641 search results - page 64 / 129 » Studying Query Expansion Effectiveness |
DEXA
2007
Springer
14 years 3 months ago
2007
Springer
The semantic web is based on ontologies and metadata that indexes resources using ontologies. This indexing is called annotation. Ontology based information retrieval is an operati...
ECIR
2007
Springer
13 years 10 months ago
2007
Springer
This paper presents a series of analyses and experiments on spoken document retrieval systems: search engines that retrieve transcripts produced by speech recognizers. Results show...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
This work addresses a novel spatial keyword query called the m-closest keywords (mCK) query. Given a database of spatial objects, each tuple is associated with some descriptive inf...
ECIR
2010
Springer
13 years 10 months ago
2010
Springer
Abstract. Learning To Rank (LTR) techniques aim to learn an effective document ranking function by combining several document features. While the function learned may be uniformly ...
ICDAR
2003
IEEE
14 years 2 months ago
2003
IEEE
Recognition of variously deformed character patterns is a salient subject for off-line hand-printed character recognition. Sufficient recognition performance for practical use has...