General Strategy for Querying Web Sources in a Data Federation Environment

Firat, Aykut; Wu, Lynn; Madnick, Stuart E.

doi:10.4018/978-1-60566-982-3.ch134

Cited by 1 publication

(1 citation statement)

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“…The warmers are physical and logical gateways providing uniform access to the disparate sources over the network [3,8,9]. The set of Context Mediation Services, comprises a…”

Section: A Better Way: the Context Interchange Approachmentioning

confidence: 99%

Information integration for counter terrorism activities: requirements for context mediation

Choucri¹,

Madnick²,

Moulton³

et al.

2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720)

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The National Research Council has noted that "[Allthough there are many private and public databases that contain information potentially relevant to counterterrorism programs, they lack the necessary context definitions (i.e., metadata) and access tools to enable interoperation with other databases and the extraction of meaningful and timely information." In this paper we present examples of these problems and a technology developed at MIT, called context mediation, which provides a novel approach for addressing these problems.information3". This report clearly recognized the important problem that the semantic data integration research community has been studying.Context Mediation technology addresses this problem and deals directly with the integration of heterogeneous contexts (i.e. data meaning) in a flexible, scalable and extensible environment. This approach makes it easier and more transparent for receivers (e.g., applications, sensors, users) to exploit distributed sources (e.g., databases, web, 1. 2. 3. 4. 5. 6. information repositories, sensors). Receivers are able to TABLE OF CONTENTSspecify their desired context so that there will be no uncertainty in the interpretation of the information coming from heterogeneous sources. The approach and associated tools significantly reduce the overhead involved in the integration of multiple sources and simplifies maintenance in an environment of changing source and receiver context.

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“…The warmers are physical and logical gateways providing uniform access to the disparate sources over the network [3,8,9]. The set of Context Mediation Services, comprises a…”

Section: A Better Way: the Context Interchange Approachmentioning

confidence: 99%