检索结果-内蒙古大学图书馆

2012 International Conference on computer Science and Service System, CSSS 2012

作者： Cheng, Guang Gao, Zhongyao School of Computer Science and Engineering Southeast University Nanjing 210096 China Key Laboratory of Computer Network and Information Integration Ministry of Education China

ISBN: (纸本)9780769547190

Packet loss may cause the degradation of network and application performance. This paper proposes a passive measurement method called LTS to estimate end-to-end path packet loss ratio for the two segments of the path divided by the monitor node. This method can estimate the packet loss ration of each segment and infer loss ratios based on IP headers identification field, TCP headers sequence number and packets interval. The segment estimation packet loss method can be useful to evaluate the performance of core network or internet work if the monitor is put in the border of a network. The algorithm is evaluated to use a test bed simulation measurement, and is analyzed reordering ratios and loss ratios based on the traces collected from the CERNET backbone links. © 2012 IEEE.

关键词： Packet loss

来源：评论

学校读者我要写书评

暂无评论

Using Chou’s Pseudo Amino Acid Composition for Protein Remote Homology Detection

引用

Engineering（科研） 2013年第10期5卷 149-153页

作者： Bin Liu Xiaolong Wang School of Computer Science and Technology Harbin Institute of Technology Shenzhen Graduate School Shenzhen Guangdong China Key Laboratory of Network Oriented Intelligent Computation Harbin Institute of Technology Shenzhen Graduate School Shenzhen Guangdong China Shanghai Key Laboratory of Intelligent Information Processing Shanghai China School of Computer Science and Technology Harbin Institute of Technology Shenzhen Graduate School Shenzhen Guangdong China Key Laboratory of Network Oriented Intelligent Computation Harbin Institute of Technology Shenzhen Graduate School Shenzhen Guangdong China

Protein remote homology detection is a key problem in bioinformatics. Currently, the discriminative methods, such as Support Vector Machine (SVM), can achieve the best performance. The most efficient approach to improve the performance of the SVM-based methods is to find a general protein representation method that is able to convert proteins with different lengths into fixed length vectors and captures the different properties of the proteins for the discrimination. The bottleneck of designing the protein representation method is that native proteins have different lengths. Motivated by the success of the pseudo amino acid composition (PseAAC) proposed by Chou, we applied this approach for protein remote homology detection. Some new indices derived from the amino acid index (AAIndex) database are incorporated into the PseAAC to improve the generalization ability of this method. Our experiments on a well-known benchmark show this method achieves superior or comparable performance with current state-of-the-art methods.

关键词： Protein Remote Homology Support Vector Machine Pseudo Amino Acid Composition Protein Representation

来源：评论

学校读者我要写书评

暂无评论

Research on network malicious code dendritic cell immune algorithm based on fuzzy weighted support vector machine

Research on network malicious code dendritic cell immune alg...

引用

6th China Conference of Wireless Sensor networks, CWSN 2012

作者： Li, Peng Wang, Ruchuan Zhou, Yanting Dai, Qiuyu College of Computer Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing Jiangsu 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing Jiangsu 210003 China College of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210003 China

ISBN: (纸本)9783642362514

According to the significant impact on the accuracy rate of detection of current immune algorithms brought by incorrect classification of signal, it proposes network malicious code dendritic cell immune algorithm based on fuzzy weighted support vector machine. It summarizes and compares the pros and cons of the four methods, which are basic artificial intelligence immune algorithm, detection of unknown viruses based on immunity theory, malicious code immunity based on cryptography and automated intrusion response based on danger theory. It elaborates the process of the algorithm of the proposed immune algorithm, discusses a variety of input and output signals, gives the samples of the actual input signals, applies the coefficient of variation method to determine the values of the weights so as to enhance the discrimination ability of signal processing results, describes the principle and algorithm steps of fuzzy weighted support vector machine clustering method within immune algorithm proposed. By comparing the fuzzy aggregation before and after the immunization program experiments, it draws the conclusion that the proposed immune algorithm can optimize the input signal, fuzzy clustering the signal and the antigen, so as to bring down the number of immunization strategies and reduce the immune response time, as a result it improve the efficiency and performance of the immune system. © 2013 Springer-Verlag.

关键词： Cells

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of optimal relay selective cooperation in railway network

Performance analysis of optimal relay selective cooperation ...

引用

5th IET International Conference on Wireless, Mobile and Multimedia networks (ICWMMN 2013)

作者： Jia You Zhangdui Zhong Shan Yang Yang Liu Gongpu Wang State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China Network Technology Research Institute China United Network Communications Co. Ltd School of Computer and Information Technology Beijing Jiaotong University Beijing China

In the railway network, the fact that signal amplitude suffers loss resulted from signal traversing through the carriage which named by carriage pass loss, highly influences the reliability of the wireless communication system. In this paper, we propose an optimal relay selective cooperation (ORSC) scheme without the acknowledgment from the destination as if it succeeds in decoding or not. The main purpose of this paper is to evaluate the performance of ORSC transmission schemes. Specifically, the closed-form outage probabilities for ORSC transmission scheme are derived. By comparing obtained outage probability of ORSC with the non-cooperation transmission scheme, we find the ORSC transmission has better performance, better reliability and significantly eliminates the impact of the carriage passing loss.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Efficient iterated greedy algorithm to minimize makespan for the no-wait flowshop with sequence dependent setup times

Efficient iterated greedy algorithm to minimize makespan for...

引用

2012 IEEE 16th International Conference on computer Supported Cooperative Work in Design, CSCWD 2012

作者： Xu, Tao Zhu, Xia Li, Xiaoping School of Computer Science and Engineering Southeast University 211189 Nanjing China Key Laboratory of Computer Network and Information Integration Southeast University Ministry of Education China

ISBN: (纸本)9781467312127

In this paper, an efficient iterated greedy algorithm is proposed for the SDST (Sequence Dependent Setup Time) no-wait flowshop with makespan minimization, which is known to be NP-hard. By introducing effective operators, the Iterated Greedy algorithm is adapted to the considered problem. To improve the quality of solutions, Local Search is incorporated into the modified Iterated Greedy algorithm. The proposed algorithm is compared with BIH, GAPH1∼GAPH4, and IG-Ruiz on Taillard's instances of ssd10, ssd50, ssd100, and ssdl25. Experimental results demonstrate that the proposal outperforms BIH and GAPH1∼GAPH4. As well, the proposal is more effective than IG-Ruiz under the same computation-time criterion. © 2012 IEEE.

关键词： Local search (optimization)

来源：评论

学校读者我要写书评

暂无评论

An improved harmony search algorithm for blocking job shop to minimize makespan

An improved harmony search algorithm for blocking job shop t...

引用

2012 IEEE 16th International Conference on computer Supported Cooperative Work in Design, CSCWD 2012

作者： Hou, Peiying Wang, Dandan Li, Xiaoping School of Computer Science and Engineering Southeast University 211189 Nanjing China Key Laboratory of Computer Network and Information Integration Southeast University 211189 Nanjing China

ISBN: (纸本)9781467312127

In this paper, Harmony Search is applied to the blocking job shop problem with makespan minimization. According to the characteristics of the considered problem, a decoding method is introduced to generate feasible solutions. A rule is proposed to improvise new harmonies. Some approaches are developed to determine the harmony search considering rate, the pitch adjusting rate, the dynamic harmony memory. A local search is investigated to further improve quality of the solutions. Results of numerical experiments on classical benchmark instances show that the proposed algorithm can improve makespan 16.50% on average. © 2012 IEEE.

关键词： Benchmarking

来源：评论

学校读者我要写书评

暂无评论

Research on short-term wind farm output power prediction model based on meteorological data collected by WSN

引用

International Journal of Hybrid information Technology 2013年第5期6卷 219-226页

作者： Ma, Li Li, Bo Jie, Du Shen, Jian Wang, Jin Jiangsu Engineering Center of Network Monitoring Nanjing University of Information Science and Technology Nanjing 210044 China School of Computer and Software Nanjing University of Information Science and Technology Nanjing 210044 China Key Laboratory of Meteorological Disaster of Ministry of Education Nanjing University of Information Science and Technology Nanjing 210044 China

The prediction of wind farm output power is considered as an effective way to increase the wind power capacity and improve the safety and economy of power system. It is one of the hot research topics on wind power. The wind farm output power is related to many factors such as wind speed, temperature, etc., which is difficult to be described by some mathematical expression. In this paper, Back Propagation (BP) neural network algorithm and genetic algorithm (GA) are combined to establish the prediction model of the short-term wind farm output power based on meteorological data collected by Wireless Sensor network (WSN). The Meteorological data is used to determine the input variables of the BP neural network. Meanwhile, the GA is used to adjust the value of BP's connection weight and threshold dynamically. Then the trained BP neural network is used to predict the wind power. The experiment results show that our method has better prediction capability compared with that using BP neural network alone or using wind power formulas. © 2013 SERSC.

关键词： Wireless sensor networks

来源：评论

学校读者我要写书评

暂无评论

A feedback-based timeout packets dropping strategy in real-time wireless sensor networks

引用

2nd World Congress on computer Science and information Engineering, CSIE 2011

作者： Shen, Zhuowei Xu, Peng Xu, Xiaoxi Key Lab. of Computer Network and Information Integration Ministry of Education School of Computer Sci. and Eng. Southeast University Nanjing China

ISBN: (纸本)9783642257681

Resource limited real-time wireless sensor network is a new type of application of sensor network. In this kind of networks, there are numerous invalid real-time packets, which have already expired or are destined to expire. In this paper, a feedback-based timeout packet dropping strategy (FBTPD) is proposed. With this strategy, timestamps are piggybacked in real-time packets. So that sink node can gather the historical information and estimate the future transmitting time of some sensor node. Then the estimated transmitting time is fed back to the sensor node in a feedback packet. The sensor node hereby drops the invalid realtime packets which will expire later. Simulation experiments reveal that: compared with other dropping policies, FBTPD can drop more invalid real-time packets, and can significantly improve the throughput of the non real-time packets. Thus FBTPD can efficiently boost the resources utilization in wireless sensor networks, especially in hybrid real-time wireless sensor networks. © Springer-Verlag Berlin Heidelberg 2012.

关键词： Real time systems

来源：评论

学校读者我要写书评

暂无评论

Overlapping community detection combining content and link

引用

Journal of Zhejiang University-Science C(computers and Electronics) 2012年第11期13卷 828-839页

作者： Zhou-zhou HE Zhong-fei(Mark)ZHANG Philip S.YU Zhejiang Provincial Key Laboratory of Information Network Technology Department of Information Science and Electronic EngineeringZhejiang UniversityHangzhou 310027China Department of Computer Science University of Illinois at ChicagoIL 60607USA

In classic community detection, it is assumed that communities are exclusive, in the sense of either soft clustering or hard clustering. It has come to attention in the recent literature that many real-world problems violate this assumption, and thus overlapping community detection has become a hot research topic. The existing work on this topic uses either content or link information, but not both of them. In this paper, we deal with the issue of overlapping community detection by combining content and link information. We develop an effective solution called subgraph overlapping clustering (SOC) and evaluate this new approach in comparison with several peer methods in the literature that use either content or link information. The evaluations demonstrate the effectiveness and promise of SOC in dealing with large scale real datasets.

关键词： Overlapping Content Link Community detection

来源：评论

学校读者我要写书评

暂无评论

Semantic access control for cloud computing based on e-Healthcare

Semantic access control for cloud computing based on e-Healt...

引用

2012 IEEE 16th International Conference on computer Supported Cooperative Work in Design, CSCWD 2012

作者： Sun, Lili Wang, Hua Yong, Jianming Wu, Guoxin Centre for Systems Biology University of Southern Queensland Toowoomba Australia School of Information Systems University of Southern Queensland Toowoomba Australia School of Computer Science and Engineering Key Laboratory for Computer Network and Information Integration Southeast University China

ISBN: (纸本)9781467312127

With the increased development of cloud computing, access control policies have become an important issue in the security filed of cloud computing. Semantic web is the extension of current Web which aims at automation, integration and reuse of data among different web applications such as clouding computing. However, Semantic web applications pose some new requirements for security mechanisms especially in the access control models. In this paper, we analyse existing access control methods and present a semantic based access control model which considers semantic relations among different entities in cloud computing environment. We have enriched the research for semantic web technology with role-based access control that is able to be applied in the field of medical information system or e-Healthcare system. This work demonstrates how the semantic web technology provides efficient solutions for the management of complex and distributed data in heterogeneous systems, and it can be used in the medical information systems as well. © 2012 IEEE.

关键词： Cloud computing

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：