... heterogeneous data, managing several data models in one integrated backend. Yet one of the many challenges these systems face is evolution management. In our demonstration, we present our prototype implementation of a tool called ...
Publication - cat - 04/17/2022 - 19:21 - 0 comments - 0 attachments
... even altogether schema-free. They allow to store datasets in different structural versions to co-exist. Yet even when the database ... about the structure of the stored data. For instance, in Figure 1, the Java code in lines 1 through 9 implies a schema: An entity for ...
Publication - cat - 04/17/2022 - 19:15 - 0 comments - 0 attachments
... naturally alongside the application code. Especially in agile development, new application releases are deployed frequently. ... the migration of versioned legacy data which is persisted in the cloud-hosted production database. We address this schema evolution ...
Publication - cat - 04/17/2022 - 18:58 - 0 comments - 0 attachments
... These ontology-based mappings and annotations are used in many applications and analysis tasks. Since biomedical ontologies are ... approaches to keep ontology-based mappings up-to-date in the presence of evolving ontologies. In this article, we survey current ...
Publication - cat - 01/23/2018 - 14:38 - 0 comments - 0 attachments
... Proc. 10th Intl. Conference on Data Integration in the Life Sciences (DILS) Citations ... of new insights and knowledge affects specific portions in ontologies and thus leads to their adaptation. Therefore, it is valuable to ...
Publication - cat - 01/23/2018 - 14:35 - 0 comments - 0 attachments
... Proc. 9th Intl. Conference on Data Integration in the Life Sciences (DILS) Citations ... We propose two approaches for tackling this problem in a largely automatic way: (1) a composition-based adaptation relying on ...
Publication - cat - 01/23/2018 - 14:33 - 0 comments - 0 attachments
... Proc. of 15. GI-Fachtagung für Datenbanksysteme in Business, Technologie und Web (BTW) ...
Publication - cat - 01/23/2018 - 14:29 - 0 comments - 0 attachments
... to support data integration and analysis tasks. Changes in the ontologies also require the adaptation of ontology mappings. So far the ... attention albeit ontologies change continuously especially in the life sciences. We therefore analyze how mappings between popular life ...
Publication - hartung - 01/23/2018 - 14:25 - 0 comments - 0 attachments
... to support data integration and analysis tasks. Changes in the ontologies also require the adaptation of ontology mappings. So far the ... attention albeit ontologies change continuously especially in the life sciences. We therefore analyze how mappings between popular life ...
Publication - cat - 01/23/2018 - 14:23 - 0 comments - 0 attachments
... them (eg, search engines and decision support systems) in order to assure an acceptable level of performance. Despite the recent advances in ontology evolution systems, the maintenance of semantic annotations remains an open problem. In this paper, we introduce, based on previous experiments, the main ...
Publication - cat - 01/21/2018 - 12:16 - 0 comments - 0 attachments
... Data Integration in the Life Science (DILS) Citations ... terminologies and ontologies is of high importance in the life sciences to enhance semantic interoperability, information ... tools to automatically determine possible annotations. In this study, we comparatively evaluate the quality of two such tools, cTAKES ...
Publication - cat - 01/21/2018 - 12:06 - 0 comments - 0 attachments
... with concepts of standardized vocabularies and ontologies. In the medical domain, many documents are not annotated at all and manual ... a reuse-based annotation approach that clusters items in medical documents according to verified ontology-based annotations. We ...
Publication - cat - 01/21/2018 - 12:06 - 0 comments - 0 attachments
... Data Integration in the Life Sciences (DILS) Citations ... clinical trials. It is crucial to harmonize medical forms in order to improve interoperability and data integration between medical ...
Publication - cat - 01/21/2018 - 12:05 - 0 comments - 0 attachments
... are involved. Moreover, system modifications that result in changes to database structure are relatively frequent [Sjoberg, D. 1992, ... schema is a common, but often troublesome, occurrence in database administration. These are significant industrial concerns, both ...
Publication - cat - 01/20/2018 - 09:23 - 0 comments - 0 attachments
... and database systems is that they change. Moreover, in so doing they evolve, although the manner and quality of this evolution is highly dependent on the mechanisms in place to handle it. While changes in data are handled well, changes in other ...
Publication - cat - 01/19/2018 - 18:53 - 0 comments - 0 attachments
... Schema versioning provides a mechanism for handling change in the structure of database systems and has been investigated widely, both in the context of static and temporal databases. With the growing interest in ...
Publication - cat - 01/19/2018 - 18:46 - 0 comments - 0 attachments
... to avoid the ad hoc, one-off extensions commonly employed in information systems design. Schema versioning is one of a number of related ... multiple schemata for various database related tasks. In particular, schema versioning, and its weaker companion, schema evolution, ...
Publication - cat - 01/19/2018 - 18:11 - 0 comments - 0 attachments
... We introduce a protocol for schema evolution in a globally distributed database management system with shared data, ... Our protocol is asynchronous--it allows different servers in the database system to transition to a new schema at different times--and ...
Publication - cat - 10/24/2013 - 14:57 - 0 comments - 0 attachments
... ETL architect needs to design and improve an ETL design in a way that satisfies both performance and correctness guarantees and often, she has to choose among various alternative designs. In this paper, we focus on ways to predict the maintenance effort of ETL ...
Publication - pvassil - 04/25/2013 - 08:40 - 0 comments - 0 attachments
Authors: Mullins, C.S. Author: Mullins, C Year: ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... Current view technology supports only static views in the sense that views become undefined and hence obsolete as soon as the ... view definitions to be dynamically evolved to keep them in synch with evolving ISs. We present in this paper a general strategy for the ...
Publication - cat - 04/17/2013 - 12:27 - 0 comments - 1 attachment
... 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
... n/a The entities described in the Gene Ontology, (i.e., molecular functions, cellular components and biological processes), often make reference (in their names) to other entities, either from GO or from other ontologies, ...
Publication - hartung - 04/17/2013 - 12:05 - 0 comments - 0 attachments
... these data models motivate the research effort we present in this paper. The goal of this work is to bridge relational and ontological worlds, in order to leverage the efficiency and scalability of relational technologies ...
Publication - krlis1337 - 04/17/2013 - 11:49 - 0 comments - 0 attachments
... 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
