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Managing Multiple Ontologies and Ontology Evolution in Ontologging.

... applications building on Semantic Web technology. In this paper we first present the conceptual architecture underlying ...

Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments

Mapping-driven XML transformation

... 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

Modeling and Merging Database Schemas

... 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

Schema evolution in object databases by catalogs

... We are concerned by schema evolution in Object Oriented Databases (OODB) that is processed by a modification on the ... a new categorization of the different modifications in three categories : primitive, composite and complexe modifications. On ...

Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments

Improving XML Schema Matching Performance Using Prüfer Sequences

... for discovering semantic correspondences among elements in many data-shared applications. Most of existing schema matching algorithms produce scores between schema elements resulting in discovering only simple matches. Such results partially solve the problem. ...

Publication - alsayed - 07/28/2016 - 08:29 - 0 comments - 0 attachments

OntoMatch: A monotonically improving schema matching system for autonomous data integration

... individual matchers and the context of the application. In this paper, we propose a new method for schema matching in which wasteful computation is avoided by a prudent, and objective selection ...

Publication - cat - 07/28/2016 - 08:29 - 0 comments - 1 attachment

On Matching Large Life Science Ontologies in Parallel

... Data Integration in the Life Sciences (DILS) URL:  ... for parallel matching on multiple compute nodes. In particular, we consider inter-matcher and intra-matcher parallelism as well ...

Publication - hartung - 07/26/2016 - 16:40 - 0 comments - 0 attachments

An Architecture for Managing Database Evolution

... and extension) are available. The strategy of evolution in which our architecture is based is that of lsquoforward database ... down to the logical schema and to the extension. In order to put into practice this strategy, each component of a database is ... a translation information system is considered in order to manage the translation of conceptual elements into logical schema ...

Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment

Evaluating the validity of data instances against ontology evolution over the Semantic Web

... invalid, and as a result, may become non-interpretable. In this paper, we address precisely this problem, validity of data instances ... one component imply semantic changes to other components in the ontology. Third, we propose a validity identification approach that ...

Publication - cat - 04/17/2013 - 13:27 - 0 comments - 0 attachments

An introduction to schema versioning in OODBMS

... management systems (OODBMS) have enormous advantages in comparison to relational systems in modeling highly complex and dynamic application scenarios. Still they lack ...

Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments

A Propagation Mechanism for Populated Schema Versions

... value and their structure. As the structure is described in the schema of the database, support for schema evolution is a highly ... which can be used to perform the required changes, even in the presence of populated databases and running applications. In this paper, ...

Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments

X-Evolution: A System for XML Schema Evolution and Document Adaptation

... 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

Laconic Schema Mappings: Computing the Core with SQL Queries

... over the target schema that satisfies the schema mapping. In general, a given source instance may have numerous different solutions. ...

Publication - hartung - 04/17/2013 - 12:16 - 0 comments - 1 attachment

Wrapper-based evolution of legacy information systems

... 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

Data Reverse Engineering using System Dependency Graphs

... 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

Alignment of biomedical ontologies using life science literature

... 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

A Framework for Aligning Ontologies

... are an important technology for the Semantic Web. In different areas ontologies have already been developed and many of these ... there exist a number of systems that support users in aligning ontologies, but not many comparative evaluations have been performed. In this paper we present a general framework for aligning ontologies where ...

Publication - cat - 04/17/2013 - 11:49 - 0 comments - 1 attachment

Database application evolution: a transformational approach

... 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

Management of Executable Schema Mappings for XML Data Exchange

... 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

A visual tool for ontology alignment to enable geospatial interoperability

... 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

Structural characterizations of schema-mapping languages

... 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

An adaptive ontology mapping approach with neural network based constraint satisfaction

... It is a key challenge to achieve semantic interoperability in building the Semantic Web. This paper proposes a new generic and adaptive ... both linguistic and structural similarity of ontologies in a vector space model, and then aggregates them using an adaptive method ...

Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments

A Coevolution Approach for Database Schemas and Related Ontologies

... 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

The PRISM Workwench: Database Schema Evolution Without Tears

... to a perpetual evolution, which is particularly pressing in Web Information Systems, due to their distributed and often collaborative ... logical independence, and auditability of the process. In fact, PRISM exploits recent theoretical results on mapping composition, ...

Publication - krlis1337 - 04/17/2013 - 11:05 - 0 comments - 0 attachments

X-SOM: A Flexible Ontology Mapper

... may support automatic and user-transparent integration. In this paper we present X-SOM: an ontology mapping and integration tool. The ...

Publication - krlis1337 - 04/17/2013 - 10:38 - 0 comments - 0 attachments