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A common form of sarcasm on Twitter consists of a positive sentiment contrasted with a negative situation. For example, many sarcastic tweets include a positive sentiment, such as " love " or " enjoy " , followed by an expression that describes an undesirable activity or state (e.g., " taking exams " or " being ignored "). We have developed a sarcasm(More)
—We have implemented a social media data mining system capable of forecasting events related to Latin American social unrest. Our method directly extracts a small number of tweets from publicly-available data on twitter.com, condenses similar tweets into coherent forecasts, and assembles a detailed and easily-interpretable audit trail which allows end users(More)
Traditional disease surveillance systems suffer from several disadvantages, including reporting lags and antiquated technology, that have caused a movement towards internet-based disease surveillance systems. In-ternet systems are particularly attractive for disease outbreaks because they can provide data in near real-time and can be verified by individuals(More)
We demonstrate how one can generate predictions for several thousand incidents of Latin American civil unrest, often many days in advance, by surfacing informative public posts available on Twitter and Tumblr. The data mining system presented here runs daily and requires no manual intervention. Identification of informative posts is accomplished by applying(More)
Twitter has become one of the foremost platforms for information sharing. Consequently , it is beneficial for the consumers of Twitter to know the origin of a tweet, as it affects how they view and interpret this information. In this paper, we classify tweets based on their origin, exploiting only the textual content of tweets. Specifically, using a rich,(More)
Electronic medical records contain a wealth of information that is potentially invaluable to many interested parties. However, the fact that most of these documents are of semi-structured nature and are comprised of fragmented English free text, region-specific templates and clinical sublanguage among many other things, has made it difficult to use existing(More)
Behavior-based robots have come under the spotlight in recent years by making their presence known in diverse fields of human interest. Applications in behavior-based robotics have continued to grow in areas such as demining, search and rescue, office automation, health care, etc and continue to replace human beings in risky and menial tasks. With this(More)
In today's world where most of the business transactions are carried through web-based, online applications, it is essential to make sure the underlying models in these applications are correct and sound. Even more important is to verify if the interactions between these applications function according to preferred standards. With web services being the(More)
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