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IEEE International Conference on Multimedia and Expo (ICME)

作者： Yu Bai Xuejin Chen CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application System University of Science and Technology of China Hefei Anhui China

ISBN: (纸本)9781467372596

We propose a novel superpixel algorithm based on Minimum Spanning Tree (MST), to generate superpixels efficiently while strictly adhere to object boundaries. The MST, which built by gradually removing strong edges of the image graph extracted from the image, is more sensitive to image local structures. Therefore, an efficient hierarchical clustering strategy is basically employed in our algorithm to segment the input image into superpixels based on the tree distance. To gradually merge the image pixels and remove texture noises, a multi-layer scheme with different resolutions of superpixels is proposed. In each layer, the graph is constructed from the lower layer and segmented into superpixels in a linear complexity with the node number in the graph. Because the node number in each layer is exponentially reduced, the computational time of our method mainly concentrates on the first few layers, which is linear with the number of image pixels. The experimental results conducted on the Berkeley Segmentation Dataset demonstrate that our method outperforms state-of-the-art methods both in terms of structure preservation and computational efficiency.

关键词： Image segmentation Image color analysis Image edge detection Clustering algorithms Partitioning algorithms Joining processes Colored noise

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A novel image splicing detection method based on the inconsistency of image noise

A novel image splicing detection method based on the inconsi...

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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Jing Dong Li Chen Jing Tian Xin Xu Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial System Wuhan University of Science and Technology Wuhan China

ISBN: (纸本)9781467386456

Aiming at localizing tampered image regions, a novel detection method is proposed. Based on the statistical properties of image features, we expose the tampered parts by dividing image into some sub-blocks and computing the noise variance of each ones. Then we choose Laplace fitting based on the maximal likelihood estimation method to decide the boundary between tampered regions and the original. Several examples are shown to demonstrate the proposed method's output. We also demonstrate the efficiency of our method in paper.

关键词： Estimation Splicing Fitting Forgery Feature extraction Digital images Noise measurement

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Correction to: Synchronization of coupled neural networks with infinite-time distributed delays via quantized intermittent pinning control

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Nonlinear Dynamics 2018年第3期94卷 2305-2305页

作者： Yang, Xinsong Feng, Yuming Yiu, Ka Fai Cedric Song, Qiang Alsaadi, Fuad E. School of Mathematical Sciences Chongqing Normal University Chongqing China Key Laboratory of Intelligent Information Processing and Control of Chongqing Municipal Institutions of Higher Education Chongqing China Department of Applied Mathematics Hong Kong Polytechnic University Hong Kong China College of Electrical Engineering Henan University of Technology Zhengzhou China Faculty of Engineering King Abdulaziz University Jeddah Saudi Arabia

The third author’s name was incomplete and incorrect in the original publication.

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A Combinatorial Condition and Boolean Functions with Optimal Algebraic Immunity

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Journal of systems Science & Complexity 2015年第3期28卷 725-742页

作者： JIN Qingfang LIU Zhuojun WU Baofeng ZHANG Xiaoming Key Laboratory of System and Control Academy of Mathematics and Systems Science Chinese Academy of Sciences Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science Chinese Academy of Sciences State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences

This paper first proposes an infinite class of 2k-variable Boolean functions with high nonlinearity and high algebraic degree. Then an infinite class of balanced Boolean functions are proposed by modifying the above Boolean functions. This class of balanced Boolean functions have optimal algebraic degree and high nonlinearity. Both classes have optimal algebraic immunity based on a general combinatorial conjecture.

关键词： Algebraic degree algebraic immunity balancedness Bent function Boolean function nonlinearity.

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Membrane algorithm with genetic operation and VRPTW-based public optimization system 11th

Membrane algorithm with genetic operation and VRPTW-based pu...

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11th International Conference on Bio-inspired Computing – Theories and Applications, BIC-TA 2016

作者： Duan, Yingying Zhou, Kang Qi, Huaqing Zhang, Zhiqiang School of Math and Computer Wuhan Polytechnic University Wuhan430023 China Department of Economics and Management Wuhan Polytechnic University Wuhan430023 China Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan430074 China

ISBN: (纸本)9789811036101

That combining membrane computing with optimization technology offers a new information interaction model for the research of problems in optimization filed. Based on this, a membrane algorithm owned six basic membranes is proposed to solve the defects of the slow convergence and the small diversity in solving vehicle routing problem with time window. In order to further improve the efficiency and the precision, some new rules are designed: for the former problem, a node classifier is introduced to improve the efficiency by filtering directly a plenty of in-feasible solutions;two methods for the latter problems: an uncertain segment crossover is designed in the corresponding membrane in order to explore directly two feasible segments and segment-node insertion operation is introduced in order to make two individuals inserted synchronously another path. In order to verify the effectiveness of the algorithm, a series of experiments are designed. Known through the results of experiments that these two properties of membranes make the search ability of the algorithm improving quickly for local and global exploration and node classifier improves effectively the running efficiency of this algorithm, which proves that membrane algorithm can accelerate the convergence speed and increase diversity of population. © Springer Nature Singapore Pte Ltd. 2016.

关键词： Membranes

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Dual-Tone Radio Interferometric Positioning systems for Multi-Target Localization Using a Single Mobile Anchor

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China Communications 2015年第1期12卷 25-35页

作者： LI Li'an WANG Yiyin MA Xiaoli CHEN Cailian GUAN Xinping Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China School of Electrical & Computer Engineering Georgia Institute of Technology

In this paper, a low-cost dualtone radio interferometric positioning system using a single mobile anchor is proposed to locate multiple targets at the same time. We name it mDRIPS. In mDRIPS, each target continuously transmits a dual-tone signal with its dedicated frequencies, and the mobile anchor receives the signals at different positions along its trajectory, Neither time synchronization between the mobile anchor and the targets nor time synchronization among the targets is required. We take the instability of targets clocks into consideration and develop an ESPRIT-type algorithm to estimate frequencies of each dual-tone signal. Furthermore, the time of arrival （TOA） of each target signal is extracted from the phase estimates of the received dual-tone signals. After measuring several TOAs at different locations along the anchor＇s trajectory, each target can be located. Since the frequency difference of the two tones of each dualtone signal is designed to be smaller than the channel coherence bandwidth, the same fading effect on these two tones can be eliminated. Moreover, the integer ambiguity problem due to phase wrapping is investigated, and a localization algorithm to deal with a simplified ambiguity problem is proposed. Numerical results demonstrate the efficiency of the proposed mDRIPS.

关键词： ranging localization mobile anchor radio interferometry oscillator instability

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Distributed ℓ2 — ℓ∞ state estimation for periodic systems with multiplicative noises

Distributed ℓ2 — ℓ∞ state estimation for periodic system...

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World Congress on Intelligent control and Automation (WCICA)

作者： Renquan Lu Jun-Yi Li Yong Xu Hui Peng Key Lab for loT and Information Fusion Technology of Zhejiang The Institute of Information and Control Hanzzhou Dianzi University Hanzzhou China School of Automation Guangdong Key Laboratory of LoT Information Processing Guangzhou China

ISBN: (纸本)9781467384155

This paper is concerned with the distributed ℓ 2 - ℓ ∞ state estimation for discrete time periodic systems with multiplicative noises. To reflect a more general practical situation, multiplicative noises are considered both in state and measurement. The desired distributed state estimators are designed such that the estimation error system is globally asymptotically stable with a guaranteed ℓ 2 - ℓ ∞ performance index. A sufficient condition, based on a periodical Lyapunov procedure, is obtained to guarantee the stability and the performance of the system. At last, a numerical example is provided to illustrate the applicability and the effectiveness of the proposed results.

关键词： Estimation error Symmetric matrices State estimation Noise measurement Automation Performance analysis Internet of things

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Automatic generation of semantic data for event-related medical guidelines 5th

Automatic generation of semantic data for event-related medi...

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5th Joint International Conference on Semantic Technology, JIST 2015

作者： Fan, Yuling Qiao, Rui Gu, Jinguang Huang, Zhisheng College of Computer Science and Technology Wuhan University of Science and Technology Wuhan430065 China Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System Wuhan430065 China Departments of Computer Science VU University Amsterdam Amsterdam1081HV Netherlands

ISBN: (纸本)9783319316758

Medical Guidelines pay an important role in medical decision making systems. Medical guidelines are usually involved with event-related actions or procedure. However, little research has been done on how event-related medical guidelines can be converted into its semantic representation such as RDF/OWL data. This paper proposes an approach of automatic generation of semantic data for event-related medical guidelines. This generation is achieved by using the logic programming language Prolog with the support of medical ontologies such as SNOMED CT. We will report the experiments with the automatic generation of the semantic data for event-related Chinese medical guidelines, and show the relevant results. © Springer International Publishing Switzerland 2016.

关键词： Decision making

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A general law of human mobility

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Science China(information Sciences) 2015年第10期58卷 24-37页

作者： LIANG Xiao ZHAO JiChang XU Ke Key Laboratory of Technology in Geo-spatial Information Processing and Application System Institute of Electronics Chinese Academy of Sciences School of Economics and Management Beihang University State Key Laboratory of Software Development Environment Beihang University

The intrinsic factors that drive human mobility have remained unclear for decades. Our observations from both intra-urban and inter-urban trips demonstrate a general law of human mobility. Specifically, the probability that a trip will occur is inversely proportional to the size of population located inside a circle with radius equal to the travel distance centered at the trip origin. A simple parameterless rank-based model is presented; this model can predict human flows with a convincing fidelity. Moreover, existing models can be implemented as special cases of our model, suggesting that our model is stable at more spatial scales. Our model also creates a fundamental bridge between individual mobility and social relationships.

关键词： human mobility social mobility general law rank-based model flux prediction

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Optimization of Ultrasound-assisted Extraction of Polyphenols from Periploca forrestii Schltr and Its Anti-allergic Activities

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Medicinal Plant 2016年第C2期7卷 42-47,54页

作者： Enming HU Huaguo CHEN Xin ZHOU Qingfang DENG Xingdong WU Sushan LU Chao ZHAO Xiaojian GONG Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment Guizhou Normal University Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine The Research Center for Quality Control of Natural Medicine Guizhou Normal University

[Objective] To optimize the extraction of total polyphenols from Periploca forrestii Schltr. [Methods]Response surface methodology was applied. A three-level,three-variable Box-Behnken Design was employed to obtain the best possible combination of extraction solvent( ethanol concentration 40%-80%),extraction time( 10 min- 50 min) and ratio of solution to raw material(10∶ 1- 15∶ 1,v/w) for maximum extraction yield oftotal polyphenols. Besides,anti-allergic capacity of P. forrestii polyphenols was evaluated by initiation ratio of hyaluronidase decomposition of sodium hyaluronate. [Results]The results showed that optimized extraction conditions wereethanol concentration57.33%,extraction time 33. 33 min and ratio of solvent to raw material 16. 11∶ 1. Under these conditions,the experimental yield was 6. 03 ± 0.10%,which is well in close agreement with the value( 6. 1%) predicted by RSM model. [Conclusion]Pharmacological test showed that *** polyphenols have excellent anti-allergic activity.

关键词： polyphenols allergic Periploca hyaluronate extracts ethanol rhinitis optimize instead supernatant

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