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This article is a survey of methods for measuring agreement among corpus annotators. It exposes the mathematics and underlying assumptions of agreement coefficients, covering Krippendorff’s alpha as well as Scott’s pi and Cohen’s kappa; discusses the use of coefficients in several annotation tasks; and argues that weighted, alpha-like coefficients,(More)
To increase the interest and engagement of middle school students in science and technology, the InterFaces project has created virtual museum guides that are in use at the Museum of Science, Boston. The characters use natural language interaction and have near photoreal appearance to increase and presents reports from museum staff on visitor reaction.
Arrau is a new corpus annotated for anaphoric relations, with information about agreement and explicit representation of multiple antecedents for ambiguous anaphoric expressions and discourse antecedents for expressions which refer to abstract entities such as events, actions and plans. The corpus contains texts from different genres: task-oriented(More)
This paper (i) clarifies a number of points concerning coefficients of agreement; (ii) revisits the issue of bias discussed by Di Eugenio and Glass, showing that the difference due to bias between κ and π disappears as the number of annotators grows; (iii) fills a few gaps in the literature, e.g., by introducing a new coefficient called β, which generalizes(More)
Abstract. Conversational dialogue systems cannot be evaluated in a fully formal manner, because dialogue is heavily dependent on context and current dialogue theory is not precise enough to specify a target output ahead of time. Instead, we evaluate dialogue systems in a semi-formal manner, using human judges to rate the coherence of a conversational(More)
The Distress Analysis Interview Corpus (DAIC) contains clinical interviews designed to support the diagnosis of psychological distress conditions such as anxiety, depression, and post traumatic stress disorder. The interviews are conducted by humans, human controlled agents and autonomous agents, and the participants include both distressed and(More)
Much experimental work in psycholinguistics suggests that fully specified syntactic and semantic interpretations are obtained incrementally. The finding that intepretation takes place incrementally is very robust and underlies our own view of sentence processing as well; however, most of this work tends to test very simple interpretive judgments, and using(More)