... class extensions and types is an essential task in database design. In the context of view integration and schema integration for federated ... be merged. Inheritance hierarchies often occur explicitly in object-oriented databases as well as implicitly in relational databases. ...
Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments
... process would be to train a classifier for each category in the master taxonomy, and then classify objects from the source taxonomy into these categories. In this paper we attempt to use a powerful classification method, Support ...
Publication - cat - 07/03/2022 - 23:42 - 0 comments - 1 attachment
... that can be made by querying a database system, and, in particular, look at which observations are valid for a particular database ... being merged. However we establish that one cannot, in general, find a meaningful binary merging operator which is associative, ...
Publication - huliganka - 07/03/2022 - 23:42 - 0 comments - 0 attachments
... Such a Diff supports the synchronization of changes in collaborative curation, the adaptation of dependent data such as ... entire subgraphs. The proposed algorithm is customizable in different ways to meet the requirements of diverse ontologies and ... be used for version management and annotation migration in collaborative curation. (Diff, Journal, Ontology evolution, Research ...
Publication - hartung - 01/22/2018 - 09:28 - 0 comments - 0 attachments
... These have been demonstrated to be implementable in a knowledge-based system; a working prototype system which does so is briefly discussed. In addition, cases in which human input is required are also clearly identified. This research ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... 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
... mappings into SQL views to reassemble the objects stored in relational tables. Second, it offers interactive editing, i.e., incremental ...
Publication - cat - 04/17/2013 - 12:16 - 0 comments - 1 attachment
... this challenge that have received considerable attention in recent years are data exchange and data integration. The study of data ... database schemas. Schema mappings are typically expressed in declarative languages based on logical formalisms and are chosen with two ...
Publication - cat - 04/17/2013 - 11:16 - 0 comments - 1 attachment
... hierarchies. This procedure assists a designer in defining a global view which is a view over multiple databases. The small ... levels. The merging procedure applies the rules in two phases. In the connecting phase, the input generalization hierarchies are connected to ...
Publication - cat - 04/17/2013 - 09:27 - 0 comments - 1 attachment
... n/a Semantic matching of schemas in heterogeneous data sharing systems is time consuming and error prone. ... techniques for mapping two schemas at a time. In a large-scale scenario, where data sharing involves a large number of data ...
Publication - cat - 04/17/2013 - 08:05 - 0 comments - 0 attachments
... ontologies akin to maintaining versions of software code in large software projects. Versioning systems for software code provide ...
Publication - cat - 04/17/2013 - 07:38 - 0 comments - 0 attachments
... 500 - 999 Researchers in the ontology-design field have developed the content for ontologies in many domain areas. This distributed nature of ontology development has led ...
Publication - cat - 04/17/2013 - 05:38 - 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
... 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
... “model” is today considered as a promising technology in domains such as data and software engineering. In the field of model engineering, models are now viewed as firts-class ...
Publication - huliganka - 04/17/2013 - 00:49 - 0 comments - 1 attachment
... version and configuration management. Most previous work in change management has dealt with flat-file and relational data; we focus on hierarchically structured data. Since in many cases changes must be computed from old and new versions of the data, ...
Publication - huliganka - 04/17/2013 - 00:49 - 0 comments - 1 attachment
... databases, and version and configuration management. In this paper we focus on detecting meaningful changes in hierarchically structured data, such as nested-object data. This problem is ...
Publication - huliganka - 04/17/2013 - 00:38 - 0 comments - 1 attachment
... A into B have long been known to be dual problems. In this paper, they are shown to be equivalent to finding a shortest/longest path in an edit graph. Using this perspective, a simple O(ND) time and space ...
Publication - huliganka - 04/16/2013 - 23:16 - 0 comments - 1 attachment
... of an ontology which users can interactively analyze in multiple ways. Availability and Implementation: CODEX is available under ... and is supported by all major browsers. It is implemented in Java based on Google Web Toolkit technology. Additionally, users can access ...
Publication - hartung - 04/16/2013 - 23:05 - 0 comments - 0 attachments
... describe entities of domains, such as genes and proteins in life sciences. Their increasing size and the high frequency of updates resulting in a large set of ontology versions necessitates efficient management and ... (Compose, Diff, Journal, Mapping evolution, OA in the Life Sciences, Ontology evolution, Research paper, Versioning) ...
Publication - hartung - 04/16/2013 - 23:05 - 0 comments - 0 attachments
... Semantic Interoperability in Medical Informatics @ ESWC 2012 ... promising for highly interconnected ontologies such as in the life science domain. There may be many ontologies that can be used for ...
Publication - hartung - 04/16/2013 - 22:49 - 0 comments - 1 attachment
... 10 - 49 In this article we present extensional mappings, that are based on second order tuple generating dependencies between models in our Generic Role-based Metamodel GeRoMe. Our mappings support data ...
Publication - dk - 04/16/2013 - 22:27 - 0 comments - 0 attachments
... 210.74 KB Ontologies are being used nowadays in many areas, including bioinformatics. One of the issues in ontology research is the aligning and merging of ontologies. Tools have ...
Publication - cat - 04/16/2013 - 21:38 - 0 comments - 1 attachment
... the most important of which is that schemas are placed in a partial order that has bounded joins. This means that the merging ... that the merge of schemas is independent of the order in which they are considered --- a property not possessed by existing ...
Publication - huliganka - 04/16/2013 - 20:38 - 0 comments - 1 attachment
... A subtle problem of schema integration is considered in its general form, not bound to any particular category of schemas. The ... theory are established that apply to integrity problems in schema integration. The theory is illustrated by a particular category of ...
Publication - huliganka - 04/16/2013 - 19:27 - 0 comments - 1 attachment
