Necessity of General Design Theory of Classification Retrieval System

Abstract

Necessity of General Design Theory of Classification Retrieval System is discussed, comparing Classification retrieval system (ex. Fterm retrieval system) and Keyword retrieval system (ex. Google, Yahoo), in order to search for the most necessary information rapidly and correctly in the internet society. Currently there is Fterm retrieval system in which the classifications are given beforehand, differently from Keyword retrieval system. The characteristic of this Fterm retrieval system lies in excluding the ambiguity of the keywords. Meanwhile the characteristic of Keyword retrieval system such as google or yahoo lies in thoroughly excluding giving the classifications beforehand. So Classification retrieval system (ex. Fterm retrieval system) and Keyword retrieval system (ex. Google, Yahoo) have utterly different design theory in 'giving the classifications beforehand' and 'keyword.' Especially the possibility for applying graph-theory is discussed in Necessity of General Design Theory of Classification Retrieval System in this paper.