Adaptive ranking system for information retrieval
June 14, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesQualifying and sorting file record data Method and means for interrogating a layered data base Method and means using digital data processing means for locating representations in a stored textual data base Text search system Computer information retrieval using latent semantic structure Method and apparatus to identify the relation of meaning between words in text expressions Method for searching a database system including parallel processors Patent #: 4870568 InventorsAssigneeApplicationNo. 574828 filed on 08/29/1990US Classes:707/5Query augmenting and refining (e.g., inexact access)ExaminersPrimary: Kriess, Kevin A.Attorney, Agent or FirmInternational ClassG06F 015/40AbstractAn adaptive record ranking method for full text information retrieval, which quantifies the relevance of retrieved records to query terms occurring in said record. The method utilizes a multilevel weighting technique which permits user input to affect record weighting at each level of the ranking process. The method utilizes weighted attributes of properties of terms occurring in the records of the data base and compensates for the distance between adjacent words of complex terms. The method has been implemented on large full text data bases and the resulting rankings achieve a relatively high level of precision in ranking the relevance of retrieved records to a user query.Other References
| |
