On performance of topical opinion retrieval

Authors:
Giambattista Amati;Giuseppe Amodeo;Valerio Capozio;Carlo Gaibisso;Giorgio Gambosi
Affiliations:
Fondazione Ugo Bordoni, Rome, Italy;University of L'Aquila, Rome, Italy;University of Rome 'Tor Vergata', Rome, Italy;IASI - CNR, Rome, Italy;University of Rome 'Tor Vergata', Rome, Italy
Venue:
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Year:
2010

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Abstract

We investigate the effectiveness of both the standard evaluation measures and the opinion component for topical opinion retrieval. We analyze how relevance is affected by opinions by perturbing relevance ranking by the outcomes of opinion-only classifiers built by Monte Carlo sampling. Topical opinion rankings are obtained by either re-ranking or filtering the documents of a first-pass retrieval of topic relevance. The proposed approach establishes the correlation between the accuracy and the precision of the classifier and the performance of the topical opinion retrieval. Among other results, it is possible to assess the effectiveness of the opinion component by comparing the effectiveness of the relevance baseline with the topical opinion ranking.