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IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)

作者： Jiawen Zhang Junwei Qi Yingsong Li College of Information and Communication Engineering Harbin Engineering University Harbin China Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University China

Recently, symmetric linear nonuniform arrays (SLNAs) have been promoted for hybrid near-field (NF) and far-field (FF) source localization. A new SLNA based on symmetric nested array (SNA) is presented in the paper. The proposed array and its difference coarray (DCA) configuration can be expressed in closed-form. Comparing to the existing SLNAs with same sensors number, the proposed array can locate more sources and provide longer consecutive lags, which optimizes the detection results. Simulation results prove that the designed array outperforms traditional compressed symmetric nested array (CSNA).

关键词： Location awareness Simulation Sensors Noise measurement Sensor arrays Antenna arrays

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A Dual-band Low-profile Quadrifilar-Helix Antenna for Satellite Navigation System

A Dual-band Low-profile Quadrifilar-Helix Antenna for Satell...

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IEEE International Workshop on Electromagnetics, Applications and Student Innovation (iWEM)

作者： Jiahong Wang Junwei Qi Yingsong Li College of Information and Communication Engineering Harbin Engineering University Harbin China Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University China

A new dual-band low-profile quadrifilar-helical antenna (QHA) was presented. The spiral radiation arm of QHA is printed to three circular dielectric plates to reduce the antenna height. In this case, the radiation arm of the lower layer is connected to the feed, and the L-shaped branch is connected to the ground through a 50 ohm resistance. The radiation arm in the middle layer adds branches to realize dual frequency. The upper radiation arm rotates inward and folds, further realizing miniaturization. As a result, the height of QHA is only 20mm. Through CST simulation and optimization, The operating frequency bands of QHA are 1GHz - 1.45GHz and 1.54GHz - 1.74GHz. The beam width of QHA is more than 120°, which is to provide service for satellite navigating systems. The AR for the operation bands are less than 3dB.

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Study on The Property of Training Samples and Learning Space with Genetic Algorithms

Study on The Property of Training Samples and Learning Space...

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ACIS International Conference on software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed computing (SNPD)

作者： Jingsong He Jian Tang QianSheng Fang MOE-Microsoft Key Laboratory of Multimedia Computing and Communication Department of Electronic Science and Technology University of Science and Technology China Anhui Institute of Architecture and Industry China

Historically, the empirical risk of a pattern classifier was asked to be made zero, therefor the default property of training samples were limited to a separable ones. Nowadays on the contrary, the major idea of learning classification no longer ask the empirical risk of classifier must be made zero. In this situation, inseparable feature sets may not be detrimental to the performance of classifier. However, so far no experimental studies and analytical results show whether an inseparable feature set is available or not. This paper firstly analyzes the interaction between learning algorithms and feature selection, and gives a proof by both the analytical analysis and experimental studies.

关键词： Genetic algorithms Industrial training Space technology Risk analysis Algorithm design and analysis Law Legal factors Classification tree analysis software engineering Artificial intelligence

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Capture expression-dependent AU relations for expression recognition

Capture expression-dependent AU relations for expression rec...

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IEEE International Conference on Multimedia and Expo Workshops (ICMEW)

作者： Jun Wang Shangfei Wang Mengdi Huai Chongliang Wu Zhen Gao Yue Liu Qiang Ji Key Lab of Computing and Communication Software of Anhui Province University of Science and Technology of China Hefei Anhui P.R.China University of Science and Technology of China Hefei Anhui CN Department of Electrical Rensselaer Polytechnic Institute Troy NY USA

ISBN: (纸本)9781479947164

To date, there is only limited research that explicitly exploits the relationships among Action Units and expressions for facial expression recognition. In this paper, we propose an facial expression recognition method through modeling the expression-dependent AU relations. First, the incremental association Markov blanket algorithm is adopted to select crucial action units for a certain expression. Second, a Bayesian Network (BN) is constructed to capture the relationships between a certain expression and its crucial action units. Given the learned BNs and measurements of AUs and expression, we can then perform expression recognition within the BN through a probabilistic inference. Experimental results on the CK+ and MMI databases demonstrate the effectiveness and generalization ability of our method.

关键词： Gold Markov processes Databases Training Accuracy Face recognition Bayes methods

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Improved point clouds data simplification algorithm in 3D data processing

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2012年第20期6卷 679-685页

作者： Haiyan, Wang Hong, Wan School of Computer and Communication Engineering Tianjin University of Technology Tianjin 300384 China Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology Tianjin 300384 China

With the development of computer technology, Reverse Engineering (RE) based on 3D data processing has developed greatly. The whole procedure of laser scanning color 3D data from the aspect of 3D data processing includes the pre-processing of point clouds and the surface reconstruction. This paper proposes improved point clouds data simplification algorithm in 3D data processing, it is the adjustment of simplification algorithm under the restriction of color boundary compared to the key simplification algorithms of the pre-processing for color 3D point clouds. The experiment result shows that the proposed algorithm is effective.

关键词： Surface reconstruction

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Multi-view Metric Learning for Multi-view Video Summarization

Multi-view Metric Learning for Multi-view Video Summarizatio...

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International Conference on Cyberworlds

作者： Linbo Wang Xianyong Fang Yanwen Guo Yanwei Fu MOE Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei China National Key Laboratory for Novel Software Technology Nanjing University Nanjing China School of Data Science Fudan University China

Traditional methods on video summarization are designed to generate summaries for single-view video records, and thus they cannot fully exploit the mutual information in multi-view video records. In this paper, we present a multiview metric learning framework for multi-view video summarization. It combines the advantages of maximum margin clustering with the disagreement minimization criterion. The learning framework thus has the ability to find a metric that best separates the input data, and meanwhile to force the learned metric to maintain underlying intrinsic structure of data points, for example geometric information. Facilitated by such a framework, a systematic solution to the multi-view video summarization problem is developed from the viewpoint of metric learning. The effectiveness of the proposed method is demonstrated by experiments.

关键词： Extraterrestrial measurements Optimization Manifolds Visualization Minimization Eigenvalues and eigenfunctions

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Fault diagnosis design based on qualitative simulation

Fault diagnosis design based on qualitative simulation

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International Conference on Intelligent Control and Information Processing (ICICIP)

作者： Chenxi Shao Zhenzhong Shao Juntao Zhang Fanzhou Bai College of Computer Science & Technology University of Science and Technology of China Anhui Province Key Laboratory of Software in Computing and Communication Hefei Anhui China Jianghuai Automobile Co. Ltd. Hefei China College of Computer Science & Technology University of Science and Technology of China Hefei

Based on the QSIM reasoning of Kuipers, comparative constraint is presented to reduce the diagnosis space. The transfer regulation of qualitative constrain is used in the simulation and reasoning of system diagnosis. This arithmetic takes observed faulty state as the beginning, to diagnosis the discrepancy of variable and location of the causation according to the transfer regulation of qualitative constraint, reasons from faulty diagnosed to examine the result and delete the redundancy of diagnosis result. In the example of Condensation refrigeration system, the constraint relation is built according to qualitative difference equation. Aim at the bad efficiency of refrigeration, the mixture of air or Freon superfluously is diagnosed as the result faulty source, is consistent with the factual system.

关键词： Circuit faults Mathematical model Differential equations Algebra Valves Cognition Educational institutions

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Energy-Efficient In-Memory Paging for Smartphones

Energy-Efficient In-Memory Paging for Smartphones

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作者： Zhong, Kan Liu, Duo Liang, Liang Zhu, Xiao Long, Linbo Wang, Yi Sha, Edwin Hsing-Mean College of Computer Science Chongqing University Chongqing400044 China Key Laboratory of Dependable Service Computing in Cyber Physical Society Chongqing University Ministry of Education Chongqing400044 China College of Communication Engineering Chongqing University Chongqing400044 China College of Computer Science and Software Engineering Shenzhen University Shenzhen518060 China

Smartphones are becoming increasingly energy-hungry to support feature-rich applications, posing a lot of pressure on battery lifetime and making energy consumption a non-negligible issue. In particular, dynamic random access memory (DRAM)-based main memory subsystem is a major contributor to the energy consumption of mobile devices. In this paper, we propose direct read (DR). Swap, an energy-efficient in-memory paging design to reduce energy consumption in smartphones. In DR. Swap, we adopt emerging energy-efficient nonvolatile memory (NVM) and use it as the swap area. Utilizing NVMs byte-addressability, we propose DR which guarantees zero memory copy for read-only requests when accessing a page in swap area. To better understand the energy consumption of swapping, we build an energy model to analyze the energy consumption of different paging architectures. We evaluate DR. Swap based on the Google Nexus 5 smartphone, experimental results show that our technique can reduce more than 50% energy consumption compared to DRAM backed swapping. © 2015 IEEE.

关键词： Smartphones

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ParzenWindows Estimation Using Laplace Kernel: A Novel Parametric Analysis with Information Content

ParzenWindows Estimation Using Laplace Kernel: A Novel Param...

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ACIS International Conference on software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed computing (SNPD)

作者： Jingsong He Jian Tang QianSheng Fang MOE-Microsoft Key Laboratory of Multimedia Computing and Communication China Department of Electronic Science and Technology University of Science and Technology China Anhui Institute of Architecture and Industry China

Parzen windows estimation is one of the classical non- parametric methods in the field of machine learning and pattern classification, and usually uses Gaussian density function as the kernel. Although the relation between the kernel density estimation (KDE) and low-pass filtering is well known, it is vary difficult to setting the parameters of the other kinds of density functions. This paper proposes a novel method to deal with the parameters of Laplace kernel through measuring the degree of exchanged information among interpolating points. Experimental results showed that the proposed method can improve the performance of Parzen windows significantly.

关键词： Kernel Information analysis Density functional theory Low pass filters Machine learning Frequency estimation Cutoff frequency Bandwidth Artificial intelligence Pattern classification

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A Parallel NURBS-based Isogeometric Analysis Framework on Multi-core CPUs

A Parallel NURBS-based Isogeometric Analysis Framework on Mu...

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2012年全国理论计算机科学学术年会(NCTCS2012)

作者： Licai Guo Zhangjin Huang School of Computer Science and Technology University of Science and Technology of China PR China USTC-SICT Joint Laboratory on Network and Key Laboratory of Software in Computing and Communication Anhui Province PR China USTC-SICT Joint Laboratory on Network and Communication PR China School of Computer Science and Technology University of Science and Technology of China PR China

parallel framework for NURBS-based isogeometric analysis on multi-core cpus is presented in this *** framework is composed of two parts:(1) construction of the stiffness matrix and right hand side vector; (2) a parall...

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