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» Answering Queries using Humans, Algorithms and Databases
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TDM
2004
122views Database» more  TDM 2004»
15 years 3 months ago
Retrieval Using Structure for Question Answering
This paper examines the use of XML for modern extractionbased question answering (QA). We feel that the XML community has taken too narrow a view of structured retrieval, and that...
Paul Ogilvie
DEXA
2004
Springer
172views Database» more  DEXA 2004»
15 years 7 months ago
On the Automation of Similarity Information Maintenance in Flexible Query Answering Systems
This paper proposes a method for automatic maintaining the similarity information for a particular class of Flexible Query Answering Systems (FQAS). The paper describes the three m...
Balázs Csanád Csáji, Josef K&...
VLDB
2007
ACM
155views Database» more  VLDB 2007»
16 years 2 months ago
Answering Aggregation Queries in a Secure System Model
As more sensitive data is captured in electronic form, security becomes more and more important. Data encryption is the main technique for achieving security. While in the past en...
Tingjian Ge, Stanley B. Zdonik
SIGMOD
2002
ACM
198views Database» more  SIGMOD 2002»
16 years 1 months ago
Processing complex aggregate queries over data streams
Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) with only...
Alin Dobra, Minos N. Garofalakis, Johannes Gehrke,...
109
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PODS
2006
ACM
121views Database» more  PODS 2006»
16 years 1 months ago
On the efficiency of checking perfect privacy
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
Ashwin Machanavajjhala, Johannes Gehrke