When calculating the similarity of prodcts and the similarity of users,the arithmetic absorbs the idea of user-based and item-based collaborative filtering. Based on it, the concept of product hiberarchy and product feature is introduced,making the results more precise.
该算法在计算商品相似度和用户相似度时，吸收了User-based协同过滤算法和Item-based协同过滤算法的思想，并在此基础上引入了商品特征和商品层次的概念，使得计算得出的商品相似度更加准确。
参考来源 - 基于商品特征和层次的协同过滤推荐系统·2,447,543篇论文数据，部分数据来源于NoteExpress
因而，作为营销战略之一的商标译名，必需有能反映商品特征，促进发卖的功用。
Therefore, the trade mark as one of the marketing strategies translates, having to have can reflect an article character and promote the function of sales.
首先自动从评论中识别用户评价的商品特征，根据特征对评论句分类，然后使用句子抽取的方法生成摘要。
It first mines product features from reviews, then classifies reviews at the granularity level of sentence, and at last generates summary via sentence extraction.
从经济学的角度来看，判断一项社会活动是否具有产业性，主要看它是否属于生产过程、其产品是否具有商品特征。
From economic point of view, judging whether a social activity has industrial characteristics depends on whether it has production process and its products possess commercial characteristics.
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