... of heterogeneous data such as XML over the Web or in XML databases. By means of mappings from source to target schemas, Clio can ... precise semantics of data transformation and integration. In this paper we study the problem of how to efficiently implement such data ...
Publication - erhard - 06/15/2023 - 06:42 - 0 comments - 1 attachment
... the similarity between sets of annotated instances. In this paper we study how the choice of co-occurrence measures affects the ... study shows excellent results of instance-based matching in general, where the more simple measures often outperform more sophisticated ...
Publication - cat - 06/15/2023 - 06:42 - 0 comments - 0 attachments
... 50 - 99 In this article, we propose a change detection approach in the context of an ontology evolution framework for OWL DL ontologies. The ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... n/a In today's Web, many functionality-wise similar Web services are offered ... The typical approach to enable interoperation in such a heterogeneous setting is through developing adapters. There have ...
Publication - cat - 04/17/2013 - 12:16 - 0 comments - 0 attachments
... semantic web services, social networks and more. However, in open or evolving systems, different parties can adopt different ontologies. ... semantically related entities of different ontologies. In addition to equivalence, it explores relations such as consequence, ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 0 attachments
... 10 - 49 In distributed geospatial applications with heterogeneous databases, an ... with the concepts of the ontologies that describe the data in the distributed databases. Once the alignment between the global ontology ...
Publication - cat - 04/17/2013 - 11:27 - 0 comments - 0 attachments
... heart of model driven engineering (MDE) and can be used in many different application scenarios. For instance, model transformations ... that automates the development of model transformations. In this paper we propose a novel approach that uses matching transformations ...
Publication - huliganka - 04/17/2013 - 11:16 - 0 comments - 1 attachment
... 10 - 49 In different areas ontologies have been developed and many of these ontologies ... results, we need to find the relationships between terms in the different ontologies, i.e. we need to align them. Currently, there ...
Publication - cat - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... Proc. Conference on Research Challenges in Information Science (RCIS) URL: ... provided by current schema matching tools consist in aggregating the results obtained by several match algorithms to improve the ...
Publication - cat - 04/17/2013 - 07:27 - 0 comments - 1 attachment
... COMA++ [1]. ILIADS shows an average improvement of 25% in quality over FCA-merge and a 11% improvement in recall over COMA++. (Sch. Matching/Mapping) ...
Publication - cat - 04/17/2013 - 07:05 - 0 comments - 1 attachment
... the ability to map between their schemas. Unfortunately, in most cases matching between schema is still largely performed manually or ... finding semantic mappings became the principal bottleneck in the deployment of the mediation systems in large scale where the number of ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
... the algorithm is such that the SVD computation step has in practice good performance, which makes it feasible to perform clustering ...
Publication - salva - 04/17/2013 - 06:27 - 0 comments - 0 attachments
... for efficient database schema modeling and integration, in addition to their use in other disciplines such as the semantic web and natural language processing. ...
Publication - erhard - 04/17/2013 - 05:49 - 0 comments - 0 attachments
... 10 - 49 In this paper, we deal with the problem of performing what-if analysis for changes that occur in the schema/structure of the data warehouse sources. We abstract software ...
Publication - pvassil - 04/17/2013 - 04:49 - 0 comments - 0 attachments
... but there are still few and partial solu- tions. In general, given an information source, different translations can be defined for the same target model. In this work, we first identify gen- eral properties that “good” ... search. These techniques have been implemented in a tool for the man- agement of heterogeneous data models and some ...
Publication - paolop - 04/17/2013 - 04:38 - 0 comments - 1 attachment
... ALIMONY-BEA-SDSI.pdf 954.46 KB In this paper, we describe an in-progress effort to augment the data integration capabilities of a ... and service-enabling heterogeneous enterprise data sources in order to deliver data services for use by SOA applications. The schema ...
Publication - cat - 04/17/2013 - 04:05 - 0 comments - 1 attachment
... data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a ... be used to materialize data at the target or used as views in a virtually integrated system. We present a classification of mapping ...
Publication - cat - 04/17/2013 - 03:27 - 0 comments - 1 attachment
... of domain-specific models has not been explored deeply in the modeling community. Traditional modeling practice using the UML relies ... (i.e., all UML diagrams conform to a single metamodel). In contrast, Domain- Specific Modeling (DSM) is an emerging model-driven ...
Publication - cat - 04/17/2013 - 03:05 - 0 comments - 1 attachment
... it is rare that a schema mapping possesses an inverse. In this paper, we introduce and study the notion of a quasi-inverse of a ... negative results about the existence of quasi-inverses. In particular, we show that every LAV (local-as-view) schema mapping has a ...
Publication - huliganka - 04/17/2013 - 02:49 - 0 comments - 1 attachment
... Proc. of Data Integration in the Life Sciences (DILS), 2007 URL: ... 188.63 KB Ontologies are heavily used in life sciences so that there is increasing value to match different ...
Publication - hartung - 04/17/2013 - 02:49 - 0 comments - 1 attachment
... is proposed, and its application to the system described in Johnson et al. [15] is illustrated. Two judges categorized errors according ... The results of applying the model to the system described in [15] reveal the reason for a puzzling set of results in that paper, and also ...
Publication - hartung - 04/17/2013 - 01:49 - 0 comments - 1 attachment
... Size qhm.pdf 250.79 KB In this paper we analyze the problem of schema matching, explain why it is such ... and suggest directions for handling it effectively. In particular, we present the monotonicity principle and see how it leads to ...
Publication - avigal - 04/17/2013 - 01:27 - 0 comments - 1 attachment
... types of the schema elements and structural information. In this paper we propose two instance-based matchers for COMA++ to gain a ...
Publication - massmann - 04/17/2013 - 01:16 - 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
... 267.78 KB In this paper we study the problem of schema exchange, a natural extension of ...
Publication - paolop - 04/16/2013 - 09:27 - 0 comments - 1 attachment
