Document and information retrieval method and apparatus
First Claim
1. A method of retrieving a desired document item or information item from a plurality of document items and/or information items, items being identified by item index vectors, the method being performed in response to a query including plural query terms, the query terms being related to each other in Boolean logic form, the method comprising transforming the query terms in Boolean logic form into a transformed vector form, and retrieving the desired item information in response to similarity measurements of the transformed vector form of the query terms and the item index vectors.
3 Assignments
0 Petitions
Accused Products
Abstract
A data procassing unit in programmed to retrieve a document item and/or an information item from a plurality of document items and/or information items. Each of the items is identified by an index vector. The retrieval (15) is in response to a query (11) including plural query terms related to each other by Boolean logic. The program causes the data processing unit to transform the query into vector form through matrix calculations (12) and to measure the similarities of the item index vectors and the vector form of the query to determine which of the items correspond with the query.
-
Citations
17 Claims
- 1. A method of retrieving a desired document item or information item from a plurality of document items and/or information items, items being identified by item index vectors, the method being performed in response to a query including plural query terms, the query terms being related to each other in Boolean logic form, the method comprising transforming the query terms in Boolean logic form into a transformed vector form, and retrieving the desired item information in response to similarity measurements of the transformed vector form of the query terms and the item index vectors.
-
12. Apparatus for retrieving a document item and/or information item from a plurality of document items and/or information items, each of the items being identified by an item index vector, the apparatus, comprising:
-
(a) an input unit for accepting a query including plural query terms related to each other by Boolean logic;
(b) a data processing unit connected to be responsive to the input unit, the data processing unit being programmed to be responsive to the query for transforming the query into vector form, and for measuring the similarities of the item index vectors and the vector form of the query to determine which of the times correspond with the query, and an output device connected to be responsive to the data processing unit for providing an indication of the determination of which of the items correspond with the query. - View Dependent Claims (13, 14)
-
- 15. A program for controlling a data processing unit used to assist in retrieving a document item and/or an information item from a plurality of document items and/or information items, each of the items being identified by an item index vector, the retrieval being in response to a query including plural query terms related to each other by Boolean logic, the program being arranged for causing the data processing unit to transform the query into vector form and to measure the similarities of the item index vectors and the vector form of the query to determine which of the items correspond with the query.
Specification