ANALIZA TECHNIK SEMANTYCZNEGO WYSZUKIWANIA DANYCH.

The article presents the analysis of available semantic search engines and their functionalities. Hence the major problematic areas of knowledge acquisition from web resources were described in details. The general statements of Semantic Web 3.0 was presented. Next, in this area, the four semantic search engines were selected: Swoogle, Yahoo SearchMonkey, iGoorg and WolframAlpha. On base of presented analysis of semantic search engines the set of criteria and sub-criteria was identified for each of a given solution. Thus it was a base for a taxonomic relationships creation between presented search engines. Moreover it determines the real areas of effective exploitation of each of presented solutions. [ABSTRACT FROM AUTHOR]