641 search results - page 59 / 129 » Studying Query Expansion Effectiveness |
PODS
2004
ACM
14 years 9 months ago
2004
ACM
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
EJASMP
2010
13 years 3 months ago
2010
Spoken utterance retrieval was largely studied in the last decades, with the purpose of indexing large audio databases or of detecting keywords in continuous speech streams. While...
QI
2009
Springer
14 years 3 months ago
2009
Springer
An emerging topic in Quantuam Interaction is the use of lexical semantic spaces, as Hilbert spaces, to capture the meaning of words. There has been some initial evidence that the p...
ECIR
2006
Springer
13 years 10 months ago
2006
Springer
Genomic IR, characterized by its highly specific information need, severe synonym and polysemy problem, long term name and rapid growing literature size, is challenging IR communit...