20 International Journal of Web Applications  Volume 1 Number 1  March 2009 TBL2RDF: HTML Table to RDF Translator V.Kiran Kumar 1 , K.Rajasekhara Rao 2 1 Computer Science Department Dravidian University Kuppam – 517 425. India kirankumar.v@rediffmail.com 2 Koneru Lakshmaiah College of Engineering Green Fields, Vaddeswaram 522502 Guntur Dt., Andhra Pradesh India krr_it@yahoo.co.in ABSTRACT: There is a large quantity of data available on the web, which is designed in HTML table format. Due to lack of machine-understandable information, these data cannot be processed by machines. This paper describes a TRANSLATOR, a tool designed as Java application to allow anyone, even non-experts, to design their data in HTML table format for use on the Semantic Web. This is accomplished by automatically translating data written in HTML table format into the Resource Description Framework Schema (RDFS). XML representation in RDF has several advantages, among them is compatible with existing Semantic Web standards. Keywords: World Wide Web (WWW), Resource Description Framework (RDF), Resource Description Framework Schema (RDFS), Ontology. Received: 14 October 2008. Revised 19 November 2008. Accepted 2 December 2008 © 2009 D-line. All rights reserved. 1. Introduction The goal of the semantic web is that web-based agents can process and “understand” data rather than merely display them as present. There is a large quantity of data available in the web, which is designed with HTML tables. Due to lacking of machine understandable information, these data cannot be used by web-based agents or machines. RDF is a language representing resources on the web, which can be processed by machines rather than just displaying them. Hence, a tool was designed which extends syntactic HTML tables into RDF files. The main advantage of using this tool is that, a layman with little knowledge on RDF can easily create RDF documents by simply designing his data in HTML table format. There is a number of automated conversion tools available to convert application specific format into RDF to use RDF tools and for integration with other data, such as D2RQ, java2rdf, javadoc2rdf, Esxcel2rdf etc., but the tool which is presented here is designed as a java application and it takes HTML file containing table as input and produces RDFS ontology. As there is much data available on web pages in a table format, this tool will be helpful for converting said data into RDF ontology. The rest of the paper is organized as follows: Section 2 describes a brief description about Resource Description Framework (RDF) and RDFS. Section 3 discusses HTML tables. Section 4 discusses the tool architecture and its prototype. Section 5 explains the tool with a scenario and finally Section 6 concludes and explains the future work of the tool.