... errors and thus data structures must change accordingly in order to address the new requirements. A consequence of schema evolution is ...
Publication - cat - 04/17/2013 - 12:27 - 0 comments - 0 attachments
... problems. For instance, incorporating a new program in a legacy database application can create an integrity mismatch, since the ... different (e.g. standard file model versus OO model). In addition, neither the legacy DBMS (too weak to address integrity issues ...
Publication - huliganka - 04/17/2013 - 12:05 - 0 comments - 1 attachment
... with the use of program understanding methods and tools. In this paper, we focus on the program slicing technique and we show how it can ...
Publication - acleve - 04/17/2013 - 12:05 - 0 comments - 0 attachments
... Workshop on Knowledge Discovery in Life Science Literature URL: ... 483.55 KB In recent years many biomedical ontologies have been developed and many of ... able to use multiple ontologies they have to be aligned. In this paper we propose strategies for aligning ontologies based on life ...
Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment
... schema evolution, standard information systems currently in use raise challenging evolution problems. This paper examines database ... and describe a CASE tool that can assist developers in their task of system evolution. We illustrate our approach with Biomaze, a ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... Generative and Transformational Techniques in Software Engineering, Lecture Notes in Computer Science 4143, 2006 URL: ...
Publication - acleve - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... and schema evolution. The novelty of this paper consists in a method for automatic generation of automappings (automorphisms) from key ... mappings is discussed on a scenario of data exchange in a P2P setting. (no paper type, Workshop, Sch. Matching/Mapping) ...
Publication - huliganka - 04/17/2013 - 11:27 - 0 comments - 0 attachments
... of semantical concepts, but only technical schema changes. In this paper we present our mapping of database schemas to ontologies, ...
Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments
... schemas, ontologies, and XML message formats. It is needed in many database applications, such as integration of web data sources, data warehouse loading and XML message mapping. In today's systems, schema matching is manual; a time-consuming, tedious, and ...
Publication - massmann - 04/17/2013 - 10:16 - 0 comments - 0 attachments
... a priori referenced by the local ontologies embedded in the various sources. When the shared ontology evolves over the time, the ... system turns to an asynchronous versioning problem. In this paper, we propose an approach and a model to deal with this problem in ...
Publication - cat - 04/17/2013 - 09:49 - 0 comments - 0 attachments
... n/a In this paper, we present a heuristic mapping method and a prototype mapping ... for the purpose of improving semantic interoperability in heterogeneous systems. The approach is based on the idea of semantic ...
Publication - cat - 04/17/2013 - 08:38 - 0 comments - 0 attachments
... groups of experts, actual ontology users are not involved in the development process. Such an individual approach in creating ontologies, lead to a weak community grounding. On the other hand, ...
Publication - cat - 04/17/2013 - 03:27 - 0 comments - 1 attachment
... of the integration architecture or mapping formalism. In this paper we provide a task model for schema integration. We use this breakdown to motivate a workbench for schema integration in which multiple tools share a common knowledge repository. In particular, the ...
Publication - cat - 04/17/2013 - 03:16 - 0 comments - 1 attachment
... merging and mapping is one of the most important issues in the Semantic Web because ontologies are developed and used by various ...
Publication - cat - 04/17/2013 - 03:05 - 0 comments - 1 attachment
... formal representation of a domain modeling the entities in the domain and their relations. When a domain is represented by multiple ... there is need for creating mappings among these ontologies in order to facilitate the integration of data annotated with and reasoning ...
Publication - hartung - 04/17/2013 - 02:49 - 0 comments - 1 attachment
... a tool, TReMer, for performing the merge operation in a model-driven development setting. Merge is arguably one of the most ... analysis over them. TReMer draws on the theory developed in our earlier work where we describe how a set of models can be merged ...
Publication - cat - 04/17/2013 - 02:38 - 0 comments - 1 attachment
... changes are aggregated to compound changes, resulting in a hierarchy of changes, thus facilitating the human reviewing process on ... patterns. The introduced ontology evolution patterns in conjunction with appropriate data migration algorithms enable the ...
Publication - hartung - 04/17/2013 - 02:27 - 0 comments - 1 attachment
... reference ontology. Each of the three ontologies is used, in turn, as the reference and evaluated against the other two ontologies. ... the number of concepts and the number of concept names in the reference ontology are important parameters determining the suitability ...
Publication - hartung - 04/17/2013 - 02:16 - 0 comments - 1 attachment
... mainly domain knowledge. As the use of ontologies in several kinds of ISs increased in the recent years significantly, the question of how to maintain these ...
Publication - hartung - 04/17/2013 - 01:27 - 0 comments - 1 attachment
... 326.3 KB Three themes are apparent in recent schema integration, evolution and versioning research. First, the ... approaches and outlines the current research directions in schema integration, evolution and versioning. (infoeng.flinders.edu.au) ...
Publication - cat - 04/17/2013 - 01:05 - 0 comments - 1 attachment
... 443.86 KB Updating an ontology that is in use may result in inconsistencies between the ontology and the knowledge base, dependent ...
Publication - hartung - 04/17/2013 - 01:05 - 0 comments - 1 attachment
... 295.69 KB With the wider use of ontologies in the Semantic Web and as part of production systems, multiple scenarios for ... the new versions serendipitously; ontology-development in a collaborative environment can be synchronous or asynchronous; managers of ...
Publication - hartung - 04/17/2013 - 00:49 - 0 comments - 1 attachment
... A key technology for the Semantic Web are ontologies. In recent years many biomedical ontologies have been developed and many of ... multiple ontologies they have to be aligned or merged. In this paper we propose a framework for aligning and merging ontologies. ...
Publication - cat - 04/17/2013 - 00:16 - 0 comments - 1 attachment
... schema matching has proven to be an important first step in developing mappings for data exchange, integration, restructuring and schema evolution. In this paper we investigate contextual schema matching, in which selection ...
Publication - huliganka - 04/17/2013 - 00:16 - 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
