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Towards Effective Retrieval of Spontaneous Conversational Spoken Content
Wednesday, June 18, 2014, 11:00 am-12:00 pm Calendar
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Abstract

Spoken content retrieval (SCR) has been the focus of various research initiatives for more then 20 years. Early research focused on retrieval of clear defined spoken documents principally from the broadcast news domain. The main focus of this work was spoken document retrieval (SDR) task at TREC-6-9. The end of which saw SDR declared a largely solved problem. However, this was soon found to be a premature conclusion relating to controlled recordings of professional news content and overlooking many of the potential challenges of searching more complex spoken content. Subsequent research has focused on more challenging tasks such as search of interview recordings and semi-professional internet content. This talk will begin by reviewing early in SDR, explaining its successes and limitations, it will then move to outline work exploring SCR for more challenging tasks, such as identifying relevant elements in long spoken recordings such as meetings and presentations, provide a detailed analysis of the characteristics of retrieval behaviour of spoken content elements when indexed using manual and automatic transcripts, and conclude with a summary of the challenges of delivering effective SCR for complex spoken content and initial attempts to address these challenges. This is joint work with Maria Eskevich, Dublin City University.

Bio

Gareth J.F. Jones is a Senior Lecturer in the School of Computing at Dublin City University (Ireland). He holds a Ph.D. degree from the University of Bristol (UK), and he has previously served as a postdoctoral researcher at the University of Cambridge (UK), a Toshiba Fellow at the Toshiba Research and Development Center in Kawasaki(Japan), and a Lecturer at the University of Exeter (UK). His research focuses on information retrieval and access technologies, including multilingual, multimedia and mobile applications. Dr. Jones was General Co-Chair for SIGIR 2013, he is a co-organizer of MediaEval, and he is a member of the editorial board for the journal

This talk is organized by Jimmy Lin