20 Aug l at CUHK A Feature Weighting Method for Robust speech Recognition Speech Activities in CST Thomas Fang Zheng Center of Speech Technology State Key Lab of Intelligent Technology and systems Department of Computer Science Technology Tsinghua University fzheng@sp.cs.tsinghua.edu.cn,http:/sp.cs.tsinghuaeducn/fzhengA Feature Weighting Method for Robust Speech Recognition Thomas Fang Zheng Center of Speech Technology State Key Lab of Intelligent Technology and Systems Department of Computer Science & Technology Tsinghua University fzheng@sp.cs.tsinghua.edu.cn, http://sp.cs.tsinghua.edu.cn/~fzheng/ -- Speech Activities in CST 20 Aug 01 at CUHK