Number | Name | Date | Kind |
---|---|---|---|
4868733 | Fujisawa et al. | Sep 1989 | |
4870576 | Tornetta | Sep 1989 | |
4939689 | Davis et al. | Jul 1990 | |
5167011 | Priest | Nov 1992 | |
5168533 | Kato et al. | Dec 1992 | |
5175814 | Anick et al. | Dec 1992 | |
5206949 | Cochran et al. | Apr 1993 | |
5237678 | Kuechler et al. | Aug 1993 | |
5241671 | Reed et al. | Aug 1993 | |
5251294 | Abelow | Oct 1993 | |
5265065 | Turtle | Nov 1993 | |
5278980 | Pedersen et al. | Jan 1994 | |
5388196 | Pajak et al. | Feb 1995 | |
5418948 | Turtle | May 1995 | |
5428778 | Brookes | Jun 1995 | |
5442778 | Pedersen et al. | Aug 1995 | |
5515488 | Hoppe et al. | May 1996 | |
5630121 | Braden-Harder et al. | May 1997 | |
5630125 | Zellweger | May 1997 |
Entry |
---|
Salton, G. et al., "Automatic Query Formulations in Information Retrieval," Journal of the American Society for Information Science, v. 34, n. 4, Jul. 1983, pp. 262-280. |