3.2 cQA Features and Contextual Modeling
detailed description of their feature designs for sites
and edges embedded in discussion thread structures.
In this section, we give a detailed description of
However there is no previous work that explores the
the different sentence-level cQA features and the
complex multi-sentence question segmentation and
contextual modeling between sentences used in our
its contextual modeling for community answer sum-
model for answer summarization.
marization.
Sentence-level Features
Some other works examined the evaluation of the
quality of features for answers extracted from cQA
Different from the conventional multi-document
summarization in which only the textual features are
services (Jeon et al., 2006; Hong and Davison ,
utilized, we also explore a number of non-textual
2009; Shah et al., 2010). In the work of Shah et
al.(2010), a large number of features extracted for
author related features (Shah et al., 2010) in cQAs.
The textual features used are:
portant than others. We also expect that some fea-
ture may be redundant when their most related fea-
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