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295
A classification of schema-based matching approaches
- JOURNAL ON DATA SEMANTICS
, 2005
"... Schema/ontology matching is a critical problem in many application domains, such as, semantic web, schema/ontology integration, data warehouses, e-commerce, catalog matching, etc. Many diverse solutions to the matching problem have been proposed so far. In this paper we present a taxonomy of schema- ..."
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Cited by 386 (21 self)
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Schema/ontology matching is a critical problem in many application domains, such as, semantic web, schema/ontology integration, data warehouses, e-commerce, catalog matching, etc. Many diverse solutions to the matching problem have been proposed so far. In this paper we present a taxonomy of schema-based matching techniques that builds on the previous work on classifying schema matching approaches. Some innovations are in introducing new criteria which distinguish between matching techniques relying on diverse semantic clues. In particular, we distinguish between heuristic and formal techniques at schemalevel; and implicit and explicit techniques at element- and structure-level. Based on the classification proposed we overview some of the recent schema/ontology matching systems pointing which part of the solution space they cover.
Subspace clustering for high dimensional data: a review
- ACM SIGKDD Explorations Newsletter
, 2004
"... Subspace clustering for high dimensional data: ..."
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An API for ontology alignment
- In Proc. 3rd international semantic web conference
, 2004
"... Relating ontologies is very important for many ontology-based applications and more important in open environments like the semantic web. The relations between ontology entities can be obtained by ontology matching and represented as alignments. Hence, alignments must be taken into account in ontolo ..."
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Cited by 176 (28 self)
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Relating ontologies is very important for many ontology-based applications and more important in open environments like the semantic web. The relations between ontology entities can be obtained by ontology matching and represented as alignments. Hence, alignments must be taken into account in ontology management. This chapter establishes the requirements for alignment management. After a brief introduction to matching and alignments, we justify the consideration of alignments as independent entities and provide the life cycle of alignments. We describe the important functions of editing, managing and exploiting alignments and illustrate them with existing components.
Adding Semantics to Web Services Standards
, 2003
"... With the increasing growth in popularity of Web services, discovery of relevant Web services becomes a significant challenge. One approach is to develop semantic Web services where by the Web services are annotated based on shared ontologies, and use these annotations for semantics-based discovery o ..."
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Cited by 175 (28 self)
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With the increasing growth in popularity of Web services, discovery of relevant Web services becomes a significant challenge. One approach is to develop semantic Web services where by the Web services are annotated based on shared ontologies, and use these annotations for semantics-based discovery of relevant Web services. We discuss one such approach that involves adding semantics to WSDL using DAML+OIL ontologies. Our approach also uses UDDI to store these semantic annotations and search for Web services based on them. We compare our approach with another initiative to add semantics to support Web service discovery, and show how our approach may fit current standards-based industry approach better.
Ontologies and semantics for seamless connectivity
- SIGMOD Record
, 2004
"... The goal of having networks of seamlessly connected people, software agents and IT systems remains elusive. Early integration efforts focused on connectivity at the physical and syntactic layers. Great strides were made; there are many commercial tools available, for example to assist with enterpris ..."
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Cited by 95 (0 self)
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The goal of having networks of seamlessly connected people, software agents and IT systems remains elusive. Early integration efforts focused on connectivity at the physical and syntactic layers. Great strides were made; there are many commercial tools available, for example to assist with enterprise application integration. It is now recognized that physical and syntactic connectivity is not adequate. A variety of research systems have been developed addressing some of the semantic issues. In this paper, we argue that ontologies in particular and semantics-based technologies in general will play a key role in achieving seamless connectivity. We give a detailed introduction to ontologies, summarize the current state of the art for applying ontologies to achieve
Information Integration Using Contextual Knowledge and Ontology Merging
, 2003
"... With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team u ..."
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Cited by 51 (7 self)
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With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team used metric units, the other English while exchanging a critical maneuver data. In this Thesis, we focus on the two intertwined sub problems of logical connectivity, namely data extraction and data interpretation in the domain of heterogeneous information systems. The first challenge, data extraction, is about making it possible to easily exchange data among semi-structured and structured information systems. We describe the design and implementation of a general purpose, regular expression based Caméléon wrapper engine with an integrated capabilities-aware planner/optimizer/executioner. The second challenge, data interpretation, deals with the existence of heterogeneous contexts, whereby each source of information and potential receiver of that information may operate with a different context, leading to large-scale semantic heterogeneity. We extend the existing formalization of the COIN framework with new logical formalisms and features to handle larger
Inferring Complex Semantic Mappings Between Relational Tables and Ontologies from Simple Correspondences
- In ODBASE’05
, 2005
"... Abstract. There are many problems requiring a semantic account of a database schema. At its best, such an account consists of mapping formulas between the schema and a formal conceptual model or ontology (CM) of the domain. This paper describes the underlying principles, algorithms, and a prototype ..."
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Cited by 50 (9 self)
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Abstract. There are many problems requiring a semantic account of a database schema. At its best, such an account consists of mapping formulas between the schema and a formal conceptual model or ontology (CM) of the domain. This paper describes the underlying principles, algorithms, and a prototype of a tool which infers such semantic mappings when given simple correspondences from table columns in a relational schema to datatype properties of classes in an ontology. Although the algorithm presented is necessarily heuristic, we offer formal results stating that the answers returned are “correct ” for relational schemas designed according to standard Entity-Relationship techniques. We also report on experience in using the tool with public domain schemas and ontologies. 1
Kühn H.: Metamodelling Platforms
- In Proceedings of the 3rd International Conference EC-Web 2002 – Dexa 2002, Aix-en-Provence, France, 2002, LNCS 2455
"... Abstract. The state-of-the-art in the area of modelling of organisations is based on fixed metamodels. Due to rapid changing business requirements the complexity in developing applications which deliver business solutions is continually growing. To manage this complexity, environments providing flex ..."
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Cited by 44 (4 self)
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Abstract. The state-of-the-art in the area of modelling of organisations is based on fixed metamodels. Due to rapid changing business requirements the complexity in developing applications which deliver business solutions is continually growing. To manage this complexity, environments providing flexible metamodelling capabilities instead of fixed metamodels has shown to be helpful. The main characteristic of such environments is that the formalism of modelling- the metamodel- can be freely defined and therefore be adapted to the problem under consideration. This paper gives an introduction into metamodelling concepts and presents a generic architecture for metamodelling platforms. Three best practice examples from industry projects applying metamodelling concepts in the area of business process modelling for e-business, e-learning, and knowledge management are presented. Finally, an outlook to future developments and research directions in the area of metamodelling is given. 1
Information fusion for visual reference resolution in dynamic situated dialogue
- PERCEPTION AND INTERACTIVE TECHNOLOGIES: INTERNATIONAL TUTORIAL AND RESEARCH WORKSHOP, PIT 2006, VOLUME 4021 OF LECTURE NOTES IN COMPUTER SCIENCE
, 2006
"... Human-Robot Interaction (HRI) invariably involves dialogue about objects in the environment in which the agents are situated. The paper focuses on the issue of resolving discourse references to such visual objects. The paper addresses the problem using strategies for intra-modal fusion (identifying ..."
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Cited by 30 (18 self)
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Human-Robot Interaction (HRI) invariably involves dialogue about objects in the environment in which the agents are situated. The paper focuses on the issue of resolving discourse references to such visual objects. The paper addresses the problem using strategies for intra-modal fusion (identifying that different occurrences concern the same object), and inter-modal fusion, (relating object references across different modalities). Core to these strategies are sensorimotoric coordination, and ontology-based mediation between content in different modalities. The approach has been fully implemented, and is illustrated with several working examples.
Semantically driven service interoperability for pervasive computing
- Proceedings of the 3rd ACM International Workshop on Data Engineering for Wireless and Mobile Access
, 2003
"... The common vision of pervasive computing environments requires a very large range of devices and software components to interoperate seamlessly. From the assumption that these devices and associated software permeate the fabric of everyday life, a massive increase looms in the number of software dev ..."
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Cited by 29 (9 self)
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The common vision of pervasive computing environments requires a very large range of devices and software components to interoperate seamlessly. From the assumption that these devices and associated software permeate the fabric of everyday life, a massive increase looms in the number of software developers deploying functionality into pervasive computing environments. This poses a very large interoperability problem for which solutions reliant solely on interoperability standards will not scale. An interoperability problem of a similar scale is presented by the desire for a Semantic Web supporting autonomous machine communication over the WWW. Here, solutions based on service-oriented architectures and ontologies are being actively researched, and we examine how such an approach could be used to address pervasive computing's interoperability problem. The paper outlines the potential role that semantic techniques offer in solving some key challenges, including candidate service discovery, intelligent matching, service adaptation and service composition. In particular the paper addresses the resulting requirement of semantic interoperability outlining initial results in dynamic gateway generation. In addition the paper proposes a roadmap identifying the different scenarios in which semantic techniques will contribute to the engineering and operation of pervasive computing systems.
