Schema Evolution publication categorizer

... that it does not contain semantic inconsistencies. In this paper,we describe the ASMOV algorithm, and then present experimental ...

Publication - cat - 04/17/2013 - 03:49 - 0 comments - 1 attachment

... 666.47 KB Many problems in information integration rely on specifications, called schema mappings, that ... for both relational and nested data are well-known. In this work, we present a new formalism for schema mapping that extends these existing formalisms in two significant ways. First, our nested mappings allow for nesting and ...

Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment

... between database schemas. Schema mappings are prominent in several different areas of database management, including database design, ... and peer-to-peer data management systems. Our main aim in this paper is to present an overview of recent advances in data exchange and ...

Publication - cat - 04/16/2013 - 21:27 - 0 comments - 1 attachment

... 225.15 KB In a Web database that dynamically provides information in response to user queries, two distinct schemas, interface schema (the schema ... matching across query interfaces of Web databases. In this paper, we propose a novel schema model that distinguishes the ...

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

... can be used to determine whether a mapping is adequate in a particular context. Finally, we consider an instance of our framework ...

Publication - admin - 04/16/2013 - 15:16 - 0 comments - 1 attachment

... for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is ... depending on the kind of schemas and systems involved in the mapping. Clio currently produces XQuery, XSLT, SQL, and SQL/XML queries. ...

Publication - admin - 04/16/2013 - 13:38 - 0 comments - 1 attachment

... is the problem of identifying corresponding elements in different schemas. Discovering these correspondences or matches is ... rather poorly due to the lack ofsufficient evidence in the schemas being matched. In this paper we show how a corpus of schemas and mappings can be used to ...

Publication - admin - 04/16/2013 - 13:38 - 0 comments - 1 attachment

... to translate data from one representation to another. In dynamic environments like the Web, data sources may change not only ... query capabilities. Such changes must be reflected in the mappings. Mappings left inconsistent by a schema change have to be ...

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

... power and versatility of modern schema languages, in particular user-defined types and classes, component reuse capabilities, and ... schemas and namespaces. To better assist the user in matching complex schemas, we have developed a new generic Schema matching ...

Publication - massmann - 04/16/2013 - 10:38 - 0 comments - 1 attachment

... Schemas evolve over time to accommodate the changes in the information they represent. Such evolution causes invalidation of ... depending on the schemas, such as schema mappings. In a heterogenous environment, where cooperation among data sources depends ...

Publication - cat - 04/16/2013 - 09:16 - 0 comments - 1 attachment

... the approach, we show how to use model management in two scenarios related to loading data warehouses. The case study illustrates ...

Publication - cat - 04/16/2013 - 03:05 - 0 comments - 1 attachment

... complete prototype of a generic modelmanagement system, in which high-level operators are used to manipulate models and mappings ...

Publication - cat - 04/16/2013 - 03:05 - 0 comments - 1 attachment

... Many uses of models involve managing changes in models and transformations of data from one model into another. These uses ... their use. We call this capability model management. In addition to making the case for model management, our main contribution is a ...

Publication - huliganka - 04/16/2013 - 02:49 - 0 comments - 1 attachment