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X-WR-CALDESC:25 Years Defining Technology
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DTSTART:20190204T163000Z
DTEND:20190204T183000Z
DTSTAMP:20190204T163000Z
CREATED:20190204
LAST-MODIFIED:20190724
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SUMMARY:Distinguished LectureModeling Interactive Information Retrieval and Social Media Interaction as Stochastic Processes
DESCRIPTION:\nNorbert Fuhr, \nUniversity of Duisburg-Essen, Germany – \n\nAbstract:\nStochastic models have a long history in information retrieval (IR). For modeling sequences of interactions, different variants of Markov models have been proposed by a number of researchers. Here a user moves stochastically between different model states, which are not directly observable; instead, some signal is emitted along with each transition. For applying these models to interactive retrieval, we aim at modeling search progress at a level that is comparable to cognitive models. This allows for user-oriented analysis of interactive IR, for user guidance and for stochastic simulations of interactive IR. As a second application domain, we regard social media interaction, focusing on rumor detection and veracity in Twitter streams. Experimental results from both domains show that these approaches are well-suited for dealing with real-world data.\nBio\nNorbert Fuhr holds a PhD (Dr.) in Computer Science from the Technical University of Darmstadt, which he received in 1986. He became Associate Professor in the computer science department of the University of Dortmund in 1991 and was appointed Full Professor for computer science at the University of Duisburg-Essen in 2002.\nHis past research dealt with topics such as probabilistic retrieval models, the integration of IR and databases, retrieval in distributed digital libraries and XML documents, and user friendly retrieval interfaces. His current research interests are models for interactive retrieval, user-oriented retrieval methods and social media retrieval.\nNorbert Fuhr has served as PC member and program chair of major conferences in IR and digital libraries, and on the editorial boards of several journals in these areas.\nIn 2012, Norbert Fuhr received the Gerald Salton Award of ACM-SIGIR.\nHost\nMário Jorge Costa Gaspar da Silva\nVenue:\nAnfiteatro Abreu Faro – IST Alameda\n
URL:https://www.inesc-id.pt/events/dl-43-modeling-interactive-information-retrieval-and-social-media-interaction-as-stochastic-processes/
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