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CLEF
2010
Springer
15 years 8 months ago
Validating Query Simulators: An Experiment Using Commercial Searches and Purchases
Abstract. We design and validate simulators for generating queries and relevance judgments for retrieval system evaluation. We develop a simulation framework that incorporates exis...
Bouke Huurnink, Katja Hofmann, Maarten de Rijke, M...
CC
2006
Springer
125views System Software» more  CC 2006»
15 years 7 months ago
A tight lower bound for restricted pir protocols
We show that any 1-round 2-server Private Information Retrieval Protocol where the answers are 1-bit long must ask questions that are at least n - 2 bits long, which is nearly equa...
Richard Beigel, Lance Fortnow, William I. Gasarch
SIGIR
2008
ACM
15 years 6 months ago
Emulating query-biased summaries using document titles
Generating query-biased summaries can take up a large part of the response time of interactive information retrieval (IIR) systems. This paper proposes to use document titles as a...
Hideo Joho, David Hannah, Joemon M. Jose
JODL
2000
123views more  JODL 2000»
15 years 6 months ago
On Z39.50 wrapping and description logics
Z39.50 is a client/server protocol widely used in digital libraries and museums for searching and retrieving information spread over a number of heterogeneous sources. To overcome ...
Yannis Velegrakis, Vassilis Christophides, Panos C...
193
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SIGIR
2005
ACM
16 years 13 days ago
A database centric view of semantic image annotation and retrieval
We introduce a new model for semantic annotation and retrieval from image databases. The new model is based on a probabilistic formulation that poses annotation and retrieval as c...
Gustavo Carneiro, Nuno Vasconcelos