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Given a large online network of online auction users and their histories of transactions, how can we spot anomalies and auction fraud? This paper describes the design and implementation of NetProbe, a system that we propose for solving this problem. NetProbe models auction users and transactions as a Markov Random Field tuned to detect the suspicious(More)
Given a huge online social network, how do we retrieve information from it through crawling? Even better, how do we improve the crawling performance by using parallel crawlers that work independently? In this paper, we present the framework of parallel crawlers for online social networks, utilizing a centralized queue. To show how this works in practice, we(More)
Emergency department (ED) electronic tracking boards provide a snapshot view of patient status and a quick link to other clinical applications, such as a web-based image viewer client to view current and previous radiology images from the picture archiving and communication systems (PACS). We describe a case where an update to Microsoft Internet Explorer(More)
In 2004, the White House and then Congress determined there should be an “Information Sharing Environment” that facilitates the flow of critical information for counterterrorism, related law enforcement, and disaster management activities. That work has been progressing but a major challenge is how to create technologies that: ensure compliance with laws(More)
In 2004, the White House and then Congress determined there should be an “Information Sharing Environment” that facilitates the flow of critical information for counterterrorism, related law enforcement, and disaster management activities. That work has been progressing but a major challenge is how to create technologies that: ensure(More)
Motion planning for unmanned ground vehicle on rough terrain has been an active research topic for a long time. One of the main challenges comes from the complexity of the off-road field environment. In this project, we aimed to propose a motion planner for a full-size all-terrain vehicle (ATV) for the application of off-road autonomous navigation. More(More)
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