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ICDT
2007
ACM
143views Database» more  ICDT 2007»
10 years 9 hour ago
Hierarchical Summarizing and Evaluating for Web Pages
In this investigation we propose a novel summarization method of Web pages using hierarchical expression. We discuss close relationship between summarization and hierarchical clust...
Kou Takahashi, Takao Miura, Isamu Shioya
ICDT
2007
ACM
118views Database» more  ICDT 2007»
10 years 9 hour ago
Approximate Data Exchange
Abstract. We introduce approximate data exchange, by relaxing classical data exchange problems such as Consistency and Typechecking to their approximate versions based on Property ...
Michel de Rougemont, Adrien Vieilleribière
ICDT
2007
ACM
105views Database» more  ICDT 2007»
10 years 9 hour ago
Unlocking Keys for XML Trees
Abstract. We review key constraints in the context of XML as introduced by Buneman et al. We show that one of the proposed inference rules is not sound in general, and the axiomati...
Sven Hartmann, Sebastian Link
ICDT
2007
ACM
74views Database» more  ICDT 2007»
10 years 9 hour ago
World-Set Decompositions: Expressiveness and Efficient Algorithms
Uncertain information is commonplace in real-world data management scenarios. The ability to represent large sets of possible instances (worlds) while supporting efficient storage ...
Lyublena Antova, Christoph Koch, Dan Olteanu
ICDT
2007
ACM
107views Database» more  ICDT 2007»
10 years 2 months ago
Updating Views Over Recursive XML
Ming Jiang 0003, Ling Wang, Murali Mani, Elke A. R...
ICDT
2007
ACM
120views Database» more  ICDT 2007»
10 years 2 months ago
Scalable Query Dissemination in XPeer
Abstract. This paper presents XPeer, a data sharing system for massively distributed XML data. XPeer allows users to publish and query heterogeneous information without any signiļ¬...
Giovanni Conforti, Giorgio Ghelli, Paolo Manghi, C...
ICDT
2007
ACM
136views Database» more  ICDT 2007»
10 years 2 months ago
Representing Data as Resources in RDF and OWL
This paper presents an RDF vocabulary for representing data values as resources. An intended application is the representation of relational databases in RDF, and reasoning with th...
Pierre-Antoine Champin
ICDT
2007
ACM
133views Database» more  ICDT 2007»
10 years 2 months ago
XML Schema Mappings in the Presence of Key Constraints and Value Dependencies
Abstract. Schema mappings play a central role in both data integration and data exchange, and are understood as high-level speciļ¬cations describing the relationships between data...
Tadeusz Pankowski, Jolanta Cybulka, Adam Meissner
ICDT
2007
ACM
105views Database» more  ICDT 2007»
10 years 2 months ago
Optimization of Query Plans in the presence of Access Limitations
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
Andrea Calì, Diego Calvanese, Davide Martin...
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