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a Introduction human does not always use an identical feature to recognize objects s It is often that the feature components being used vary with the objects to be recognized This is feature selection after the feature extraction feature selection can be regarded as a special case of feature weighting Before going to the topic let's see a problem at first Center of speech Technology, Tsinghua University Slide 7Center of Speech Technology, Tsinghua University Slide 7 ❑ Introduction ❖ Human does not always use an identical feature to recognize objects. ❖ It is often that the feature components being used vary with the objects to be recognized. ❖ This is feature selection after the feature extraction. ❖ Feature selection can be regarded as a special case of feature weighting. ❖ Before going to the topic, let’s see a problem at first
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