AIC Seminar Series

Activities such as Web Services and the Semantic Web aim to create a web of machine readable data, i.e., a Data Web. A number of problems need to be solved to realize this vision. In this paper, we address some of these problems. We discuss the problem of scalable and deployable query systems and present a simple, but general query interface called GetData. We discuss the problem of creating global agreements on vocabularies and introduce the concept of Semantic Negotiation, a process by which two programs can bootstrap from small shared vocabularies to larger shared vocabularies. We describe TAPache, a system that implements the GetData interface and Semantic Negotiation. We then introduce an application of the Data Web called Semantic Search and describe an implemented system which uses the Data Web to augment traditional web searches with results from the Data Web, based on the denotation of the search query.

R.V.Guha has been working in the area of Semantics for about 15 years. He was a co-director of the Cyc project from '87 to '94. Then, at Netscape he helped create RDF, which is now the core standard behind the Semantic Web initiative. He is currently a researcher at IBM Almaden. He has PhD in computer science from Stanford.

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