ID 原文 译文
25915 最后，基于子空间方法进行 DOA 估计。 Finally, the subspace method is employed for DOA estimation.
25916 理论和仿真结果表明，相对于现有方法，本文方法有效避免了阵元失效的影响，提高了估计精度。 Theoretical analysis and simulation results show that the proposed methods can alleviate the effect of array sensor failure and improve the estimation performance．
25917 伴随电视频道的不断增加，推荐系统在直播电视领域应用成为研究热点。 With the increase of TV channels, the application of recommender systems in the field of live TV has become a research hotspot．
25918 然而，直播电视独特的播放和收视方式使得传统的 VOD(Video On Demand)推荐系统无法直接应用，已有的推荐频道的方法不关注正在播出的节目状态从而影响了推荐准确率，而推荐节目的方法难以应对节目冷启动。 However, a traditional VOD (Video on Demand) recommender system is unable to be directly applied in live TV because of its special way of broadcasting and watching, and the existing methods of recommending channels do not pay attention to status of TV shows being broadcasted, which affects recommendation accuracy, and the methods of recommending programs are difficult to handle cold start of TV shows．
25919 为此，本文提出了一种融合频道推荐和节目推荐的评分预测算法 OFAP(Over the First by Adding Preference)。 Therefore, this paper proposes a rating prediction algorithm by fusing TV channel recommendation method and TV program recommendation method OFAP (Over the Firstby Adding Preference)．
25920 首先，利用聚类方法对每个用户实现差异性的收视时段划分，构建他们的频道-时段偏好矩阵和预推荐评分权重矩阵; Firstly, we construct different channel-time preference matrix and rating weight matrix of pre-recommendation for each user by clustering their viewing logs．
25921 其次，提出一个评分替代策略使得已有的推荐节目的算法能够应对节目冷启动，从而实现预推荐;最后，通过融合用户偏好、预推荐评分权重与预推荐结果，构建评分预测函数，将预推荐算法的评分预测结果作为评分预测函数的训练样本。 Secondly, we propose a rating strategy to alleviate the cold-start problem of TV programs for existing program recommendation algorithms, and we adopt one of them to perform pre-recommendation. Finally, we combine user's preference, rating weight and rating of pre-recommendation to construct a prediction function, which is trained with the results of pre-recommendation．
25922 实验表明，采用 Precision@ N 和 Recall@ N 作为评价标准，本文所提方法 OFAP 明显优于对比算法。 Experiments on industrial datasets show that the proposed model OFAP significantly outperforms baseline algorithms when Precision@ N and Recall@ N are adopted as criterias．
25923 随着技术的发展，信息安全受到了很大挑战。 With the development of technology, information security has been greatly challenged．
25924 物理不可克隆函数(Physically Unclonable Function，PUF)电路是一种新型的密钥生成电路，阻变存储器(Ｒesistive Ｒandom Access Memory，ＲＲAM)可以为其提供物理随机熵源，这使得 PUF 在物理上不可被攻击。 The Physical Unclon-able Function (PUF) circuit is a new type of key generation circuit. Resistive Ｒandom Access Memory(ＲＲAM)can provide asource of physical random entropy, which makes the PUF physically impossible be attacked．