Qualifying 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
ApplicationNo. 574828 filed on 08/29/1990
US Classes:707/5Query augmenting and refining (e.g., inexact access)
ExaminersPrimary: Kriess, Kevin A.
Attorney, Agent or Firm
International ClassG06F 015/40
AbstractAn 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.