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Bioinformatics data mining using an improved boosting method and Chou's pseudo amino acid composition

Journal of Convergence Information technology 2012年第5期7卷 187-193页

作者： Wang, Yan Lin, Jie Fan, Hai Feng School of Economic and management Tongji University China School of Computer science and technology Hennan Polytechnic University China School of Economic and management Tongji University China Wan Fang College Henan Polytechnic University China

In bioinformatics data mining fields, classifying protein subcellular location is an important task, because protein has to be located in its proper position in a cell to perform its biological functions. Therefore, classifying protein location in cell is an important and challenging task in current molecular and cellular biology. In this paper, a computational method based an improved AdaBoost algorithm called *** was adapted to predict the location. In some previous studies conventional amino acid composition is applied to represent a protein. In order to take into account sequence order effects, in this study we use PseAAC that was proposed by Chou instead of convention amino acids composition to represent a protein. To demonstrate *** is a robust and efficient model in predicting location, and to convenient comparison to other method, the same protein dataset that was used cedano et al. in 1997 is adopted by us in this paper. From the result, we can draw a conclusion that the accuracy of this method is outperformed than other methods used by previous researchers and can make the prediction into practice.

关键词： Proteins

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A Role-based feature model componentization framework and related algorithms

A Role-based feature model componentization framework and re...

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International Conference on computer Supported Cooperative Work in Design

作者： Jun Zhang Shufen Liu College of Computer Science and Technology Henan Polytechnic University Jiaozuo China College of Computer Science and Technology Jilin University Changchun China

As a kind of requirement model, feature model represents functions of a family of products in a uniform form. To solve the chaos and entanglement problem in the process of feature model description and configuration, this paper designs a feature model componentization framework. With the help of the concept of Role and Reference Role, the framework proposes a process to analyze and decompose complex requirement specification to simple and coherent roles, and then implements Feature -Role-Component algorithms which map all features generated by requirement elicitation and analysis to different model components. In the framework and algorithms, role and reference role plays as an intermediary who decouple the feature and component, which makes convenient feature variants selection and composition and enhances the componentization level of the system. By decomposing the system functions in the early phase of software lifecycle, the framework improves the flexibility and adaptability of software artifact, which makes a stable foundation for higher quality product.

关键词： Unified modeling language Analytical models

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A Reverse Fuzzy Modelling For Vector Control of Induction Machine

A Reverse Fuzzy Modelling For Vector Control of Induction Ma...

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International Conference on Power Engineering, Energy and Electrical Drives

作者： L. Barazane M. Louri S. Amamra A. Khwaldeh University of Science and Technology Houari. Boumediene (USTHB) Faculty of Electronic & Computing BP 32 El-Alia Bab-Ezzouar 16111 Algiers Algeria. Polytechnic School of Algeria Department of Automatic Engineering 10 rue HassenBadi El Harrach 16009 Algiers Algeria. Department of computer sciences Engineering Faculty of Engineering P.O. Box:l Philadelphia University Jordan 19392.

ISBN: (纸本)9781467363914

the aim of this paper consists on presenting a novel approach of vector control of an induction motor based on the approach of fuzzy modelling proposed by Ben-Glalia. In fact, the authors introduce here and for the first time the fuzzy modelling technique of Ben-Ghalia et al. in order to conceive a simple reverse model which to replace the bloc of FOC and ensure more robustness towards parameter variations and uncertainties which represent the inconvenient of the vector control technique. The objective of such a reverse fuzzy model is to improve the robustness of the vector control scheme towards parameter's variations and external disturbances. Unfortunately, in practice this is not checked because of uncertainties in the model. The simulation results show that the two control schemes provide in their basic configuration, comparable performances regarding the decoupling, however the choice for the fuzzy vector control appears advantageous of point of view robustness.

关键词： Vector control reverse fuzzy modeling induction motor

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Orthogonal approximately harmonic projection for face recognition

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Journal of Theoretical and Applied Information technology 2012年第1期45卷 91-98页

作者： Sun, Xia Wang, Ziqiang Sun, Lijun School of Computer Science and Technology Wuhan University of Technology Wuhan China School of Information Science and Engineering Henan University of Technology Zhengzhou China

Face recognition has attracted growing attention for applications such as identity authentication and human-computer interface. However, a major challenge of face recognition is that the captured face image often lies in a high-dimensional feature space. To overcome the curse of dimensionality problem and improve the performance of face recognition, a novel manifold learning algorithm called orthogonal approximately harmonic projection (OMMP) is proposed in this paper. The OAHP algorithm is based on the harmonic projection (AHP) and explicitly considers the local geometrical structure and cluster structure of the face space. Meanwhile, the OAHP method can produce orthogonal basis vectors to preserve the metric structure of face space, which greatly enhances the discriminating power of the reduced lower-dimensional feature space. Experimental results on three face databases show that the proposed OAHP performs much better than related algorithms in terms of recognition rate. © 2005 - 2012 JATIT & LLS. All rights reserved.

关键词： Face recognition

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Self-supported cooperative networking for emergency services in multi-hop wireless networks

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IEEE Journal on Selected Areas in Communications 2012年第2期30卷 450-457页

作者： Han, Biao Li, Jie Su, Jinshu Cao, Jiannong Graduate School of Systems and Information Engineering University of Tsukuba Tsukuba Science City 305-8573 Japan School of Computer National University of Defense Technology Changsha 410073 Hunan China Department of Computing Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong

One of the challenging issues for supporting emergency services in wireless networks is coordinating the network under emergent situations. Cooperative communication (CC) is a promising approach which can offer significant enhancements in multi-hop wireless networks. This paper investigates the potential issues in using this communication paradigm to support emergency services. We focus on promoting energy-efficient and congestion-aware cooperative networking for emergency services based on the idea of Do-It-Yourself. We propose a novel cross-layer design which jointly considers the problems of route selection in network layer, congestion and non-cooperation avoidance among multiple links in MAC layer under cooperative multi-hop wireless environments. We formulate the multi-hop cooperative flow routing and relay node selection process as an optimization problem. Based on the formulations and models, we propose a self-supported networking scheme including three novel components that make the solution procedure highly efficient. Analysis and simulation results show that our approaches significantly achieve better network performance and typically satisfy the requirements for emergency services in multi-hop wireless networks. © 2006 IEEE.

关键词： Cooperative communication

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The DH exponentiation extension in a verification logic of local sessions

The DH exponentiation extension in a verification logic of l...

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2012 IEEE International Conference on computer science and Automation Engineering, CSAE 2012

作者： Xiao, Yinyin Su, Kaile Department of Computer Science Guangdong Polytechnic Normal University Guangzhou 510665 China College of Information Science and Technology East Campus Sun Yat-Sen University Guangzhou 510006 China School of Electronics Engineering and Computer Science Peking University Beijing 100871 China

ISBN: (纸本)9781467300865

Diffie-Hellman (DH) symmetric encryption plays an important role in the network security, and the security proof for many protocols relies on the DH assumption. The Logic of Local Sessions (LLS) is a practical security protocol logic. With its automatic tool Security Protocol Verifier (SPV), LLS can verify many interesting properties for complex security protocols. However, It does not discuss the DH key exchange and the related properties. In this paper, we extend the original LLS with DH exponentiation. After revising some primary concepts and definitions, a new theorem called DH-Secrecy Properties is proposed and proved. Avoiding influencing the proof of the former axioms, our extension enlarges the range of applicability of LLS. © 2012 IEEE.

关键词： Formal verification

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Synthesis and performance of a modified polyether-type superplastizer by hydroxypropylmethyl cellulose

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2012 3rd International Conference on Information technology for Manufacturing Systems, ITMS 2012

作者： Fu, Xin Jian Wang, Wanhui Zhang, Zhan Ying Zhao, HongYi Zhu, Hua Yu Zhu, Kong Zan School of Material Science and Engneering Henan Polytechnic University Jiaozuo 454003 China Department of Materials Engineering Luoyang Institute of Science and Technology Luoyang 471023 China Shandong Hong Yi Technology Co. Ltd Linyi 276034 China

ISBN: (纸本)9783037855317

Propylmethyl cellulose monoester of maleic acid (MAPMC) was synthesized with Propylmethyl cellulose and Maleic anhydride. A modified polyether-type superplastizer (PES) was prepared from ally polyoxyethylenether, Maleic anhydride, acrylic acid and MAPMC through a free radical polymerization. MAPMC and PES were recorded by FTIR. The fluidity of cement paste were investigated, the hydration process of cement for PES were characterized via Hydration Heat Tester. The results indicate that PES superplastizers can improve the fluidity of mortars and more capable of preventing slump loss, the hydroxy group of PES has no negative impact on cement hydration. © (2012) Trans Tech Publications, Switzerland.

关键词： Cellulose

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Packet-Loss-Resilient Perception-Based Haptic Data Reduction and Transmission Using ACK Packets

Packet-Loss-Resilient Perception-Based Haptic Data Reduction...

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2012 IEEE 11th International Conference on Signal Processing(ICSP 2012)

作者： Jing Qin Kup-Sze Choi Renheng Xu Wai-Man Pang Pheng-Ann Heng Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Department of Computer Science and Engineering Chinese University of Hong Kong School of Nursing The Hong Kong Polytechnic University Shenzhen Key Laboratory of Neuro-Psychiatric Modulation Department of Computer Science Caritas Institute of Higher Education

ISBN: (纸本)9781467321969

Numerous studies have shown that haptic inter-action plays a key role in enriching the sense of immersion and copresence of distributed users in collaborative virtual environments (CVEs). However, to ensure high-fidelity haptic interaction in CVEs, a high packet rate is required, resulting in considerable increase in overall traffic over the network. While perceptual deadband approach for haptic signals can successfully reduce high packet rates, this method is vulnerable to packet loss because the losing of single perceivable update packet results in a succession of wrong predictions. In this paper, we improve the perceptual deadband model by incorporating a packet loss resilient scheme using acknowledgement (ACK) packets. In case that an ACK packet is not returned to the sender within a trigger time, the sender will send an additional haptic data packet to the receiver to offset the effect caused by packet loss. By carefully selecting trigger time, buffer length and acknowledge time, the proposed scheme can be applied in a network environment with variable packet loss rates. The ACK-packets-based scheme is experimented by using different packet loss rates and lengthes of burst loss. Experimental results show that the proposed scheme can maintain stable and robust haptic interaction in terms of both objective and subjective measurements in a lossy network environment, and meanwhile perform well in haptic data reduction.

关键词： Haptic data reduction and transmission, percep-tual deadband, collaborative virtual environments

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Design on the models of Airborne Force Cooperative Command System based-on MAS

Design on the models of Airborne Force Cooperative Command S...

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

作者： Tan, Wenan Li, Song School of Computer and Information Shanghai Second Polytechnic University Shanghai China College of Computer Science and Technology University of Aeronautics and Astronautics Nanjing China First Department Guilin Air Force Academy Guilin China

ISBN: (纸本)9781467312127

The development process of the Airborne Force Cooperative Command System (ACCS) is a very complex and dynamic procedure. It is difficult to analyse quantitatively the event of all constituents. In this paper, the domestic and abroad applications of emulation techniques in cooperation are discussed. The overall structural model of the Airborne Force Cooperative Command System based on MAS (Multi-Agent System) is built up together with the structural model of the individual agent based on the BDI (Belief-Desire-Intention) architecture. In the end, a formal language is used to describe the process. © 2012 IEEE.

关键词： Multi agent systems

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Multi-instance local exemplar comparisons for pedestrian detection

Multi-instance local exemplar comparisons for pedestrian det...

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2012 2nd IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2012

作者： Sun, Chensheng Zhao, Sanyuan Hu, Jiwei Lam, Kin-Man Center for Signal Processing Department of Electronic and Information Engineering Hong Kong Polytechnic University Hong Kong Hong Kong School of Computer Science and Technology Beijing Institute of Technology Beijing China

ISBN: (纸本)9781467321938

We propose to use the partial similarity between a sample and a number of exemplars as the image features for visual object detection. Define a part of the object as a sub-window inside the object bounding box, for each part of the object, a codebook of local appearance templates is learned. By using multiple templates for each part, and allowing the template to be compared with a bag of part instances in the neighborhood of the canonical location, the deformable and multi-aspect properties can be captured. A linear classifier is learned with feature selection, selecting a subset of the templates. To improve the efficiency of the detector, a rejection cascade is built by calibrating the linear classifier;the rejection cascade makes decisions using partial scores. Experimental results show that our method substantially improves the performance for human detection. © 2012 IEEE.

关键词： Template matching

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