... 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
... 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
... DBRE is proposed as a two-phase process consisting in recovering the DBMSdependent data structures (data structure extraction) then in recovering their semantics (data structure conceptualization). The second ...
Publication - cat - 04/17/2013 - 09:38 - 0 comments - 1 attachment
... science literature, Amazon product taxonomy, etc.). As in heterogenous communities users typically will use different parts of such ... between own preferences and the one of other people. In this paper we adapt a collaborative filtering recommender system to assist ...
Publication - erhard - 04/17/2013 - 09:27 - 0 comments - 0 attachments
... 23.88 KB Abstract. In this paper, we present a novel approach for the management of the ... management system. It extends our previous work in the ontology evolution by taking into account the usage of the ontology in the knowledge management system. The approach is mainly based on the ...
Publication - erhard - 04/17/2013 - 09:05 - 0 comments - 1 attachment
... keep the programs flexible and short, they are described in terms of propagation patterns. Each phase of an evolution history is tested in small steps that are constrained by class dictionary graphs belonging to a ...
Publication - erhard - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... as a data exchange format or it is used for data storage in database systems and distributed information systems. While the usage of ...
Publication - cat - 04/17/2013 - 07:38 - 0 comments - 0 attachments
... (or view). However, existing support is lacking in two ways. First, change primitives as presented in literature are very limiting in terms of their capabilities allowing users ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
... provide high level quality of data and quality of service. In the DWQ project we have proposed an architectural framework and a repository ... metadata which describes all the data warehouse components in a set of metamodels to which is added a quality metamodel, defining for each ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 1 attachment
... database system needs to support changes to its schema in order to facilitate the requirements of new applications and to support interoperability within a multidatabase system. In this paper, we present an approach to schema evolution through changes to ...
Publication - erhard - 04/17/2013 - 05:16 - 0 comments - 0 attachments
... 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
... for heterogeneous data exchange. Its popularity is due in large part to the ease with which diverse kinds of information can be ... exchanging such information between autonomous sources. In the absence of controlling standards, such sources will typically choose ...
Publication - cat - 04/16/2013 - 18:05 - 0 comments - 1 attachment
... matching, called semantic matching. As its name indicates, in semantic matching the key intuition is to exploit the model-theoretic information, which is codified in the nodes and the structure of graphs. The contributions of this paper are ...
Publication - admin - 04/16/2013 - 16:49 - 0 comments - 1 attachment
... an SQL extension capable of handling schema evolution in relational database systems. (no paper type, relational, Sigmod Record) ...
Publication - cat - 04/16/2013 - 16:16 - 0 comments - 1 attachment
... WebIQ extends question answering techniques commonly used in the AI community for this purpose. We describe how to incorporate WebIQ into ... over five realworld domains show the utility ofWebIQ. In particular, the results show that acquired instances help improve matching ...
Publication - admin - 04/16/2013 - 14:05 - 0 comments - 1 attachment
... system is modified, the database needs to be changed in such a way that the schema and the database remain consistent with each other. This paper describes the algorithm implemented in the new forthcoming release of the O2 object database for automatically ...
Publication - cat - 04/16/2013 - 11:27 - 0 comments - 1 attachment
... KB Sollen Workflow-Management-Systeme (WfMS) in umfassender Weise fur die rechnerbasierte Verwaltung und Steuerung von ... wo gewnscht und mglich auch auf die bereits (vielleicht in groer Zahl) laufenden Workflow-Instanzen bertragen werden sollen. Dies bei ...
Publication - cat - 04/16/2013 - 11:05 - 0 comments - 1 attachment
... schema is defined and the problems which need to be solved in order to obtain a usable schema update mechanism are shown. The distinction ... and behavioral consistency for the O2 system is described in some detail and it is demonstrated how updates could be performed by ...
Publication - cat - 04/16/2013 - 08:16 - 0 comments - 0 attachments
... semantic mappings are necessary but troublesome in data sharing systems. While most current work focuses on seeking automated ... for constructing exten-sible mappings between XML schemas. In our model, complex global mappings are constructed by first defining simple ...
Publication - massmann - 04/15/2013 - 21:27 - 0 comments - 0 attachments
