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International Conference on Applied Computing and information Technology/International Conference on Computational Science and Intelligence (ACIT-CSI)

作者： Yaguang Wang Wenlong Fu Aina Sui Yuqing Ding Information Engineering School Communication University of China Ministry of Culture Key Laboratory of Acoustic Visual Technology and Intelligent Control System

ISBN: (纸本)9781467396431

Text Categorization plays an important role in the fields of information retrieval, machine learning, natural language processing, data mining and others. With the development of computer and information technology, there have been many classification algorithms. Each text classification algorithms will get result at differing speeds and efficiency due to the various feature of test text. It has been found that Naive Bayes classifier has a higher accuracy and rate by classifying Movie Reviews in NLTK using Decision Tree classifier, Naive Bayes classifier, Maximum Entropy classifier and K-nearest neighbor classifier.

关键词： Entropy Classification algorithms Decision trees Text categorization Accuracy Motion pictures Training

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Relative Influence Maximization in Competitive Dynamics on Complex Networks

Relative Influence Maximization in Competitive Dynamics on C...

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IEEE Annual Conference on Decision and control

作者： Jiuhua Zhao Qipeng Liu Lin Wang Xiaofan Wang Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai 200240 China Institute of Complexity Science Qingdao University Qingdao 266071 China

ISBN: (纸本)9781479978878

We consider a model of competition on complex networks in which two competitors have fixed and opposite states, and other agents, called normal agents, adjust their states according to a distributed consensus protocol. Suppose that one of the competitors could add a given number of new links to enhance his influence which can be defined as the total supporting degree of the normal agents or the number of supporters. We investigate the problem of how to add these links so as to maximize the influence of the competitor over the other one (called relative influence). Under different definitions of influence, two relative influence maximization problems, named Problem 1 and Problem 2, are proposed. We show that the objective function of Problem 1 is monotonous and sub-modular. Hence, there exists a polynomial-time greedy algorithm approximately solving Problem 1. For Problem 2, we prove that it is NP-hard. The Alternative Direction Method of Multipliers (ADMM for short) algorithm and several heuristic algorithms are introduced to provide approximate solutions for these two problems.

关键词： complex networks Competitors force variation Heuristic algorithms Objective function Agents

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Image Deblocking via Group Sparsity Optimization

Image Deblocking via Group Sparsity Optimization

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IEEE International Symposium on Circuits and systems

作者： Zhenbo Lu Houqiang Li Weiping Li CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application System Department of Electronic Engineering and Information Science University of Science and Technology of China Heifei Anhui China

ISBN: (纸本)9781479983926

Block-wise compressed image often suffers from the blocking artifacts. In this paper, we propose a novel deblocking scheme for compressed image, by combining image's sparse property and its self-similarity together, called group sparsity optimization. Instead of processing each image patch individually, in the proposed scheme, similar patches in one group are required to be well-represented on learned dictionary collaboratively, using group sparsity regularization. The group sparsity not only imposes every patch's representation to be sparse, bus also requires patches' coefficients in the group share the similar pattern. The experiment results on standard test images demonstrate that our scheme can improve the PSNR of the compressed images by an average of 1.25 dB, and outperform state of the art deblocking approaches.

关键词： Image Deblocking Image Restoration JPEG compression

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controllable deoxyribonucleic acids sub-tile self-assembly by deoxyribonucleic acids strand displacement

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Journal of Computational and Theoretical Nanoscience 2015年第10期12卷 3774-3780页

作者： Wang, Yanfeng Zhao, Taotao Shi, Xiaolong Li, Mengmeng Cui, Guangzhao School of Electrical and Information Engineering Henan Key Lab of Information-Based Electrical Appliances Zhengzhou University of Light Industry Zhengzhou China Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan China

Here we report a controllable four DNA sub-tiles, self-assembling into 4-arm DNA tiles, under control of a DNA strand displacement based on DNA sequential circuit. The motif is encoded, compiled and simulated successively in Visual DSD software. The simulation results show that the four kinds of sub-tiles in the motif combine to their neighbors one after another with a certain time delay and finally form into 4-arm DNA tiles. The formation of the 4th arm of a 4-arm DNA tile indicates that all the 4-arm DNA tiles have been assembled, which implies high productivity of the 4-arm DNA tiles. We also analyze the time responses of the DNA sequence circuit by adjusting the concentration proportions of reactants and/or ordering bind and unbind rates of toeholds in simulation. These simulation results demonstrate that high concentration proportions of reactants and/or toeholds reacting at ascending order rates can shorten the time response more sharply than that low concentration proportion of reactants and/or in a descending order. The motif furthers the integration for DNA sub-tile self-assembly and DNA strand displacement. Copyright © 2015 American Scientific Publishers.

关键词： DNA

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A visually inspired variational method for automatic image registration

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Cehui Xuebao/Acta Geodaetica et Cartographica Sinica 2015年第8期44卷 893-899页

作者： Wang, Huixian Jin, Huijia Lei, Chengqiang Jiang, Wanshou Wang, Yan Key Laboratory of Technology in Geo-spatial Information Processing and Application System Institute of Electronics Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing Wuhan University Wuhan430079 China Electronic & Optical Engineering Department Mechanical Engineering College Shijiazhuang050003 China Institute of Information in Remote Sensing in Beijing Beijing100192 China

A visually inspired variational method for automatic image registration is proposed to solve local deformation which traditional global registration model cannot well satisfy. The variational model considers local transformation, global smoothness and visual constraints. To account for intensity variations, we incorporate change of local contrast and brightness into our model. Firstly, the data entry of registration model is built according to the root-mean-square error of intensity;secondly, adaptive constraint using H1 half norm is used to ensure the global smooth in the model;finally, in order to make sure that the spatial attributes of the image satisfy the visual requirements and without distortion, the linear features are used as priori constraints. During the solution of model parameters, the whole image is used to globally estimate the transformation parameters, and then local estimation of the parameters is taken in a small neighbor. The entire procedure is built upon a multi-level differential framework, and the transformation parameters are calculated iteratively, which can consider both global smoothness and local distortion. To assess the quality of the proposed method, ZY-3 satellite images were used. Visual and quantitative analysis proved that the proposed method can significantly improve the registration precision. ©, 2015, SinoMaps Press. All right reserved.

关键词： Image registration

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A Multi-Agent Model of Opinion Formation with Group Polarization 33

A Multi-Agent Model of Opinion Formation with Group Polariza...

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第三十三届中国控制会议

作者： LIU Qipeng ZHAO Jiuhua WANG Xiaofan Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

ISBN: (纸本)9781479947249

This paper studies the opinion dynamics with group *** say a process of opinion formation is polarizing if the final opinions after group discussion are more divergent than individuals’initial *** capture this phenomenon,we develop a multi-agent model of opinion formation in which each agent forms her opinion according to all arguments available to her,and during interacting with other agents,she assimilates the arguments of neighbors in a biased manner which can be represented by a modified Polya’s Urn *** find that biased assimilation of arguments can result in group polarization effectively,especially under the condition when the agents are relatively isolated in the network.

关键词： Multi-agent systems,Opinion dynamics,Group polarization,Biased assimilation,Polya's Urn process

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A Modified LQG Benchmark for Economic Performance Assessment of Model Predictive control 33

A Modified LQG Benchmark for Economic Performance Assessment...

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第三十三届中国控制会议

作者： DUAN Meimei LI Ning LI Shaoyuan Department of Automation Shanghai Jiao Tong UniversityKey Laboratory of System Control and Information ProcessingMinistry of Education of China

ISBN: (纸本)9781479947249

In this paper, an improved LQG benchmark for the economic performance assessment of model predictive control system is presented. The LQG benchmark is obtained by a regression of a series of discrete points calculated through solving LQG problem. The discrete points obtained by traditional method present an unbalanced distribution, thus leading to an unsatisfied regression curve especially at the lower part where the distribution is sparse. However, the lower part of the LQG trade-off curve is more significant for the economic performance assessment as they are closer to the minimum variance. To avoid this distribution phenomenon and get a better regression performance curve, we change the form of the LQG benchmark and propose a mathematic method which uses an exponential increasing weighting factor to build the discrete points. The effectiveness of the proposed approach is illustrated by a simulation example to economic performance assessment of a model predictive control system.

关键词： model predictive control,economic performance assessment,modified LQG benchmark,steady-state optimization

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Block Compressed Sensing Based Background Subtraction for Embedded Smart Camera 33

Block Compressed Sensing Based Background Subtraction for Em...

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第三十三届中国控制会议

作者： LUO Rujun WANG Yiyin CHEN Cailian YANG Bo GUAN Xinping Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China

ISBN: (纸本)9781479947249

Embedded smart camera networks represent an emerging direction of next generation surveillance systems.A big challenge to implement computer vision applications on embedded cameras is the limit of memory and computational *** background subtraction algorithms play a fundamental yet significant role of most computer vision applications,their memory requirements and computational efficiency should be taken into account in the *** this paper,we propose an efficient hierarchical light-weight background subtraction approach by combining the pixel-level and the block-level background subtraction modules into a single framework so that it is capable of dealing with dynamic background *** compressed sensing theory is for the block-level module design to save memory and improve computational ***,considering the continuity of foreground objects,a novel integral filter is designed for the pixel-level module to eliminate perturbations *** results on various videos demonstrate superior performance of the proposed *** proposed light-weight algorithm only requires about 6.5 bytes per pixel,and is applicable for embedded smart ***,as each block is processed independently,it can be implemented in parallel.

关键词： Background subtraction,Hierarchical,Block compressed sensing,Light-weight,Real-time

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A Study of MEWMA controller for drifted MIMO non-Squared process 33

A Study of MEWMA controller for drifted MIMO non-Squared pro...

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第三十三届中国控制会议

作者： Gong Qingsong Yang Genke Pan Changchun Department of Automation and Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai Jiao Tong University

ISBN: (纸本)9781479947249

This paper studied the MEWMA controllers used to control the drifted MIMO non-squared process in semiconductor manufacturing industry. We compared the performance of the existing controllers. In order to overcome the case that existing singular matrix in the controllers, we proposed to use the Moore-Penrose inverse when matrix is not invertible. Through analysis of the stability of the controlled process, the stability condition is not relevant to what types the input takes. At last an example shows the effectiveness of our results.

关键词： MEWMA controller,drifted MIMO non-squared process,run-to-run control

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Multi-Leader Multi-Follower Game Based Power control for Downlink Heterogeneous Networks 33

Multi-Leader Multi-Follower Game Based Power Control for Dow...

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第三十三届中国控制会议

作者： HAN Qiaoni YANG Bo CHEN Cailian GUAN Xinping Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China

ISBN: (纸本)9789881563842

Heterogeneous networks(HetNets) are expected to be an integral component of expansion of 3G and emerging 4G network deployments. However, in order to achieve the quality-of-service(QoS) requirements of all the users, interference mitigation techniques need to be developed to manage the radio resources of macrocells and small cells. In this paper, we focus on the optimal power allocation for downlink HetNets. Specifically, we take into account the different deployment targets and service requirements of macrocell base stations(BSs) and small cells(corresponding to picocells and femtocells), and classify them into two categories according to their deployers, namely, operator deployed BSs(OBSs) and customer deployed BSs(CBSs). Then, the framework of Stackelberg game with multiple leaders and multiple followers is adopted to investigate the downlink power allocation problem. To obtain the Stackelberg equilibrium(SE) distributively, we develop the power updating rules for both OBSs and CBSs. Moreover, the implementations of the proposed game are discussed. At last, numerical results show the convergence of the proposed game and the uniqueness of the SE.

关键词： HetNets,power control,Stackelberg game,multi-leader multi-follower

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