是市场组合中所有资产组合的，rm，is，the，expected，return，on，the，market，portfolio，预期收益率。

rm which is the portfolio of all assets.

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本论文采用人工神经网络技术对中国股票市场的预期收益率进行实证分析。

This thesis uses the Artificial Neural Net technique to empirically analyze the expected rate of return of China stock markets.

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证券市场异常现象，是指风险调整后证券收益率超过预期收益率的现象。

Security market anomalies refer to the particular phenomenon in which the risk-adjusted returns to securities in mind exceed the expected values.

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