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网络释义

  feature item weight

【Key words】 text categorization; Vector Space Model; feature item weight; meaning information gain; weighted entropy;

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双语例句

  • 这个模型中,两个主要影响描述准确度因素特征选择个是特征项权重计算方式

    In this model, there are two factors affecting the description's precision: one is the choice of the feature words; another is the method of weight computing.

    youdao

  • 本文根据BP神经网络的函数逼近功能,针对文档特征文档中的权重提出了一种基于BP神经网络的网络计算模型

    This paper presents a calculation model based on BP neural net to account the weight of a feature item in a document.

    youdao

  • 骨架片做特征,用空间向量模型表示文本语义,用语片出现频度做权重用余弦计算文本间语义相似度。

    Computing the semantic similarity of sentences by the method of cosine, eigenvalue come from the skeleton semantic clip, and the semantics of sentence expressed the vector space model.

    youdao

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