用产生式方法描述优化聚合规则，用句子结构类和资源树描述语义与句子结构的对应关系以及用复杂特征集描述句法规则和词汇。
Sentence structure Classes and Resource Trees are adopted to depict syntax structure of sentences, which have similar semanteme. Complex Feature Set is used to describe dictionary.
一个表达学习算法可以再几分钟内为一个简单的任务学习一个很好的特征集合，对于复杂的任务，时间可能是几个小时到几个月。
A representation learning algorithm can discover a good set of features for a simple task in minutes, or a complex task in hours to months.
一个表达学习算法可以再几分钟内为一个简单的任务学习一个很好的特征集合，对于复杂的任务，时间可能是几个小时到几个月。
A representation learning algorithm can discover a good set of features for a simple task in minutes, or a complex task in hours to months.
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