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学者姓名：游天童
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Abstract ：
提出一种基于谱聚类的协同推荐算法（SCBCF）。首先从用户——项目二分网络的单顶点投影中得到用户之间的相似矩阵，然后对该矩阵应用谱聚类算法，将用户聚成k类，并将得到的聚类结果用于数据平滑和邻居结点的选择，最后基于最近邻居集评分行为，对目标用户产生推荐。在Movie-Lens上的实验结果证明本文方法比传统的协同过滤算法能更好地应用于二分网络的协同推荐。
Keyword ：
协同过滤 协同过滤 平均绝对偏差 平均绝对偏差 推荐算法 推荐算法 谱聚类 谱聚类
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| GB/T 7714 | 张思明 , 游天童 . 二分网络中基于谱聚类的协同推荐 [J]. | 微型机与应用 , 2012 , 31 (22) : 60-63 . |
| MLA | 张思明 等. "二分网络中基于谱聚类的协同推荐" . | 微型机与应用 31 . 22 (2012) : 60-63 . |
| APA | 张思明 , 游天童 . 二分网络中基于谱聚类的协同推荐 . | 微型机与应用 , 2012 , 31 (22) , 60-63 . |
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Abstract ：
平均每跳距离的估计在无线传感器网络DV-Hop定位算法中占有重要的地位,是决定定位精度的重要因素之一.针对传统DV-Hop算法的不足,本文考虑全局及锚节点周围局部网络,改进平均每跳距离的估计算法,同时,对未知节点到锚节点之间的跳数进行修正.在相同的实验环境下,仿真结果表明改进算法减少了定位误差,一定程度上提高了定位精度.
Keyword ：
DV-Hop DV-Hop 定位算法 定位算法 平均每跳距离 平均每跳距离 无线传感器网络 无线传感器网络 跳数估计 跳数估计
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| GB/T 7714 | 黄德楷 , 游天童 . 基于跳数估计的DV-Hop改进算法 [J]. | 计算机与现代化 , 2012 , (12) : 4-7 . |
| MLA | 黄德楷 等. "基于跳数估计的DV-Hop改进算法" . | 计算机与现代化 12 (2012) : 4-7 . |
| APA | 黄德楷 , 游天童 . 基于跳数估计的DV-Hop改进算法 . | 计算机与现代化 , 2012 , (12) , 4-7 . |
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Abstract ：
Analyzing two important indicators of real-time streaming media system, and then aiming at the drawbacks of the conventional real-time streaming media playout algorithm and the playout algorithm based on Differencing AR, a real-time streaming media playout algorithm based on RBF (radial basis function) delay prediction is proposed. The algorithm takes the initiative to adjust the time interval to ensure the continuity of playout and reduce average buffer delay in different situation with time-based forecasts by predicting the receive time and playout time. Finally, compared with other algorithms, the experiment result shows that this algorithm is effective. © 2010 IEEE.
Keyword ：
Broadband networks Broadband networks Forecasting Forecasting Media streaming Media streaming Multimedia systems Multimedia systems Radial basis function networks Radial basis function networks Real time systems Real time systems
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| GB/T 7714 | Dai, Lin , You, Tiantong . Real-time streaming media playout algorithm based on RBF delay prediction [C] . 2010 : 757-761 . |
| MLA | Dai, Lin 等. "Real-time streaming media playout algorithm based on RBF delay prediction" . (2010) : 757-761 . |
| APA | Dai, Lin , You, Tiantong . Real-time streaming media playout algorithm based on RBF delay prediction . (2010) : 757-761 . |
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Abstract ：
For the NAT gateway widely used in the computer network, PC can not connect to another one through NAT gateway using TCP directly. Despite there are many methods like UPNP and Port prediction which can resolve the problems, it is difficult to be used for the Low penetration rate. In this article, we design TT-STUN protocol using TCP To Stun To TCP's design for effective TCP NAT traversal. According to reliable data, its penetration can reach 90%. © 2010 IEEE.
Keyword ：
Broadband networks Broadband networks Computer system firewalls Computer system firewalls Gateways (computer networks) Gateways (computer networks) Multimedia systems Multimedia systems Transmission control protocol Transmission control protocol
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| GB/T 7714 | Lin, Zhewen , You, Tiantong . TT-STUN protocol design for effective TCP NAT traversal [C] . 2010 : 970-974 . |
| MLA | Lin, Zhewen 等. "TT-STUN protocol design for effective TCP NAT traversal" . (2010) : 970-974 . |
| APA | Lin, Zhewen , You, Tiantong . TT-STUN protocol design for effective TCP NAT traversal . (2010) : 970-974 . |
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Abstract ：
Current Role-Based Access Control (RBAC) can't assign permissions dynamically and can't update access control policies automatically. In this paper we present a new network access control (NAC) mechanism based on role and behavior (RB-NAC) which enhances role-based access control by establishing clusters of behavior to limit permissions of user dynamically and incorporating an incremental-learning algorithm to update the policies without manual intervention. RB-NAC as an enhanced access control mechanism shows its efficient flexibility and scalability in access control. © 2010 IEEE.
Keyword ：
Access control Access control Broadband networks Broadband networks Multimedia systems Multimedia systems
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| GB/T 7714 | Song, Xuejun , You, Tiantong . A network access control mechanism based on role and behavior [C] . 2010 : 95-99 . |
| MLA | Song, Xuejun 等. "A network access control mechanism based on role and behavior" . (2010) : 95-99 . |
| APA | Song, Xuejun , You, Tiantong . A network access control mechanism based on role and behavior . (2010) : 95-99 . |
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