Schema Evolution publication categorizer

... over the target schema that satisfies the schema mapping. In general, a given source instance may have numerous different solutions. ...

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 relationships, called ...

Publication - cat - 04/17/2013 - 10:27 - 0 comments - 1 attachment

... Venue:  In Proceedings of VLDB, pages 598--609, 2002 ... Mapping and translating data stored in dierent formats continues to be an important problem in modern information ...

Publication - massmann - 04/17/2013 - 09:27 - 0 comments - 0 attachments

... Schema evolution poses serious challenges in historical data management. Traditionally the archival data has been (i) ... or (ii) maintained under the original schema version in which they firstly appeared, leading to a perfect archival quality, but to a ...

Publication - krlis1337 - 04/17/2013 - 07:27 - 0 comments - 0 attachments

... the challenge of managing the history of their databases in the face of intense database schema evolution . Our PRIMA system ... method for publishing the history of a relational database in XML, whereby the evolution of the schema and its underlying database are ...

Publication - krlis1337 - 04/17/2013 - 01:38 - 0 comments - 1 attachment

... A broad spectrum of data is available on the Web in distinct heterogeneous sources, and stored under different formats. ... and conversion mechanisms increases greatly. In this paper we present a new translation system, based on ...

Publication - admin - 04/16/2013 - 17:16 - 0 comments - 1 attachment

... are ample sources that provide structured information in the same domains (e.g., books and automobiles). Second, while sources ... demonstrate our approach over hundreds of real Web sources in four domains and the results show good accuracy. (Sigmod / VLDB, Web ...

Publication - admin - 04/16/2013 - 17:05 - 0 comments - 1 attachment

... sources through a single mediated schema. A key bottleneck in building such systems has been the laborious manual construction of semantic ... learner exploits a different type of information either in the source schemas or in their data. Once the learners have been trained, ...

Publication - admin - 04/16/2013 - 16:38 - 0 comments - 1 attachment

... applications we must solve the data mapping problem in which a source (legacy) database is mapped into a different, but fixed, ... We describe the use of the value correspondence framework in Clio, a prototype tool for semi-automated schema mapping, and present an ...

Publication - massmann - 04/16/2013 - 10:49 - 0 comments - 1 attachment

... problem. We present a novel approach to this problem, in which the relationship between the application data and the persistent ... is used to answer queries, while viewing the database in terms of the application model allows us to leverage view maintenance ... for update translation. This approach has been implemented in a commercial product. It enables developers to interact with a relational ...

Publication - huliganka - 04/16/2013 - 07:49 - 0 comments - 1 attachment

... over the interfaces; (c) they all perform the integration in a blackbox-like fashion and the whole process has to be restarted from ... and (d) they often require laborious parameter tuning. In this paper, we propose an interactive, clustering-based approach to matching ...

Publication - cat - 04/16/2013 - 06:16 - 0 comments - 1 attachment

... relationship between independent and complementary views In unrestricted domains, a view (but not the identity or empty view) can have ... A view is monotonic if it preserves inclusion However, in finite power sets when all views are monotonic, if a given view has another ...

Publication - huliganka - 04/16/2013 - 05:49 - 0 comments - 1 attachment

... or within enterprises—has received much attention in the database and AI communities. The focus has been on building data ... a uniform query interface to the sources. A key bottleneck in building such systems has been the laborious manual construction of semantic ...

Publication - huliganka - 04/16/2013 - 05:27 - 0 comments - 0 attachments

... us to a revised vision that differs from the original in two main respects: the operations must handle more expressive mappings, and ...

Publication - huliganka - 04/16/2013 - 03:16 - 0 comments - 1 attachment

... +Spicy integrates the computation 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

... between two database schemas. They are an important tool in several areas of database research, notably in data integration and data exchange. However, a concrete theory of schema ...

Publication - hartung - 04/16/2013 - 00:27 - 0 comments - 1 attachment

... between two ontologies, has played a key role in data exchange, data integration and metadata management. Among numerous ... the information over multiple domains, is not well studied in the community. In this paper, we propose a novel Gauss Function based ...

Publication - hartung - 04/15/2013 - 23:49 - 0 comments - 1 attachment

... of a general framework for metadata management. In fact, during the last years three alternative notions of inversion for ... practical applicability. First, these algorithms work in exponential time and produce inverse mappings of exponential size. Second, ...

Publication - hartung - 04/15/2013 - 23:38 - 0 comments - 1 attachment

... those methods. The AgreementMaker has been used and tested in practical applications and in the Ontology Alignment Evaluation Initiative (OAEI) competition. We report ...

Publication - hartung - 04/15/2013 - 23:27 - 0 comments - 1 attachment