The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic and morphological expansion of the query, the latter being very important in highly inflective languages, such as Serbian. Wordnets can also be used for adding another language to a query, if appropriate, thus making the query bilingual. Problems encountered in retrieving documents of interest are discussed and illustrated by examples. A brief description of resources is given, followed by an outline of the web tool which enables their integration. Finally, a set of examples is chosen in order...

• Type: Conference
• Year: 2008
• Where: LREC
• Authors: Cvetana Krstev, Ranka Stankovic, Dusko Vitas, Ivan Obradovic
• Keywords: Education, Human Language Technology, Lexical Resources, LREC 2008, Various Lexical Resources