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Keyword-Based Queries to Access Relational Databases on the Web

  • Speaker: Dr. João Carlos da Silva, Informatics Institute, Federal University of Goiás, Brazil.
  • Date: Thursday, 12 February 2015 from 16:00 to 17:00
  • Location: Room 151, Birkbeck Main Building

The Web is the main channel for circulating information in modern society. As a simple and effective technique, keyword-based querying has proved ideal for this purpose and has become the interaction standard between users and the Web. However, most of the information found in the world is currently stored in relational databases, and such repositories offer limited support for keyword-based queries. Performing queries in relational databases requires knowledge of storage structures and syntax of a structured language, and both are not familiar to the majority of users.

In this talk, I will discuss some issues related to accessing data stored in relational databases that might be scattered and available in the world, using an interface that is common to Web searches. I will present a method that integrates search and selection of available relational databases, as well as semantic query processing to retrieve relevant information.

I will also (briefly) introduce some protocols that were used in the present research to define and expose the metadata needed to make relational databases available and searchable on the Web.

The talk is based on many works carried out by many people, and is therefore not limited to my own research.

Short bio: Dr. João Carlos da Silva is an Associate Professor at the Informatics Institute, Federal University of Goiás, Brazil, where he has been working since the start of his university career. He received a Ph.D. degree in Computer Science from the University of East Anglia in 1996. His research interests include Keyword-Based Query Processing to Access Relational Databases, Ontology-Based Query Interpretation, Data Integration, Schema Integration, and Conceptual Modeling.