... KB Schema matching is a critical step in many applications, such as XML message mapping, data warehouse loading, and schema integration. In this paper, we investigate algorithms for generic schema matching, ...
Publication - admin - 04/17/2013 - 10:49 - 0 comments - 1 attachment
... ALIMONY-BEA-SDSI.pdf 954.46 KB In this paper, we describe an in-progress effort to augment the data integration capabilities of a ... and service-enabling heterogeneous enterprise data sources in order to deliver data services for use by SOA applications. The schema ...
Publication - cat - 04/17/2013 - 04:05 - 0 comments - 1 attachment
... that it does not contain semantic inconsistencies. In this paper,we describe the ASMOV algorithm, and then present experimental ...
Publication - cat - 04/17/2013 - 03:49 - 0 comments - 1 attachment
... Proc. 2nd OOPSLA Workshop on Hot Topics in Software Upgrades URL: ... This paper describes Edition-Based Redefinition (EBR) in the Oracle database --- a novel technology and methodology to build database ...
Publication - cat - 04/17/2013 - 03:38 - 0 comments - 1 attachment
... data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a ... be used to materialize data at the target or used as views in a virtually integrated system. We present a classification of mapping ...
Publication - cat - 04/17/2013 - 03:27 - 0 comments - 1 attachment
... merging and mapping is one of the most important issues in the Semantic Web because ontologies are developed and used by various ...
Publication - cat - 04/17/2013 - 03:05 - 0 comments - 1 attachment
... it is rare that a schema mapping possesses an inverse. In this paper, we introduce and study the notion of a quasi-inverse of a ... negative results about the existence of quasi-inverses. In particular, we show that every LAV (local-as-view) schema mapping has a ...
Publication - huliganka - 04/17/2013 - 02:49 - 0 comments - 1 attachment
... conceptually integrated into a single cohesive data set. In recent years agents have been increasingly used in information systems to promote performance. In this work we propose a ...
Publication - avigal - 04/17/2013 - 02:27 - 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
... schema matching has proven to be an important first step in developing mappings for data exchange, integration, restructuring and schema evolution. In this paper we investigate contextual schema matching, in which selection ...
Publication - huliganka - 04/17/2013 - 00:16 - 0 comments - 1 attachment
... 666.47 KB Many problems in information integration rely on specifications, called schema mappings, that ... for both relational and nested data are well-known. In this work, we present a new formalism for schema mapping that extends these existing formalisms in two significant ways. First, our nested mappings allow for nesting and ...
Publication - huliganka - 04/17/2013 - 00:05 - 0 comments - 1 attachment
... 180 KB In order to formulate a meaningful XML query, a user must have some knowledge ... assumed by the user, thus causing the query to fail. In this paper, we try to solve this query and data schema mismatching problem ...
Publication - huliganka - 04/16/2013 - 23:49 - 0 comments - 1 attachment
... be a Σ1-query. An (equivalent) reformulation of q1 in the presence of C is a Σ2-query, q2, such that q2 gives the same ... ∪ Σ2-database instance that satisfies C. In general, there may exist multiple such reformulations and choosing among ...
Publication - huliganka - 04/16/2013 - 23:38 - 0 comments - 1 attachment
... evolution, an area which has recently gained much interest in both research and practice. (Schema Evolution, Sigmod Record, Survey / ...
Publication - admin - 04/16/2013 - 22:49 - 0 comments - 1 attachment
... between database schemas. Schema mappings are prominent in several different areas of database management, including database design, ... and peer-to-peer data management systems. Our main aim in this paper is to present an overview of recent advances in data exchange and ...
Publication - cat - 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
... where data items originated, but also why they appear in the integration as they do and through what transformation they were derived. This problem is known as data provenance. In this work, we consider data provenance at the schema and mapping level. In ...
Publication - huliganka - 04/16/2013 - 20:49 - 0 comments - 1 attachment
... effort required for validation quickly becomes huge in large scale environments. The performance of a matching system, however, ... for measuring this trade-off is often a severe obstacle. In this paper, we present a technique for determining lower and upper ...
Publication - huliganka - 04/16/2013 - 20:27 - 0 comments - 1 attachment
... algorithms for large schemas prohibitively inefficient. In this paper we propose a clustering based technique for improving the ... efficiency and effectiveness. The technique can be used in addition to other optimization techniques. In the paper we describe the ...
Publication - huliganka - 04/16/2013 - 20:16 - 0 comments - 1 attachment
... calculate and display the entire set of correspondences in a single shot. Invariably, the result presented to the engineer includes ... the match algorithm fast enough for incremental matching in large schemas and to devise a user interface that avoids overwhelming the ...
Publication - cat - 04/16/2013 - 18:16 - 0 comments - 1 attachment
... adaptive program? We give several intuitive explanations in common terminology. - An Adaptive program is similar to a genre. ... adaptive program, like a multipurpose mechanism, is useful in a set of related contexts. In some contexts an adaptive program does ...
Publication - cat - 04/16/2013 - 17:27 - 0 comments - 1 attachment
... 225.15 KB In a Web database that dynamically provides information in response to user queries, two distinct schemas, interface schema (the schema ... matching across query interfaces of Web databases. In this paper, we propose a novel schema model that distinguishes the ...
Publication - admin - 04/16/2013 - 17:05 - 0 comments - 1 attachment
... Schema matching is a basic problem nowadays in many application areas, such as data integration, data warehouse and e-business. In this paper, we propose a generic schema matching method called GSM ...
Publication - admin - 04/16/2013 - 16:38 - 0 comments - 1 attachment
... 250.47 KB In this paper we motivate and describe materialized views, their applications, ... describe some of the view maintenance techniques proposed in the literature in terms of our taxonomy. Finally, we consider new and promising application ...
Publication - cat - 04/16/2013 - 16:05 - 0 comments - 1 attachment
... 41.57 KB The difficulty inherent in schema matching has led to the development of several generic match ... aspects of the ontologies as they are represented in a generic meta-model. Lexical matching identifies concepts with similar ...
Publication - admin - 04/16/2013 - 15:27 - 0 comments - 1 attachment
