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    柏林工業大學Klaus Obermayer教授應邀做學術報告
    2014-09-23 14:22   審核人:

    時間: 2014-09-24 15:00

    地點:電子信息學院 159

    報告人:Klaus Obermayer 教授

    主持人:謝松云 教授

    報告題目:計算神經科學:對基于獎勵模式的學習的定量分析方法

     Computational Neuroscience: Quantitative Approaches Towards Reward-based Learning

    摘要/Abstract:

    Computational Neuroscience is a fairly recent field of research, where mathematical concepts and computational tools are being developed and applied to better understand brain function. In my presentation I would like to illustrate the potential of those theoretical approaches to specifically understand reward-based learning and decision making in humans.

    In the first part I will discuss, how stimulus statistics and reward influence human performance in a perceptual decision making task. Combining behavioral, neurophysiological and neurocomputational approaches I will provide evidence, that early attentional mechanisms are involved in integrating this high-level information. Our results indicate, that "cognitive" quantities influence sensory processing already at its earliest stages. This hypothesis will be further investigated within the joint NPU-TUB laboratory.

    In the second part I will discuss, how standard reinforcement learning can be extended to include risk, when agents face decision-making tasks in uncertain environments. In order to do so, I will present a theoretical framework, which accounts for the different "subjective" perceptions agents may have about the "objective" properties of the environment. The framework is then applied to quantify human behavior in a sequential investment task and to interpret neural activations which were simultaneously recorded by functional MRI.

     

    報告人簡介/Bio:

    Klaus Obermayer received his Diplom degree in physics in 1987 from the University of Stuttgart, Germany, and the Dr. rer. nat. degree in 1992 from the Department of Physics, Technical University of Munich, Germany.

    From 1992 and 1993 he was a postdoctoral fellow at the Rockefeller University, New York, and the Salk Institute for Biological Studies, La Jolla, USA. From 1994 to 1995 he was member of the Technische Fakultaet, University of Bielefeld, Germany. He became associate professor in 1995 and full professor in 2001 at the Department of Electrical Engineering and Computer Science of the Berlin University of Technology, Germany. He is head of the Neural Information Processing Group and member of the steering committee of the Bernstein Center for Computational Neuroscience Berlin.

    Since 2005 he is also guest professor at NPU. He was member of the governing board of the International Neural Network Society from 2004 - 2012 and was Vice-President of the Organisation for Computational Neuroscience from 2008-2011. From 1999-2003 he was one of the directors of the European Advanced Course of Computational Neuroscience. His current areas of research are computational neuroscience, artificial neural networks and machine learning, and the analysis of neural data. He co-authored more than 250 scientific publications.

     

    Klaus Obermayer

    1987年畢業于德國斯圖加特大學物理系;

    1992年畢業于德國慕尼黑工業大學物理系沙巴体育中国版,獲得自然科學博士學位沙巴体育中国版。

    1992~1993年,于在美國紐約洛克菲勒大學和拉霍亞索爾克生物研究所攻讀博士后研究員。

    1994~1995年沙巴体育中国版,工作于德國比勒費爾德大學沙巴体育中国版。

    1995年,工作于德國的柏林大學在電氣工程和技術計算機科學系,副教授。

    2001年,正教授,成為神經信息處理小組組長,加入柏林計算神經科學伯恩斯坦中心的指導委員會。

    2005年,受聘為西北工業大學客座教授沙巴体育中国版。

     

    1999-2003年,《計算神經科學》歐洲高級課程董事。

    2004 - 2012年,國際神經網絡學會理事會成員沙巴体育中国版,并在2008-2011年擔任理事會副主席

    研究領域:計算神經科學、神經網絡、機器學習和神經信號分析。共發表出版物250余篇沙巴体育中国版。

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    通訊地址:陜西省西安市友誼西路127號西北工業大學電子信息學院  郵編:710072;聯系電話:029-8843-1206 
    辦公地址:西北工業大學長安校區   
    版權所有:西北工業大學電子信息學院沙巴体育中国版;    技術支持:西安博達軟件有限公司
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