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Events for October 20, 2009
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Combining Large-Vocabulary Continuous Speech Recognition and Spoken Term Detection for Robust Speech
Tue, Oct 20, 2009 @ 10:30 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Guest Speaker:
Douglas W. Oard
University of MarylandAbstract: Well tuned Large-Vocabulary Continuous Speech Recognition (LVCSR) has been shown to generally be more effective than vocabulary-independent techniques as a basis for topic-based ranked retrieval of spoken content. Tuning LVCSR systems to a topic domain can be costly, however, and Out-Of-Vocabulary (OOV) query terms can adversely affect retrieval effectiveness when that tuning is not performed. I will show, however, that retrieval effectiveness for queries with OOV terms can be substantially improved by combining evidence from LVCSR with additional evidence from utterance-scale Spoken Term Detection (STD). The combination is performed by using relevance judgments from held-out topics to learn generic (i.e., topic-independent), smooth, non-decreasing transformations from LVCSR and STD system scores to relevance probabilities. I'll describe an evaluation using a test collection that includes, conversational speech audio from an oral history collection, topics based on actual requests for information in that collection, and relevance judgments made by trained experts. For short queries, our combined system recovers 57% of the mean average precision that could have been obtained through LVCSR domain tuning. This is joint work with Scott Olsson, using a test collection built in collaboration with Sam Gustman of the USC Shoah Foundation Institute for Visual History and Education.About the speaker: Douglas Oard is an Associate Professor at the University of Maryland, College Park, with joint appointments in the College of Information Studies and the Institute for Advanced Computer Studies; he is on sabbatical at Berkeley's iSchool for the Fall 2009 semester. Dr. Oard earned his Ph.D. in Electrical Engineering from the University of Maryland. His research interests center around the use of emerging technologies to support information seeking by end users, with recent work on interactive techniques for cross-language information retrieval and techniques for search and sense-making in conversational media. Additional information is available at http://www.glue.umd.edu/~oard/.Hosted by Shrikanth NarayananLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Talyia Veal
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Navy Information Session
Tue, Oct 20, 2009 @ 12:00 PM - 01:00 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Join representatives of this company as they share general company information and available opportunities.
Location: Ronald Tutor Hall (RTH 211)
Audiences: All Viterbi Students
Contact: RTH 218 Viterbi Career Services
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Spotlight on Civil Engineering and Environmental Engineering
Tue, Oct 20, 2009 @ 06:00 PM - 07:30 PM
Viterbi School of Engineering Student Affairs
Workshops & Infosessions
A panel discussion featuring industry representatives, alumni, faculty and current student discussing opportunities in Civil Engineering and Environmental Engineering.For more detailed information please visit the Spotlight website at - http://viterbi.usc.edu/students/undergrad/fye/spotlight.htm\Dinner is provided.RSVP to viterbi.studentservices@usc.edu with subject line: "RSVP for Spotlight on 10/20".
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Viterbi Undergraduate Students
Contact: Benjamin Vatterott
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San Diego Admission Reception
Tue, Oct 20, 2009 @ 07:00 PM - 09:00 PM
Viterbi School of Engineering Undergraduate Admission
Receptions & Special Events
Hosted by the Admission Office, the reception will include a general discussion about the University. You will also be able to ask questions about your areas of academic interest, explore co-curricular options and learn more about life and opportunities at USC. A representative from our Admission and Student Affairs staff, will be there on behalf of the Viterbi School of Engineering along with other representatives from the University.RSVP online at http://www.usc.edu/admevents
Location: Hyatt Rosemont<br>6350 North River Road<br>Rosemont, IL 60018
Audiences: Prospective Freshmen and their families
Contact: Viterbi Admission
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Engineers Without Borders - La Estanzuela Project Meeting
Tue, Oct 20, 2009 @ 07:00 PM - 09:00 PM
Viterbi School of Engineering Student Organizations
Student Activity
Location: Kaprielian Hall (KAP) - 147
Audiences: Everyone Is Invited
Contact: Engineers Without Borders
