Browsing by Author "Jiao, Jian"

Now showing 1 - 3 of 3
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    A framework for finding and summarizing product defects, and ranking helpful threads from online customer forums through machine learning
    Jiao, Jian (Virginia Tech, 2013-06-05)
    The Internet has revolutionized the way users share and acquire knowledge. As important and popular Web-based applications, online discussion forums provide interactive platforms for users to exchange information and report problems. With the rapid growth of social networks and an ever increasing number of Internet users, online forums have accumulated a huge amount of valuable user-generated data and have accordingly become a major information source for business intelligence. This study focuses specifically on product defects, which are one of the central concerns of manufacturing companies and service providers, and proposes a machine learning method to automatically detect product defects in the context of online forums. To complement the detection of product defects , we also present a product feature extraction method to summarize defect threads and a thread ranking method to search for troubleshooting solutions. To this end, we collected different data sets to test these methods experimentally and the results of the tests show that our methods are very promising: in fact, in most cases, they outperformed the current state-of-the-art methods.
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    A Pattern Analysis of Gene Conversion Literature
    Lawson, Mark J.; Jiao, Jian; Fan, Weiguo; Zhang, Liqing (Hindawi, 2009-11-15)
    Gene conversion is an important biological process that involves the transfer of genetic (sequence) information from one gene to another. This can have a variety of effects on an organism, both short-term and long-term and both positive and detrimental. In an effort to better understand this process, we searched through over 3,000 abstracts that contain research on gene conversions, tagging the important data and performing an analysis on what we extract. Through this we established trends that give a better insight into gene conversion research and genetic research in general. Our results show the importance of the process and the importance of continuing gene conversion research.
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    Web Archiving
    Lee, Spencer; Kanan, Tarek; Jiao, Jian (2009-10-09)
    This module covers the ideas, approaches, problems and needs of web archiving to build a static and long term collection consisting of web pages.