E. Mena, V. Kashyap, A. Sheth, and A. Illarramendi. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Proceedings of the First International Conference on Formal Ontologies in Information Systems. Trento, Italy. June 1998.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....conjunction with similarity measures to yield prospective mappings between ontology concepts. Other works worth citing here are Chalupsky s OntoMorph [5] translation system for symbolic knowledge, Kiryakov and colleagues OntoMap portal [24] for mapping linguistic ontologies, the OBSERVER system [29] by Mena and colleagues for information integration, Gangemi and colleagues [15] ONIONS methodology for medical ontologies, Visser and Tamma s heterogeneity categorisation [36] and the reports from Pinto and colleagues [31] and Fridman Noy and Hafner in [12] 7 Summary In this paper we ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In N. Guarino, editor, Proceedings of the 1st International Conference on Formal Ontology in Information Systems (FOIS'98), Trento, Italy, pages 269-283. IOS Press, June 1998.

....allows to query all three components, concepts, annotations, and Web accessible documents in a uniform fashion. A second class of approaches in this context focuses on information integration by combining query or mediator systems and domain models ontologies. For example, in the OBSERVER system [20], metadata and ontologies represent knowledge about the vocabularies used in the sources and are utilized to handle heterogeneity for query processing. In the SCOPE system [23] semantic relationships between schema elements of different sources are identified using ontologies and exploited for ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In International Conference on Formal Ontologies in Information Systems (FOIS'98), Trento (Italy), pages 269--283, 1998.

....while by using a thesaurus synonym and hyponym relations are provided by domain experts. For communication between different application domains, coefficients of the thesaurus entries must be set by experts in both application domains. The Inter Ontology Relationships Manager module in OBSERVER [14] maintains the same relations between ontological definitions as presented in [1] By means of inter ontology relations, OBSERVER replaces terms in user queries with suitable terms in target ontologies. Projects such as SHOE and On2Broker use formal ontologies as the basis for search engines on ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Nicola Guarino, editor, Formal Ontology in Information Systems. IOS press, 1998.

....For the representation and exchange of this context information [4] we use metadata. 2 The interpretation of the metadata requires the introduction of a shared vocabulary to reach a common understanding with regard to a given domain. Such a vocabulary is provided by a domain specific ontology [2, 5]. An explicit description of the relationships between the data of a given source and the represented real world phenomenon is established by a reference to the underlying ontology, i.e. by mapping local representation types and terms to semantically corresponding ontology concepts, and adding ....

Mena, E.; Kashyap, V.; Illarramendi, A.; Sheth, A.: Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure, Proc. Int'l. Conf. on Formal Ontology in Information Systems, Trento, Italy, 1998

.... process knowledge sharing [7] with the meta level information required for emergence and adaptation: Work on Differentiated Vocabulary for knowledge sharing between groups with partially shared ontologies [8] NIST s Process Specification language project [9] and semantic interoperability [10] 3. Cooperating e commerce processes are primarily business relationships and are ultimately constrained to a greater degree than many cooperative processes which operate internally to a single organization and which do not explicitly involve trade (which is always implicitly subject to ....

Mena, E., V. Kashyap, V., Illarramendi, A. Sheth (1998), Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure, Intl. Conf. on Formal Ontology in Information Systems (FOIS'98), Treno, Italy

....of semantic identity which provides a prerequisite for the integration of semantic objects that represent the same real world phenomenon. 2. 1 Ontologies as a Common Interpretation Basis To ensure a semantically correct interpretation of the available metadata we use domain specific ontologies [MMS98, MKIS98]. An ontology provides an agreement about a shared conceptualization of a given application domain [Grub95, Guar96] The concepts specified in the ontology provide a common vocabulary for which no further negotiation concerning their meaning is necessary. In addition, the ontology provides ....

....as a common basis for the interpretation of context information in the form of metadata. We assume a tight coupling of di#erent ontologies by assembling them following the module based approach described in [FFR96] A more loose approach of correlating di#erent ontologies has been discussed in [MKIS98]. In an ideal situation, all instances that make use of data and metadata from a given domain should adhere to the corresponding ontology. In an imperfect real world, we must allow ontologies on consumer side that are tailored to specific needs and provide for extensibility of the model. ....

Mena, E.; Kashyap, V.; Illarramendi, A.; Sheth, A.: Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure, In: Proceedings of the International Conference on Formal Ontology in Information Systems, Trento, Italy, 1998

.... In particular, its importance is being recognized in research fields as diverse as knowledge engineering [20,45,15,18] knowledge representation [23,2,42] qualitative modelling [19,9,13] language engineering [31,5] database design [11,47] information modelling [3,53] information integration [55,7,35], object oriented analysis [51,39] information retrieval and extraction [24,6,34,54] knowledge management and organization [40] agent based systems design 1 . Current applications areas are disparate, including enterprise integration [22,46] natural language translation [30,33] medicine ....

Mena, E., Kashyap, V., Illarramendi, A., and Sheth, A. 1998. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In N. Guarino (ed.) Formal Ontology in Information Systems. IOS Press (this volume).

....can be provided as first class information to the user of an auction site, who in turn may react appropriately. 4. Using Ontologies for Semantically Meaningful Data Exchange To represent notifications, message content, or data in general, in an unambiguous way, we use domain specific ontologies [29, 31]. An ontology provides an agreement about a shared set of terms, or concepts, of a given subject domain [23] The concepts given in the ontology provide a common vocabulary for which no further negotiation concerning their meaning is necessary. In this way, an ontology can serve as a common basis ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In Proceedings of the International Conference on Formal Ontology in Information Systems, Treno, Italy, 1998.

....of generic ontologies. Finally, encoded knowledge in domain dependent ontologies helps us to disambiguate concepts and to choose those which are most relevant for audio objects. 27 Ontologies are usually constructed by a domain expert, someone who has mastery over the specific content of a domain [66]. During the construction of ontologies the following points are kept in mind [40] Ontologies should be: Open and dynamic: Ontologies should have fluid boundaries and be readily capable of growth and modification. Scalable and inter operable: An ontology should be easily scaled to a wider ....

....in what is sure to be a rapidly changing environment. We would like, rather, 105 to build ontology that is easy to update, open and dynamic both algorithmically and structurally for easy construction and modification, and fully capable of adapting to changes and new developments in a domain [66]. For example, suppose player Bryant Kobe switches from team Los Angeles Lakers to team Portland Trail Blazers. In this case, we need to remove the interrelationship link between concepts Bryant Kobe and Los Angeles Lakers and add a new link between the concepts Bryant Kobe and ....

E. Mena, V. Keshyap, A. Illarramendi, and A. Sheth, "Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure," in Proc. of International Conference on Formal Ontologies in Information Systems (FOIS'98), June 1998.

....development and in the production phases of a system. The translation targets can be representations as CORBA interface definition language (IDL) OMG 1991) Prolog (Clocksin and Mellish 1981) Epikit (Genesereth 1990) and KIF. 2.3. 2 OBSERVER OBSERVER (Kashyap and Sheth 1996; Mena et al. 1996; Mena et al. 1998) is an architecture for query processing in global information systems that supports interoperation across ontologies. OBSERVER focuses on information content and semantics, and employs a loosely coupled approach to match different vocabularies used to describe similar information across domains. ....

.... approaches that allow composition of pre existing independent developed ontologies, for instance, through the use of a context algebra to compose diverse ontologies (Wiederhold and Jannink 1999) and the matching of synonym, hyponym and hypernym terms (Kashyap and Sheth 1996; Mena et al. 1996; Mena et al. 1998). ACKNOWLEDGMENTS This work was partially supported by the National Science Foundation under NSF grant numbers SBR 9700465 and IIS 9970123. Max Egenhofer s research is further supported by NSF grants IRI 9613646, BDI 9723873, and EIA 9876707; by the National Imagery and Mapping Agency under ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth (1998) Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. in: N. Guarino (Ed.), Formal Ontology in Information Systems. pp. 269-283, IOS Press, Amsterdam, The Netherlands.

....important role in enabling information and knowledge sharing. A further study should examine how to incorporate approaches that allow composition of preexisting independently developed ontologies as [32] where a context algebra is proposed to compose diverse ontologies, and the OBSERVER system [33 35], where ontologies are matched using synonym, hyponym and hypernym. This is an early work and the translation of sophisticated structures like ontologies into classes is a delicate operation. Although systems like Ontolingua [17] suggests that such a mapping can be the answer, further study is ....

Mena, E., Kashyap, V., Illarramendi, A., and Sheth, A., "Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure," in Formal Ontology in Information Systems, N. Guarino, Ed. Amsterdam: IOS Press, 1998, pp. 269-283.

....and it is a specialization of a domain ontology and a task ontology [17] The use of ontologies as a support for interoperability is discussed in the next section, where the proposed architecture for an ODGIS is presented. A detailed analysis of ontologies and interoperability can be found in [25, 42]. 3. ONTOLOGY DRIVEN GEOGRAPHIC INFORMATION SYSTEM An object oriented view of the world is useful to represent geographic entities. Object technology can be used as a tool for promoting interoperability. Interoperable geographic objects can be held in a container. Since objects carry both ....

Mena, E., Kashyap, V., Illarramendi, A., and Sheth, A., "Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure," in Formal Ontology in Information Systems, N. Guarino, Ed. Amsterdam, Netherlands: IOS Press, 1998.

....guidance when formulating queries. Lastly, the info agent uses ontologies to extract facts, i.e. to translate from the original sources into the conceptual model of the system. This is true regardless of the document type of input, i.e. HTML A, RDF, or XML. In a similar way the Observer system [19] uses ontologies to access and 7 integrate information stored in distributed and independent databases. The architecture illustrates that the info agent abstracts from the concrete realization of the information resources. The kind of resource is irrelevant for all other components of the ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth, Domain specific ontologies for semantic information brokering on the global information infrastructure, N. Guarino, ed. Formal Ontology in Information Systems. IOS Press, 1998.

....the effectiveness of traditional querying and search techniques, especially in the light of the overwhelming growth rate of the Web. However, the emerging vision of the Semantic Web [3] and the related earlier efforts for semantic interoperability including Semantic Information Brokering [13][9] promise to enable newer and better techniques for reasoning about the meaning of content. In the Semantic Web, machine processable meaning of content will be made explicit by enabling documents to be meaningfully marked up with ontological terms. Thus, ontologies have been identified as a ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In International Conference on Formal Ontologies in Information Systems (FOIS'98), Trento (Italy), pages 269--283, 1998.

....In this paper we explain in detail the combined translation process, where translations without loss represent highly simplified cases of translations with loss. Preliminary work on the process of query translations across multiple ontologies and measuring the loss of information was presented in [27]. This paper significantly extends on the early direction presented in that paper and presents the complete framework, detailed query processing involving the use of multiple ontologies, inter ontology relationships and estimation of loss of information. A detailed description of techniques for ....

....answers, the only way to enrich the answer is to visit more ontologies looking for a new full translation. We now present an interesting theorem which enables us to determine when a combination of partial translations is logically equivalent to a query. The theorem has been rigorously proved in [27]. Theorem: Given a user query Q and a set of partial translations of that query, if the intersection of the non translated parts is empty then the intersection of the objects of the translated parts will satisfy all the constraints in Q. In the [28] we presented an algorithm which, given a new ....

E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Proc. of the International Conference on Formal Ontologies in Information Systems (FOIS'98). Trento (Italy), June 1998.

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E. Mena, V. Kashyap, A. Sheth, and A. Illarramendi. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Proceedings of the First International Conference on Formal Ontologies in Information Systems. Trento, Italy. June 1998.

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Mena, E.; Kashyap, V.; Illarramendi, A.; Sheth, A.: Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure, In: Proceedings of the International Conference on Formal Ontology in Information Systems, Trento, Italy, 1998

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Mena, E., Kashyap, V., Illarramendi, A., Sheth, A.: Domain specific ontologies for semantic information brokering on the global information infrastructure. In: Intl. Conf. on Formal Ontology in Information Systems, Trento, Italy (1998)

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Nicola Guarino, editor, Formal Ontology in Information Systems. IOS press, 1998.

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Mena, E., Kashyap, V., Illarramendi, A., Sheth, A.: Domain specific ontologies for semantic information brokering on the global information infrastructure. In: Intl. Conf. on Formal Ontology in Information Systems, Trento, Italy (1998)

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure. In N. Guarino, editor, Proceedings of the 1st International Conference on Formal Ontology in Information Systems(FOIS'98), Trento, Italy, pages 269--283. IOS Press, June 1998.

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth, "Domain Specific Ontologies for Semantic Information Brokering on the Global Information Infrastructure," in Formal Ontology in Information Systems, N. Guarino, Ed. Amsterdam: IOS Press, 1998, pp. 269-283.

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In N. Guarino, editor, Formal Ontology in Information Systems, volume 46 of Frontiers in Artificial Intelligence and Applications, pages 269--283. IOS Press, 1998.

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In Nicola Guarino, editor, Formal Ontology in Information Systems. IOS press, 1998.

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E. Mena, V. Kashyap, A. Illarramendi, and A. Sheth. Domain specific ontologies for semantic information brokering on the global information infrastructure. In N. Guarino, editor, Formal Ontology in Information Systems. IOS press, 1998.

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