Systems and methods for indexing content for fast and scalable retrieval
US7849063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2004 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Sep 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/334
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for query processing and indexing of documents in connection with a content store in a computing system are provided. In various embodiments, an indexing model is provided that is optimized for fast, efficient and scalable retrieval of documents satisfying a query, including the mixed use of forward and inverted indexing representations, including algorithms for achieving a balance between the two representations. When processing queries, fast and efficient generation of reverse chronologically ordered posting lists is enabled for efficient execution of logical operators on query result sets. A term expand index is also provided wherein the overall terms included in the term expand index are decomposed into a plurality of lexicon files, which are combined when convenient for fast, scalable efficiency when performing queries of the content in the content store.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.