Questioner or question: Predicting the response rate in social question and answering on Sina Weibo
作者：
Highlights：
• Address the problem of low response rate in social Q&A that happens on a Chinese microblogging site.
• Propose 17 factors from both the questioner and the question's perspectives and investigate their effectiveness in determine whether or not a question will be answered.
• Build a model to differentiate questions with high probabilities of being responded from those with low probabilities of being answered, which achieved a prediction accuracy of 74%.
• Our results show that whether or not a question will be answered depend more on the questioner than the question.
• Propose the potential implication of improving visibility of users with low social capital to increase their question's response probability.
摘要
•Address the problem of low response rate in social Q&A that happens on a Chinese microblogging site.•Propose 17 factors from both the questioner and the question's perspectives and investigate their effectiveness in determine whether or not a question will be answered.•Build a model to differentiate questions with high probabilities of being responded from those with low probabilities of being answered, which achieved a prediction accuracy of 74%.•Our results show that whether or not a question will be answered depend more on the questioner than the question.•Propose the potential implication of improving visibility of users with low social capital to increase their question's response probability.
论文关键词：Social Q&A,Social network,Information seeking,Weibo
论文评审过程：Received 22 June 2015, Revised 22 September 2017, Accepted 11 October 2017, Available online 20 November 2017, Version of Record 20 November 2017.
论文官网地址：https://doi.org/10.1016/j.ipm.2017.10.004
