Ontology-based mappings
نویسندگان
چکیده
منابع مشابه
Ontology-based mappings
Data translation consists of the task of moving data from a source database to a target database. This task is usually performed by developing mappings, i.e. executable transformations from the source to the target schema. However, a richer description of the target database semantics may be available in the form of an ontology. This is typically defined as a set of views over the base tables t...
متن کاملReasoning about Ontology Mappings
The use of logic-based representations in distributed environments such as the semantic web has lead to work on the representation of and reasoning with mappings between distributed ontologies. Up to now the investigation of reasoning methods in this area was restricted to the use of mapping for query answering or subsumption reasoning. In this paper, we investigate the task of reasoning about ...
متن کاملQuery-Based Comparison of Mappings in Ontology-Based Data Access
An ontology-based data access (OBDA) system is composed of one or more data sources, an ontology that provides a conceptual view of the data, and declarative mappings that relate the data and ontology schemas. In order to debug and optimize such systems, it is important to be able to analyze and compare OBDA specifications. Recent work in this direction compared specifications using classical n...
متن کاملRepairing Ontology Mappings
Automatically discovering semantic relations between ontologies is an important task with respect to overcoming semantic heterogeneity on the semantic web. Existing ontology matching systems, however, often produce erroneous mappings. In this paper, we address the problem of errors in mappings by proposing a completely automatic debugging method for ontology mappings. The method uses logical re...
متن کاملSemantic Enrichment of Ontology Mappings
Schema and ontology matching play an important part in the field of data integration and semantic web. Given two heterogeneous data sources, meta data matching usually constitutes the first step in the data integration workflow, which refers to the analysis and comparison of two input resources like schemas or ontologies. The result is a list of correspondences between the two schemas or ontolo...
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ژورنال
عنوان ژورنال: Data & Knowledge Engineering
سال: 2015
ISSN: 0169-023X
DOI: 10.1016/j.datak.2015.07.003