Sentiment and Behaviour Annotation in a Corpus of Dialogue Summaries

Norton Trevisan Roman (University of São Paulo, Brazil)

Paul Piwek (The Open University, United Kingdom)

Ariadne Maria Brito Rizzoni Carvalho (University of Campinas, Brazil)

Alexandre Rossi Alvares (University of São Paulo, Brazil)

Abstract: This paper proposes a scheme for sentiment annotation. We show how the task can be made tractable by focusing on one of the many aspects of sentiment: sentiment as it is recorded in behaviour reports of people and their interactions. Together with a number of measures for supporting the reliable application of the scheme, this allows us to obtain sufficient to good agreement scores (in terms of Krippendorf's alpha) on three key dimensions: polarity, evaluated party and type of clause. Evaluation of the scheme is carried out through the annotation of an existing corpus of dialogue summaries (in English and Portuguese) by nine annotators. Our contribution to the field is twofold: (i) a reliable multi-dimensional annotation scheme for sentiment in behaviour reports; and (ii) an annotated corpus that was used for testing the reliability of the scheme and which is made available to the research community.

Keywords: automatic dialogue summarisation, computational linguistics, corpus annotation, natural language processing, sentiment analysis

Categories: I.2.7, L.1.3