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  1. Proceedings of the 3rd international workshop on Search and mining user-generated contents (SMUC '11)
  2. Improved answer ranking in social question-answering portals
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The challenge of understanding the flow of sentiments in social media documents
Trend-based and reputation-versed personalized news network
Improved answer ranking in social question-answering portals
Analysis of communities in social media
Predicting age and gender in online social networks
"I'm eating a sandwich in Glasgow": modeling locations with tweets
A comparative evaluation of personality estimation algorithms for the twin recommender system
Detection of near-duplicate user generated contents: the SMS spam collection
Characterizing Wikipedia pages using edit network motif profiles
Mining tweets for tag recommendation on social media
Mining tag similarity in folksonomies
ThemeCrowds: multiresolution summaries of twitter usage
On the generation of rich content metadata from social media

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Improved answer ranking in social question-answering portals

Content Provider ACM Digital Library
Author Hieber, Felix Riezler, Stefan
Abstract Community QA portals provide an important resource for non-factoid question-answering. The inherent noisiness of user-generated data makes the identification of high-quality content challenging but all the more important. We present an approach to answer ranking and show the usefulness of features that explicitly model answer quality. Furthermore, we introduce the idea of leveraging snippets of web search results for query expansion in answer ranking. We present an evaluation setup that avoids spurious results reported in earlier work. Our results show the usefulness of our features and query expansion techniques, and point to the importance of regularization when learning from noisy data.
Starting Page 19
Ending Page 26
Page Count 8
File Format PDF
ISBN 9781450309493
DOI 10.1145/2065023.2065030
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2011-10-28
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Social search and ranking algorithms Query expansion Community question answering
Content Type Text
Resource Type Article
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