Ontological information retrieval system

Abstract

An ontological information retrieval system is provided. According to an embodiment, the subject ontological information retrieval system can be utilized for computer-aided clinical Traditional Chinese Medicine (TCM) practice. In one implementation, a graphical user interface (GUI) is provided, enabling a user to input a query with symptoms determined from a patient, and the system's parser can find instances of the symptoms in a document object model (DOM) tree of the TCM ontological information. Diagnosis based upon the symptoms can be communicated to the user through the GUI. A relevance index (RI) and/or a frequency index (FI) can be further provided for evaluating a diagnosis by comparing the symptoms determined from a patient with the expected symptoms of the diagnosed illness and returning a value based on the number of matched symptoms, or a weighted index of matched symptoms.

Description

BACKGROUND OF THE INVENTION

Traditional Chinese Medicine (TCM) is enshrined in the local law of the Hong Kong SAR. For this reason computer-aided clinical TCM practice has become a quest for many people. One of these quests is to retrieve herbs with respect to their temperament and curative effects.

Ontology can be used to organize TCM practice. Ontology is a data model that represents a set of concepts within a domain and the relationships between those concepts. Ontology is used to reason about the objects within that domain.

For example, for a query of Q{x, y) the retrieved result should be a conclusion by inference with the two actual parameters x and y. The process of conclusion by inference is called parsing and the piece of software or computational logic used to achieve this conclusion is referred to as a parser. The combination of “query+semantic net+ontology” is the basis of a telemedicine system, which administers medicine over a network, such as the Internet. Telemedicine refers to administering medicine or medical information over a network that supports wireless and wireline communication. For example, a telemedicine environment may be made up of many mobile and/or stationary clinics that collaborate wirelessly. Each clinic includes a clinical telemedicine diagnosis/prescription system that can be operated by a physician, and a pharmacy. A physician can treat patients locally by using the clinical telemedicine diagnosis/prescription system.

TCM is highlighted here as an illustrative example of a domain that can be represented and accessed via an ontological information retrieval system. The subject invention can also be applied to other domains.

BRIEF SUMMARY OF THE INVENTION

The present disclosure relates to an ontological information retrieval system utilizing a three layer architecture. According to one embodiment of the invention, an ontological information retrieval system is provided that represents an ontological layer in an annotated form, represents the annotated form of the onotological layer as a document object model (DOM) tree for parsing the data, and utilizes a graphical user interface (GUI) to represent the DOM tree for human understanding and manipulation. Other human interfaces to the DOM tree can be used with the subject invention as will be apparent to one skilled in the art.

In accordance with the present invention, a DOM tree containing attributes and their associations is provided for establishing a semantic network to parse the ontological data. A query can be mapped into a semantic and the DOM searched to find instances of that semantic.

A specific embodiment of the subject ontological information retrieval system can be utilized for computer-aided clinical TCM practice. In one implementation, a user can input a query with symptoms determined from a patient, and the system's parser can find instances of the symptoms in the DOM tree. The instances can be communicated to the user by, for example, highlighting the instances of the symptoms in the DOM tree displayed to the user.

A relevance index (RI) can be further provided for evaluating a diagnosis by comparing the symptoms determined from a patient with the expected symptoms of the diagnosed illness and returning a value based on the number of matched symptoms.

A frequency index (FI) can be further provided for evaluating a diagnosis by comparing the symptoms determined from a patient with the expected symptions of the diagnosed illness with additional weighting for the major symptoms of the illness. The FI takes into consideration the importance of a symptom, which can include categories such as major criteria and minor criteria of an illness.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a block diagram of a 3-layer architecture for an ontological information reterival system in accordance with an embodiment of the subject invention.

FIG. 2 shows a GUI of a sample parser in accordance with an embodiment of the present invention.

FIG. 3 shows a GUI of a system in accordance with an embodiment of the present invention.

FIG. 4 shows a GUI for selection of symptom attributes in accordance with an embodiment of the present invention.

FIGS. 5A and 5B show a GUI for presenting matched symptoms and sorted results for an example in accordance with an embodiment of the present invention. FIG. 5B shows a close-up of the data grid for the sorted relevance index of the GUI illustrated in FIG. 5A.

FIG. 6 shows a close-up of a GUI presenting a selection result for explaining a verification method in accordance with an embodiment of the present invention.

DETAILED DISCLOSURE OF THE INVENTION

An ontological information retrieval system is provided. The subject ontological information retrieval system can utilize a three-layer architecture for transitive mapping. FIG. 1 shows a block diagram representation of the three-layer architecture. The bottom layer is the ontological layer 10 providing the ontological information. In certain embodiments of the present invention, the ontological information can be provided in annotated form. For example, Extensible Markup Language (XML) can be used to represent the ontological information. The middle layer provides the semantic net 20, which is the machine-processable form (e.g., machine language of a processor) of the ontological layer 10. The semantic net 20 utilizes logic representations for all the information of the ontological layer 10. For example, attributes and their associations can be represented. The logic representation of the semantic net 20 can be referred to as a Document Object Model (DOM) tree. The DOM tree can be used to parse the ontological layer 10. For example, the DOM tree can be used to map a query (e.g. Q{x,y)) from the top layer 30 into a semantic. Therefore, a semantic in the DOM tree can be found by tracing a semantic path. The top layer (query layer 30) provides the syntactical representation of the semantic net 20 for human understanding in the form of a system of queries.

For a perfectly mapped system, the three layers are transitive. That is, when an element in the query layer 30 is related to an element in the semantic net layer 20, and the element in the semantic net layer 20 is related to an element in the ontology layer 10, then the element in the query layer 30 is related to the element in the ontology layer 10.

The subject ontological information retrieval system can be applied to a telemedicine system. In such an embodiment, the ontological information can relate to, for example, TCM. Accordingly, the ontological layer 10 can include available TCM formal information obtained from the classics and treatises on the subject (also referred to as TCM vocabulary). The representation of this information can be provided in annotated form by using metadata such as XML. The ontological layer 10 is represented with a DOM (semantic net 20) configured in accordance with an embodiment of the present invention, and the query layer 30 is provided in the form of a graphical user interface (GUI).

Aspects of the invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform particular tasks or implement particular abstract data types. Moreover, those skilled in the art will appreciate that the invention may be practiced with a variety of computer-system configurations, including multiprocessor systems, microprocessor-based or programmable-consumer electronics, minicomputers, mainframe computers, and the like. Any number of computer-systems and computer networks are acceptable for use with the present invention. In addition, computer systems, servers, work stations, and other machines may be connected to one another across a communication medium including, for example, a network or networks.

In accordance with the present diclsosure, computer-readable media include both volatile and nonvolatile media, removable and nonremovable media, and contemplate media readable by a database, a switch, and various other network devices. By way of example, and not limitation, computer-readable media comprise media implemented in any method or technology for storing information. Examples of stored information include computer-useable instructions, data structures, program modules, and other data representations. Media examples include, but are not limited to, information-delivery media, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile discs (DVD), holographic media or other optical disc storage, magnetic cassettes, magnetic tape, magnetic disk storage, and other magnetic storage devices. These technologies can store data momentarily, temporarily, or permanently.

The invention may be practiced in 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 may be located in both local and remote computer-storage media including memory storage devices. The computer-useable instructions form an interface to allow a computer to react according to a source of input. The instructions cooperate with other code segments to initiate a variety of tasks in response to data received in conjunction with the source of the received data.

The present invention may be practiced in a network environment such as a communications network. Such networks are widely used to connect various types of network elements, such as routers, servers, gateways, and so forth. Further, the invention may be practiced in a multi-network environment having various, connected public and/or private networks.

Communication between network elements may be wireless or wireline (wired). As will be appreciated by those skilled in the art, communication networks may take several different forms and may use several different communication protocols. And the present invention is not limited by the forms and communication protocols described herein.

In accordance with certain embodiments of the present invention, a system including one or more processors, memory, a display, and an input device is provided for retrieving ontological information and providing that information to a user by using the three-layer architecture as described with respect to FIG. 1. All or portions of the ontological layer 10 can be stored in the memory of the system. The semantic net 20 can be implemented as computer-readable (processor-readable) instructions stored in the memory of the system. The query system 30 can be provided in the form of a GUI displayed on the display of the system. A user can manipulate and interact with the GUI by using the input device.

For a telemedicine application, the semantic net 20 is the machine processable form of the TCM ontological layer and the GUI for the query system 30, which abstracts the semantic net, is utilized for human understanding and manipulation. The symptoms that are keyed-in via the GUI are captured as actual parameters for the query to be implicitly (user-transparently) constructed by the GUI system as input to the parser. The parsing mechanism draws the logical conclusion from the DOM tree (e.g., the corresponding illness for the query). The ontological layer 10 defines the bounds of the diagnosis/prescription operation. The ontological layer is the vocabulary and the operation standard of the system.

For embodiments utilizing XML for the ontological layer, the parser can be established using a software language such as VB.net (Visual Basic for the Internet) and compiled into machine readable code.

A GUI of a sample parser according to one embodiment is shown in FIG. 2. The sample parser can match an attribute with the XML annotation and display the matches for the query. For example, instances of symptoms input into the query can be displayed. In a specific embodiment, the parser can convert an XML annotation into a DOM tree and highlight the parameters that were input in the query. The parser shown in FIG. 2 does not return the conclusion, but embodiments are not limited thereto. In a further embodiment, the parser can return the conclusion. For example, the relevant illness name and type can be highlighted or displayed to the user after inputting a query indicating sympotoms of an illness.

In yet a further embodiment, a relevance index (RI) can be incorporated to enable a user to evaluate the results. For example, the RI can be calculated based on frequency (i.e., the number of matched symptoms.

As another embodiment, a frequency index (FI) can be used to improve the RI calcualation by incorporating weighting factors. For example, for each disease type, the symptoms can be categorized and weighted. FIG. 6 shows a result of a search. The symptoms were categorized as major (), minor (), tongue surface () and pulse (). Each symptom is also assigned a weight, eg: 0.5 for main symptoms, 0.3 for accompanies and 0.1 for both tongue surface (tongue analysis) and pulse (heart rate). If the case only describes symptoms that do not include main and accompany symptoms, those symptoms are viewed as main symptoms. The calculating method is listed below for the result shown in FIG. 6:

Main Symptoms:

• All symptoms=7, Matched symptoms=3, ratio=0.5FI=3/7*0.5=0.21Tongue Surface Symptoms:FI=0/2*0.1=0Pulse Symptoms:FI=0/2*0.1=0Total FI score=0.21+0+0=0.21
• Relevance score based on frequency=3

The FI score gives the biggest ratio or weight to major symptoms due to their importance. In contrast, the RI score is based only on frequency. The FI score can be advantageous in certain situations because when the score is based on only frequency, the disease which has more matched symptoms that are minor or in pulse would appear to be a better match, and a disease that has less matches, but scored the most in the main symptoms may be inadvertently missed.

Following are examples that illustrate procedures for practicing and understanding the invention. These examples should not be construed as limiting.

Example 1—XML Annotation of Ontological Layer

Appendix A shows a sample disease, the common cold, annotated with an XML tree. The general structure for the XML annotation of TCM follows the following framework.

- <disease>
<proof_of_disease>
<syndrome differentiation>
<meridian A>
<symptom>
<meridian B>
<symptom>

An example of the XML annotation for 38 illnesses is shown in Appendix C, as disclosed in U.S. provisional application Ser. No. 61/229,545, filed Jul. 29, 2009, which is incorporated herein by reference in its entirety.

The structure shown can be used to represent ontological information for TCM. But other structures may be used and other domains may be represented and accessed using an ontological information retrieval system.

Example 2—TCM Information Retrieval

According to one embodiment, an ontological information retrieval system is implemented to identify all the symptoms (query attributes) with respect to the “10 questions” (). In particular, the list of 21 identifications is as follows: TCM []: chills and fever [], head and body [], fecal [], urine [], diet [], thoracoabdominal [], sweat [], hearing/vision [], cough [], sputum [], pain (location, form) [], sleep [], complexion [], nose [], lips [], throat/pharynx [], vomit [], mental status [], menses [], vaginal discharge [], tongue [], surface or tongue [].

These 21 basic symptoms for “” are tabulated in the tables of Appendix B from Tables 1A to 1D. Table 1E provides a summary of the Symptoms identified based on the “10 questions ()”.

An XML annotation was created for 38 chosen illnesses from some established TCM classics. The XML annotation of these 38 illnesses is shown in Appendix C, as disclosed in U.S. provisional application Ser. No. 61/229,545, filed Jul. 29, 2009, which is incorporated herein by reference in its entirety. When the XML annotation is input to the parsing mechanism such as shown in FIG. 2 the XML annotation is displayed as a DOM tree. The GUT of the parser also allows the user to input a query with symptoms. Then, the parser can find these symptoms and highlight them on the DOM tree. Alternatively, the parser can return a disease conclusion, a relevance index, or a frequency index as discussed above.

The XML annotation in Appendix C for the 38 illnesses includes the 21 symptoms as their attributes. Together they form the subsumption hierarchy that lets symptoms associate with illnesses.

When the RI is incorporated, the system user, such as a physician, can evaluate the diagnosis. For example, if the physician obtained only two symptoms from the “10 questions (),” but the classical information shows that there could be 10 symptoms all together. Then, the RI is the score for the quality of the diagnostic process.

To reduce search time in embodiments where the sample parser program matches symptoms by loading the data and then searching the data, the loading of the data (such as a Display Disease XML) can be separated from the searching so that subsequent searches can utilize the same loaded data. FIG. 3 shows the separate functions. The loaded Disease XML tree is the annotated form of the ontological layer (bottom layer) and the parser program loads the XML tree as a DOM tree.

The physician can select the symptoms attributes by clicking the combo boxes shown in the GUI. The symptom attributes are extracted based on the TCM vocabulary and Table 1A to 1D of Appendix B. After the symptoms attributed are selected, the program matches the attributes with the XML annotation of 38 illnesses once the search button is clicked as shown in FIG. 4. The disease XML annotation shown in the figure is for all internal illnesses. Below each illness, there are nodes describing the symptoms. The node can be highlighted, in yellow for example, if it is correctly matched with the input symptoms attributes.

Since some symptoms of different diseases may be the same, the relevance index of each illness is calculated. The relevance of the matched attributes can be measured for the diagnostic process (basic: frequency).

In one embodiment, a 2D array can be used to store the matched symptoms and disease name and the number of matched symptoms can be calculated to determine as their scores. The disease name and score is passed to another 2D array and then sorted.

In another embodiment; a datatable, which is a VB.net object for storing data in a table format, can be used. The data stored in the table format can then be placed into the data. Grid. For example, the VB.net object data table can store the illness names that have symptoms matched and the RI, which is calculated by the number of matched symptoms.

Example 3—Matched Symptoms and Sorted Results

FIGS. 5A and 5B illustrate an example symptom query and results. In particular, after inputting symptoms, the display indicates the following:

• • Yang edema—wind edema flooding () has five highlighted matched symptoms, so the relevance index is 5.
  • Headache—liver yang headache () has two matched symptoms so the relevance index is 2. Here, the relevance index is based on the number of matched symptoms.

The result shows that the patient is more likely to catch Yang edema—wind edema than a Liver yang headache. The sorted index is for physician's reference.

Example 4—Methodology Base

The UMLS (Unified Medical Language System) is a medical ontology for allopathic applications and is intrinsically suitable for textual mining. It aims to resolve the difference in terminologies among different incompatible medical systems. The semantic groups in level 1 represent the different domains of query (e.g. TCM diagnosis). Level 2 is the semantic net to formally give one unique answer to a specifically formulated query. Level 3 is the ontological infrastructure for the “global allopathic view,” which is described by Jackei H. K. Wong in “A Concise Survey by PhraPharm on Data Mining Methods,” (2008), which is incorparated by reference herein in its entirety.

In addition to text mining, automatic semantic aliasing support can be included in the evolution of the ontology as described by Jackei H. K. Wong et al. in “Real-Time Enterprise Ontology Evolution to Aid Effective Clinical Telemedicine with Text Mining and Automatic Semantic Aliasing Support,” Proceedings of the OTM (Nov. 9-14, 2008), Vol. 5332 Lecture Notes in Computer Science; (2008), which is incorporated by reference herein in its entirety.

For example, TCM ontology was built based on all the canonical texts. A physician extracts a list of symptoms for a patient with a rigid diagnostic procedure. This list of symptoms is then matched with those extracted from canonical texts in the form of descriptors for different diseases. The different matches would have varying relevance. A relevance (index) of 0.7 (70%) to Cough, for example, indicates that the patient's sickness has 70% likelihood to the Cough context. That is, it could betreated with recipes for Cough. Then, the rest 30% difference could mean one of the following:

• • a) if the symptoms for the 30% are “minor” or “tongue surface” or “pulse” then the patient's sickness X is perhaps just Cough.
  • b) If the symptoms for the 30% are “major” then “although the sickness X can be treated like Cough in the beginning but the sickness may not be Cough.
  • c) What follows the second point above include: i) the extraction from the canonical texts to build the different descriptors for the TCM ontology is flawed; sickness X was a miss, and ii) sickness X is a new form of disease, which was never recorded canonically and therefore a discovery.The discovery can then be recorded formally to become part of the revised canonical information. Thus, such a system can build on itself to expand the ontological domain.

All patents, patent applications, provisional applications, and publications referred to or cited herein are incorporated by reference in their entirety, including all figures and tables, to the extent they are not inconsistent with the explicit teachings of this specification.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application. In addition, any elements or limitations of any invention or embodiment thereof disclosed herein can be combined with any and/or all other elements or limitations (individually or in any combination) or any other invention or embodiment thereof disclosed herein, and all such combinations are contemplated with the scope of the invention without limitation thereto.

APPENDIX A
<?xml version=“1.0” encoding=“Big5” Cold Disease XML Tree?>
- < flu>
- < cold / Wind-cold syndrome>
- < main symptoms>
- < appearances>
- < aversion to cold>
< severe aversion to cold>id=“1”</ severe aversion to cold>
</ aversion to cold >
- < fever>
< low fever>id=“1”</ low fever>
</ fever>
- < sweat>
< no sweat>id=“1”</ no sweat>
</ sweat>
- < head and body>
< headache and sore limbs>id=“1”</ headache and sore limbs>
</ head and body>
</ appearances>
- < lungs>
- < nose>
< runny nose>id=“1”</ runny nose>
</ nose>
- < pharynx>
< itchy throat>id=“1”</ itchy throat>
</ pharynx>
- < cough>
< cough and heavy voice>id=“1”</ cough and heavy voice>
</ cough>
- < sputum>
< thin, white sputum>id=“1”</ thin, white sputum>
</ sputum>
</ lungs >
</ main symptoms>
- < related symptoms>
< not thirsty or thirsty and prefer hot drinks>id=“1”</ not thirsty or
thirsty and prefer hot drinks >
</ related symptoms>
- < surface of tongue / fur>
< thin, white fur>id=“1”</ thin, white fur >
</ surface of tongue / fur >
- < pulse >
< floating and/or rapid pulse>id=“1”</ floating and/or rapid pulse >
</ pulse>
</ Wind-cold syndrome>
- < Wind-heat syndrome>
- < main symptoms>
- < appearances>
- < aversion to cold>
< slight aversion to cold>id=“2”</ slight aversion to cold>
</ aversion to cold>
- < fever>
< high fever>id=“2”</ high fever>
</ fever>
- < sweat>
< sweat>id=“2”</ sweat>
</ sweat>
- < head and body>
< swelling pain in the head>id=“2”</ swelling pain in the head>
</head and body>
</ appearances>
- < lungs>
- < nose>
< nasal congestion and sticky and yellow nasal fluid>id=“2”</
nasal congestion and sticky and yellow nasal fluid>
</ nose>
- < pharynx>
< pain and swelling in the throat / pharynx>>id=“2”</ pain and
swelling in the throat / pharynx>
</ pharynx>
- < cough>
< cough, coarse voice, rapid breathing >id=“2”</ cough, coarse
voice, rapid breathing>
</ cough>
- < sputum>
< sticky sputum in yellowish or white color>id=“2”</sticky sputum
in yellowish or white color>
</ sputum>
</ lungs>
</ main symptoms>
- < related symptoms>
< thirsty and prefer to drink>id=“2”</ thirsty and prefer to drink >
</ related symptoms>
- < surface of tongue / fur >
< thin, white and dry tongue surface or thin, white, and reddish
around the edge of the tough surface>id=“2”</ thin, white and
dry tongue surface or thin, white, and reddish around the edge of
the tough surface >
</ surface of tongue>
- < pulse>
< floating pulse>id=“2”</ floating pulse>
</ pulse>
</ wind-heat syndrome>
- < summer-heat dampness syndrome>
- < main symptoms>
- < appearances>
- < aversion to cold>
< slight aversion to cold>id=“3”</ slight aversion to cold>
</ aversion to cold>
- < fever>
< fever in the body>id=“3”</ fever in the body>
</ fever>
- < sweat>
< little sweat>id=“3”</ little sweat>
</ sweat>
- < head and body>
< dizziness and swelling pain in the head, sore limbs>id=“3”</
dizziness and swelling pain in the head, sore limbs >
</ head and body>
</ appearances>
- < lungs>
- < nose>
< runny nose and sticky nasal fluid>id=“3”</ runny nose and sticky
nasal fluid >
</ nose>
- < pharynx>
< sore throat>id=“3”</ sore throat>
</ pharynx>
- < cough>
< cough>id=“3”</ cough>
</ cough>
- < sputum>
< sticky sputum in white or yellow color>id=“3”</ sticky sputum in
white or yellow color>
</ sputum>
</ lungs>
</ main symptoms>
- < related symptoms>
< thirsty and vexation >id=“3”</ thirsty and vexation >
</ related symptoms>
- < surface of tongue / fur >
< yellow or yellow greasy moss fur>id=“3”</ yellow or yellow
greasy moss fur>
</ tongue surface / fur>
- < pulse>
< thin pulse>id=“3”</ thin pulse>
</ pulse>
</ summer-heat dampness syndrome>
</ flu / cold>

Appendix B

TABLE 1A
5 symptoms
Wind-cold
syndrome	Head and Body	Stool	Urine	Diet
Severe	Headache	Loose stool	Reddish and	Not thirsty
aversion to			short
cold			urination
Mild aversion	Sore and pain	Diarrhea before dawn	Dysuria	Prefer cold drinks
to cold	in the limbs
Slight aversion	Swelling pain in	Loose stool	Poor urine	Thirsty and want to
to cold	the head		flow	drink
Low fever	Dizziness and	Constipation	Yellowish and	Irritable and thirsty
	swelling pain in		reddish urine
	the head
High fever	Aching pain in	Constipation; hard stool	Lack of urine	Thirsty but do not
	limbs		or stool	want to drink
Fever in the	Chest and	Constipation; reddish stool	Incontinence	Slimy mouth
body	hypochondriac
	pain
No fever	hypochondriac	Poor stool	Yellowish and	Dry mouth and want
	pain		reddish urine	to drink
Tidal fever	Weight loss	Constipation	Loose stool	Prefer hot drink
	and fatigue
Easy to catch	Weight loss	Constipation	Incontinence	Low appetite
cold
Aversion to	Cold limbs	Dark stool	Dry stool	Eat little
cold
Fever in the	Body pain	Constipation and yellowish	Loose stool	Vexation and prefer
palm and feet		urine		hot drinks
in the afternoon
Tidal fever in	Swollen body	Constipation and no urine	Reddish urine	Thirsty but do not
the afternoon				want to drink
Tidal fever;	Swollen feet	incontinence	Short urine	Thirsty
always feel			flow and
cold			yellowish
			urine
Tidal fever in	Cold fever and	Incontinence	Dysuria	Eat little but feel full
the afternoon	back pain
Aversion to	Lumber pain	Constipation	Loose stool	Vexation and taste
cold and wind				bitter
Aversion to	Body Shivering	Dry stool	Little urine	Faint after eat and
cold with fever			flow	drink too much
Fever;	Aversion to	Constipation	Short urine	Thirsty and want to
sometimes	cold with cold			drink
sweat	body
sometimes no
sweat
Low fever	Swollen lower	Hard-bound stool	Difficult	Reduced food intake
	body		urination
Fever	Lumbar pain	Constipation	Urination with	Thirsty and have
			stone	hard-bound stool
Aversion to	Dizziness and	Loose stool	Pain during	Cannot swallow
cold	headache		urination
Fever	Dizziness and	Hard-bound stool	Urination with	Cannot Swallow
	blurry vision		blood
Easy to catch a	Dizziness	Diarrhea before dawn	Urination with	Loss of appetite
cold			blood
Sometimes feel	Cold in the	No stool	Reddish	Thirsty and want to
cold and	body and limbs		blood	drink
sometimes feel
hot
Aversion to	Dizziness	Loose stool	Turbid urine
cold; lack of
energy
Aversion to	Fatigue	Constipation	Poor urine	Vexation and thirsty
cold and wind			flow
Aversion to	Aversion to	Constipation	little urination	Eat little
cold with high	cold and cold
fever	limbs
Mild aversion	Cold	Hard-bound stool	Congestion	Fever and thirsty
to cold with	extremities and
high fever	sweating
Severe	Fatigue and	Difficulty in passing stool	Difficulty with	Loss of appetite
aversion to	short breathing		urination
cold with low
fever
	Pain in	Difficulty in passing stool		High fever, vexation,
	shoulder back;			and thirsty
	left arm
Aversion to	Palpitation and	Stool contains mucus	Fatigue	Not thirsty
cold	lumber aching		during
	pain		passing stool
Aversion to	Lumbago	Dry stool	Frequent	Thirsty but do not
wind	aching pain		urination	and want to drink
	and legs sore
Fever	Fatigue in limbs	Loose stool	Frequent	Vexation and want
			urination	to drink water
Aversion to	Fatigue and	Diarrhea	Tubid urine	Rapid digestion of
cold	lack of energy			food and susceptible
				to hunger
Alternations in	Numbness in	Yellowish, smelly stool	Sweet	Hungry but lack of
chills and fever	skin			appetite
Cold in the	Fatigue in the	Diarrhea	Clear urine	Thirsty but do not
body and limbs	body and limbs,			want to drink
	joint pain
Body heat	Joint swollen	Smelly stool	Turbid as	Thirsty but do not
			cream	want to drink
Tidal fever	Long-term	Sloppy stool	Enuresis	Loss of appetite
	fatigue
Alterations in	Swelling joint	Diarrhea due to indigestion	Clear urine	Fever and thirsty
cold and fever
Aversion to	Deformity	Stool sometimes hard-	Frequent	Diarrhea and do not
cold		bound sometimes watery	urination and	want to drink
			clear urine
Fever	Fatigue	Difficulty in passing stool	Clear urine	Lack of appetite
Aversion to	Aching pain in	Dry stool	Short urine	Lack of appetite
cold with fever	the entire body		flow and
			yellowish
			urine
Cold in the	Facial and	Difficulty in passing stool		Lack of appetite
body and limbs	lower extremity
	edema
Aversion to	face, neck,			Lack of appetite
cold and prefer	chest and arm
warm	with blood mole
	Red palm			Abdominal
				distention and lack
				of appetite
	Make a fist			Vexation and do not
				feel thirsty
	Cold			Belching and lack of
	extremities			appetite
	Headache			Belching and lack of
				appetite
	Limb tremor			Abdominal
				distention and lack
				of appetite
	Twitching limbs			Poor digestive ability
	Frequent			Thirsty but do not
	headahce			want to drink
	Headache			Feel hungry but do
				not want to drink
	Swelling			Not thirsty
	headache
	Cracking			Lack of appetite
	headache
	Headache
	Drowsiness
	and fatigue
	Headache and
	blurry vision
	Abdominal pain
	Lumbago pain
	Headache and
	dizziness
	headache
	Long-term
	headache
	Lumbar and
	knees aching
	pain
	Hemiplegia
	Cold
	extremities
	Facial muscle
	convulsion
	Numbness of
	extremities
	Hemiplegia
	Fever and body
	contracture
	Joint pain
	Headache and
	dizziness
	Sore limbs
	Two hands
	Make a fist
	Body
	convulsion
	Cold
	extremities
	Fatigue in th
	body and limbs
	Cold
	extremities
	Headache
	Hongre head
	Oppression in
	the chest and
	hypochondria
	distention pain
	hypochondria
	distention pain
	Lumbar aching
	pain
	Lumbar aching
	pain and
	headache
	Fatigue in legs
	Fatigue
	Bone and joint
	aching pain
	Headache and
	body pain
	Cold
	extremitites
	Drowsiness
	and body ache
	Hypochodrium
	pain with
	distention
	Body and limbs
	swelling
	Body sore
	Body fat
	traumata
	Whole body
	edema
	Fatigue
	Whole body
	swell
	Cold
	extremities
	Lumbar aching
	pain
	Lumbar aching
	pain
	Lumbar and
	joint aching
	pain
	Lumbar and
	joint cold
	Sore limbs
	Lumbar aching
	pain
	Legs sore
	Dizziness
	Hypochondrium
	pain and limbs
	convulsion
	Exposed vein
	Cold
	extremitites
	Lie down a curl
	Lumbar and
	joint cold
	Anus burning
	pain
	Fatigue
	Dry skin
	Weight loss
	Anus burning
	pain

TABLE 1B
4 symptoms
Chest and abdominal	Sweat	Ear and eye	Cough
chest oppression	No sweat	Dizziness	Cough and coarse voice
want to vomit	Sweat		Coarse voice
stomach stuffiness	Little sweat	Dizziness	Rapid breathing
Dull and oppressive pain in	Night sweat	Tinnitus	Cough
the chest
Chest and hypochondrium	Easy sweat	Dizziness	Heavy and strong voice
pulling pain or stabbing
pain
Abdominal distention pain	Little night sweat	Dizziness and	Cough
		tinnitus
Chest pain and difficulty in	Sweating during	Reddish eyes	Rough voice and cough
breathing	sleep	and tinnitus
Oppressive pain the chest	A combination of	Dizziness	Cough
	spontaneous sweat
	and night sweat
Oppressive pain the chest	Spontaneous sweat	Dizziness and	Cough and coarse voice
		tinnitus
Dyspnea and cannot lay	Spontaneous sweat	Yellowish skin	Cough and rapid breathing
down	and do not want to	and facial
	speak	complexion
Chest and hypochondrium	Cold sweat	Reddish eyes	Cough
dull pain
Chest pain	Sweat and aversion	Sunken eyes	Noisy cough
	to wind
Hypochondrium distention	Spontaneous sweat	Sunken eyes	Dry cough
	or night sweat
Cardiff fullness	Sweat	Look up	Short cough
Cardiac chest pain	Sweat and cold	Mouth and eyes	Coarse voice
	limbs	suddenly on the
		side of the
		cheeks
Abdominal distention	Spontaneous sweat	Dizziness and	Cough in a low voice
	and cold skin	tinnitus
There is sound of water in	Profuse sweat	Close eyes	Rapid breathing
the abdominal/stomach
Water in the intestine	Profuse sweat	Reddish eyes	Cough and rapid breathing
Stomach distention	Rapid breathing	Yellowish skin	Loud wheezing
prefer warm food, aversion	and spontaneous	and eyes
to cold food	sweat
Chest pain		Blurry vision	Lung cough
Chest tightness and		Yellowish skin	Cough and rapid breathing
retching		and eyes
Stomach full		Swelling face and	Cough and fatigue
		eyes
Palpation		Dry ears	Rapid breathing
Cardiac chest pain from		Dizziness	Cough and rapid breathing
time to time
chest tightness and		Blurry vision	Cough and rapid breathing
irritability
Chest tightness and rapid		Reddish face	Little cough
breathing
Chest and abdominal			Reduced coughing
distention
stabbing pain in the chest			Cough
Chest pain or cramps			Wheezing and rapid
			breathing
Chest pain			Cough and rapid breathing
Chest tightness and chest			Rapid breathing
pain
Chest tightness and chest			Palpitation and wheezing
pain (dull)
Irritability and chest			Cough and wheezing
tightness, chest pain
Chest pain			Cough
Palpitation and chest pain
Chest tightness and
palpitation
Chest tightness
Vomit
Belch
Chest tightness and belch
Abdominal distention
Abdominal distention
Belch
Abdominal distention
Abdominal distention
Abdominal distention
Abdominal distention
Hot
Abdominal distention and
discomfort
Abdominal distention
Abdominal distention and
discomfort
Exposed veins
Abdominal distention
Chest tightness
Chest tightness
Abdominal distention and
chest tightness
Chest tightness and vomit
Chest tightness and
discomfort
Chest tightness and chest
pain
Chest tightness and
abdominal distention
Diarrhea
Hypochondrium and
abdominal distention
Abdominal distention
Lower abdominal distention
Lower abdominal pain
Lower abdominal distention
and pain
Lower abdominal distention
and pain
Chest tightness and pain
Gas coagulation in the
stomach
Abdominal distention
Abdominal pain
Sudden abdominal pain
Chronic abdominal pain
Abdominal or
hypochodrium distention
pain
Abdominal stabbing pain
Acute abdominal pain
Lower abdominal pain
Chest tightness and belch
Chest tightness,
abdominal distention
and belch
Abdominal distention
Abdominal pain
Abdominal distention and
pain
Abdominal pain
Abdominal pain before
passing stool
Chest tightness, abdominal
distention
Stomach burning pain
Abdominal pain
Abdominal distention and
discomfort
Chest tightness and pain
Chest tightness
Chest tightness

TABLE 1C
5 symptoms
Pain	Sleep	Facial complexion	Nose	Mouth and lip
Headache	Restless and insomia	Fever and reddish facial	Runny nose	Purplish lip
		complexion
Limbs sore	Nightmare	Cough and reddish facial	Sneezing	Purplish lip
		complexion
Distention pain in the	Sleepless with	Pale facial complexion	Sluffy nose and	Lip pale
head	nightmare	and aversion to wind	sticky nasal fluid
headache	Insomia	Reddish facial	Sneezing with	Purplish lip
		complexion and irritable	sticky nasal fluid
Limbs and body sore	Irritable and	Pale facial complexion	Dark reddish	Purplish lip
	sleeplessness		tongue
Chest and	Anxious, irritable and	Reddish facial	Nose and teeth	Pale lip
hypochondrium pain	sleeplessness	complexion	bleeding
Hypochondrium pain	Chest tightness,	Reddish facial	Rapid breathing	Dry mouth
	irritable, sleeplessness	complexion
Fever and back pain	Abdominal discomfort	Pale facial complexion	Weak breath	Open mouth
	and sleeplessness
Lumbar pain	Palpitation, irritable, and	Pale facial complexion	Dyspnes	Lip in dark
	sleeplessness			color
Pain	Nightmare and easily	Pale facial complexion	Stuffy nose	Lip pale
	waked up
Pain in the left	Nightmare and easily	Reddish facial	Stuffy nose	Mouth ulcer
shoulder and the left	scared	complexion
arm
Joint and muscle	Nightmare	Reddish facial		Dry mouth
pain		complexion
Pain in the entire	Palpitation and	Pale facial complexion		Dry mouth and
body, sometimes in	sleeplessness			taste bitter
the upper body,
sometimes in the
lower body
Fever and reduced	Irritability and insomnia	Greenish purple facial		Taste bitter
pain		complexion
Spinal and lumber	Sleeplessness	Redish facial		Pale lip
pain		complexion
Hypochondrium pain	Palpitation and	Reddish facial		Dry mouth and
and distention	insomnia	complexion		taste bitter
Hypochondrium and	Nightmare	Yellowish and pale facial		Dry mouth
abdominal stabbing		complexion
pain
Continous pain in	Insomnia and forgetful	Grey facial complexion		Dry mouth and
the neck and the				irritable
back
Severe pain in the	Lack of sleep	Yellowish and pale facial		Dry mouth
stomach and left		complexion
hypochondrium
Sever abdominal		Reddish facial		Dry mouth
cramps		complexion
Stabbing pain in the		Pale facial complexion
hypochrondium
Dull pain in the		Reddish facial
hypochrondium		complxion
Lower abdominal		Reddish facial
distention		complexion and fever
Chest distention and		Pale facial complexion
abdominal pain
Abdominal pain		Pale facial complexion
Sudden		Pale facial complexion
stomachache
Abdominal distention		Yellowish facial
and pain		complexion
Stabbing pain in the abdominal	Yellowish facial
		complexion
Burning pain in the		Grey facial complexion
abdominal
Burning pain in the		Bad grey facial
abdominal		complexion
Dull, burning pain in		Reddish facial
the abdominal		complexion
Dull pain in the		Pale facial complexion
abdominal
		Grey facial complexion
		and weight loss
		Yellowish and pale facial
		complexion
		Yellowish and pale facial
		complexion, lack of energy
		Pale facial complexion

TABLE 1D
5 symptoms
				Vaginal
Pharynx	Vomit	Spirit	menses	discharge
Itchy	Vomit and lack of	Fatigue	Irregular	Emission,
	appetite		menstruation	virginal
				discharge
Pain	Vomit	Fatigue	Amenorrhea,
			reduced
			mentrual
			flow
Swell	Vomit	Irritable	Amenorrhea
Sore throat	Chest tightness, vomit	Fatigue
Dry mouth	Nausea	Anxious
Dry mouth sore throut	Vomit	Irritable
Sputum in the chest/	Nausea	Irritable
throat
Difficulty in swallowing	Ptyalism	Lack of energy
Dry throat	Vomit	Palpitation
Loss of voice	Nausea	Palpitation,
		restless
Sore throat	Vomit	Palpitation,
		restless
	Ptyalism	Aggressive
	Vomit	Restless
	Vomit with sticky, white	Anxious
	fluid
	Vomit with reddish fluid	Fatigue
	Vomit	Anxious
	Vomit acidic liquid	Fatigue
	Vomit	Palpitation and
		short breathing
	Spit	Lack of spirit
	Vomit	Irritable
		Anxious and
		palpitation
		Palpitation and forgetfulness
		Fatigue and
		lack of appetite
		Forgetfulness
		and emission
		Anxious
		Fatigue
		Fatigue and
		aversion to
		cold
		Faint
		Dizziness and
		faint
		Faint
		Faint
		Faint
		Delirium
		Irritable
		Anxious
		Palpitation
		Restlessness
		Laying down
		peacefullly
		Anxious
		Depression
		Sigh
		Anxious
	Irritable
		Anxious
		Trance
		Sadness
		Restless, anxious
		Restless
		Fatigue
		Palpitation,
		timid
		Dizziness,
		palpitation
		Anxious
		Fatgue
		Lack of
		emotion
		Dementia of
		consciousness
		Trance
		Absent
		minded, lack of
		normal
		Sadness
		Speak wildly to
		close relatives
		Destroy property
		and hurt people
		Fatigue
		Agitated and
		weight loss
		Fatigue
		Delirium
		Palpitation and
		short breath
		Irritable and
		anxious
		Fatigue
		Timid
		Fatigue, sleepy
		Palpitation
		Irritable
		Fatigue
		Fatigue
		Fatigue,
		aversion to cold
		Fatigue
		Irritable, agitated

TABLE 1E
Symptoms identified based on 10 questions
Tongue                           Tongue surface/fur
Thin, white                      Thin, white
Thin white and dry               Thin white and dry
Thin, yellowish, reddish on the edge Thin, yellowish, reddish on the edge
Thin, yellowish and slimy fur    Thin, yellowish and slimy fur
Thin, yellow                     Slimy, white
Cool, dry, thin, white           Thin, yellow
Warm, dry, thin, yellow          Cool, dry, thin, white
White, slimy                     Warm, dry, thin, yellow
Thin, yellow, slimy, reddish tongue Thin, yellow, slimy, reddish tongue
Thin, yellow, insufficient fluid Thin, yellow, insufficient fluid
Reddish tongue                   White smooth
Pale                             Pale
Pale slimy                       Little fur, reddish fur
White, slippery                  Thin, yellowish fur
Reddish tognue                   Reddish and dry
Teeth scar on the tongue         Little fur
Dry mouth                        Thin fur
Fat Tongue                       Yellowish fur
Pale slippery or grey slimy      Smooth and purplish
Pale tongue, white fur           Little fluid
Pale tongue                      Thin, yellow fur
Dark, purplish tongue or with blood Yellow, slimy fur, reddish
masses
Yellow, slimy fur                Yellowish fur, reddish
Dark, purplish tongue or with blood Pale tongue, white fur
masses
White, slimy fur or white, slippery fur Pale tongue, smooth fur
Slimy fur                        Yellowish, slimy fur
Dark, purplish tongue or with blood White, slimy or white, smooth fur
masses
Pinkish tongue                   Slimy fur
Green or dark purple tongue      White, slimy fur, weak pulse
Dark tongue with blood masses    White fur
Mouth ulcer                      Slimy fur, floating pulse
Pink tip of the tongue           White, slimy fur
Pale tongue, weak pulse          Yellowish, dry fur, floating pulse
tongue with blood masses         Slimy fur
Pale tongue                      Reddish tongue, little fur
Pink tongue, little fur          Reddish tongue, yellowish, slimy
                                 fur, grey
                                 Thick slimy fur, floating pulse
Pink tongue, yellow slimy grayish fur Thin, white fur
Purplish tongue or with blood masses Yellowish fur, floating pusle
Pale, fat, purplish tongue       Thin, white fur
Reddish tongue                   White, Slimy fur
Reddish tongue                   Thin fur
Reddish tongue                   Yellowish, slimy fur
Pinkish tongue                   Little fur
White, Slimy fur                 Yellowish fur
Purplish tongue                  White, slimy fur
Pale tongue                      Yellowish, dry fur
Speech difficulty                Thin, yellow fur
White slimy fur                  White slimy or white smooth fur
Tongue atrophy                   White fur
Purplish tongue                  Pale fur
Yellowish, slimy fur             Little fur
Purple tongue                    Dry fur
Yellowish, slimy fur             Thine, slimy fur
Purplish tongue                  Yellowish fur, floating pulse
Pale tongue                      Thick, slimy fur
Pale, fat tongue                 White, slimy fur
Reddish tip of the tongue        Smooth fur
Pinkish tongue
Dark, purplish tongue or with blood
masses
Red tongue
Red tongue
Pale, fat tongue
Reddish or purplish tip of the tongue
Smooth tongue surface without fur
Light purplish tongue
Diarrhea, stool with white mucus and
blood masses
Diarrhea, stool with dark blood masses
Diarrhea, stool with white mucus
Diarrhea, stool with white mucus and
blood masses
Diarrhea with loose watery stool
Reddish, smooth tongue
Reddish tongue
Pinkish tongue
White, slimy fur

Claims

1. A computer-implemented method for representing an ontological information system for illness based on Chinese Traditional Medicine, the method comprising: generating, through a computer, ontological information comprising symptoms and associated illnesses in Chinese Traditional Medicine in annotated form, wherein the symptoms are categorized as major, minor, tongue surface and pulse according to Chinese Traditional Medicine;converting, via a semantic net of the computer, the ontological information into logic representations;providing a graphic system of queries regarding symptoms for receiving user input into the computer based on the ontological information;receiving user input symptoms in response to the queries;parsing illnesses in the ontological information associated with the user input symptoms;matching the user input symptoms with expected symptoms of parsed illnesses;assigning a weighted value to a user input symptom matched with an expected symptom of a parsed illness based on the symptom category, wherein if a matched user input symptom is of greater importance to the parsed illness, the matched user input symptom is assigned a higher weighted value, and if a matched user input symptom is of less importance to the parsed illness, the matched user input symptom is assigned a lower weighted value;calculating a relevance index by comparing the user input symptoms with the expected symptoms of parsed illnesses,each parsed illness that has a user input symptom matching an expected symptom of the respective parsed illness having an entry in the relevance index,each entry in the relevance index comprising a parsed illness and a numerical value being the number of user input symptoms that match the expected symptoms of the respective parsed illness;calculating a frequency index to evaluate the parsed illness and using the frequency index in calculating a modified relevance index, wherein the frequency index is calculated based on: determining a total number of user input symptoms that match the expected symptoms of a respective parsed illness;separating each user input symptom that matches an expected symptom of a respective parsed illness into a sub-category;assigning a weighted value to each sub-category;for each respective sub-category of a parsed illness, calculate a quotient by dividing the total number of matched user input symptoms with the number of user input symptoms in the sub-category, then calculate a product by multiplying the quotient by the respective weighted value for the sub-category, and then calculate a sum for each parsed illness by adding together each product for each sub-category of the parsed illness;providing a graphic index comprising a ranked column of parsed illnesses and an adjacent column comprising a relevance index value for each respective parsed illness, the ranked column of parsed illnesses being in ascending order of a parsed illness having a highest number of user input symptoms matching the expected symptoms of the respective parsed illness to a parsed illness having a lowest number of user input symptoms matching the expected symptoms of the respective parsed illness, the adjacent column providing the number of matched user input symptoms with the expected symptoms of each respective parsed illness;when the frequency index for the parsed illness falls below a threshold value, and when one or more unmatched user input symptom is in a major symptom category, adding to the ontological information a new disease descriptor having the matched user input symptoms and the one or more unmatched user input symptom in the major symptom category; andcommunicating to the user, illnesses in Chinese Traditional Medicine derived from the semantic net associated with the user input symptoms,wherein the semantic net is a document object model, andwherein the expected symptom is selected from: chills and fever; sweat; cough; sputum; pain; sleep disturbance; vomiting; vaginal discharge; and alterations in complexion, nose, lips, throat, pharynx or tongue.

2. The method of claim 1, wherein the annotated form of the ontological information is provided in Extensible Markup Language (XML).

3. The method of claim 1, wherein the ontological information is stored in a memory of the computer.

4. The method of claim 1, which is practiced in a network environment.

5. The method of claim 1, wherein the sub-categories comprise at least one of the following: major symptoms, minor symptoms, tongue surface symptoms, and pulse symptoms, wherein different weighted values are assigned to the matched user input symptoms in different categories.

6. The method of claim 1, further comprising evaluating an illness in Chinese Traditional Medicine parsed by the semantic net based on the frequency index of the parsed illness.

7. A computer program product, tangibly embodied in non-transitory computer-readable media, for representing an ontological information system for illness based on Chinese Traditional Medicine, the product comprising instructions to cause a computer to: generate ontological information regarding symptoms and associated illnesses in Chinese Traditional Medicine in annotated form, wherein the symptoms are categorized as major, minor, tongue surface and pulse according to Chinese Traditional Medicine;convert, via a semantic net, the ontological information into logic representations;provide a graphic system of queries regarding symptoms for receiving user input into the computer based on the ontological information;receive user input symptoms in response to the queries;parse illnesses in the ontological information associated with the user input symptoms;match the user input symptoms with expected symptoms of parsed illnesses;assign a weighted value to a user input symptom matched with an expected symptom of a parsed illness based on the symptom category, wherein if a matched user input symptom is of greater importance to the parsed illness, the matched user input symptom is assigned a higher weighted value, and if a matched user input symptom is of less importance to the parsed illness, the matched user input symptom is assigned a lower weighted value;calculating a relevance index by comparing the user input symptoms with the expected symptoms of parsed illnesses,each parsed illness that has a user input symptom matching an expected symptom of the respective parsed illness having an entry in the relevance index;each entry in the relevance index comprising a parsed illness and a numerical value being the number of user input symptoms that match the expected symptoms of the respective parsed illness;calculate a frequency index to evaluate the parsed illness and using the frequency index in calculating a modified relevance index, wherein the frequency index is calculated by: determining a total number of user input symptoms that match the expected symptoms of a respective parsed illness;separating each user input symptom that matches an expected symptom of a respective parsed illness into a sub-category;assigning a weighted value to each sub-category;for each respective sub-category of a parsed illness, calculate a quotient by dividing the total number of matched user input symptoms with the number of user input symptoms in the sub-category, then calculate a product by multiplying the quotient by the respective weighted value for the sub-category, and then calculate a sum for each parsed illness by adding together each product for each sub-category of the parsed illness;provide a graphic index comprising a ranked column of parsed illnesses and an adjacent column comprising a relevance index value for each respective parsed illness;the ranked column of parsed illnesses being in ascending order of a parsed illness having a highest number of user input symptoms matching the expected symptoms of the respective parsed illness to a parsed illness having a lowest number of user input symptoms matching the expected symptoms of the respective parsed illness;the adjacent column providing the number of matched user input symptoms with expected symptoms of each respective parsed illness;determine, when the frequency index for the parsed illness falls below a threshold value, whether one or more unmatched user input symptom is in a major symptom category;in response to determining that the one or more unmatched user input symptom is in the major symptom category, add to the ontological information a new disease descriptor having the matched user input symptoms and the one or more unmatched user input symptom in the major symptom category; andcommunicate to the user, illnesses in Chinese Traditional Medicine derived from the semantic net associated with the user input symptoms,wherein the semantic net is a document object model, andwherein the expected symptom is selected from: chills and fever; sweat; cough; sputum; pain; sleep disturbance; vomiting; vaginal discharge; and alterations in complexion, nose, lips, throat, pharynx or tongue.

8. The product of claim 7, wherein the annotated form of the ontological information is provided in Extensible Markup Language (XML).

9. The product of claim 7, wherein the sub-categories comprise at least one of the following: major symptoms, minor symptoms, tongue surface symptoms, and pulse symptoms, wherein different weighted values are assigned to the matched user input symptoms in different categories.

10. The product of claim 7, further comprising instructions to cause the computer to evaluate an illness in Chinese Traditional Medicine parsed by the semantic net based on the frequency index of the parsed illness.