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SIGMOD
2007
ACM
144views Database» more  SIGMOD 2007»
16 years 4 months ago
GhostDB: querying visible and hidden data without leaks
Imagine that you have been entrusted with private data, such as corporate product information, sensitive government information, or symptom and treatment information about hospita...
Nicolas Anciaux, Mehdi Benzine, Luc Bouganim, Phil...
CLEF
2005
Springer
15 years 9 months ago
CLEF 2005: Ad Hoc Track Overview
We describe the objectives and organization of the CLEF 2005 ad hoc track and discuss the main characteristics of the tasks offered to test monolingual, bilingual and multilingual ...
Giorgio Maria Di Nunzio, Nicola Ferro, Gareth J. F...
CIKM
2004
Springer
15 years 9 months ago
Providing consistent and exhaustive relevance assessments for XML retrieval evaluation
Comparing retrieval approaches requires test collections, which consist of documents, queries and relevance assessments. Obtaining consistent and exhaustive relevance assessments ...
Benjamin Piwowarski, Mounia Lalmas
CIKM
2009
Springer
15 years 8 months ago
Empirical justification of the gain and discount function for nDCG
The nDCG measure has proven to be a popular measure of retrieval effectiveness utilizing graded relevance judgments. However, a number of different instantiations of nDCG exist, d...
Evangelos Kanoulas, Javed A. Aslam
CLEF
2008
Springer
15 years 5 months ago
Robust Question Answering for Speech Transcripts: UPC Experience in QAst 2008
This paper describes the participation of the Technical University of Catalonia in the CLEF 2008 Question Answering on Speech Transcripts track. We have participated in the Englis...
Pere Comas, Jordi Turmo