... Maedche, A.; Motik, B.; Stojanovic, L.; Studer, R.; Volz, R. ... Maedche, A Motik, B ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments
... large ontologies regarding real world domains bring a new challenge to the state of the art ontology matching technology. In this paper, we propose a divide-and-conquer approach to matching large ontologies. We develop a ...
Publication - massmann - 06/15/2023 - 06:42 - 0 comments - 0 attachments
... Hartung, M.; Gross, A.; Rahm, E. Author: ... E Gross, A Year: ...
Publication - hartung - 01/22/2018 - 09:28 - 0 comments - 0 attachments
... 11.7 KB A methodology for extracting an extended Entity-Relationship (EER) model from a relational database is presented. Through a combination of data schema and data instance analysis, an EER model is ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... an ontology, its data instances may become invalid, and as a result, may become non-interpretable. In this paper, we address precisely ... and demonstrate that it is sufficient to validate a data instance against the semantic view rather than the entire ontology. We ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 0 attachments
... - 99 In this article, we propose a change detection approach in the context of an ontology evolution framework ... been applied. Innovative is that the framework includes a change detection mechanism that allows generating automatically a detailed ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... range: n/a DB2 V8 begins the process of making it easier to ... schema evolution\". For example, as of V8, you can change a CHAR column to a larger size simply using ALTER. The remainder of this ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... Noy, Natalya Fridman; Musen, Mark A. Author: ... As ontology development becomes a more ubiquitous and collaborative process, developers face challenges in ...
Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments
... on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution andinstance ... compatibility for old applications, while permitting a wider range of evolution operations. It achieves this by supporting schema ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
... severe heterogeneity problems. For instance, incorporating a new program in a legacy database application can create an integrity mismatch, since the ...
Publication - huliganka - 04/17/2013 - 12:05 - 0 comments - 1 attachment
... to database schemas, to data and to programs through a general strategy. This strategy requires the documentation of database ... techniques. Our approach, called DB-MAIN, relies on a generic database model and on transformational paradigm that states that ... can be modeled by schema transformations. Indeed, a transformation provides both structural and instance mappings that formally ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... integration relies on the alignment of the concepts of a global ontology that describe the domain, with the concepts of the ontologies ... ontology is established, agreements that encode a variety of mappings between concepts are derived. In this way, users can ...
Publication - cat - 04/17/2013 - 11:27 - 0 comments - 0 attachments
... 11.7 KB Information integration is a key challenge faced by all major organizations, business and governmental ... formalisms and are chosen with two criteria in mind: (a) expressive power sufficient to specify interesting data interoperability ...
Publication - cat - 04/17/2013 - 11:16 - 0 comments - 1 attachment
... sources. To be effective, such systemsmust provide a unified, queryable schema, and must be able to transform data from different ... to connect to several information sources makes them a natural base for doing more complex transformations as well. In this paper, ...
Publication - massmann - 04/17/2013 - 10:38 - 0 comments - 1 attachment
... to improve the matching effectiveness. This paper presents a dynamic multistrategy ontology alignment framework, named RiMOM. The key ... between ontologies may vary widely. We propose a systematic approach to quantitatively estimate the similarity characteristics ...
Publication - george - 04/17/2013 - 10:38 - 0 comments - 0 attachments
... analysers, and program transformations. We provide a pragmatic, transformation-based approach for expressing and tracking changes ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... for database applications. The paper presents a method for measuring modifications to database schemata and their consequences, by using a thesaurus tool. Measurements of the evolution of a large-scale database application currently running in several hospitals in ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... of both practitioners and researchers would be helped by a more objective and finer granularity recognition of types of software ... as actually done. To these ends, this paper proposes a clarifying redefinition of the types of software evolution and software ...
Publication - erhard - 04/17/2013 - 09:16 - 0 comments - 0 attachments
... range: n/a The authors review propagation patterns for describing object-oriented software at a higher level of abstraction than one used by today's programming languages. A ...
Publication - erhard - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... 10 - 49 In this paper we present a formal model for the support of temporal schema versions in object-oriented databases. Its definition is partially based on a generic (ODMG compatible) object model and partially introduces new concepts. ...
Publication - fgrandi - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... to support both aspects of transaction time, evolution of a database's contents and evolution of a database's schema. They define a relation's schema to be the relation's ...
Publication - erhard - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... It is often difficult to obtain a good conceptual understanding of a legacy database, especially when there is a lack of documentation. Database ...
Publication - cat - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... 100 - 499 When a database is shared by many users, updates to the database schema are almost always prohibited because there is a risk of making existing application programs obsolete when they run against ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
... Mecca, G; Raunich, S; Pappalardo, A Author: ... Pappalardo, A Year: ...
Publication - salva - 04/17/2013 - 06:27 - 0 comments - 0 attachments
... Rundensteiner, Elke A.; Koeller, Andreas; Zhang, Xin ... E Koeller, A Zhang, X ...
Publication - cat - 04/17/2013 - 06:16 - 0 comments - 1 attachment
