... 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
... and collaborative process, developers face challenges in managing multiple ontologies, including comparing, aligning, and merging ... different formalisms. The uniform framework presented in this article assists users with these tasks by leveraging data and algorithms developed for one tool in other tools. (Journal, no paper type, Ontology Alignment, Ontology ...
Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments
... This aspect has been acknowledged and long studied in the field of temporal databases but it truly applies also to the World Wide ... a primary issue yet. However, several papers addressing, in an explicit or implicit way, the representation and management of time and ...
Publication - cat - 04/17/2013 - 12:49 - 0 comments - 1 attachment
... approach for expressing and tracking changes in rule-based programs in the course of program evolution. To this end, we design an operator suite ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... and schema objects is badly needed by us all, especially in complex, multi-enterprise development situations. This paper describes how ... and schema development are essentially synonymous, in that the applicable techniques and requisite technology are the same for ...
Publication - cat - 04/17/2013 - 08:16 - 0 comments - 0 attachments
... XML documents that satisfy a given schema, e.g., a DTD. In this context, when a given update violates the schema, it might be the ... to be used by a data administrator who is an expert in the domain of application of the database, but who is not required to be a ...
Publication - cat - 04/17/2013 - 07:27 - 0 comments - 0 attachments
... valid even as the modeled environment changes. However, in practice, data models are not nearly as stable as commonly assumed by the ... though a rich set of schema change operations is provided in current database systems, the users suffer from the problem that schema ...
Publication - erhard - 04/17/2013 - 04:49 - 0 comments - 0 attachments
... molecular functions, and biological processes used in the annotation of genes and gene products. These constitute three separate ... The question we address here is: how are the terms in these three separate ontologies related to each other? We use statistical ...
Publication - hartung - 04/17/2013 - 02:05 - 0 comments - 1 attachment
... or XML schemas, and can be independently designed. In addition to the source-to-target mappings, we consider as part of the ... at the target. We define the semantics of query answering in such an integration scenario, and design two novel algorithms, basic query ...
Publication - huliganka - 04/17/2013 - 00:38 - 0 comments - 1 attachment
... a data warehouse reflects a real world, i.e. data stored in a DW come from real production systems. On the other hand, a DW and its ... and therefore they are not able to support any dynamics in their structure and content. For these purposes, multiversion data ...
Publication - huliganka - 04/17/2013 - 00:27 - 0 comments - 1 attachment
... to automate aspects of XML schemas matching task. In this paper, we identify two major problems encountered when current matching algorithms are used in the context of XML documents transformations. The first problem concerns ...
Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment
... the rapid development of XML mapping queries written in XQuery. XLearner is novel in that it learns XQuery queries consistent with given examples (fragments) ...
Publication - huliganka - 04/16/2013 - 23:16 - 0 comments - 1 attachment
... The evolution of external data sources has to be reflected in a DW, that uses the sources. Traditional DW systems offer a limited support for handling dynamics in their structure and content. A promising approach to handling changes in DW ...
Publication - huliganka - 04/16/2013 - 22:38 - 0 comments - 1 attachment
... Proceedings of the Workshop on Evolution and Change in Data Management (ECDM 2004), LNCS 3289, pp. 377-389 ... one model to another. This framework can also be applied in the context of metadata management for database evolution, in which ...
Publication - jlloret - 04/16/2013 - 22:05 - 0 comments - 1 attachment
... being a highly expressive data integration approach, BAV in additional provides a method to support a wide range of data modelling ... This paper documents how BAV has been implemented in the AutoMed repository, and how several practical problems in data ...
Publication - huliganka - 04/16/2013 - 21:49 - 0 comments - 1 attachment
... schemas. The problem has a particular significance in integrating web repositories, as distributed databases over the web ... problems due to the abundance of abbreviations in real-world schemas. For example, none of the lexical matchers we tested ... number’ and ’customer ID’ are matching entities. In this work we propose a method for abbreviation expansion in schemas that ...
Publication - huliganka - 04/16/2013 - 21:27 - 0 comments - 1 attachment
... that the input document may be preprocessed, which in certain situations, may be computationally and memory intensive. In this paper, we describe how knowledge of conformance to an XML Schema (or ...
Publication - huliganka - 04/16/2013 - 21:06 - 0 comments - 1 attachment
... and complex schemas. Such schemas are increasingly written in the standard language W3C XML schema, especially in E-business applications. The high expressive power and versatility of this ...
Publication - admin - 04/16/2013 - 20:38 - 0 comments - 1 attachment
... effect as applying successively the two schema mappings. In this paper, we give a rigorous semantics to the composition of schema ... We first study the important case of schema mappings in which the specification is given by a finite set of source-to-target ...
Publication - cat - 04/16/2013 - 19:16 - 0 comments - 1 attachment
... 2.79 MB Continuously arising new trends in information technology and developments at the (e–business) market let ... However, if this technology shall be applicable in practice it must be possible to change running business processes even at ...
Publication - cat - 04/16/2013 - 19:05 - 0 comments - 1 attachment
... such applications by providing a database infrastructure in which a set of high-level algebraic operators, such as Match, Merge, and ... and develop novel algorithms for implementing them. In particular, we present an innovative algorithm based on fixpoint ...
Publication - cat - 04/16/2013 - 18:38 - 0 comments - 1 attachment
... 287.26 KB The use of computers to assist in the learning situation in a simulation, game, tutorial, or drill and practice mode is reviewed on an ...
Publication - admin - 04/16/2013 - 17:49 - 0 comments - 1 attachment
... 315.61 KB In dynamic environments like theWeb, data sources may change not only their ...
Publication - admin - 04/16/2013 - 17:38 - 0 comments - 1 attachment
... tools should be well suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two ... easily extensible data management architecture in which any user can contribute new data, schema information, or even mappings ... paper considers the problem of schema mediation in a PDMS. Our first contribution is a flexible language for mediating between ...
Publication - admin - 04/16/2013 - 17:27 - 0 comments - 1 attachment
... when two agents or services use different ontologies. In the existing literature, the focus has so far been on improving the ... than existing prominent approaches. Then, we show in experiments that this theoretical investigation translates into practical ...
Publication - admin - 04/16/2013 - 17:16 - 0 comments - 1 attachment
