714 search results - page 44 / 143 » Conceptual Query Expansion |
VISUAL
1999
Springer
14 years 2 months ago
1999
Springer
Abstract. Unlike traditional database management systems, in multimedia databases that support content-based retrieval over multimedia objects, it is difficult for users to express...
TREC
2004
13 years 11 months ago
2004
Web search engines exploit conjunctive queries and special ranking criteria which differ from the disjunctive queries typically used for ad-hoc retrieval. We wanted to asses the e...
AAAI
2008
14 years 12 days ago
2008
A seed-based framework for textual information extraction allows for weakly supervised acquisition of open-domain class attributes over conceptual hierarchies, from a combination ...
SIGIR
2010
ACM
13 years 10 months ago
2010
ACM
Query reformulation techniques based on query logs have recently proven to be effective for web queries. However, when initial queries have reasonably good quality, these techniqu...
IPM
2007
13 years 10 months ago
2007
In recent years, there has been increased interest in topic-focused multi-document summarization. In this task, automatic summaries are produced in response to a specific informat...