641 search results - page 20 / 129 » Studying Query Expansion Effectiveness |
SIGIR
2010
ACM
13 years 7 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...
KDD
2000
ACM
13 years 11 months ago
2000
ACM
To improve the accuracy in terms of precision and recall of an audio information retrieval system we have created a domainspecific ontology (a collection of key concepts and their...
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...
SIGIR
2000
ACM
13 years 11 months ago
2000
ACM
The effects of out-of-vocabulary (OOV) items in spoken document retrieval (SDR) are investigated. Several sets of transcriptions were created for the TREC-8 SDR task using a speec...
WCE
2007
13 years 8 months ago
2007
—This study comprises finite element simulations and experimental studies of the shape memory effect due to the presence of SMA (shape memory alloy) wires in composite materials....