Weikeng Chen

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Crowd-selection is essential to crowdsourcing applications, since choosing the right workers with particular expertise to carry out specific crowdsourced tasks is extremely important. The central problem is simple but tricky: given a crowdsourced task, who is the right worker to ask? Currently, most existing work has mainly studied the problem of(More)
Effective detection of botnet traffic becomes difficult as the attackers use encrypted payload and dynamically changing port numbers (protocols) to bypass signature based detection and deep packet inspection. In this paper, we build a normal profiling-based botnet detection system using three unsupervised learning algorithms on service-based flow-based(More)
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