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PODS
2012
ACM
253views Database» more  PODS 2012»
13 years 9 months ago
Local transformations and conjunctive-query equivalence
Over the past several decades, the study of conjunctive queries has occupied a central place in the theory and practice of database systems. In recent years, conjunctive queries h...
Ronald Fagin, Phokion G. Kolaitis
FQAS
2004
Springer
104views Database» more  FQAS 2004»
16 years 10 days ago
Logic-Based Integration of Query Answering and Knowledge Discovery
Abstract. There is currently great interest in integrating knowledge discovery research into mainstream database systems. Such an enterprise is nontrivial because knowledge discove...
Marcelo A. T. Aragão, Alvaro A. A. Fernande...
ICDE
2009
IEEE
179views Database» more  ICDE 2009»
16 years 8 months ago
Flexible Recommendations for Course Planning
Most recommendation methods are `hard-wired' into the system and they support only fixed recommendations. The purpose of this demo is to show the expressivity of flexible reco...
Georgia Koutrika, Benjamin Bercovitz, Robert Ikeda...
ICDE
2006
IEEE
179views Database» more  ICDE 2006»
16 years 8 months ago
ACXESS - Access Control for XML with Enhanced Security Specifications
We present ACXESS (Access Control for XML with Enhanced Security Specifications), a system for specifying and enforcing enhanced security constraints on XML via virtual "secu...
Sriram Mohan, Jonathan Klinginsmith, Arijit Sengup...
DNIS
2007
Springer
116views Database» more  DNIS 2007»
16 years 1 months ago
Sustainable Creation of Conversational Content Using Conversation Quantization
The purpose of this paper is to support the sustainable creation of conversation content. My approach is from the viewpoint of conversational records as materials for new conversat...
Hidekazu Kubota