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TREC
2004
13 years 10 months ago
2004
In the domain of biomedical publications, synonyms and homonyms are omnipresent and pose a great challenge for document retrieval systems. For this year's TREC Genomics Ad ho...
TREC
2007
13 years 10 months ago
2007
In TREC Genomics a question/answering task has been proposed. A set of questions with a specific entity of interest is proposed and a set of passages from a collection of full te...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
There has been a significant amount of excitement and recent work on column-oriented database systems ("column-stores"). These database systems have been shown to perfor...
IPMU
2010
Springer
13 years 7 months ago
2010
Springer
Controlled Query Evaluation (CQE) is a logical framework for the protection of secrets in databases. In this article, we extend the CQE framework to possibilistic logic: knowledge ...
ADBIS
2010
Springer
13 years 7 months ago
2010
Springer
Abstract. The natural and surrogate key architectures are two competing approaches to specifying keys in relational databases. We analyze the performance of these approaches with r...