Patent · US Active

Query generation and time difference features for supervised semantic indexing

US9336495B2 · kind B2 · utility

2Cited by

1References

9Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Bing Bai · Princeton Junction, US
Christopher Malon · Fort Lee, US
Iain Melvin · Hopewell, US

Key dates

Filing date	Oct 28, 2013
Grant date	May 10, 2016
Priority date	—
Expiry date	Jul 27, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/951
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Semantic indexing methods and systems are disclosed. One such method is directed to training a semantic indexing model by employing an expanded query. The query can be expanded by merging the query with documents that are relevant to the query for purposes of compensating for a lack of training data. In accordance with another exemplary aspect, time difference features can be incorporated into a semantic indexing model to account for changes in query distributions over time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.