SUNMONTUEWEDTHUFRISAT
Events for August 08, 2014
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AI Seminar
Fri, Aug 08, 2014 @ 11:00 AM - 12:00 PM
Information Sciences Institute
Conferences, Lectures, & Seminars
Speaker: Joel Tropp, Caltech
Talk Title: Finding Structure with Randomness: Stochastic Algorithms for Numerical Linear Algebra
Abstract: Computer scientists have long known that randomness can be used to improve the performance of algorithms. A familiar application is the process of dimension reduction, in which a random map transports data from a high-dimensional space to a lower-dimensional space while approximately preserving some geometric properties. By operating with the compact representation of the data, it is possible to produce approximate solutions to certain large problems very efficiently.
Recently, it has been observed that dimension reduction has powerful applications in numerical linear algebra and numerical analysis. This tutorial will offer a high-level introduction to randomized methods for some of the core problems in this field. In particular, it will cover techniques for constructing standard matrix factorizations, such as the truncated singular value decomposition and the Nystrom approximation. In practice, the algorithms are so effective that they compete withâ or even outperformâ classical algorithms. These methods are likely to have significant applications in modern large-scale learning systems.
Biography: Joel A. Tropp is Professor of Applied & Computational Mathematics at the California Institute of Technology. He earned his PhD degree in Computational Applied Mathematics from the University of Texas at Austin in 2004. Dr. Troppâs work lies at the interface of applied mathematics, electrical engineering, computer science, and statistics. This research concerns the theoretical and computational aspects of data analysis, sparse modeling, randomized linear algebra, and random matrix theory. Dr. Tropp has received several major awards for young researchers, including the 2007 ONR Young Investigator Award and the 2008 Presidential Early Career Award for Scientists and Engineers. He is also the winner of the 6th Vasil A. Popov prize and the 2011 Monroe H. Martin prize.
Host: Greg Ver Steeg
Webcast: http://webcasterms1.isi.edu/mediasite/Viewer/?peid=20188709a05e4b678dfa2c2d588408ad1dLocation: Information Science Institute (ISI) - 11th floor large conference room
WebCast Link: http://webcasterms1.isi.edu/mediasite/Viewer/?peid=20188709a05e4b678dfa2c2d588408ad1d
Audiences: Everyone Is Invited
Contact: Kary Lau
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor. -
NL Seminar: "Rapid Generation of Pronunciation Dictionaries for New Domains and Languages
Fri, Aug 08, 2014 @ 03:00 PM - 04:00 PM
Information Sciences Institute
Conferences, Lectures, & Seminars
Speaker: Tim Schlippe, Karlsruhe Institute of Technology
Talk Title: NL Seminar
Series: Natural Language Seminar
Abstract: Automatic speech recognition systems exist only for a small fraction of the more than 7,100 languages in the world since the development of such systems is usually expensive and time-consuming. Therefore, porting speech technology rapidly to new languages with little effort and cost is an important part of research and development. Pronunciation dictionaries are a central component for both automatic speech recognition and speech synthesis. They provide the mapping from the orthographic form of a word to its pronunciation, typically expressed as a sequence of phonemes. I will present innovative strategies and methods for the rapid generation of pronunciation dictionaries for new application domains and languages. Depending on various conditions, solutions are developed and proposed - starting from the simple scenario in which the target language can be found in written form on the Internet and we have a simple mapping between speech and written language - up to
the difficult scenario in which no written form for the target language exists. We embedded many of the tools implemented in this work in the Rapid Language Adaptation Toolkit. Its web interface is publicly accessible and allows people to build first speech recognition systems with little technical background.
Biography: Since 2008 Tim Schlippe is a research assistant and PhD student at Karlsruhe Institute of Technology (KIT), Institute for Anthropomatics, in Germany. At KIT he is involved in teaching and several projects. He has published multiple publications in the field of multilingual speech recognition. For his master's thesis he was as a visiting researcher at Carnegie Mellon University, doing research in the field of statistical machine translation. Tim Schlippe will finish his PhD in November 2014. His current research interests are: Multilingual speech recognition with a focus on rapid adaptation of speech recognition systems to new domains and languages, pronunciation modeling, and language modeling.
Home Page:
http://csl.ira.uka.de/~schlippe/
Host: Aliya Deri and Kevin Knight
More Info: http://nlg.isi.edu/nl-seminar/
Location: Information Science Institute (ISI) - 11th Floor Conf Rm (#1135)
Audiences: Everyone Is Invited
Contact: Peter Zama
Event Link: http://nlg.isi.edu/nl-seminar/
This event is open to all eligible individuals. USC Viterbi operates all of its activities consistent with the University's Notice of Non-Discrimination. Eligibility is not determined based on race, sex, ethnicity, sexual orientation, or any other prohibited factor.
