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» A study of query length
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IEEEMSP
2002
IEEE
167views Multimedia» more  IEEEMSP 2002»
14 years 21 days ago
An experimental study on the performance of visual information retrieval similarity models
–This paper is an experimental study on the performance of the two major methods for macro-level similarity measurement: linear weighted merging and logical retrieval. Performanc...
Horst Eidenberger, Christian Breiteneder
ICDT
2009
ACM
119views Database» more  ICDT 2009»
14 years 8 months ago
Querying data sources that export infinite sets of views
We study the problem of querying data sources that accept only a limited set of queries, such as sources accessible by Web services which can implement very large (potentially inf...
Bogdan Cautis, Alin Deutsch, Nicola Onose
SEMWEB
2010
Springer
13 years 5 months ago
SPARQL Query Optimization on Top of DHTs
We study the problem of SPARQL query optimization on top of distributed hash tables. Existing works on SPARQL query processing in such environments have never been implemented in a...
Zoi Kaoudi, Kostis Kyzirakos, Manolis Koubarakis
DEXA
2001
Springer
101views Database» more  DEXA 2001»
14 years 8 days ago
A Popularity-Driven Caching Scheme for Meta-search Engines: An Empirical Study
Caching issues in meta-search engines are considered. We propose a popularity-driven cache algorithm that utilizes both popularities and reference counters of queries to determine ...
Sang Ho Lee, Jin Seon Hong, Larry Kerschberg
AMAI
2004
Springer
14 years 1 months ago
Learning via Finitely Many Queries
This work introduces a new query inference model that can access data and communicate with a teacher by asking finitely many boolean queries in a language L. In this model the pa...
Andrew C. Lee