Reformulate Query Using Ontology Terms Alone Deteriorate the Precision Value
Azilawati Azizan, Zainab Abu Bakar
Journal of Information Organization, Vol. 5, No. 2, 2015.
DOI: 
Link: http://www.dline.info/jio/fulltext/v5n2/v5n2_2.pdf
Abstract:
Most people think that searching information on Web is easy as long as you have Google with you. Yes it is true
indeed. But Google or any search engine can be very helpful if the user can express and transform their information need into
a correct query. The fact is user having a lot of problems to formulate such query. That is why user reformulates queries several
times for getting a more relevant set of results. The aim of this paper is to present evaluation of four different techniques
employed in query reformulation process. This work proposes the combination of ontology and important keyword to
reformulate new query. The experimental results shows that reformulation using ontology terms alone have incredibly
increases the recall and decreases the precision. But when the ontology terms combine with important keywords, it provides
better results than the other techniques.