Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topic Segmentation and Labeling in Asynchronous Conversations   Topic segmentation and labeling is often considered a prerequisite for
higher-level conversation analysis and has been shown to be useful in many
Natural Language Processing (NLP) applications. We present two new corpora of
email and blog conversations annotated with topics, and evaluate annotator
reliability for the segmentation and labeling tasks in these asynchronous
conversations. We propose a complete computational framework for topic
segmentation and labeling in asynchronous conversations. Our approach extends
state-of-the-art methods by considering a fine-grained structure of an
asynchronous conversation, along with other conversational features by applying
recent graph-based methods for NLP. For topic segmentation, we propose two
novel unsupervised models that exploit the fine-grained conversational
structure, and a novel graph-theoretic supervised model that combines lexical,
conversational and topic features. For topic labeling, we propose two novel
(unsupervised) random walk models that respectively capture conversation
specific clues from two different sources: the leading sentences and the
fine-grained conversational structure. Empirical evaluation shows that the
segmentation and the labeling performed by our best models beat the
state-of-the-art, and are highly correlated with human annotations.

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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: astro-ph