A Scattered Portable Question and Answering Scheme Established Upon Informative Networks
Alluri Praveen, B. Sudhakar · 2015
Question and Answer (Q&A)system based on social networking creases more attention recently. The social-based Q&A systems answer non-factual questions, which cannot be simply committed by web search engines .These systems either rely on a centralized server for identifying friends based on social information or broadcast a user's questions to all of its friends .Mobile Q&A systems, where mobile nodes access the Q&A systems through internet, are very promising considering the rapid increase of mobile users and the handiness of practical use .However, such systems can not directly use the previous centralized methods or broadcasting methods ,which produce high price of mobile internet access ,node overload ,and high server bandwidth cost with the tremendous number of mobile users .We propose a distributed social- based mobile Q&A system with low overhead and system cost as well as quick response to question askers .It assists mobile users to forward questions to probable answerers in their friend lists in a decentralized manner for a number of hops before restoring to the server. It influences trivial knowledge engineering techniques to precisely identify friends who are able to and willing to answer questions, thus reducing the search and computation costs of mobile nodes. The trace- driven simulation results show that Q&A system can achieve high query accuracy and recall rate, a short response potential and low overhead.