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15th International Conference on Algorithms and Architectures for Parallel processing, ICA3PP 2015

作者： Guo, Xiaojun Cheng, Guang Pan, Wubin Dinhtu, Truong Liang, Yixin School of Computer Science and Engineering Southeast University Nanjing211189 China Key Laboratory of Computer Network and Information Integration Southeast University Nanjing211189 China School of Information Engineering Xizang Minzu University Xianyang712082 China XiZang Key Laboratory of Optical Information Processing and Visualization Technology Xizang Minzu University Xianyang712082 China

ISBN: (纸本)9783319271361

To solve the problem of getting command and control (C&C) server address covertly for malware of Botnet or advanced persistent threats, we propose a novel C&C-server address discovery scheme via search engine. This scheme is com-posed of five modules. The botmaster uses publish module to issue C&C-server IPs in diaries of several free blogs on Internet firstly. Then these diaries could be indexed by search engine (SE). When the infected terminal becomes a bot, it uses keyword production module to produce search keyword and submits some or all these keywords to SEs to obtain the search engine result pages (SERPs). For items in SERPs, the bot uses filtering algorithm to remove noise items and leave valid items whose abstract contain C&C-server IPs. Lastly the bot utilizes extraction and conversion module to extract these C&C-server IPs and translates them into binary format. The experimental results show that our proposed scheme is fully able to discover and obtain C&C-server IPs via various search engines. Furthermore, if we set proper threshold value for SE, it can extract C&C-server IPs accurately and efficiently. © Springer International Publishing Switzerland 2015.

关键词： Search engines

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Predicting helix boundaries of α-helix transmembrane protein with feedback conditional random fields 11th

Predicting helix boundaries of α-helix transmembrane protei...

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11th International Conference on Intelligent Computing, ICIC 2015

作者： Wang, Kun Wu, Hongjie Lu, Weizhong Fu, Baochuan Lü, Qiang Huang, Xu School of Electronic and Information Engineering Suzhou University of Science and Technology Suzhou215009 China School of Computer Science and Technology Soochow University Suzhou215006 China Jiangsu Provincial Key Lab for Information Processing Technologies Suzhou215006 China School of Information Engineering Huzhou University Huzhou313000 China

ISBN: (纸本)9783319221793

Transmembrane proteins play an important role in cellular energy production, signal transmission, metabolism. Existing machine learning methods are difficult to model the global correlation of the membrane protein sequence, and they also can not improve the quality of the model from sophisticated sequence features. To address these problems, in this paper we proposed a novel method by a feedback conditional random fields (FCRF) to predict helix boundaries of α-helix transmembrane protein. A feedback mechanism was introduced into multi-level conditional random fields. The results of lower level model were used to calculate new feedback features to enhance the ability of basic conditional random fields. One wide-used dataset DB1 was used to validate the performance of the method. The method achieved 95% on helix location accuracy. Compared with the other predictors, FCRF ranks first on the accuracy of helix location. © Springer International Publishing Switzerland 2015.

关键词： Learning systems

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VLSI multilayer obstacle-avoiding Steiner minimal tree construction algorithms in X-architecture

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Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of computer-Aided Design and computer Graphics 2015年第3期27卷 523-532页

作者： Liu, Genggeng Guo, Wenzhong Chen, Guolong College of Mathematics and Computer Sciences Fuzhou University Fuzhou350116 China Fujian Provincial Key Laboratory of Network Computing and Intelligent Information Processing Fuzhou350116 China

Steiner minimal tree is a fundamental model in VLSI routing. Further considering X-architecture, the presence of obstacles, and the requirements of multilayer routing, this paper presented an efficient algorithm based on particle swarm optimization for constructing the multilayer obstacle-avoiding X-architecture Steiner minimal tree. Edge transformation was designed to make the particles have the greater ability to change the topology of the routing tree and avoided the obstacles. The new operators combined with union-find set were designed to prevent the generation of the loops. In order to avoid obstacle and discourage the generation of vias, the penalty function related to obstacle-avoiding and vias was proposed. The proposed algorithm finally optimizes the total cost of routing tree which is the most important optimization target of the multilayer routing. The experimental results show that, the proposed algorithm is effective and superior to state-of-the-art multilayer routing algorithms on the total cost. ©, 2015, Institute of Computing technology. All right reserved.

关键词： Multilayers

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Soft information assisted phase noise estimation in vector OFDM using linear MMSE receivers 19

Soft information assisted phase noise estimation in vector O...

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19th International ITG Workshop on Smart Antennas, WSA 2015

作者： Ngebani, Ibo Li, Yabo Xia, Xiang-Gen Zhao, Minjian Chuma, Joseph Cai, Yunlong Department of Information Science and Electrical Engineering Zhejiang Provincial Key Laboratory of Information Network Technology Zhejiang University Hangzhou Zhejiang China Department of Electrical and Computer Engineering University of Delaware NewarkDE19716 United States

ISBN: (纸本)9783800736621

Vector orthogonal frequency division multiplexing (V-OFDM) for single transmit antenna systems is a generalization of OFDM where single-carrier frequency domain equalization (SC-FDE) and OFDM are just two special cases. Phase noise in a V-OFDM system leads to a common vector block phase error (CVBPE) as well as an inter vector block carrier interference (IVBCI) effect. Severe performance degradation results if these two effects are not estimated and compensated for. In this paper blind and semi-blind phase noise estimation and compensation in a V-OFDM system is investigated by using the expectation maximization (EM) algorithm. This is motivated by the fact that conventional frequency domain phase noise suppression schemes based on pilot-aided CVBPE estimation and compensation are not spectrally efficient as the vector block size is increased. Two novel algorithms are proposed, one estimates the CVBPE only and the other estimates the entire phase noise sequence in the time-domain. Simulations show that with the proposed algorithms V-OFDM can outperform OFDM system with conventional data aided or soft information aided phase noise CPE correction. © VDE Verlag GMBH · Berlin · Offenbach, Germany.

关键词： Vectors

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Array P systems with parallel rewriting and tables of context-free rules

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Journal of Computational and Theoretical Nanoscience 2016年第6期13卷 3636-3642页

作者： Pan, Linqiang Song, Bosheng Isawasan, Pradeep Subramanian, K.G. School of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou Henan450002 China Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan Hubei430074 China 32 Jalan Anson Penang10400 Malaysia Department of Mathematics and Computer Science Faculty of Science Liverpool Hope University LiverpoolL16 9JD United Kingdom

The two areas of picture languages and membrane computing were linked by array-rewriting P system in which array objects and context-free array-rewriting rules are used in order to generate picture languages. While rewriting arrays in the array-rewriting P system is in a sequential manner, parallel array P system (PAP) involves rewriting of arrays in the regions in parallel in order to generate picture languages. A variant of PAP, known as tabled array P system (TPAP), uses sets of context-free array-rewriting rules, called tables of rules. Generative power of TPAP in comparison with PAP and certain other kinds of picture array generating mechanisms are investigated. Copyright © 2016 American Scientific Publishers. All rights reserved.

关键词： Context free languages

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Identification of hot regions in protein interfaces: Combining density clustering and neighbor residues improves the accuracy 11th

Identification of hot regions in protein interfaces: Combini...

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11th International Conference on Intelligent Computing, ICIC 2015

作者： Hu, Jing Zhang, Xiaolong School of Computer Science and Technology Wuhan University of Science and Technology Wuhan Hubei430065 China Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System Wuhan Hubei430065 China

ISBN: (纸本)9783319221854

Discovering hot regions in protein–protein interaction is important for understanding the interactions between proteins, while because of the complexity and time-consuming of experimental methods, the computational prediction method can be very helpful to improve the efficiency to predict hot regions. In hot region prediction research, some models are based on structure information, and others are based on a protein interaction network. However, the prediction accuracy of these methods can still be improved. In this paper, a new method that uses density-based incremental clustering to predict hot regions and optimizes the predicted hot regions using neighbor residues is proposed. Experimental results show that the proposed method significantly improves the prediction performance of hot regions. © Springer International Publishing Switzerland 2015.

关键词： Proteins

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A Community Evolution Model Based on Visibility Graph

A Community Evolution Model Based on Visibility Graph

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第三十四届中国控制会议

作者： WANG Hong SUN Yan-shen School of Information Science and Engineering Shandong Normal University Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Department of Earth Sciences Zhejiang University

ISBN: (纸本)9781467374439

One of the most important work to analyze networks is community detection. We present a dynamic community discovery method based on Visibility Graph. Firstly, we put forward related definitions of Visibility Graph for multi-dimensional time series. Then, we present algorithms to describe how to use Visibility Graph in finding communities in complex networks. Finally, we present algorithms to find dynamic multi-relational communities. We apply our method in some real data sets. Experimental results show that our methods do better for finding dynamic communities in complex networks.

关键词： community evolution,visibility graph,community discovery,complex network

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Design of a configurable fixed-point FFT processor

Design of a configurable fixed-point FFT processor

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IET International Radar Conference 2015

作者： Yang, Chen Xie, Yi-Zhuang Chen, Liang Chen, He Deng, Yi Beijing Key Laboratory of Embedded Real-Time Information Processing Technology Beijing Institute of Technology Beijing China Department of Electrical and Computer Engineering Virginia Polytechnic Institute State University ArlingtonVA United States

ISBN: (纸本)9781849199940

In this paper, we focus on the widely-used radix-22 Decimation-In-Frequency (DIF) Fast Fourier Transform (FFT) algorithm. A variable-length, controllable-precision FFT processor is proposed. The processor can perform 16, 64, 256 and 1024 point FFT/IFFT and provide flexible wordlength scaling modes for different FFT stages. Thus, the processor is suitable for different precision and FFT length requirements in various applications. Aiming at high throughput performance, single-path delay feedback (SDF) pipeline architecture is adopted. The design is testified on Xilinx Virtex6 xc6vcx240t FPGA. Accordingly, we make a clear comparison between the proposed design and Xilinx FFT v7.1. Our design achieves better signal-to-quantizationnoise ratio (SQNR) property and shorter pipeline latency. Meanwhile, the occupied resource is approximately the same. Moreover, SQNR performance of different FFT length and wordlength scaling modes is analysed.

关键词： Field programmable gate arrays (FPGA)

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An architecture-based autonomous engine for services configuration and deployment in hybrid clouds 2nd

An architecture-based autonomous engine for services configu...

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2nd International Conference on Cloud Computing and Big Data, CloudCom-Asia 2015

作者： Liu, Yanping Lan, Xingtu Chen, Xing Feng, Xin Zheng, Xianghan Guo, Wenzhong College of Mathematics and Computer Science Fuzhou University Fuzhou350108 China Fujian Provincial Key Laboratory of Networking Computing and Intelligent Information Processing Fuzhou University Fuzhou350108 China College of ZhiCheng Fuzhou University Fuzhou350108 China

ISBN: (纸本)9783319284293

As cloud computing offers scalability, extensibility, elasticity, flexibility and cost savings to the customers of cloud service providers, there is a growing trend towards migrating services to the cloud. Hybrid clouds, which comprise nodes both in the private cloud and in the public cloud, have emerged as a new model for service providers to deploy their services. However, to deploy services in hybrid clouds is a complex task as services are in essence distributed applications. What is more, there is heterogeneity among hybrid clouds. This article proposes an autonomous engine for services configuration and deployment in hybrid clouds. The automation is enabled by the definition of generic information model, which describes all the information relevant to the deployment and configuration of services with the same abstractions, including the required resources, service dependencies and business objectives. In addition, to shield the heterogeneity of hybrid clouds, we define mapping rules for model transformation. We also deploy a three-layer architecture application on Openstack and CloudStack to validate the correctness of our approach. © Springer International Publishing Switzerland 2015.

关键词： Engines

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Introduction for Code for Design of Automatic Fire Alarm System

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Procedia Engineering 2016年 135卷 67-71页

作者： Hao-wei Yao Ping Zhang Yuan-pan Zheng Dong Liang School of Building Environment Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China College of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou 450002 China School of Computer and Communication Engineering Zhengzhou University of light industry Zhengzhou 450002 China Guangdong Provincial Key Laboratory of Fire Science and Technology Sun Yat-sen University Guangzhou 510006 China

This paper has made a comprehensive introduction to the new national standard GB50116, which is the code for the design of automatic fire alarm system. It gives a specific comparison between GB50116-2013 and GB50116-98. And the content of GB50116-2013 is more comprehensive than GB50116-98. The paper makes detailed analysis to their specific contents, and gives comparative analysis to these two standards, including terminology, basic provisions, design of fire linkage control, selection of fire detectors, settings of system equipment, system power supply, and cabling, etc.

关键词： code for design of automatic fire alarm system national standard GB50116

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