This paper presents a new version of the DIOGENE Question Anszering (QA) system developed at ITC-Irst. With respect to our first participation to the TREC QA main task (TREC-2001), the system presents both improvements and extensions. On one hand, significant improvements rely on the substitution of basic components (e.g. the search engine and the tool in charge of the named entities recognition) with new modules that enhanced the overall system`s performance. On the other hand, an effective extension of DIOGENE is represented by the introduction of a module for the automatic assessment of the candidate answers` quality. All the variations with respect to the first version of the system as well as the results obtainded at the TREC-2002 QA main task are presented and discussed in the paper
Mining Knowledge from Repeated Co-orrurrences: DIOGENE at TREC-2002
Magnini, Bernardo;Negri, Matteo;Prevete, Roberto;Tanev, Hristo
2002-01-01
Abstract
This paper presents a new version of the DIOGENE Question Anszering (QA) system developed at ITC-Irst. With respect to our first participation to the TREC QA main task (TREC-2001), the system presents both improvements and extensions. On one hand, significant improvements rely on the substitution of basic components (e.g. the search engine and the tool in charge of the named entities recognition) with new modules that enhanced the overall system`s performance. On the other hand, an effective extension of DIOGENE is represented by the introduction of a module for the automatic assessment of the candidate answers` quality. All the variations with respect to the first version of the system as well as the results obtainded at the TREC-2002 QA main task are presented and discussed in the paperI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
