... 234.28 KB A schema mapping is a declarative specification of the relationship between instances of a source schema and a target schema. The data exchange (or data translation) ...
Publication - hartung - 04/17/2013 - 12:16 - 0 comments - 1 attachment
... 213.88 KB A fundamental problem in information integration is to precisely specify the ... called mappings, between schemas. Designing mappings is a time-consuming process. To alleviate this problem, many mapping systems have been developed to assist the design of mappings. However, a benchmark for comparing and evaluating these systems has not yet been ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 1 attachment
... problem in modern information systems. We present a novel framework for mapping among XML and relational schemas in which a high-level mapping is translated into semantically meaningful queries that ... Our approach works in two phases. In the rst phase, a high-level mapping, expressed as a set of attribute-to-attribute ...
Publication - massmann - 04/17/2013 - 09:27 - 0 comments - 0 attachments
... Moon, Hyun J.; Curino, Carlo A.; MyungWon, Ham; Zaniolo, Carlo ... schema version in which they firstly appeared, leading to a perfect archival quality, but to a taxing query interface. The PRIMA ...
Publication - krlis1337 - 04/17/2013 - 07:27 - 0 comments - 0 attachments
... Nandi, A; Bernstein, P Author: Nandi, A Bernstein, P ...
Publication - hartung - 04/17/2013 - 07:16 - 0 comments - 1 attachment
... Moon, Hyun J.; Curino, Carlo A.; Deutsch, Alin; Hou, Chien-Yi; Zaniolo, Carlo ... C Deutsch, A Hou, C ...
Publication - krlis1337 - 04/17/2013 - 01:38 - 0 comments - 1 attachment
... Milo1998UsingSchemaMatchingto.pdf 272 KB A broad spectrum of data is available on the Web in distinct ... increases greatly. In this paper we present a new translation system, based on schema-matching, aimed at simplifying ...
Publication - admin - 04/16/2013 - 17:16 - 0 comments - 1 attachment
... 235.9 KB Schema matching is a critical problem for integrating heterogeneous information sources. ... pairwise-attribute correspondence. This paper proposes a different approach, motivated by integrating large numbers of data sources on ... we observe two distinguishing characteristics that offer a new view for considering schema matching: First, as the Web scales, there are ...
Publication - admin - 04/16/2013 - 17:05 - 0 comments - 1 attachment
... Doan, A.; Domingos, P.; Halevy, A. Author: ...
Publication - admin - 04/16/2013 - 16:38 - 0 comments - 1 attachment
... we must solve the data mapping problem in which a source (legacy) database is mapped into a different, but fixed, target schema. Schema mapping involves the discovery of ...
Publication - massmann - 04/16/2013 - 10:49 - 0 comments - 1 attachment
... problem of quickly and accurately transforming data into a new form. Database researchers have long advocated the use of declarative ... to permit widespread adoption of this approach. We present a new framework that uses data examples as the basis for understanding and ...
Publication - massmann - 04/16/2013 - 10:27 - 0 comments - 1 attachment
... Melnik, S.; Adya, A.; Bernstein, P.A. Author: ...
Publication - huliganka - 04/16/2013 - 07:49 - 0 comments - 1 attachment
... 0 Citations range: n/a Attachment Size ... contents are only accessible through query interfaces. For a domain of interest, there often exist many such sources with varied coverage ...
Publication - cat - 04/16/2013 - 06:16 - 0 comments - 1 attachment
... Keller, A.M.; Ullman, J.D. Author: Keller, A Ullman, J ...
Publication - huliganka - 04/16/2013 - 05:49 - 0 comments - 1 attachment
... Doan, A.; Domingos, P.; Halevy, A. Author: ...
Publication - huliganka - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... Bernstein, P.A.; Melnik, S. Author: ... 543.02 KB Model management is a generic approach to solving problems of data programmability where precisely ...
Publication - huliganka - 04/16/2013 - 03:16 - 0 comments - 1 attachment
... range: n/a Attachment Size ... the +Spicy mapping system. The system is based on a number of novel algorithms that contribute to increase the quality and ... of core solutions in the mapping generation process in a highly efficient way, based on a natural rewriting of the given mappings. ...
Publication - hartung - 04/16/2013 - 00:27 - 0 comments - 1 attachment
... notably in data integration and data exchange. However, a concrete theory of schema mapping optimization including the formulation of ... of this work is to fill this gap. We start by presenting a system of rewrite rules to minimize sets of source-to-target tuple-generating ...
Publication - hartung - 04/16/2013 - 00:27 - 0 comments - 1 attachment
... correspondences between two ontologies, has played a key role in data exchange, data integration and metadata management. Among ... to find the matches between an ontology describing a local domain knowledge and another ontology covering the information over ...
Publication - hartung - 04/15/2013 - 23:49 - 0 comments - 1 attachment
... as one of the fundamental operators for the development of a general framework for metadata management. In fact, during the last years ... include features that are difficult to use in practice. A typical example is the use of disjunction in the conclusion of the mapping ...
Publication - hartung - 04/15/2013 - 23:38 - 0 comments - 1 attachment
... the design and implementation of the system: they require a responsive, powerful, and extensible framework to perform, evaluate, and compare matching methods. The system comprises a wide range of matching methods addressing di erent levels of granularity of ...
Publication - hartung - 04/15/2013 - 23:27 - 0 comments - 1 attachment
