Giseop Noh

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In recent years, electronic commerce and online social networks (OSNs) have experienced fast growth, and as a result, recommendation systems (RSs) have become extremely common. Accuracy and robustness are important performance indexes that characterize customized information or suggestions provided by RSs. However, nefarious users may be present, and they(More)
There is no doubt on the popularity of online social networks (OSNs) nowadays. With the exponential growth of the OSNs, various recommender systems (RSs) are widely deployed onto the OSNs. The RSs provide users with customized information to the RSs' users. Meanwhile, nefarious users attempt to compromise the RSs at the same time. There have been a lot of(More)
Information visualization with the movie's trend of audiences and reviews becomes important. Movie makers are not only want to know their movie's popularity based on the number of audiences but also check their movie's evaluation from people who see the movies. If they hope that the movie is a box office hit, they should identify the correlations between(More)
In the last decade we have witnessed the explosive growth of online social networking services (SNSs) such as Facebook, Twitter, RenRen and LinkedIn. While SNSs provide diverse benefits for example, forstering inter-personal relationships, community formations and news propagation, they also attracted uninvited nuiance. Spammers abuse SNSs as vehicles to(More)
With the explosive growth of online social networks (OSNs), the social commerce and online stores facilitating recommender systems (RSs) are a popular way of providing users customized information such as friends, books, goods, and so on. The major function of RSs is recommending items to their system users (i.e., potential consumers), however, malicious(More)
In recent years, electronic commerce and online social networks (OSNs) have experienced fast growth, and as a result, recommendation systems (RSs) have become extremely common. Accuracy and robustness are important performance indexes that characterize customized information or suggestions provided by RSs. However, nefarious users may be present, and they(More)
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