Analysis and comparison of information retrieval systems

V diplomskem delu se je analiziralo in primerjalo manjšo množico sistemov za informacijsko poizvedovanje. Raziskava se je osredotočila na iskanje po besedilu, kjer se uporabi procesiranje naravnega jezika. Izbrani sistemi so bili primerjani glede na način delovanja, indeksiranja, poizvedovanja ter časovne in prostorske lastnosti. Za primerjavo se je pridobilo korpuse besedil in definiralo poizvedbe s katerimi se je primerjalo izbrane sisteme. V zaključku so podane prednosti in slabosti sistemov skupaj s primeri uporabe.The thesis analyzed and compared a small number of information retrieval systems. The research was focused on text search using natural language processing. The selected systems were compared according to the mode of operation, indexing, querying and temporal and spatial properties. For comparison corpora of texts was obtained and queries were defined with which the selected systems were compared.In the conclusion, the advantages and disadvantages of the systems are given together with examples of use