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ICDT
2010
ACM
194views Database» more  ICDT 2010»
15 years 8 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
EOR
2008
95views more  EOR 2008»
15 years 6 months ago
Enabling e-transactions with multi-attribute preference models
This paper describes potential applications of multi-attribute preference models (MAPM) in e-commerce and offers some guidelines for their implementation. MAPM are methodologies f...
John C. Butler, James S. Dyer, Jianmin Jia, Kerem ...
APIN
2002
70views more  APIN 2002»
15 years 6 months ago
Compact Unstructured Representations for Evolutionary Design
This paper proposes a few steps to escape structured extensive representations for objects, in the context of evolutionary Topological Optimum Design (TOD) problems: early results ...
Hatem Hamda, François Jouve, Evelyne Lutton...
ICDT
2012
ACM
226views Database» more  ICDT 2012»
13 years 9 months ago
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
Dan Olteanu, Jakub Zavodny
DOCENG
2004
ACM
15 years 12 months ago
Presenting the results of relevance-oriented search over XML documents
In this paper, we discuss how to present the result of searching elements of any type from XML documents relevant to some information need (relevance-oriented search). As the resu...
Alda Lopes Gançarski, Pedro Rangel Henrique...