databases continues to be a significant challenge that is made substantially more complex and difficult as the sizes and complexities of the databases have grown. This process, as well as the process of analyzing and visualizing the relevant data, are computationally and time intensive.
For the last 50 years, query-based architectures have represented the primary, if not the only, methodology for data analysis. These query-based architectures typically extract a subset of data from a much larger main database, which subset is processed and returned in the form of a smaller query result set. While the smaller result set does allow the user to focus on what is thought to be the relevant data, and the simplification of the computation and time issues associated with working with the large database, much of the knowledge that could otherwise be obtained from the database is lost, since the result set is completely divorced from the database, and particularly, any other data not contained in the results of the query. The act of extracting the subset of data from the main database breaks associations. The result is that much of the knowledge which could otherwise be obtained from the database can no longer be presented to the user, whether in database form or in visualizations such as graphs, tables and the like, that use the result set. The present disclosure addresses these and other shortcomings in current data management and analysis methods and systems.
Provided herein are methods and systems for data management and analysis. The methods and systems described, in one aspect, can facilitate the analysis of information to provide usable output for various users of a database.
In an aspect, provided are methods for analyzing information within a database that comprises one or more database structures which collectively contain a plurality of data records, with each record having at least two data element types, and with at least one of the data element types having a different data element value from the data element value for the corresponding data element type in at least one other record in the database; the method characterized by the steps of reading the plurality of records, instantiating an initial data structure for each unique data element type within the plurality of records, creating an entry in the initial data structure for each data element type for each unique data element value within that data element type, selecting one or more database structures within the database, instantiating a final data structure for the selected database structures in which the data element value for each data element type reflects the entry made in the initial data structures for that data element value.
In another aspect, provided are methods comprising receiving a query for information from the database, determining particular data element types and data element values that are the subject of the query, instantiating a query data structure containing the data element types and the data element values that are the subject of the query, identifying records within the database that contain one or more data element types and/or data element values that are included in the query data structure, and instantiating a results data structure comprising information relating to the identified records.
In a further aspect, provided are methods for analyzing information, comprising identifying, in a database, unique data element types, generating a plurality of initial data structures corresponding to the unique data element types, wherein the plurality of initial data structures comprise unique data elements associated with the corresponding unique data element type, generating a final data structure based on the plurality of initial data structures, wherein the final data structure comprises a non-redundant selection of records from the database, and providing search results relevant to a search query based on the final data structure.
In another aspect, provided are methods, comprising receiving a query for information from a database, identifying data element types relevant to the query and data element values relevant to the query, generating a query structure based on the identified data element types and data element values, identifying a data structure relevant to the query structure, wherein the data structure comprises non-redundant data element values from the database, identifying records in the data structure based on the query structure, and providing the records in response to the query for information.
It is an object of one or more embodiments to provide a means for retaining the ability to analyze data within the database that is not necessarily reflected in a query. It is an object of one or more embodiments to provide a means for considering data not necessarily included in the database, but which is pertinent to the analysis of the data that is contained within the database. It is an object of one or more embodiments to provide a means for prioritizing query criteria. It is an object of one or more embodiments to provide a means for simplifying and minimizing the processing requirement and time required for the analysis of data.
Additional advantages will be set forth in part in the description which follows or may be learned by practice. The advantages will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive or limiting, as presented herein.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments and together with the description, serve to explain the principles of the methods and systems:
Before the present methods and systems are disclosed and described in more detail, it is to be understood that the methods and systems are not limited to specific steps, processes, components, or structure described, or to the order or particular combination of such steps or components as described. It is also to be understood that the terminology used herein is for the purpose of describing exemplary embodiments only and is not intended to be restrictive or limiting.
As used herein the singular forms “a,” “an,” and “the” include both singular and plural referents unless the context clearly dictates otherwise. Values expressed as approximations, by use of antecedents such as “about” or “approximately,” shall include reasonable variations from the referenced values. If such approximate values are included with ranges, not only are the endpoints considered approximations, the magnitude of the range shall also be considered an approximation. Lists are to be considered exemplary and not restricted or limited to the elements comprising the list or to the order in which the elements have been listed unless the context clearly dictates otherwise.
Throughout the specification and claims of this disclosure, the following words have the meaning that is set forth: “Comprise” and variations of the word, such as “comprising” and “comprises,” mean including but not limited to, and are not intended to exclude, for example, other additives, components, integers or steps. “Exemplary” means “an example of”, but not essential, necessary, or restricted or limited to, nor does it convey an indication of a preferred or ideal embodiment. “Include” and variations of the word, such as “including” are not intended to mean something that is restricted or limited to what is indicated as being included, or to exclude what is not indicated. “May” means something that is permissive but not restrictive or limiting. “Optional” or “optionally” means something that may or may not be included without changing the result or what is being described. “Prefer” and variations of the word such as “preferred” or “preferably” mean something that is exemplary and more ideal, but not required. “Such as” means something that is exemplary.
Steps and components described herein as being used to perform the disclosed methods and construct the disclosed systems are exemplary unless the context clearly dictates otherwise. It is to be understood that when combinations, subsets, interactions, groups, etc. of these steps and components are disclosed, that while specific reference of each various individual and collective combinations and permutation of these may not be explicitly disclosed, each is specifically contemplated and described herein, for all methods and systems. This applies to all aspects of this application including, but not limited to, steps in disclosed methods and/or the components disclosed in the systems. Thus, if there are a variety of additional steps that can be performed or components that can be added, it is understood that each of these additional steps can be performed and components added with any specific embodiment or combination of embodiments of the disclosed systems and methods.
The present methods and systems may be understood more readily by reference to the following detailed description of preferred embodiments and the Examples included therein and to the Figures and their previous and following description.
As will be appreciated by one skilled in the art, the methods and systems may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the methods and systems may take the form of a computer program product on a computer-readable storage medium having computer-readable program instructions (e.g., computer software) embodied in the storage medium. More particularly, the present methods and systems may take the form of web-implemented computer software. Any suitable computer-readable storage medium may be utilized including hard disks, CD-ROMs, optical storage devices, or magnetic storage devices, whether internal, networked or cloud based.
Embodiments of the methods and systems are described below with reference to diagrams, flowcharts and other illustrations of methods, systems, apparatuses and computer program products. It will be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, respectively, can be implemented by computer program instructions. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create a means for implementing the functions specified in the flowchart block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including computer-readable instructions for implementing the function specified in the flowchart block or blocks. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions that execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.
Accordingly, blocks of the block diagrams and flowchart illustrations support combinations of means for performing the specified functions, combinations of steps for performing the specified functions and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, can be implemented by special purpose hardware-based computer systems that perform the specified functions or steps, or combinations of special purpose hardware and computer instructions
The present methods and systems can be operational with numerous other general purpose or special purpose computing system environments or configurations. Examples of well known computing systems, environments, and/or configurations that can be suitable for use with the systems and methods comprise, but are not limited to, personal computers, server computers, laptop devices, and multiprocessor systems. Additional examples comprise set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that comprise any of the above systems or devices, and the like.
The processing of the disclosed methods and systems can be performed by software components. The disclosed systems and methods can be described in the general context of computer-executable instructions, such as program modules, being executed by one or more computers or other devices. Generally, program modules comprise computer code, routines, programs, structures, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The disclosed methods can also be practiced in grid-based and distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules can be located in both local and remote computer storage media including memory storage devices.
Further, one skilled in the art will appreciate that the systems and methods disclosed herein can be implemented via a general-purpose computing device in the form of a computer 101 such as is illustrated in
The system bus 113 represents one or more of several possible types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures can comprise an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an Enhanced ISA (EISA) bus, a Video Electronics Standards Association (VESA) local bus, an Accelerated Graphics Port (AGP) bus, and a Peripheral Component Interconnects (PCI), a PCI-Express bus, a Personal Computer Memory Card Industry Association (PCMCIA), Universal Serial Bus (USB) and the like. The bus 113, and all buses specified in this description can also be implemented over a wired or wireless network connection and each of the subsystems, including the processor 103, a mass storage device 104, an operating system 105, management software 106, management data 107, a network adapter 108, system memory 112, an Input/Output Interface 110, a display adapter 109, a display device 111, and a human machine interface 102, can be contained within one or more remote computing devices 114a,b,c at physically separate locations, connected through buses of this form, in effect implementing a fully distributed system.
The computer 101 typically comprises a variety of computer readable media. Exemplary readable media can be any available media that is accessible by the computer 101 and comprises, for example and not meant to be limiting, both volatile and non-volatile media, removable and non-removable media. The system memory 112 comprises computer readable media in the form of volatile memory, such as random access memory (RAM), and/or non-volatile memory, such as read only memory (ROM). The system memory 112 typically contains data such as management data 107 and/or program modules such as operating system 105 and management software 106 that are immediately accessible to and/or are presently operated on by the processing unit 103.
In another aspect, the computer 101 can also comprise other removable/non-removable, volatile/non-volatile computer storage media. By way of example,
Optionally, any number of program modules can be stored on the mass storage device 104, including by way of example, an operating system 105 and management software 106. Each of the operating system 105 and management software 106 (or some combination thereof) can comprise elements of the programming and the management software 106. Management data 107 can also be stored on the mass storage device 104. Management data 107 can be stored in any of one or more databases known in the art. Examples of such databases comprise, DB2®, Microsoft® Access, Microsoft® SQL Server, Oracle®, mySQL, PostgreSQL, and the like. The databases can be centralized or distributed across multiple systems.
In another aspect, the user can enter commands and information into the computer 101 via an input device (not shown). Examples of such input devices comprise, but are not limited to, a keyboard, pointing device (e.g., a “mouse”), a microphone, a joystick, a scanner, tactile input devices such as gloves, and other body coverings, and the like These and other input devices can be connected to the processing unit 103 via a human machine interface 102 that is coupled to the system bus 113, but can be connected by other interface and bus structures, such as a parallel port, game port, an IEEE 1394 Port (also known as a Firewire port), a serial port, or a universal serial bus (USB).
In yet another aspect, a display device 111 can also be connected to the system bus 113 via an interface, such as a display adapter 109. It is contemplated that the computer 101 can have more than one display adapter 109 and the computer 101 can have more than one display device 111. For example, a display device can be a monitor, an LCD (Liquid Crystal Display), or a projector. In addition to the display device 111, other output peripheral devices can comprise components such as speakers (not shown) and a printer (not shown) which can be connected to the computer 101 via Input/Output Interface 110. Any step and/or result of the methods can be output in any form to an output device. Such output can be any form of visual representation, including, but not limited to, textual, graphical, animation, audio, tactile, and the like.
The computer 101 can operate in a networked environment using logical connections to one or more remote computing devices 114a,b,c. By way of example, a remote computing device can be a personal computer, portable computer, a server, a router, a network computer, a peer device or other common network node, and so on. Logical connections between the computer 101 and a remote computing device 114a,b,c can be made via a local area network (LAN) and a general wide area network (WAN). Such network connections can be through a network adapter 108. A network adapter 108 can be implemented in both wired and wireless environments. Such networking environments are conventional and commonplace in offices, enterprise-wide computer networks, intranets, and the Internet 115.
For purposes of illustration, application programs and other executable program components such as the operating system 105 are illustrated herein as discrete blocks, although it is recognized that such programs and components reside at various times in different storage components of the computing device 101, and are executed by the data processor(s) of the computer. An implementation of management software 106 can be stored on or transmitted across some form of computer readable media. Any of the disclosed methods can be performed by computer readable instructions embodied on computer readable media. Computer readable media can be any available media that can be accessed by a computer. By way of example and not meant to be limiting, computer readable media can comprise “computer storage media” and “communications media.” “Computer storage media” comprise volatile and non-volatile, removable and non-removable media implemented in any methods or technology for storage of information such as computer readable instructions, data structures, program modules, or other data. Exemplary computer storage media comprises, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The methods and systems can employ Artificial Intelligence techniques such as machine learning and iterative learning. Examples of such techniques include, but are not limited to, expert systems, case based reasoning, Bayesian networks, behavior based AI, neural networks, fuzzy systems, evolutionary computation (e.g. genetic algorithms), swarm intelligence (e.g. ant algorithms), and hybrid intelligent systems (e.g. Expert inference rules generated through a neural network or production rules from statistical learning).
An example of a database 200 is illustrated in
Related data element types may exist among the tables, for example the database may contain two or more tables, each having “Transmission” as a data element type. This can be done to place top level information in a single table and then to use common data element fields to link that top level table to other dependent tables to provide more detailed information in these dependent tables. The common or related data element types can serve as keys to link or associate the tables and thereby provide further detail regarding the subject matter of the data element types. For example, with the data element type “Transmission” there may be a dependent table for the data element value “Manual,” indicating additional information like “4-Speed” or “5-Speed.” Although the use of common data element types can provide automatic linkage, techniques can be used to specify a linkage, in which event the use of common data element types is not required.
Techniques for performing an analysis to determine the relationships between the various tables, and to virtually connect tables that are dependent through their linkage can be used. If two tables have more than one variable in common a “loop” is created, and techniques can be used to resolve such loops and thereby simplify the dependencies. In this manner the relationships between the various data element types comprising the database can be determined. It should be noted that, in addition to relationships between the various tables comprising the database, there is also an implicit link or association between each of the data element types comprising a single row or record within a table.
Once all the dependencies between the various tables or other database structures are known, it is possible to display, in a simplified format, the relationships among the various data element types and data element values included within the database, for example, to create list boxes or other data display objects to list the unique data element values for each relevant data element type. To assist in this process, conversion structures can be used to resolve dependencies, for example, to add the more specific entries, such as 4-speed or 5-speed, for “Manual” to the data element type “Transmission.” An example of list boxes displaying the unique data element values for selected fields or data element types in the database (in which the dependencies have been removed) is illustrated in
The database can be queried by specifying the data element types and data element values of interest and by further specifying any functions to apply to the data contained within the specified data element types of the database. The functions which can be used within a query can include, for example, expressions using statistics, sub-queries, filters, mathematical formulas, and the like, to help the user to locate and/or calculate the specific information wanted from the database. Once located and/or calculated, the results of a query can be displayed to the user with various visualization techniques and objects such as the list boxes illustrated in
The result of a standard query is typically a smaller subset of the data within the database, or a result set, which is comprised of the records, and more specifically, the data element types and data element values within those records, along with any calculated functions, that match the specified query. For instance, as indicated in
In an aspect of the present disclosure, illustrated in
In a further aspect, at 304a, one or more of the unique data element types and one or more of the unique data element values within a data element type can be assigned a code (for example, a binary code) that can be stored in the computer memory and easily processed by the computer, and that can be used instead of the actual alpha-numeric values for the data element values when processing the database. For example, for each data element value of each data element type, the methods and systems can assign a binary code, using the same binary code for each data element value which is the same, and a different binary code for each data element which is different. For each unique data element value, the methods and systems can create an entry that includes the assigned binary codes in the initial data structure for that data element type.
However, the methods and systems do not require binary coding. The code which is assigned can be a code that can also be sorted such as a numeric or alphabetic code. The ability to sort the values can enable displaying the values as part of a visualization of the data or when performing various functions like identifying minimum and maximum values. The assignment of a binary code can be performed when data records are first read from the database. Accordingly, the assigned binary code for each unique data element value and each unique data element type can be inserted in the corresponding initial data structure for that data element type and for the associated data element values for that data element type. If the data element type or the data element value is new it can be assigned a new binary code (for example, the next binary code in ascending order) before being inserted in the data structure. In other words, for each unique data element type, a unique binary code can be assigned to that data element type and to each unique data element value associated with that data element type.
Reference is now made to U.S. Pat. No. 8,244,741 B2, which is assigned to the same Assignee as the present application, and the teachings of which are incorporated herein by reference, wherein the process of associating a hash function with the relevant data structures and storing in memory the hash function along with the applicable database information contained in the structures, is described.
In an embodiment of the present disclosure, the methods and systems provided can instantiate a data structure, as illustrated in
Returning to
Using Tables 1-7 it is possible to create the referenced final data structure(s) which reflect various records contained within the database. Table 8 of
It is one aspect of the present disclosure that the above processes need only be completed once each time a database is loaded or reloaded, and the appropriate interim and final data structures can be created and stored in memory along with their associated identifier. These processes need not be repeated when queries are entered or changed, or when visualizations are entered or changed. However, the processes can be completed at any point in the life of a database.
In an aspect, illustrated in
To facilitate this processing the data element types and data element values of the query, the query itself can be converted to use the assigned binary codes as determined in step 304a of
The results obtained from a query, including the results of calculated functions specified within the query, can be included in a data structure associated with the data structure for that query. The resulting information can be stored in memory along with an associated unique identifier that can be used to retrieve the already processed result set whenever the query that yielded that result set needs to be re-executed. This results in a substantial savings in time and processing.
The data element types that are the subject of query can be referred to as classification element types and the data element types that are the subject of a function of filtering criteria can be referred to as function element types. These classification and function element types can be used to select a final data structure that contains the greatest number of these included element types at 302b. The final data structure selected can be referred to as a starting table. In the illustrated database there is only one final data structure and so this selection is simple. Databases with multiple final data structures can be processed in the same manner. If there are multiple final data structures having comparable element types, the starting table can be selected by using the final data structure having the most records.
The starting table can be processed using the query data structure to identify records in the database containing the data element types and the data element values which are the subject matter of the query at 303b. In an aspect, the methods and systems can identify records that contain data element values that are included within the query data structure. The methods and systems can initiate a result data structure and store within the result data structure information relating to the identified records at 304b. The result data structure can be instantiated to store the results of the processing, which can include results data structure information relating to the identified records. This information can be stored using the assigned identifier. Such information can include the applicable record number(s), the data element types and data element values, and the calculated functions matching elements of the query (or query data structure;) as well as the records, data element types and data element values, and the calculated functions that match less than all or none of the elements of the query.
Reference is now made to U.S. Pat. No. 6,236,986 B1 and hereinafter “the '986 patent” which is assigned to the same Assignee as the current application, and the teachings of which are incorporated herein by reference. This patent teaches the use of selection, status and frequency data strings, arrays, vectors and other data structures. For simplicity, future references to these structures will use the terms vector, strings and cubes even though other data structures should also be considered as being usable with the present methods and systems. Utilizing the data structures referenced above (including the sort order for the referenced data element values therein,) selection, status and frequency vectors can be instantiated for the various data element types, data element values and calculated results.
In an aspect, the vectors described in the '986 patent for the various data element types can be a numeric string having one position for each unique data element value of that data element type. Accordingly, such string will have a total number of positions equal to the number of unique data element values in that data element type. Each of the unique data element values for a data element type can be assigned a unique value that represents that particular data element value for that data element type. For example, if there are eight unique data element values for a particular data element type, each data element value can be assigned a number between “0” and “7,” or “1” and “8,” or “000” and “111,” etc., depending upon the convention or system utilized, and any convention or system can be used according to the teachings of the present disclosure. It is possible to process (through Boolean calculations and otherwise) these vectors regardless of the numbering system or convention used, and conversions can be made between the various systems and conventions. In the case of the frequency vector, which is typically a counting vector, the values which are assigned will reflect the number of occurrences of the particular data element value associated with that vector. It should be noted that different embodiments of the present methods and systems can use different combinations of the vectors described in the '986 patent or can use them for different purposes as will be described below.
As illustrated in Table 8a, below, an aspect of the present methods and systems can instantiate an initial selection vector for each unique data element type in the data structures, with a number of positions equal to the number of unique data element values for that data element type, and a single bit in each position, having a value equal to “0”, indicating that no query has been entered or received, and no selections have been made for that data element type. Similarly the initial status vector can be instantiated for each data element type, which can also have a number of positions equal to the number of unique data element values, and single bit with a value equal to “1” in all positions, indicating that all selections are possible. The frequency vector can also be instantiated, having a like number of positions, which can all initially be set to “0” values since no queries have been processed and no results have been counted. This information can be used to easily present the data to the user that is contained within the final data structures, for example, using list boxes such as those illustrated in
When a query is made, for example, for all vehicles having the Type—“Coupe,” the above selection vectors can be updated to reflect the query. The selection vector for the “Type” data element type becomes 1,0,0; indicating that “Coupe” has been selected (and Hatchback and Sedan were not selected). This is the same as entering “True” for the data element value “Coupe” and a “False” for all other possible element values for that data element type. It should be understood that selections can be made in more than one field or data element type, and if this is the case the selection vector for that data element type would be updated to include a “1” for the selected data element value, and a “0” for the rest of the data element values. Thus if “Honda” is also selected, the resulting selection vector for the data element type “Make” will be 0,0,0,1,0. Similarly more than one data element value can be selected within a data element type, and if this is the case then the selected values will still be represented by a “1” and the non-selected values will be represented by a “0.” The updated selection vectors associated with the selection of “Coupe” and “Honda” are illustrated in Table 8b. It should also be understood that the selection vectors would be updated and processed with every new selection or modification of a selection. With respect to the current example in which two selections have been made, there will be two updates to the selection vector and that vector will be processed two times as further described below.
The updated selection vector can then used to update the status vector, accordingly with this embodiment, the status vector can be updated to reflect the selection of both “Coupe” and “Honda”. Basically the updated selection vector can be copied into the status vector to create the updated status vector for each data element type. The updated status vector reflecting the selection of Coupe and Honda is illustrated in Table 8b.
Using the updated selection vector resulting from each modification thereof, the final data structures can be processed and an initial status vector for each such final data structure can be instantiated, starting with the designated starting table and progressing through any other final data structures containing the data element type affected by the query. The initial status vector for each final data structure can have a number of positions equal to the number of records in the data structure. So in the case of the present example this vector will have 16 positions, one for each of the 16 records contained in the starting table, Table 8. In an embodiment of the present disclosure, this initial table status vector can have a single bit in each position that will be used to indicate whether the corresponding record includes a selected data element value as contained the selection vector. The selection vector can be compared with the various records comprising the final data structures, in this case the starting Table 8, which comparison would result in an initial status vector for the table with a “1” in each position for records which have a data element value in the affected data element type that matches the data element value for such data element type in the selection vector. Note that in the present example, the values in each column of Table 8a are numbers from “0” to “n” where “n” is equal to the number of unique data element values for that data element type minus one (since the methods and systems started with the first listed value equal to “0”) while the selection vectors are in the format of a Boolean string with a “1” in the position of the selected data element value. Even though the format of the numbers are different, the comparison can still be made.
In the present example, the initial status vector for Table 8a will have a “1” in the positions corresponding to the first five records, and a “0” in all the other positions, indicating that only the first five records have “Coupe” indicated for the data element type, “Type.” Similarly after processing the updated selection vector due to the further selection of “Honda,” the updated status vector for the table will indicate that only records one through three match both of these query criteria, and record 13 matches Honda but not Coupe. The updated status vector for Table 8 is set forth Table 8c.
In addition to instantiating the initial data structure for the tables or other final data structures, the status vectors for each data element type can also be updated with each update of the status vector for each final data structure. Since the initial status vector for Table 8 after the selection of “Coupe” indicated that only records one through five had “Coupe” as a value for the data element type “Type,” only these matching records need be examined for the other data element types comprising each record. As each of the first five records is examined, the status vector for each final element type can be updated to reflect the presence of the particular data element value for that data element type. Accordingly the vector for the data element type “Type” will remain “1,0,0” since all five records have the data element value “Coupe.” The vector for the data element type “Engine” will have a value of “1” for the position corresponding to the data element value “1.8” and “0's” for the other positions. The vector will not change after processing the second record since it also includes a “1.8.” After processing the third record this vector will change to include a 1 in the 4th position since this record includes a data element value of “2.4.” The remaining vectors can be updated in the same manner. Accordingly, the updated status vectors for each of the data element types after processing the selection vector reflected the selection of “Coupe” is set forth in Table 8d.
After the selection of “Honda” the selection vector will be updated as illustrated in Table 8c, however, the status vectors for the field element types need not be updated since the first three records have already been processed and the values have not changed.
As the status vector for each data element type for each record is updated, the frequency vector for that data element type can also be updated. The frequency vector for each data element type reflects a count of the various data element values in that data element type. Accordingly with each occurrence of a data element value within the records the position of the frequency vector is incremented by one. The updated frequency vectors for records one through five, reflecting the selection of “Coupe” are illustrated in Table 8e. This process can be repeated for further selections, such as the selection of Honda in the present example.
In another embodiment of the present methods and systems, the status vectors for the final data structures and for the data element types can have a number of bits in each position that is equal to or greater than the number of data element types in which selections have been made in the query. Thus as selections are added, another bit can be added to each position of these vectors. Accordingly, in the present example in which two selections have been made in two data element types, each position within these vectors will have at least two bits. Also within these vectors each position will contain additional information reflecting the order of the selections. Each such data element type is therefore assigned a unique and subsequent position within the vectors to indicate an association with the selections in that data element type. In this example “Type” is assigned the first position and “Make” assigned the second.
In this embodiment, the initial status vector for each data element type is cleared (all positions set to 0). If the corresponding data element value exists in the selection vector, the position in the status vector corresponding to the data element type is set to 1. This process is repeated for the “Make” data element type. Accordingly the status vector after the receipt of a query selecting “Coupe” and “Honda” is illustrated in Table 8f. Note that within this vector “Coupe” is indicated as the first selection with the value “01,” and “Honda” is indicated as the second selection with the value “10.”
As before, an initial status vector can be created for the table. This table status vector can be used for the storage of intermediate combinations of associations. In an aspect, for each data record one or more of the following steps are taken. First, for each data element value in the record, the Boolean string corresponding to that data element value in the status vector for each data element type can be found. Next these strings can be combined by applying a logical inclusive OR operation. Next, the Boolean string resulting from this operation can be stored at the position in the table status vector corresponding to the current data record. This process can be repeated for each record in the final data structures. The resulting status vector for Table 8 is illustrated in Table 8g.
Once the table status vector for the final table(s) has been determined, it can be associated with a unique identifier (typically a hash function) and this information, reflecting the data element value for each data entry type for each record in the final data structure(s), can be stored in memory. A final status vector for each data element type reflecting the results of the query can then be computed based upon the table's initial status vector. For each element of each data element type's status vector, the subset of records in the table that contain a data element value corresponding to the element currently being computed can be examined. From this subset the largest of all of the elements in the table status vector that correspond to records in the subset being examined can be selected. The definition of largest in this context can comprise, for example, imposing a strict partial order on the set of combinations of associated data element types as represented by Boolean strings. The criteria used to impose such an order include, but are not limited to, the number of associated data element types, whether a particular field is present, or by assigning weights to the presence of each field and using the weight to determine order. The vectors in Table 8h represent the resulting status vector after processing the query for records matching the data element values “Coupe” and “Honda.” Within these vectors note that the value “11” indicates that the represented data element value has matched both query criteria, the value “01” indicates that the represented data element value has matched only the first criterion, and the value “10” indicates that the represented data element value has match only the second criterion.
The status vector therefore indicates that the data element “Coupe” as one of the selection criteria matched both selections. The data element value “Sedan,” however, while not matching the first selection did match the second selection. Accordingly at least one record matched “Honda” while not matching “Coupe” (rather it matched “Sedan” as denoted by the “10” entry in the “Type” Data Element Type). The frequency vector illustrated in Table 8h indicates that there were three occurrences of the data element value “Coupe” within the matching records. Similarly there were two occurrences of the data element value “1.8” within the matching records. Note that, as with the first embodiment with the two selections, only the first three records are of interest.
If a user were now to select the data element value of “Accord” in the data entry type “Model” the above process would be repeated to reflect this additional criteria in the query. The only remaining record which matches all three of these criteria is record 3. Record 13 matches “Accord” as well as “Honda,” but no other matches with “Accord” shall be found. It is important to note that after processing the first query, it is already known which records match the criteria of that first query; additionally, the result of this new query will be similar to the previous query except that an extra Boolean digit will be appended to all of the status vectors according to whether a match with “Accord” is found in the corresponding records. It is therefore possible (without departing from the scope of the present application), but not required, to use the status vectors resulting from that first query as input to the logical inclusive OR operation as described above instead of carrying out the steps required to evaluate the criteria common to both the first and subsequent queries.
It is therefore possible to determine which records match the query by comparing the various status vectors. The above described vectors can also be associated with an identifier (typically an identifier associated with the stored query vector) and stored in memory to be recalled whenever the same query is repeated. For example records 1 through 5 all include “Coupe” within the “Type” data element type, and the remaining records do not include a “Coupe” within the “Type” data element type, while only the first three records match both “Coupe” and “Honda.” Similarly the stored status vectors for the other data element types will indicate the data element values for each of these types, within the various records. In this manner if the query is reprocessed, the results are already known and can be retrieved with minimal additional processing whenever the same query is reused. It should be noted that the query itself (or its identifier) can also be considered the unique identifier for the results, since the intent is to associate the query with the results of that query because unless there is a change in the underlying data, a given query will always yield the same results. Once the query/result combination is cached or stored in memory, it can easily be retrieved if the query is repeated, without a need for additional processing to recalculate the results.
It should be noted that the query and query results can be stored independent of the initial and final data structures which reflect the data in the database, and also independent of the actual data in the database. Independent storage and retrieval of these elements enables storage of multiple query/result combinations. Each of these query/result combinations can represent a particular data state, and accordingly multiple data states can be stored, including the initial state in which no query or data selections have been made. Furthermore, each of the data states represented by the stored structures and vectors can be easily recalled and used, as will be discussed in more detail below.
Accordingly, the teachings of the present disclosure enable the user to determine “degrees of query match,” and as described further with respect to
In addition, an embodiment of the present methods and systems also allows a user to associate “weights” with specific query criteria and/or with the number of criteria matched since the vectors reflect not only which data element types and data element values were matched, but also the number that were matched. The frequency vectors can be used for the purpose of determining the number that were matched. As is apparent from
Accordingly, and as is illustrated in
As shown in
At step 301c, for the identified records, the methods and systems can identify the data element types that contain the relevant data element values and count the number of unique data element values within in each data element type. At step 302c, the methods and systems can display resulting data, such as the names of the data element types that contain relevant data element values, the unique data element values in each of the displayed names of the data element types and a count (See
For example in Table 8e it is evident that there were five records matching the data entry type “Coupe,” of which with respect to data entry type “Engine,” two had a value of “1.8,” with one record each for the values “2.4,” “3.6,” and “3.7.” Similarly there are three records having a Manual transmission and two records having an automatic transmission. Furthermore, after the selection of Honda, there were now only 3 records which match both “Coupe” and “Honda,” of which with respect to data entry type “Engine,” two had a value of “1.8,” with one record for the value “2.4.” Similarly there are two records having a Manual transmission and one record having an automatic transmission. An example of a potential data display as a result of this counting operation is shown in
Utilizing the teachings of the present disclosure, the process of querying a database can be substantially more robust, since all of the data element values in the database remain available for analysis. From the data display of
This ability to see closely matching data as well as matching data facilitates better decision making. For example if a user searched a travel database for flights leaving from Chicago going to New York, on US Air, and leaving before 8:00 AM on Monday, the prior art database systems would only display the matching flights, while with the teachings of the present disclosure, alternative flights from other airlines (for example matching the city and departure criteria but not the airline criteria) could be displayed. Similarly a user can be presented with flights not only from other airlines but also flights leaving at 8:15 AM.
In addition, since all of the data in the database remains available for analysis, the queries being made can be changed dynamically and in real time, with the results of the query being updated, also dynamically and in real time. Query changes may also include selection or de-selection of any of the displayed data element types or data element values. If Query changes do occur, one or more steps of
Furthermore in an embodiment of the present disclosure, priority values can be assigned to the data element types and data element values used within the query. Such data priority values can be used to manipulate the sort order, graphic and/or informational treatment applied to data elements when they are displayed by the techniques of the present disclosure. For example with the travel database the departure time can be weighed heavier than the airline, and the result set will be adjusted accordingly.
Returning to the previous automobile example, an additional selection can be made in Transmission type by selecting the value “Manual.” Since there are now selections in three separate fields there can be values that match all three, two out of three, one out of three or none in terms of “degrees of matching.” This has been illustrated in
As discussed with the flight example some fields may be more important to a given result set than others. For the discussed example in
The weighting can be a list of field names or even a combination thereof. So for example given such a dataset the combination of Type and Transmission (Type, Trans.) can take priority over Type and Make (Type, Make). Additionally the weighting can be user-configurable either before or during data analysis. A desired priority for some or all field names or combinations thereof may be configured on a temporary or permanent basis which is to be used for all queries. Additionally or alternatively, a user can adjust the priority of fields based upon fields selected in the current query. This priority can be achieved by multiple means including the order in which the criteria are specified or as part of the definition of the particular visualization object.
Furthermore in an embodiment of the present disclosure, it is possible to perform free-form searches in which the data element values and the data element types are searched for a particular search term in order to find those data records matching either all or particular combinations of the search terms. Boolean type searches search all data element types for each individual search term entered. This is complex and consumes significant computing resources. The teachings of the present disclosure greatly simplify the process of performing free-form searches by taking advantage of the separation and separate storage of the data element types and the data element values from the data records, and by searching data element types individually before finding an association between the types according to the search criteria.
For example, if the free-form search query “automatic ford” is entered, the entry is typically interpreted as finding those data records where one of the fields contains “automatic” and one of the fields contains “ford.” This is typically translated into a Boolean query such as (Type BEGINS WITH “automatic” OR Transmission BEGINS WITH “automatic” OR Make BEGINS WITH “automatic” OR Model BEGINS WITH “automatic”) AND (Type BEGINS WITH “ford” OR Transmission BEGINS WITH “ford” OR Make BEGINS WITH “ford” OR Model BEGINS WITH “ford”). As can be seen such an entry is complex and will consume significant resources to process. The complexity of such a query increases with the number of fields and search terms involved, usually rendering such free-form searches impractical or computationally expensive.
This is not the case according to the teachings of the present disclosure. For simplicity, if the query criteria are alphabetic, then an embodiment of the present methods and systems can exclude searching the numeric fields Engine and Price. An embodiment of the present methods and systems can also start a free-form search by searching each field individually for each individual search term or phrase, creating a status vector for the field representing the data element values that match one or more of the search terms. The Boolean query used to determine the matching data records is the logical conjunction of the free-form searches for each search term, the free-form searches being a logical disjunction of searches of each field for the search term; the Boolean query is one such example of this form of query. Notably, the methods and systems do not have to evaluate the entire query for each record or data element value, but instead specific expressions within that query. The Boolean strings in all of the status vectors must be long enough to contain the result of each and every Boolean expression necessary to compute the entire Boolean query correctly and without ambiguity; a minimal expression that will satisfy this property is a binary operator accepting one of the search terms and a value of a data element type. Two examples of such expressions are ‘Model BEGINS WITH “ford”’ or ‘Engine >2.0’. Each of these Boolean expressions is assigned a unique and subsequent position in the Boolean strings in the same way that data element types are assigned such positions as described above. At the end of this process every Boolean expression in the query must be valid. The definition of a valid Boolean expression is recursive and defined by the following criteria (a) it has been assigned a position in the Boolean strings in the status vectors, and (b) it must be a logical conjunction, disjunction or negation of valid Boolean expressions.
Each data element value in each data element type can be processed, either evaluating each Boolean expression against the value or ignoring it if the expression does not refer to this data element type, then a Boolean string can be generated consisting of the results of the expressions (where true corresponds to 1 and false or ignored to 0) and stored in the status vector at the position corresponding to the data element value. Using the example data set and search terms, since there are 8 minimal Boolean expressions required to compute the entire Boolean query, one for each search term/data element field combination, each Boolean string in the status vectors is 8 digits long. There are only two data element values for which one of the Boolean expressions evaluate to true: “Automatic” in Transmission and “Ford” in Make. Using the same order as given in the example Boolean query, the second bit (corresponding to the Boolean expression “Transmission BEGINS WITH ‘automatic’”) can be set to 1 in the string corresponding to “Automatic”, and the seventh bit (corresponding to the Boolean expression ‘Make BEGINS WITH “ford”’) can be set to 1 in the string corresponding to “Ford”. The resulting status vectors representing this search are set forth in Table 9a.
Having created the initial status vectors for each data element type, the query can be calculated, resulting in the table status vectors shown below in Table 9b. Table 9c illustrates the final status vectors for the data element types after traversing all of the records.
It is therefore possible to determine whether a data record or data element value matches the Boolean query by retrieving the corresponding Boolean string from the corresponding status vector, substituting each Boolean expression in the query with the true or false value at the corresponding position in the Boolean string, and evaluating the query. For example, the first record in the table has the Boolean string 01000000, meaning only the second Boolean expression (Transmission BEGINS WITH “automatic”) is true. Replacing the expressions in the Boolean query with their corresponding results gives the expression (0 OR 1 OR 0 OR 0) AND (0 OR 0 OR 0 OR 0)=0, so it is known that the first record does not meet the search criteria. However, the twelfth record has the Boolean string 01000010, and using the same process the expression (0 OR 1 OR 0 OR 0) AND (0 OR 0 OR 1 OR 0)=1 can be obtained; this record matches all criteria. The same process can be carried out for the data element values to determine which values of which data element types match the search terms.
An extension of the present disclosure can use these status vectors to compute additional instances of certain Boolean queries efficiently, to determine the number of search terms matched by records or data element types, and/or to indicate which combination of fields contain a valid association. This is possible because only the expensive Boolean expressions that identify which fields match which search terms are computed once, reducing the original Boolean query and any subsequent queries comprising the same expressions to a series of bitwise operations which can be computed extremely quickly.
To determine the number of search terms associated with a record, Boolean queries can be created for each search term comprising the logical disjunction of all Boolean expressions relating to that search term; the number of queries that evaluate to true corresponds to the number of matching search terms.
Each combination of fields can be found that comprise a valid association by storing each distinct Boolean string in the table status vector for which the original Boolean query evaluates to true. Determining the fields participating in a valid combination is done by finding each digit of the corresponding Boolean string that equals 1, then obtaining the field referred to in the Boolean expression corresponding to that digit.
If it is not necessary to know which of the Boolean expressions matched particular data records or data element values, a particular embodiment of this disclosure can manipulate the initial status vectors by coalescing the Boolean expressions which are subject to logical disjunction in the Boolean query. By reducing the number of expressions which have to be represented in the status vectors, the total space and computation required can also be reduced. The correctness of the query is preserved because the Boolean strings in the status vectors are themselves subject to logical disjunction during the processing of the table status vector, making them logically equivalent.
It is also possible to apply constant propagation to the Boolean query prior to calculating the first table status vector, eliding the calculation of expressions that will always evaluate to either true or false. Determining whether an expression is constant can be achieved either through prior knowledge of the data set (for example, if the maximum of the values of a data element type is known, the result of all comparisons with a value greater than that maximum can be proved without looking at any other values) or after processing some or all of the values to conclusively determine the truth of the expression.
Similarly, it is also possible to use auto-complete functionality to facility the entry of search terms for the same reason. Again, using the stored data structures it is possible to dynamically search the content of these structures as entries are being made for the desired search criteria. Using the discussed methods a Free Form Search with word or phrase auto-complete functionality can be improved by taking into account the search entries in the search field and ranking auto-complete suggestions based on “degrees of query match”.
In the results section of the search the valid combinations of related or associated fields and corresponding values are shown. In this example “Toyota” in the field “Make” and “Automatic” in the Field—“Transmission” is the only valid combination that has matches in two separate distinct fields with a valid relationship or association. Furthermore, results matching only one term at a time are also shown.
A more targeted result would be to limit the amount of valid search result combinations to searching the identical word (in this case “Bike”) in only one field instead of many. To illustrate this using the previous examples shown above
If the user is interested in searching for relationships or associations across multiple fields then the user can explicitly enter the search terms for the number of field combinations they are looking for. For example in
In an aspect, illustrated in
In an aspect, illustrated in
The methods can further comprise assigning a unique code, which code is of a type that can be used to facilitate computer processing, to each unique data element value within each data element type, wherein the entries in the initial data structures and the query data structure for the data element values are their assigned code instead of the actual data element values. The methods can further comprise associating a unique identifier to each of the initial, final, query and results data structures, and storing in memory the initial, final, query and results data structures along with their respective unique identifier.
The methods can further comprise displaying one or more of the data element values in a manner that indicates whether or not the data element values were included in the query data structure. The methods can further comprise counting the frequency of occurrence of each of the data element values included in the results data structure, and using the results of such counts to prioritize such data element values. The methods can further comprise sorting the displayed data element values included in the results data structure by the order of their frequency of occurrence. The methods can further comprise utilizing the number of occurrences to provide suggestions for the values for alternative queries of the database. The methods can further comprise counting the number of unique data element values included in the results data structure and utilizing such count to further analyze the information contained the database. The methods can further comprise counting the number of records containing one or more of the data element values included in the results data structure and utilizing such count to further analyze the information contained the database. The methods can further comprise counting the number of records that do not contain one or more of the data element values included in the results data structure and utilizing such count to further analyze the information contained the database.
The methods can further comprise using values in the initial database structures to suggest values for the query criteria during the entry of values for queries of the database, thereby enabling the user to accept such suggested values without actually entering the full query values. The methods can further comprise using values in the initial database structures to determine whether the values being entered for a query are either data element types or data element values and thereby afford searches of the database without the specification of whether the entered query values are data element types or data element values.
In an aspect, illustrated in
In an aspect, generating the final data structure based on the plurality of initial data structures can comprise generating binary codes for corresponding unique data elements. Generating the final data structure can comprise resolving at least one of data element dependency and data element redundancy between the plurality of initial data structures.
In a further aspect, illustrated in
In an aspect, identifying the data structure relevant to the query structure can comprise identifying a data structure comprising the greatest number of identified data element types relevant to the query. Identifying records in the data structure based on the query structure can comprise identifying records associated with at least one of the data element types relevant to the query and the data element values relevant to the query. Providing the records in response to the query can comprise displaying at least one of unique data element types, unique data element values, and a count of the number the unique data element values.
In one aspect, providing the records in response to the query can comprises displaying data elements of the records according to degrees of relevance. For example, different degrees of relevance can be represented by different color shades. In another aspect, receiving a query for information from the database can comprise receiving the query as a free-form search. In such scenario, identifying records in the data structure can comprise generating a status vector based on the free-form search. In another aspect, receiving a query for information from the database can comprise receiving a weight value for at least one corresponding data element type. In such scenario, providing the records in response to the query can be based on the weight value.
While the methods and systems have been described in connection with preferred embodiments and specific examples, it is not intended that the scope be limited to the particular embodiments set forth, as the embodiments herein are intended in all respects to be illustrative rather than restrictive.
Unless otherwise expressly stated, it is in no way intended that any method set forth herein be construed as requiring that its steps be performed in a specific order. Accordingly, where a method claim does not actually recite an order to be followed by its steps or it is not otherwise specifically stated in the claims or descriptions that the steps are to be limited to a specific order, it is no way intended that an order be inferred, in any respect. This holds for any possible non-express basis for interpretation, including: matters of logic with respect to arrangement of steps or operational flow; plain meaning derived from grammatical organization or punctuation; the number or type of embodiments described in the specification.
It will be apparent to those skilled in the art that various modifications and variations can be made without departing from the scope or spirit. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims.
This application is a Continuation of U.S. Non-Provisional application Ser. No. 14/035,656, filed on Sep. 24, 2013, which is herein incorporated by reference in its entirety.
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| Number | Date | Country | |
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| Parent | 14035656 | Sep 2013 | US |
| Child | 17018669 | US |
