过滤

Thesaurus concept hierarchy collaborative filtering algorithm improves search efficiency and quality of recommendatory results significantly which is proved by elementary test and analysis.

经过初步的测试分析，主题词概念分层协同过滤推荐算法可以显著的提高查询效率和推荐结果的质量。

Collaborative filtering is one of the most successful technologies for building recommender systems, and is extensively used in many personalized systems.

协同过滤算法是至今为止最成功的个性化推荐技术之一，被应用到很多领域中。

Collaborative recommender systems have been widely used in E-commerce environment.

协作过滤推荐模型目前已被广泛应用于电子商务等环境。

Information filtering is the fundamental and core section of personal recommender system.

信息过滤技术是个性化推荐系统的基础和核心部分，也是作为信息系统集成中一个极为重要的组成部分。

Collaborative filtering is a successful technology that is implemented in E-commerce recommender systems today.

协同过滤是目前在电子商务推荐系统中应用较为成功的个性化推荐技术。

This paper have a discussion on the theory about recommender system base on collaborative filtering technology, and the use in engineering applications, and deficiencies and difficulties of this system.

论文论述了基于协作过滤技术的个性化推荐系统有关理论和此理论在工程上的应用，以及此种类型系统存在的不足和困境。

Collaborative filtering is the most successful recommender system technology to date. It has been shown to produce high quality recommendations, but the performance degrades with the number of customers and products.

协同过滤是迄今为止最成功的推荐系统，它可以产生高质量的推荐，但是其性能随着客户和产品数目的增加而下降。

Collaborative filtering is one of the most successful techniques for building recommender systems, and is extensively used in many personalized systems.

协作过滤算法作为至今最成功的个性化推荐技术之一，被广泛应用于电子商务、个性化节目推荐等系统中。

Poor recommendation quality is one major challenge in collaborative filtering recommender systems.

推荐质量低是协同过滤推荐技术面临的主要难题之一。

It gives emphasis to analyzing the problems which collaborative filtering is facing when it is applied in recommender systems and existing improved methods.

着重分析了协同过滤在推荐系统中应用时所面临的问题，以及现有的解决方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。