Annotating Question Types in Social Q&A Sites

In all domains, including eHumanities, it is crucial to understand how people seek information and what kinds of questions they ask. In this paper, we present an annotation study of domain-specific questions collected from the current leading social Question and Answer site, namely Yahoo! Answers. We define an annotation scheme with 9 question types and additional attributes to identify unclear and opinion questions. We show that annotating questions extracted from social media content is a difficult task due to errors and ambiguities in question formulations. However, we obtain good to very good inter-annotator agreement on all but one of the defined question types.
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