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2012 International Conference on System Science and Engineering, ICSSE 2012

作者： Fan, Bi Zhang, Geng Li, Han-Xiong Department of Systems Eng. and Eng. Management City University of Hong Kong Hong Kong Hong Kong School of Mechanical and Electrical Engineering Central South University Changsha China State Key Lab. of High Performance Complex Manufacturing Central South University China

ISBN: (纸本)9781467309455

An important characteristic of real-world learning process is that the data frequently contains uncertainties. The uncertainties in the datasets deteriorate the learning process. Hence, to properly represent and handle the uncertainty problem is one of the key issues in the decision learning system. This paper offers a multiple models fusion method to address the uncertainty problem, by conducting the fusion of two models, Bayesian classifier and Probabilistic based Noise Aware Support Vector Machine. Specifically, we take the advantage of noise-insensitive characteristic of the Naïve Bayesian classifier, to enhance the noise-tolerant ability of probabilistic information based Support Vector Machine. The method fuses the probabilistic decision information obtained from the two classifiers in a flexible way to give the final decision. Furthermore, the multiple models fusion method is evaluated on an artificial dataset for a classification task. The experiment results show good performance when compared with using only one learning technique in the noise environment. © 2012 IEEE.

关键词： Support vector machines

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Embedded Vision-Based Autonomous Move-to-Grasp Approach for a Mobile Manipulator

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INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC systems 2012年第6期9卷

作者： Jiao, Jile Ye, Shuguang Cao, Zhiqiang Gu, Nong Liu, Xilong Tan, Min Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing Peoples R China Deakin Univ Ctr Intelligent Syst Res Waurn Ponds Vic Australia

This paper proposes a vision-based autonomous move-to-grasp approach for a compact mobile manipulator under some low and small environments. The visual information of specified object with a radial symbol and an overhead colour block is extracted from two CMOS cameras in an embedded way. Furthermore, the mobile platform and the postures of the manipulator are adjusted continuously by vision-based control, which drives the mobile manipulator approaching the object. When the mobile manipulator is sufficiently close to the object, only the manipulator moves to grasp the object based on the incremental movement with its head end centre of the end-effector conforming to a Bezier curve. The effectiveness of the proposed approach is verified by experiments.

关键词： Mobile manipulator Embedded vision Move-to-grasp Bezier curve

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Unscented particle filter with systematic resampling localization algorithm based on RSS for mobile wireless sensor networks

Unscented particle filter with systematic resampling localiz...

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8th Annual International Conference on Mobile Ad-hoc and Sensor Networks (MSN)

作者： Wang, Zhengjie Zhao, Xiaoguang Wang, Zhengjie Qian, Xu Shandong Univ Sci & Technol Coll Informat & Elect Engn Qingdao Peoples R China Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing Peoples R China China Univ Mining & Technol Beijing Sch Mech Elect & Informat Engn Beijing Peoples R China

ISBN: (纸本)9780769549613;9781467358088

We consider the problem of mobile sensor node localization and propose an unscented particle filter algorithm in wireless sensor networks (WSNs) consisting of mobile nodes and static anchor nodes. Because the received signal strength (RSS) varies obviously, we employ particle filter to decrease the bad effect. We first form the system state model, mobile model, and RSS model, and then apply unscented particle filter and utilize the systematic resample to decrease the degeneration of the particle. We eliminate the uncertain of the RSS in wireless channel and get accurate location of mobile nodes. The predicted position of the mobile node is constrained by its velocity and the measurement value of RSS. We do a lot of simulation to validate the algorithm by assigning different parameters. Simulation results show that the algorithm enhances the localization accuracy of mobile node compared with the standard particle filter algorithm.

关键词： Mobile wireless sensor networks localization received signal strength (RSS) unscented particle filter systematic resampling

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Human Behavior Imitation for a Robot to Play Table Tennis

Human Behavior Imitation for a Robot to Play Table Tennis

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The 24th Chinese control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

作者： Qizhi Wang Xianqiang Zhang De Xu School of Computer and Information Technology Beijing Jiaotong University Beijing 100044 PR Chin State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese

The main purpose of this paper is to make table tennis robots complete the hit table tennis ball action by imitating human’s behavior. The main strategy is to record a video of action which people played the table tennis, then analysis the video of the racket trajectory. The racket in the image is extracted by image processing when the each frame is captured in the video. Then three-dimensional coordinates of the center of the racket and racket posture are obtained via PnP positioning approach based on the intrinsic parameters of the camera. The table tennis robot will off-line learn to complete the imitation of basic actions of the racket trajectory and postures. A large number of experimental data is used to establish basic actions of table tennis robot.

关键词： Imitation off-line learning the trajectory of the racket table tennis robot PnP positioning method

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Extracting opinion explanations from Chinese online reviews

Extracting opinion explanations from Chinese online reviews

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IEEE International Conference on Intelligence and Security Informatics, ISI

作者： Yuequn Li Wenji Mao Daniel Zeng Luwen Huangfu Chunyang Liu State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Department of Management Information Systems University of Arizona Tucson Tucson AZ USA CNCERT/CC Beijing China

Opinion mining has gained increasing attention and shown great practical value in recent years. Existing research on opinion mining mainly focuses on the extraction of lexicon orientation and opinion targets. The explanations of opinions, which are potentially valuable for many applications, are totally ignored. To address this specific research challenge, in this paper, we propose an approach to extract the explanation of reason and/or consequence behind an opinion via learning word pairs and using causal indicators from Chinese online reviews. We also improve our word pair based method by constructing clusters of word paris. Experiments on a Chinese business review corpus show that our method is feasible and effective.

关键词： Feature extraction Accuracy Semantics Data mining Thesauri Cities and towns Probability

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Acquiring netizen group's opinions for modeling food safety events

Acquiring netizen group's opinions for modeling food safety ...

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IEEE International Conference on Intelligence and Security Informatics, ISI

作者： Zhangwen Tan Wenji Mao Daniel Zeng Xiaochen Li Xiuguo Bao State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Department of Management Information Systems University of Arizona Tucson Tucson AZ USA CNCERT/CC Beijing China

Food safety events are typical public security events that draw great public concern. In food safety events, millions of netizens pay close attention to the event, express their opinions online and thus influence the decisions of government or food producers. Modeling netizen groups, especially the dynamics of their opinions in these events, can help us understand the mechanism and evolvement of such events and provide valuable insights for social management. However, conventional computational models, such as agent-based models, are usually constructed manually. In this paper, we propose an approach to acquiring netizen group's opinions from online comments to facilitate the modeling of food safety events. We conduct experimental study on typical events happened in China and empirically evaluate the performance of our proposed approach. The results verify the effectiveness of the approach.

关键词： Safety Internet Computational modeling Government Syntactics Feature extraction Media

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Application of fuzzy PID controlling technique in downhole power supply

Application of fuzzy PID controlling technique in downhole p...

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31st Chinese control Conference, CCC 2012

作者： Xinchao, Zhang Pengfeng, Li Hongxin, Chen Zengguang, Hou State Key Laboratory of Intelligent Control and Management of Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China CNOOC Research Institute Beijing 100025 China

ISBN: (纸本)9789881563811

This paper presents a novel downhole power supply control system using fuzzy PID control strategy. The control system is powered by a downhole turbine generator which generates AC voltage. The output of the turbine generator is processed through a full wave bridge rectifier and filter, and then input to the phase-shifted full-bridge PWM controller. A digital signal processor TMS320F2809 is used as the main control unit of the regulator control module. In order to verify the effectiveness of this system, a fuzzy proportion integration differentiation (F-PID) controller is used to control the phase-shifted full-bridge switching power supply, and the results presented that the controller can ensure the stability for power supply. © 2012 Chinese Assoc of Automati.

关键词： Fuzzy control

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Emergency traffic evacuation control based on the orthogonal experimental design method

Emergency traffic evacuation control based on the orthogonal...

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International Conference on Intelligent Transportation

作者： Yisheng Lv Fenghua Zhu Qinghai Miao Peijun Ye Songhang Chen State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Graduate University of Chinese Academy of Sciences Beijing China

Evacuees' behaviors have a significant impact on evacuation efficiency. Evacuation clearance time is one of the key indicators in the evacuation planning and management. Evacuees' departure time choice, destination choice and route choice behavior based on real-time traffic information are three crucial factors used to estimate evacuation clearance time. In this paper, we use the orthogonal experimental design method to determine values of these three factors simultaneously, which can reduce evacuation clearance time significantly. Once we obtain these values, we can guide evacuees' departure time choice, destination choice and route choice behavior to approximate these values and evacuation efficiency will improve greatly. The dynamic traffic evacuation process is modeled using a rule-based multi-agent microscopic traffic simulation system called TransWorld. The simulation experiment results illustrate the effectiveness and reliability of the proposed method. The proposed methodology, computational results and discussions can be used for future emergency evacuation planning and management.

关键词： Transportation Computational modeling Real-time systems Design methodology Object oriented modeling Planning Traffic control

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A Survey of Urban Traffic Signal control for Agent Recommendation System

A Survey of Urban Traffic Signal Control for Agent Recommend...

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15th International IEEE Conference on Intelligent Transportation systems (ITSC)

作者： Chen, Cheng Zhu, Fenghua Ai, Yunfeng Chinese Acad Sci State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Chinese Acad Sci Cloud Comp Ctr Dongguan Res Inst CASIA Dongguan 523808 Peoples R China Grad Univ Chinese Acad Sci Coll Comp & Commun Engn Beijing 100049 Peoples R China

ISBN: (纸本)9781467330633

Dynamic changes and uncertainty in traffic environments directly spawned lots of strategies about traffic signal control (TSC). Meanwhile, the differences in the traffic environment and demand of control have a significant impact on the performance of strategies about TSC. In order to enable dynamic selection of the most appropriate TSC agents for each specific traffic state in urban traffic transportation system, we firstly propose a survey about urban TSC, which helps us to understand the characteristics of TSC strategies. This survey focuses on the traffic environment about the application of TSC and the demand of TSC. Then, based on the aforementioned survey, we propose one recommendation mechanism for agent-based distributed and adaptive platform for transportation systems to adapt to traffic dynamic characteristic.

关键词： Roads Vehicles Detectors Traffic control Vehicle dynamics Real-time systems

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Data-driven Artificial System of Parallel Emergency management for Petrochemical Plant

Data-driven Artificial System of Parallel Emergency Manageme...

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10th World Congress on Intelligent control and Automation (WCICA)

作者： Shang, Xiuqin Xiong, Gang Cheng, Changjian Liu, Xiwei Chinese Acad Sci Beijing Engn Res Ctr Intelligent Syst & Technol Inst Automat State Key Lab Management & Control Pr Complex Sys Beijing 100190 Peoples R China Chinese Acad Sci Cloud Comp Ind Technol Innovat & Incubat Ctr Dongguan Res Inst CASIA Dongguan Guangdong 523808 Peoples R China

ISBN: (纸本)9781467313988

A data-driven system of parallel emergency management is designed to manage production safety emergencies caused by natural or human-induced disasters in the petrochemical plant, combining with the parallel management theory based on ACP (Artificial systems, Computational Experiment, and Parallel Execution) approach. Data is acquired by use of techniques including video monitoring and detection, which is the premise of building Artificial System. Based on mass data of the key state variables, Artificial System is designed by using fussy expert system and other intelligent modeling algorithms. Finally, the parallel emergency solution is provided for emergency management in one case of ethylene plant, and it can make a great improvement to the emergency management of the plant.

关键词： Parallel Emergency management ACP Data-driven

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