Method and system for efficiently searching an encoded vector index
AssigneeInternational Business Machines Corporation
InventorsThuan Quang Bui, Randy Lynn Egan, Kevin James Kathmann
Life of this patent
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Abstract
Method and system aspects for efficiently searching an encoded vector index are provided. The aspects include the translation of a search query into a candidate bitmap, and the mapping of data from the candidate bitmap into a search result bitmap according to entry values in the encoded vector index. Further, the translation includes the setting of a bit in the candidate bitmap for each entry in a symbol table that corresponds to candidate of the search query. Also included in the mapping is the identification of a bit value in the candidate bitmap pointed to by an entry in an encoded vector.
Claims23
A method for efficiently searching an encoded vector index, the method comprising:
- translating a search query into a candidate bitmap;
- and
- mapping data from the candidate bitmap into a search result bitmap according to entry values in the encoded vector index.
A system for improving encoded vector index searching, the system comprising:
- at least one computer processor;
- and
- at least one data storage device coupled to the at least one computer processor for storing one or more relational databases that utilize encoded vector indexing and for storing relational database managerial processing instructions, including search query instructions, wherein the at least one computer processor processes the search query instructions by translating a search query into a candidate bitmap, and mapping data from the candidate bitmap into a search result bitmap according to entry values in an encoded vector index.
A method to improve encoded vector index searching, the method comprising:
- generating a candidate bitmap for a search query;
- identifying a bit value from the candidate bitmap corresponding to each entry in an encoded vector;
- and
- generating a temporary bitmap from the identified bit values as a search result for the search query.
A computer readable medium containing program instructions for efficiently searching an encoded vector index comprising:
- translating a search query into a candidate bitmap;
- and
- mapping data from the candidate bitmap into a search result bitmap according to entry values in the encoded vector index.
Dependencies are inferred from the claim text.