2 CQA FEATURES AND CONTEXTUAL MODELINGDETAILED DESCRIPTION OF THEIR...

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-