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PODS
2009
ACM
130views Database» more  PODS 2009»
14 years 10 months ago
Secondary indexing in one dimension: beyond b-trees and bitmap indexes
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
Rasmus Pagh, Srinivasa Rao Satti
LREC
2008
115views Education» more  LREC 2008»
13 years 11 months ago
Evaluating Robustness Of A QA System Through A Corpus Of Real-Life Questions
This paper presents the sequential evaluation of the question answering system SQuaLIA. This system is based on the same sequential process as most statistical question answering ...
Laurianne Sitbon, Patrice Bellot, Philippe Blache
CLEF
2009
Springer
13 years 11 months ago
Where in the Wikipedia Is That Answer? The XLDB at the GikiCLEF 2009 Task
GikiCLEF focused on the evaluation of the reasoning capabilities of systems to provide right answers for geographically-challenging topics. As we did not have previous experience ...
Nuno Cardoso, David Batista, Francisco J. Ló...
SSDBM
2008
IEEE
90views Database» more  SSDBM 2008»
14 years 4 months ago
Ontology Database: A New Method for Semantic Modeling and an Application to Brainwave Data
We propose an automatic method for modeling a relational database that uses SQL triggers and foreign-keys to efficiently answer positive semantic queries about ground instances for...
Paea LePendu, Dejing Dou, Gwen A. Frishkoff, Jiawe...
ICPP
2007
IEEE
14 years 4 months ago
Difficulty-aware Hybrid Search in Peer-to-Peer Networks
—By combining an unstructured protocol with a DHT-based global index, hybrid peer-to-peer (P2P) improves search efficiency in terms of query recall and response time. The major c...
Hanhua Chen, Hai Jin, Yunhao Liu, Lionel M. Ni