Distinguished LectureModeling Interactive Information Retrieval and Social Media Interaction as Stochastic Processes

Distinguished LectureModeling Interactive Information Retrieval and Social Media Interaction as Stochastic Processes

Norbert Fuhr,

University of Duisburg-Essen, Germany

Abstract:

Stochastic 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.

Bio

Norbert 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.
His 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.
Norbert 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.
In 2012, Norbert Fuhr received the Gerald Salton Award of ACM-SIGIR.

Host

Mário Jorge Costa Gaspar da Silva

Venue:

Anfiteatro Abreu Faro – IST Alameda

The event is finished.

About INESC-ID

INESC-ID, “Instituto de Engenharia de Sistemas e Computadores: Investigação e Desenvolvimento em Lisboa” is a Research and Development and Innovation Organization (R&D+i) in the fields of Computer Science and Electrical and Computer Engineering. INESC-ID mission is to produce added value to people and society, supporting the response of public policies to scientific, health, environmental, cultural, social, economic and political challenges. INESC-ID promotes cooperation between academia and industry by addressing research on daily life issues, such as healthcare, space, mobility, agri-food, industry 4.0, and smart grids. This high level of knowledge transfer is achieved through both competitive research projects and direct contracted research. Public and private entities have therefore access to a pool of knowledge, resources and services provided through the unique competencies available at the institution.

 

INESC-ID is supported by:

Join our newsletter

* indicates required

Subscriber consent

The data submitted through this form will be used exclusively for the sending of INESC-ID Newsletter, NEWS-ID, and will not, under any circumstances, be shared with third parties. If you choose to, you can easily unsubscribe from the newsletter by following the link presented in the footer. In that case, your data will be automatically deleted from our information system. If you need to update your contact information or clarify any questions related to the newsletter, please contact info@inesc-id.pt. By submitting this form, you give permission to the use of your personal data according to the conditions above.

We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp's privacy practices here.

});