US Patent No: 6,505,198
Number of patents in Portfolio can not be more than 2000
Sort system for text retrieval
Stats
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Jan 7, 2003
Issued date -
Aug 21, 2001
filing date -
09/933,937
serial no -
Expired
status
Importance
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Abstract
The present invention is a method for operating a computer system to retrieve information from a computer database. This method decomposes documents from the database into subdocuments and then inverts the database. Also, a query for retrieving documents from a database is decomposed into terms. The subdocuments from the inverted database and the terms from the query are then used to compute a score that indicates a quantitative relation between terms in the query and the subdocuments. The resulting list of the subdocuments and their scores is then reorganized into a heap form. The highest ranking subdocument is then selected by the computer and the text associated with this subdocument is displayed. The remainder of the subdocument score list is concurrently reheapified.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,907,840 Overlapping subdocuments in a vector space search process | 22 | 1997 | |
| 5,926,808 Displaying portions of text from multiple documents over multiple databases related to a search query in a computer network | 52 | 1997 | |
| 5,953,728 System for modifying a database using a transaction log | 6 | 1997 | |
| 5,995,962 Sort system for merging database entries | 6 | 1997 | |
| 6,138,114 Sort system for merging database entries | 6 | 1999 | |
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| 4,531,186 User friendly data base access | 49 | 1983 | |
| 5,043,872 Access path optimization using degrees of clustering | 63 | 1988 | |
| 5,099,426 Method for use of morphological information to cross reference keywords used for information retrieval | 61 | 1989 | |
| 5,787,001 Method for using sorting techniques in a type-safe way | 8 | 1995 | |
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| 5,519,608 Method for extracting from a text corpus answers to questions stated in natural language by using linguistic analysis and hypothesis generation | 145 | 1993 | |
| 5,696,962 Method for computerized information retrieval using shallow linguistic analysis | 225 | 1996 | |
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| 5,715,443 Method and apparatus for searching for information in a data processing system and for providing scheduled search reports in a summary format | 69 | 1994 | |
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| 5,819,273 Method and apparatus for searching for information in a network and for controlling the display of searchable information on display devices in the network | 160 | 1997 | |
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| 5,459,861 Evaluation support method for retrieved data | 10 | 1993 | |
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| 5,206,949 Database search and record retrieval system which continuously displays category names during scrolling and selection of individually displayed search terms | 113 | 1989 | |
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| 5,519,857 Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus | 41 | 1992 | |
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| 5,369,577 Text searching system | 83 | 1991 | |
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| 4,868,733 Document filing system with knowledge-base network of concept interconnected by generic, subsumption, and superclass relations | 98 | 1986 | |
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| 5,202,840 Method for partitioning of connected circuit components before placement in one or more integrated circuits | 49 | 1990 | |
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| 5,465,353 Image matching and retrieval by multi-access redundant hashing | 209 | 1994 | |
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| 5,375,235 Method of indexing keywords for searching in a database recorded on an information recording medium | 92 | 1991 | |
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| 5,745,891 Apparatus for rearranging the rows of information in a displayed table by highlighting a different column attribute | 14 | 1996 | |
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| 5,576,954 Process for determination of text relevancy | 91 | 1993 | |
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| 5,619,718 Associative memory processing method for natural language parsing and pattern recognition | 20 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 7, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |