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    AMW
    2010
    203views Knowledge Management» more  AMW 2010»
    Query Rewriting under Non-Guarded Rules
    13 years 10 months ago
    Query Rewriting under Non-Guarded Rules
    Download  sunsite.informatik.rwth-aachen.de
    We address the problem of answering conjunctive queries over knowledge bases, specified by sets of first-order sentences called tuple-generating dependencies (TGDs). This problem i...
    Andrea Calì, Georg Gottlob, Andreas Pieris
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    CLA
    2004
    174views Artificial Intelligence» more  CLA 2004»
    A Semi-automatic Method to Ontology Design by Using FCA
    13 years 10 months ago
    A Semi-automatic Method to Ontology Design by Using FCA
    Download  sunsite.informatik.rwth-aachen.de
    Ontology design is a complex and time-consuming process. It is extremely difficult for human experts to discover ontology from given data or texts. This paper presents a semi-autom...
    Hele-Mai Haav
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    DMDW
    2001
    91views Management» more  DMDW 2001»
    On Estimating the Cardinality of Aggregate Views
    13 years 10 months ago
    On Estimating the Cardinality of Aggregate Views
    Download  www-db.deis.unibo.it
    Accurately estimating the cardinality of aggregate views is crucial for logical and physical design of data warehouses. While the warehouse is under development and data are not a...
    Paolo Ciaccia, Matteo Golfarelli, Stefano Rizzi
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    CORR
    2006
    Springer
    86views Education» more  CORR 2006»
    Improving Precision of Type Analysis Using Non-Discriminative Union
    13 years 8 months ago
    Improving Precision of Type Analysis Using Non-Discriminative Union
    Download  www.secs.oakland.edu
    This paper presents a new type analysis for logic programs. The analysis is performed with a priori type definitions; and type expressions are formed from a fixed alphabet of type...
    Lunjin Lu
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    JCP
    2006
    91views more  JCP 2006»
    The Matching Predicate and a Filtering Scheme Based on Matroids
    13 years 8 months ago
    The Matching Predicate and a Filtering Scheme Based on Matroids
    Download  www.academypublisher.com
    Finding a maximum cardinality matching in a graph is a problem appearing in numerous settings. The problem asks for a set of edges of maximum cardinality, such that no two edges of...
    Dimitris Magos, Ioannis Mourtos, Leonidas S. Pitso...
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