Valverde Albacete, Francisco JoséCarrillo de Albornoz, JorgePeláez Moreno, Carmen2015-09-072015-09-072013Forner, P., et al. (eds.) (2013). Information Access Evaluation. Multilinguality, Multimodality, and Visualization: 4th International Conference of the CLEF Initiative, CLEF 2013, Valencia, Spain, September 23-26, 2013. Proceedings. (pp. 41-52). (Lecture Notes in Computer Science; 8138). Springer Berlin Heidelberg.978-3-642-40801-4 (print)978-3-642-40802-1 (online)0302-9743 (print)1611-3349 (online)https://hdl.handle.net/10016/21530Proceedings of: 4th International Conference of the CLEF Initiative (CLEF 2013). 4th International Conference of the CLEF Initiative (CLEF 2013). Valencia, Spain, September 23-26, 2013.In this paper we propound the use of a number of entropybased metrics and a visualization tool for the intrinsic evaluation of Sentiment and Reputation Analysis tasks. We provide a theoretical justification for their use and discuss how they complement other accuracybased metrics. We apply the proposed techniques to the analysis of TASS-SEPLN and RepLab 2012 results and show how the metric is effective for system comparison purposes, for system development and postmortem evaluation.12application/pdfeng© 2013 Springer-Verlag Berlin HeidelbergSentiment AnalysisReputation AnalysisEvaluation MetricsNormalized Information TransferEntropy-Modified Accuracyconference paperTelecomunicaciones10.1007/978-3-642-40802-1_5open access4152Information Access Evaluation. Multilinguality, Multimodality, and Visualization : 4th International Conference of the CLEF Initiative, CLEF 2013, Valencia, Spain, September 23-26, 2013. ProceedingsCC/0000020970