余弦公式 meaning in English
cosine formula
Examples
- Experiments are performed and results show : 1 the popular retrieval models the okapi s bm25 model and the smart s vector space model with length normalization do not perform well for document similarity search ; 2 the proposed model based on texttiling is effective and outperforms other models , including the cosine measure ; 3 the methods for the three components in the proposed model are validated to be appropriately employed
我们通过实验验证了以下三点： 1 trec中的常用信息检索模型不能很好地解决文档相似搜索2我们提出的基于texttiling技术的模型是有效的，性能优于其他模型3我们提出的模型中所采用的方法是有效的，包括利用texttiling技术进行文本子主题分割，利用余弦公式来计算文本块之间的相似度，以及利用最优匹配方法来求解文档之间的总体相似度。