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Lab-based teaching in which hands-on experiments are to be conducted by students takes an important part for a wide range of engineering and science disciplines. In our current practice, the lab-based teaching involves live demonstration and tutorials after the off-line lab manual review. This has become particularly problematic when the number of students is large and insufficiency on the lab-supporting...
In this research, we study how to generate a decision tree from dataset with unknown values, and proposed a decision tree learning algorithm (LTR-C4.5). The algorithm based on limited tolerance relation and C4.5. Algorithm LTR-C4.5 is composed by two function modules: filling the unknown values and generating a decision tree. The algorithm recursive calls the two function modules when handling incomplete...
This paper analysis the feather of the time,amplitude, pitch and formant construction involved such four emotions as happiness, anger, surprise and sorrow. Through comparison with non-emotional quiet speech signal, we sum up the distribution law of emotional feather including different emotional speech. Nine emotional features were extracted form emotional speech for recognizing emotion. We introduce...
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