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International Conference on Pattern Recognition

作者： Xiaorui Jiang Dongyu Zhang Kuanquan Wang Wangmeng Zuo Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy and Sciences China Department of Computer Science and Technology Harbin Institute of Technology China

ISBN: (纸本)9781424475421

This paper tries to fill the gap between Traditional Chinese Pulse Diagnosis (TCPD) and Doppler diagnosis by applying digital signal analysis and pattern classification techniques to wrist radial arterial Doppler blood flow signals. Doppler blood flows signals (DBFS) of patients with cholecystitis, gastritis and healthy people are classified by L2-soft margin SVM and 5 linear classifiers using the proposed feature - piecewise axially integrated bispectra (PAIB). A 5-fold cross validation is used for performance evaluation. The classification accuracies between either two groups of subjects are greater than 93%. Gastritis can be recognized with higher accuracy than cholecystitis. Cholecystitis can be recognized with higher accuracy on left hand data than right. The findings in this paper partly conform to the theory of TCPD. Though the sample size is relatively small, we could still argue that the methods proposed here are effective and could serve as an assistive tool for TCPD.

关键词： Support vector machines Doppler effect Feature extraction Diseases Wrist Pathology Accuracy

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An automatic image annotation method based on the mutual K-nearest neighbor graph

An automatic image annotation method based on the mutual K-n...

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International Conference on Natural Computation (ICNC)

作者： Yu Tang Guo Bin Luo Department of Computer Science and Technology Hefei University of Technology Hefei China Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei China

In order to improve the accuracy of the image annotation, an automatic image annotation method based on mutual K-nearest neighbor graph (MKNN) is proposed. The proposed algorithm describes the relationship between low-level features, annotation words and image by a mutual K-nearest neighbor graph. Semantic information is extracted by exploiting the mutual relationship of two nodes in the mutual K-nearest neighbor graph. Inverse document frequency (IDF) is introduced to adjust the weights of edges between the image node and its annotation word's node, which overcomes the deviation caused by high-frequency words. Experimental results in Corel image dataset show that the proposed algorithm improves effectively the image annotation performance..

关键词： Image edge detection Semantics Training Nearest neighbor searches Computational modeling Vocabulary Visualization

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Robust speech recognition using compression of Mel sub-band energies and temporal filtering

2010 5th International Symposium on Telecommunications, IST ...

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2010 5th International Symposium on Telecommunications, IST 2010 2010年 760-763页

作者： Moradi, Naghmeh Nasersharif, Babak Akbari, Ahmad Faculty of Engineering University of Guilan Rasht Iran Audio and Speech Processing Lab. Computer Engineering Department Iran University of Science and Technology Tehran Iran

ISBN: (纸本)9781424481835

The Mel-frequency cepstral coefficients (MFCC) are commonly used in speech recognition systems. But, they are highly sensitive to presence of external noise. In this paper, we propose a two-step method to compensate noise effects on MFCC. In the first step, we propose a sub-band SNR-dependent compression function for Mel sub-band energies to give higher weights to sub-bands less contaminated with noise and give lower weights to sub-bands more contaminated with noise. In the second step, we apply temporal filters to the weighted MFCCs in order to improve their temporal characteristics. Our results on Aurora2 databases show that the proposed method has higher performance than both of conventional temporal filtering methods and weighted MFCC. © 2010 IEEE.

关键词： Signal to noise ratio

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The application of flash into M-learning in 3G initial stage

The application of flash into M-learning in 3G initial stage

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International Symposium on Knowledge Acquisition and Modeling, KAM

作者： Yue-ming Tang Quan Liu Ling-ling Wang Department of Educational Technology Henan Normal University Xinxiang Henan China Institute of Computer Science and Technology Provincial Key Laboratory of Computer Information Processing Technology Soochow University Suzhou Jiangsu China

With the development of the 3G technology, M-learning enters a period of rapid development. But meanwhile 3G also restrains the development of M-learning due to several drawbacks in its early days. According to the application analysis, it comes out Flash has its unique features: small capacity, easy to develop high-quality and etc, which can make up for 3G initial stage's disadvantages. Through case design, this paper proves that Flash can be a new effective approach and way for M-learning in the 3G network. In the end, from the aspects of technical and artistic, this paper makes a further research on how to improve the flash animation to serve the M-learning better.

关键词： Multimedia communication Education Animation

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Routing with uncertainty in wireless mesh networks

Routing with uncertainty in wireless mesh networks

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International Workshop on Quality of Service

作者： Fajun Chen Jiangchuan Liu Zongpeng Li Yijie Wang Key Laboratory of Science and Technology for National Defence of Parallel and Distributed Processing National University of Defense Technology China School of Computing Science Simon Fraser University Department of Computer Science University of Caglary

Existing routing protocols for Wireless Mesh Networks (WMNs) are generally optimized with statistical link measures, while not addressing on the intrinsic uncertainty of wireless links. We show evidence that, with the transient link uncertainties at PHY and MAC layers, a pseudo-deterministic routing protocol that relies on average or historic statistics can hardly explore the full potentials of a multi-hop wireless mesh. We study optimal WMN routing using probing-based online anypath forwarding, with explicit consideration of transient link uncertainties. We show the underlying connection between WMN routing and the classic Canadian Traveller Problem (CTP). Inspired by a stochastic recoverable version of CTP (SRCTP), we develop a practical SRCTP-based online routing algorithm under link uncertainties. We study how dynamic next hop selection can be done with low cost, and derive a systematic selection order for minimizing transmission delay. We conduct simulation studies to verify the effectiveness of the SRCTP algorithms under diverse network configurations. In particular, compared to deterministic routing, reduction of end-to-end delay (51.15~73.02%) and improvement on packet delivery ratio (99.76%) are observed.

关键词： Uncertainty Wireless mesh networks Delay Routing protocols Physical layer Statistics Stochastic processes Relays computer networks Concurrent computing

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An Approach to Secure Mobile Agents in Automatic Meter Reading

An Approach to Secure Mobile Agents in Automatic Meter Readi...

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International Conference on Cyberworlds

作者： Najmus Saqib Malik Friedrich Kupzog Michael Sonntag Department of Computer Science Comsats Institute of Information Technology Islamabad Pakistan Institute of Computer Technology University of Technology Vienna Vienna Austria Institute of Information Processing and Microprocessor Technology Johannes Kepler University Linz Linz Austria

Mobile agent is a suitable paradigm to collect information from multiple sites in a distributed environment. As compare to other technologies, mobile agents can be used beneficially for Automatic Meter Reading (AMR) and to measure power quality information at each energy meter. Since meter contains embedded system, so the choice of agent platform for such an application is very important. This article investigates different methods from literature that use mobile agent paradigm for AMR process. It proposes a method that reduces the total security computation cost which is incurred in AMR process. In this method, energy meters are organized in the form of a group based upon the geographical location. In such one location energy meters perform their jobs under a security manager. In this method, the concept of local mobile agent is proposed to avoid the visit of external mobile agent to energy meters directly. Local mobile agent carries the acceptable queries from security manager and visits energy meters. This article uses mathematical modeling to represent the security computation cost incurred by each method from literature and compare it with the propose method. It is concluded that the proposed mechanism reduces the security computation cost considerably, compared to other methods.

关键词： Mobile agents Servers Meter reading Cryptography Internet Local area networks

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International Conference on Bio-Inspired Computing: Theories and Applications, BICTA

作者： Zhujin Zhang Shuo Wang Xingyi Zhang Zheng Zhang School of Computer and Information Science University of South Australia Adelaide SA Australia Key Laboratory of Image Processing and Intelligent Control Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan China Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education School of Computer Science and Technology Anhui University Hefei China

Randić et al. proposed a significant graphical representation for DNA sequences, which is very compact and avoids loss of information. In this paper, we build a fast algorithm for this graphical representation with time complexity O(n 2 ), and find another important advantage in the representation: no degeneracy. Moreover, we propose a new method to do similarity analysis of DNA sequences based on the representation. The approach adopts four elements of covariance matrix as a descriptor, and is illustrated on the first exon of beta-globin genes from 11 different species.

关键词： Rabbits Educational institutions Bovine Humans Sun DNA Mice

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A novel line based connected component labeling algorithm

A novel line based connected component labeling algorithm

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International Conference on computer science and Information technology (CSIT)

作者： Yebin Fan Shengsheng Yu Hualong Zhao Department of Computer Science Huazhong University of Science and Technology Wuhan China National Key Laboratory of Science and Technology on Multi-spectral Information Processing Technologies Institute for Pattern Recognition and Artificial Intelligence Huazhong University of Science and Technology Wuhan China

This paper presents a fast connected component labeling algorithm based on line description method and optimized tree Union-Find strategy. The algorithm transforms the pixel-connected issue, which most of proposed algorithms focus on, into line-connected issue. This algorithm is comprised of three phrases, line extraction, connected component identification and label assignment. The line description method transforms the connected pixels into line form for reducing the scan time. While the new tree Union-Find strategy diminishes the redundant root compare operations. A comparison analysis is performed with other optimized famous component labeling algorithms. Our algorithm has shown an outstanding performance with respect to the processing time, which achieves 1.1~8 times as fast as the other algorithms in various test cases.

关键词： Noise

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Constructing Green System of Engineering Experimental Teaching Based on Virtual Instrument technology

Constructing Green System of Engineering Experimental Teachi...

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The 5th International Conference on computer science & Education(第五届国际计算机新技术与教育学术研讨会 ICCSE'10)

作者： Baosheng Yang Hong Li Laboratory of Intelligent Information Processing Suzhou University Suzhou 234000 China Department of computer science and technology Suzhou University Suzhou 234000 China

Constructing green innovation system is the science and technology development strategy which the nation is trying to advocate. Scientific research, teaching research and industrial development must impose green-oriented in university, to meet the national green technology development strategy. To form green teaching atmosphere, constructing the green campus culture and infiltrating it into the teaching activities are the main ways, it is necessary to explore new ideas for the construction of green laboratories. According to the requirements of green engineering experiment, we proposed to create a green laboratory used virtual instrument (VI) technology, and optimized the experimental teaching. VI with high technical content, ease of configuration and maintenance easy to save, effective experimental, can provide a comfortable experiment environment, better for the research and teaching.

关键词： laboratory construction:green experiment virtual instrument:filter

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A Hybrid Approach for Solving Nonlinear Bilevel Programming Problems Using Genetic Algorithms

A Hybrid Approach for Solving Nonlinear Bilevel Programming ...

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International Conference on Computational Intelligence and Security

作者： Hecheng Li Yuping Wang Department of Mathematics and Information Science Key Laboratory of Tibetan Information Processing of Ministry of Education Key Laboratory of Tibetan Information Processing of Ministry of Education Xining China School of Computer Science and Technology Xidian University Xi'an China

The paper focuses on a special nonlinear bilevel programming problem (BLPP), and its characteristic is that the follower's programming is convex and quadratic, whereas there are no any additional requirements for the leader's functions. In order to solve the complex problem efficiently, it is first converted into an equivalent single-level programming by using Karush-Kuhn-Tucher (K-K-T) conditions, and then a hybrid genetic algorithm(HGA), combined with an enumeration technique of the bases, is proposed to solve the equivalent problem. At first, a mixed encoding scheme is given, involving the leader's variables and the bases of the follower's linear complementarity system, In addition, we present a fitness function which consists of the leader's objective and a penalty term, and by which the feasible and infeasible individuals can be identified. In order to illustrate the efficiency of HGA, 10 test problems selected from literature are solved, and the computational results show that the proposed algorithm is efficient and robust.

关键词： Lead Biological cells Programming profession Encoding Optimization Gallium

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