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International Conference on Informative and Cybernetics for Computational Social Systems (ICCSS)

作者： Huayong Ge Shujuan Fang Fashion Technology Ministry of Education Donghua University China Engineering Research Center of Digitized Textile Shanghai China

According to the shadows and shading constraints in the Lambert illumination model, the paper proposes a method to detect image forgery. This method describes a multitude of constraints in shading and shadows based on the direction of the light source, by analyzing the intersection of the wedges to verify the images. The linear programming problem is employed to confine the direction and angle in the wedge, and the conjugate gradient methods are employed to describe the shading to verify the direction of the light source. The tampering image can be determined by the inconsistency in light source direction with shading and the intersection with wedges. Combining both the shading and shadow make the parameters in wedge more accurate. By the improved corresponding algorithms, the experimental results show that the light source direction and consistency can be calculated accurately in the shadows and shading.

关键词： Light sources Mathematical model Accuracy Lighting Shape Software Digital images

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Stochastic Synchronization of Multi-Delays Neutral-Type Neural Networks with Markovian Switching and Brownian Noise

Stochastic Synchronization of Multi-Delays Neutral-Type Neur...

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第27届中国控制与决策会议

作者： Xueqing Yang Wuneng Zhou Jun Yang Jun Zhou the College of Information Sciences and Technology Donghua University Engineering Research Center of Digitized Textile & Fashion Technology Ministry of EducationDonghua University

In this brief,the problem of stochastic synchronization of multi-delays neutral-type neural networks with Markovian switching and Brownian noise is ***,we designed a control law of stochastic synchronization of the multidelays neural-type neural ***,using the Lyapunov functional and M-matrix approach,we obtained a criterion under which the drive and response neutral-type multiple time-delays neural networks with Brownian noise and Markovian switching are stochastic *** synchronization condition is expressed as linear matrix inequality which can be easily solved by ***,Some numerical examples are provided to illustrate the effectiveness of the method and result obtained in this brief.

关键词： Stochastic synchronization,Markovian switching,neutral-type neural networks,multi-delay..

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An endocrine cooperative particle swarm optimization algorithm for routing recovery problem of wireless sensor networks with multiple mobile sinks

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Information Sciences 2015年第1期300卷 100-113页

作者： Hu, Yi-Fan Ding, Yong-Sheng Ren, Li-Hong Hao, Kuang-Rong Han, Hua Engineering Research Center of Digitized Textile and Fashion Technology Ministry of Education Donghua University Shanghai 201620 China Shandong Computer Science Center (National Supercomputer Center in Jinan) Jinan 250014 China College of Information Sciences and Technology Donghua University Shanghai 201620 China Shandong Provincial Key Laboratory of Computer Network Jinan 250014 China College of Electronic and Electrical Engineering Shanghai University of Engineering Science Shanghai 201620 China

In the wireless sensor networks with multiple mobile sinks, the movement of sinks or failure of sensor nodes may lead to the breakage of the existing routes. In most routing protocols, the query packets are broadcasted to repair a broken path from source node to sink, which cause significant communication overhead in terms of both energy and delay. In order to repair broken path with lower communication overhead, we propose an efficient routing recovery protocol with endocrine cooperative particle swarm optimization algorithm (ECPSOA) to establish and optimize the alternative path. In the ECPSOA, mutation direction of the particle is determined by multi-swarm evolution equation, and its diversity is enriched by the endocrine mechanism, which can enhance the capacity of global search and improve the speed of convergence and accuracy of the algorithm. By using this method, the alternative path from source nodes to the sink with the optimal QoS parameters can be selected. Simulation results show that our routing protocol significantly improves the robustness and adapts to rapid topological changes with multiple mobile sinks, while efficiently reducing the communication overhead and the energy consumption. © 2014 Elsevier Inc. All rights reserved.

关键词： Endocrine cooperative mechanism Multiple mobile sinks PSO algorithm Routing recovery Wireless sensor networks

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Adaptive bidirectional relay selection and optimal power allocation of cognitive networks

Adaptive bidirectional relay selection and optimal power all...

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The International Conference on Future Communication,Information and Computer Science(ICFCICS 2014)

作者： J.L.Jiang R.H.Qiu College of Information Sciences and Technology Donghua UniversityShanghaiChina Engineering Research Center of Digitized Textile & Fashion TechnologyMinistry of EducationDonghua University

In order to improve the average total rate of secondary users,this paper proposes a new Bidirectional Relay Selection *** the consideration of the joint relay node and the bidirectional relay link transmission characteristics,this paper is also considering the direct link transmission *** the direct link transmission characteristics are superior to relay channel,it does not use the relay *** to the channel Condition,it will choose the right way to form an Adaptive Bidirectional Relay Selection scheme(ABRS).On the basis of the primary user restrictions,this paper proposes a strategy of the Optimal Power Allocation(OPA).Under the basis of maximizing the total rate of one-way links,this paper adds Lagrange factor model to *** simulation results show that the proposed method can significantly improve transmission rate of the secondary users.

关键词： average total rate bidirectional relay selection power allocation

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High-speed High-precision Real-time Data Monitoring System for Power Electronic Converter

High-speed High-precision Real-time Data Monitoring System f...

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2012 International Conference on Power Electronics engineering and Computer technology(PEECT 2012)

作者： Gang Yang Peide Sun Zhengde Yu Chao Ye College of Information Science and Technology Donghua University Engineering Research Center of Digitized Textile & Fashion Technology Ministry of Education Donghua University Unit 91656Chinese People's Liberation Army

This paper designs a high-speed high-precision real-time data monitoring system for power electronic converter. Through SPI(Serial Peripheral Interface), the DSP requiring data monitoring sent data to ARM with Ethernet interface. After that, ARM sends the data to Lab VIEW through Ethernet interface. This paper uses Lab VIEW program to realize the receiving, grouping and display of multi-channel data.

关键词： Data Monitoring SPI Lab VIEW Ethernet

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Resampling to speed up consolidation of point clouds

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Mathematical Problems in engineering 2015年第1期2015卷

作者： Yang, Huanyu Hao, Kuangrong Ding, Yongsheng College of Information Sciences and Technology Donghua University Shanghai201620 China College of Information and Engineering Shanghai Open University Shanghai200233 China Engineering Research Center of Digitized Textile Fashion Technology Ministry of Education Donghua University Shanghai201620 China

Processing of large-scale scattered point clouds has currently become a hot topic in the field of computer graphics research. A supposedly valid tool in producing a set of denoised, outlier-free, and evenly distributed particles over the original point clouds, Weighted Locally Optimal Projection (WLOP) algorithm, has been used in the consolidation of unorganized 3D point clouds by many researchers. However, the algorithm is considered relatively ineffective, due to the large amount of the point clouds data and the iteration calculation. In this paper, a resampling method applied to the point set of 3D model, which significantly improves the computing speed of the WLOP algorithm. In order to measure the impact of error, which will increase with the improvement of calculation efficiency, on the accuracy of the algorithm, we define two quantitative indicators, that is, the projection error and uniformity of distribution. The performance of our method will be evaluated by using both quantitative and qualitative analyses. Our experimental validation demonstrates that this method greatly improves calculating efficiency, notwithstanding the slightly reduced projection accuracy in comparison to WLOP. © 2015 Huanyu Yang et al.

关键词： Iterative methods

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Nonlinear process identification in the presence of multiple correlated hidden scheduling variables with missing data

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AIChE Journal 2015年第10期61卷 3270-3287页

作者： Chen, Lei Khatibisepehr, Shima Huang, Biao Liu, Fei Ding, Yongsheng Engineering Research Center of Digitized Textile and Fashion Technology Ministry of Education Shanghai201620 China College of Information Sciences and Technology Donghua University Shanghai201620 China Institute of Automation Jiangnan University Wuxi214122 China Dept. of Chemical and Materials Engineering University of Alberta EdmontonABT6G 2G6 Canada Institute of Automation Jiangnan University Wuxi214122 China Engineering Research Center of Digitized Textile and Fashion Technology Ministry of Education Shanghai201620 China College of Information Sciences and Technology Donghua University Shanghai201620 China

Identification of nonlinear processes in the presence of noise corrupted and correlated multiple scheduling variables with missing data is concerned. The dynamics of the hidden scheduling variables are represented by a state-space model with unknown parameters. To assure generality, it is assumed that the multiple correlated scheduling variables are corrupted with unknown disturbances and the identification dataset is incomplete with missing data. A multiple model approach is proposed to formulate the identification problem of nonlinear systems under the framework of the expectation-maximization algorithm. The parameters of the local process models and scheduling variable models as well as the hyperparameters of the weighting function are simultaneously estimated. The particle smoothing technique is adopted to handle the computation of expectation functions. The efficiency of the proposed method is demonstrated through several simulated examples. Through an experimental study on a pilot-scale multitank system, the practical advantages are further illustrated. © 2015 American Institute of Chemical Engineers.

关键词： Nonlinear systems

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GA Based Placement Optimization for Hybrid Distributed Storage

GA Based Placement Optimization for Hybrid Distributed Stora...

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IEEE International Conference on High Performance Computing and Communications (HPCC)

作者： Yizi Wu Youtao Zhang College of Information Science and Technology Engineering Research Center of Digitized Textile & Fashion Technology Ministry of Education Donghua University Shanghai China Department of Computer Science University of Pittsburgh Pittsburgh PA U.S.A

The VOD (video on-demand) applications, in order to minimize access latency and improve quality of service, require periodically optimizing the placement of their large volume of video, courseware, and database files in data centers. Migration-enhanced data placement schemes allow data movement at runtime, which imposes significant overhead, particularly for hybrid distributed storage systems that consist of both SSDs and HDDs. In this paper, we propose a genetic algorithm based multi-objective optimization scheme for data placement and migration optimization in software defined storage systems. We prototype and evaluate the proposed scheme with comparison to simple heuristic designs. Our results show that our design acquires better nondominated resolution set and achieves around 15% access delay and migration cost reduction.

关键词： Optimization Distributed databases Servers Bandwidth Runtime Computer architecture Genetic algorithms

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Feed-forward-like decoupling control in coagulation bath of carbon fiber precursor

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Journal of Donghua University (English Edition) 2014年第2期31卷 155-159页

作者： Xu, Feng Ren, Li-Hong College of Information Science and Technology Donghua University Shanghai 201620 China Engineering Research Center of Digitized Textile and Fashion Technology of Ministry of Education Shanghai 201620 China

The coagulation bath system of carbon fiber precursor is a complicated and multivariable coupling system. Based on the model of industrial production, the full dynamic decoupling control of the coagulation bath system of carbon fiber precursor is achieved in combination with multivariable feed-forward-like decoupling and proportional-integral-differential (PID) control. Compared with the conventional PID decoupling control, the experiment results show that the proposed method has a better control effect. The use of the controller can achieve complete decoupling of three parameters from coagulation bath system. The method should have great applications. Copyright © 2014.

关键词： Two term control systems

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Performance prediction of carbon fiber protofilament based on SAGA-SVR

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Journal of Donghua University (English Edition) 2014年第2期31卷 92-97页

作者： He, Cong Ren, Li-Hong Ding, Yong-Sheng College of Information Science and Technology Donghua University Shanghai 201620 China Engineering Research Center of Digitized Textile and Fashion Technology Ministry of Education Donghua University Shanghai 201620 China

The existing optimized performance prediction of carbon fiber protofilament process model is still unable to meet the production needs. A way of performance prediction on carbon fiber protofilament was presented based on support vector regression (SVR) which was optimized by an optimization algorithm combining simulated annealing algorithm and genetic algorithm (SAGA-SVR). To verify the accuracy of the model, the carbon fiber protofilament production test data were analyzed and compared with BP neural network (BPNN). The results show that SAGA-SVR can predict the performance parameters of the carbon fiber protofilament accurately. Copyright © 2014.

关键词： Carbon fibers

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