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» Numerical constraints on XML data
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FROCOS
2007
Springer
14 years 1 months ago
Languages Modulo Normalization
Abstract. We propose a new class of tree automata, called tree automata with normalization (TAN). This framework extends equational tree automata, and improved the results of them:...
Hitoshi Ohsaki, Hiroyuki Seki
GLOBE
2009
Springer
14 years 1 days ago
Designing, Specifying and Querying Metadata for Virtual Data Integration Systems
Abstract. We show how to specify and use the metadata for a virtual and relational data integration system under the local-as-view (LAV) approach. We use XML and RuleML for represe...
Leopoldo E. Bertossi, Gayathri Jayaraman
ICDE
2007
IEEE
141views Database» more  ICDE 2007»
14 years 1 months ago
Self Managing Top-k (Summary, Keyword) Indexes in XML Retrieval
Retrieval queries that combine structural constraints with keyword search represent a significant challenge to XML data management systems. Queries are expected to be answered as...
Mariano P. Consens, Xin Gu, Yaron Kanza, Flavio Ri...
JCAM
2010
84views more  JCAM 2010»
13 years 2 months ago
An interior-point method for large constrained discrete ill-posed problems
Ill-posed problems are numerically underdetermined. It is therefore often beneficial to impose known properties of the desired solution, such as nonnegativity, during the solution...
Serena Morigi, Lothar Reichel, Fiorella Sgallari
VLDB
2002
ACM
118views Database» more  VLDB 2002»
13 years 7 months ago
Translating Web Data
We present a novel framework for mapping between any combination of XML and relational schemas, in which a high-level, userspecified mapping is translated into semantically meanin...
Lucian Popa, Yannis Velegrakis, Renée J. Mi...