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The 26th Chinese Control and Decision Conference (2014 CCDC)最新文献

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H∞ deconvolution filter design for time-delay systems via equivalent transformation 基于等效变换的时滞系统H∞反卷积滤波器设计
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852665
Fuqiang You, Hui Li
{"title":"H∞ deconvolution filter design for time-delay systems via equivalent transformation","authors":"Fuqiang You, Hui Li","doi":"10.1109/CCDC.2014.6852665","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852665","url":null,"abstract":"This paper proposes an H∞ deconvolution design for linear systems with output state time delay. The basic idea of our study is to eliminate the time delays of system and transform it to a delay-free system by the bicausal change of coordinates approach. Then, we design H∞ deconvolution for the delay-free systems, which is equivalent to the original system with time delays. We analyze the general structure and innovation structure of the H∞ deconvolution filter. Based on the bounded real lemma, a time domain design approach and a sufficient condition for the existence of deconvolution filter are presented. The prarameterization of the deconvolution filter could be completed by solving a Riccati equation. The proposed method is useful for the case that does not require statistical information about disturbances.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126011697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An improved MRI denoising algorithm based on wavelet shrinkage 一种改进的基于小波收缩的MRI去噪算法
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852687
Kaikai Song, Q. Ling, Zhaohui Li, Feng Li
{"title":"An improved MRI denoising algorithm based on wavelet shrinkage","authors":"Kaikai Song, Q. Ling, Zhaohui Li, Feng Li","doi":"10.1109/CCDC.2014.6852687","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852687","url":null,"abstract":"Magnetic resonance imaging (MRI) is very important in medical diagnosis. Denoising is a critical step for MRI diagnosis. Wavelet shrinkage is an efficient denoising method. It can be further classified into two types, the threshold method and the proportional-shrink method. However, both methods have their disadvantages. When the threshold method is implemented, the noise cannot be perfectly removed under a hard threshold while the denoised image may have fuzzy edges with a soft threshold. Furthermore, when the noise is too strong, the noise removal may not be enough by the threshold method. The proportional-shrink method requires that the variance field of the wavelet coefficients should change smoothly and the noise should obey a Gaussian distribution. If these assumptions are violated, the estimated ratios would not be precise so that too much texture information may be removed and the image can be distorted. This paper presents an improved method to combine the above two methods. By combining the processed results together, the improved method can achieve a good balance between denoising and retaining the texture information. We verify the efficiency of our method through some simulated data from an open database.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A novel approach for image classification 一种新的图像分类方法
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852938
Sonhao Zhu, Jiawei Liu, Ronglin Hu
{"title":"A novel approach for image classification","authors":"Sonhao Zhu, Jiawei Liu, Ronglin Hu","doi":"10.1109/CCDC.2014.6852938","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852938","url":null,"abstract":"The overwhelming amounts of digital images on the Web and personal computers have triggered the requirement of an effective tool to classify each image into appropriate semantic category based on the image content has become an increasingly difficult and laborious task. To deal with this issue, we propose a novel multi-view semi-supervised learning framework to improve the prediction performance of image classification by using multiple views of an image. In the training process, labeled images are first adopted to train view-specific classifiers independently using uncorrelated and sufficient views, and each view-specific classifier is then iteratively re-trained using initial labeled samples and additional pseudo-labeled samples based on a measure of confidence. In the classification process, the maximum entropy principle is utilized to assign appropriate category label to each unlabeled image using optimally trained view-specific classifiers. Experimental results on a general-purpose image database demonstrate the effectiveness and efficiency of the proposed multi-view semi-supervised scheme.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"2 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126141851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Merging several business process variants 合并多个业务流程变体
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6853112
Huifang Li, Harbi Mohamed El-Amine, H. Mohamed
{"title":"Merging several business process variants","authors":"Huifang Li, Harbi Mohamed El-Amine, H. Mohamed","doi":"10.1109/CCDC.2014.6853112","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6853112","url":null,"abstract":"In the last decade, modern sophisticated process-aware information systems have been taken place to provide a new possibility of process model configurations at build-time and enable process instance changes during runtime. However, this advantage has generated another challenge, which is the high price of configuration and maintenance of the big number of the derived process model variants (process variants for short). This paper proposes an algorithm that accepts as input a collection of process variants and generates a merged model. This algorithm has four main steps: determine the distinct blocks, common blocks, placeholders and finally construct the merged model. The merged model contains two types of blocks, common blocks and placeholders; the first block captures the commonalities of the process variants, and the second one captures the differences between them. In this way, the merged model is kept as small as possible. Furthermore, this merged model can subsumes the behaviors of all input models, ensures the trace back of each element from which input model is originated, and derives any of the input models from the merged model. Existing solutions either fail in respecting these requirements or allow only for merging pairs of process models. However, our algorithm allows for merging a collection of process variants at the same time.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123289839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Lyapunov stability analysis for self-excitation of induction generators 感应发电机自激的Lyapunov稳定性分析
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852637
Haitao Li, Ziguang Lu
{"title":"Lyapunov stability analysis for self-excitation of induction generators","authors":"Haitao Li, Ziguang Lu","doi":"10.1109/CCDC.2014.6852637","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852637","url":null,"abstract":"Based on Lyapunov stability theory, a holistic analysis approach is proposed for self-excited induction generator under no-load in the stationary reference frame with the transient mathematic model. Through analysis for initial transient states, a sufficient condition is fixed to be the limit cycle. The analytic formulas of the stator frequency, critical excitation capacitance and critical rotor speed are thus obtained. The self-excitation build-up can then be judged. Good agreement between measured values and calculated values verifies accuracy and validity of the critical analytic formulas, showing generality and engineering application value.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123742428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Global convergence of a class of nonlinear dynamical networks 一类非线性动态网络的全局收敛性
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852232
Ao Dun, Di Liang, Haijing Liu
{"title":"Global convergence of a class of nonlinear dynamical networks","authors":"Ao Dun, Di Liang, Haijing Liu","doi":"10.1109/CCDC.2014.6852232","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852232","url":null,"abstract":"This paper considers the global convergence of a class of nonlinear dynamical networks, and the subsystems are discrete time pendulum-like systems. Different from most of the existing results, two kinds of interconnections are considered in view of the fact that the subsystems of networks may have more than one kind of interconnection between each other. The Kalman-Yakubovich-Popov (KYP) lemma and the Schur complement formula are applied to get novel criteria, which have the forms of linear matrix inequalities (LMIs). The Kronecker product is presented which can be used to handle a class of LMI problems. The test of the global convergence of a network of pendulum-like systems is separated into the test of the global convergence of several independent pendulum-like systems. Furthermore, a controller design method based on LMIs is provided. Finally, a numerical example is presented to illustrate the efficiency and applicability of the proposed methods.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123775322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of population controllability and prediction of population structure based on constraint system 基于约束系统的人口可控性分析与人口结构预测
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852437
Yue Xiao-ning, Meng Zhao-jia, Xie Feng-dan
{"title":"Analysis of population controllability and prediction of population structure based on constraint system","authors":"Yue Xiao-ning, Meng Zhao-jia, Xie Feng-dan","doi":"10.1109/CCDC.2014.6852437","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852437","url":null,"abstract":"It is established that population structure prediction time-varying restriction system model, and its controllability of the system is analyzed through grey system theory and control theory. Based on Liapunov central limit theorem, the conclusion that child-bearing age of women is subject to the normal distribution is obtained, and the density function of fertility age is given. Fertility restricted function is introduced, and we define population migration quantity as control variable, and state feedback gain matrix is established by fertility restricted function, on the basis of which, the discrete time-varying population structure restriction system is established, at the same time its controllability is analyzed by the fertility restriction function and population structure is predicted in a closed region. Finally, error analysis is made through the model, and accuracy and dependability of the model are proved.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125693905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the key influencing factors of the food industrial enterprises' integrity & credit in China based on DEMATEL method 基于DEMATEL方法的中国食品工业企业诚信信用关键影响因素分析
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852134
L. Hongwei, Yang Caili, Tao Min
{"title":"Analysis of the key influencing factors of the food industrial enterprises' integrity & credit in China based on DEMATEL method","authors":"L. Hongwei, Yang Caili, Tao Min","doi":"10.1109/CCDC.2014.6852134","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852134","url":null,"abstract":"The influencing factors indexes system of food industrial enterprises' integrity & credit is constructed from enterprise, government, market, society and consumer. It is difficult to decide accurately which factor has the greatest influence and influenced degree on the integrity & credit because there are the complicated, interactive and restrictive influencing relations between each pair of the influencing factors in the practical process of its building and management. In order to solve it, we consider the direct influence and restriction relations among the influencing factors, and calculate the integrative influence and influenced degrees of each factor by DEMATEL (Decision-Making Trial and Evaluation Laboratory) approach. It is concluded that the key influencing factors are enterprise's development strategy, the quality of the ordinary employees, market information asymmetry, food production technology and the production process, the quality of manager, quality safety admittance system, the construction of social honesty and faith. Some advice is proposed to improve food industrial enterprises' integrity & credit.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114885928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tuning method of proportional differential controller for delay-time system based on polynomial approximation 基于多项式逼近的时滞系统比例微分控制器整定方法
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852200
Ling Xu, F. Ding, Dengfeng Liu, Baoguo Xu
{"title":"Tuning method of proportional differential controller for delay-time system based on polynomial approximation","authors":"Ling Xu, F. Ding, Dengfeng Liu, Baoguo Xu","doi":"10.1109/CCDC.2014.6852200","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852200","url":null,"abstract":"This paper proposes a design method of the proportional integral derivative controller. The controller is used to a delay-time system. A polynomial approximation method is studied to the delay-time system. The controller is designed based on the approximation model and used to the delay-time system. Some numerical examples are illustrated to show the effective of the proposed method.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115029134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Launch control strategy for AMT vehicles based on ADRC 基于自抗扰控制器的AMT车辆启动控制策略
The 26th Chinese Control and Decision Conference (2014 CCDC) Pub Date : 2014-07-14 DOI: 10.1109/CCDC.2014.6852252
G. Yuan, Liu Qifang, Li Chao, Chen Hong
{"title":"Launch control strategy for AMT vehicles based on ADRC","authors":"G. Yuan, Liu Qifang, Li Chao, Chen Hong","doi":"10.1109/CCDC.2014.6852252","DOIUrl":"https://doi.org/10.1109/CCDC.2014.6852252","url":null,"abstract":"Launch control is a complex issue which requires keeping the engine running, making the launch process of the vehicle smooth and fast. According to the diversity and the uncertainty of launch conditions and the complex control requirements, an active disturbance rejection controller (ADRC) is designed by the speed tracking control. Moreover, a model of the clutch system is given based on the dynamics of the system, which is a second-order equation. In order to verify the controller's effectiveness, a powertrain model of a medium-sized truck about AMT vehicles is established. The model includes an engine, a clutch, a transmission, a main reducing gear and wheels. And some simulations are carried out in various working conditions according to the actual situation. Compared the performance to the traditional PID controller's and analyzing the results of simulations, the active disturbance rejection controller provides a good performance in AMT vehicles' launch progress and shows good adaptability in various working conditions.","PeriodicalId":380818,"journal":{"name":"The 26th Chinese Control and Decision Conference (2014 CCDC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115203843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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