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2009 International Conference on Theoretical and Mathematical Foundations of Computer Science, TMFCS 2009

作者： Zhao, Liquan Zhang, Ling Province Key Laboratory of Electronic Business Nanjing University of Finance and Economics Nanjing 210003 China Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education Anhui University Hefei 230039 China Artificial Intelligence Institute Anhui University Hefei 230039 China

ISBN: (纸本)9781615676583

Granular computing which imitates the manner of human thinking is the foundation of artificial intelligence. This paper discusses some operations of granules including quotient intersection, quotient union, quotient complement and quotient difference. Then defines a knowledge space and presents it by a group of basis. Besides we introduce granule spaces and their main properties.

关键词： Granular computing

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A Secret Sharing Scheme with the Changeable Threshold Value

A Secret Sharing Scheme with the Changeable Threshold Value

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International Symposium on Information Engineering and Electronic Commerce, IEEC

作者： Runhua Shi Hong Zhong Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei China Anhui University Hefei Anhui CN

In this paper, we investigate the problem of increasing the threshold value of the Shamirpsilas (t, n)-threshold scheme without the dealerpsilas helps, and present a new secret sharing scheme with the threshold value increasing. In this scheme, the dealer needs not to pre-compute or publish any information in advance, all participants cooperate to take on the dealerpsilas role and to complete the share renewing, and each participant only stores one share as the same size of the secret. The results of analysis show that the proposed scheme is secure, and it is perfect and ideal.

关键词： Cryptography Electronic commerce Laboratories signal processing Computer science Cryptographic protocols Time sharing computer systems Information security Data mining Random variables

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2009 International Conference on Machine Learning and Cybernetics(2009机器学习与控制论国际会议)

作者： CHENG ZHENG YA-PING SHEN ZHE HU Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University School of Science of Anhui Agricultural University Hefei 230036 China

Finding a good similarity algorithm for the use on ontology is important to some techniques such as semantic retrieval, data mining, ontology translations etc. Similarity computation has special characters when applied in different domains. However after we learned most of the similarity measures based on ontology, we found that most researchers did not deal with these characters. In this paper we work at the similarity computation based on ontology applied in semantic retrieval. We analyze the characters about this application and problems to be improved, and then we propose an improved semantic similarity computation model. At last, we demonstrate the improvement of this model through experiments.

关键词： Ontology Semantic Concept similarity

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Identifying protein-protein interaction sites using adapted Bayesian classifier

Identifying protein-protein interaction sites using adapted ...

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2009 Second ISECS International Colloquium on computing, Communication, Control, and Management, CCCM 2009

作者： Chishe, Wang Jie, Song Fangping, Li Junsong, Lv School of Information Technology Jinling Institute of Technology Nanjing 211169 China Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei 230039 China Center of Network University of Science and Technology of China Hefei 230029 China Anhui Statistics Bureau Hefei 230001 China

ISBN: (纸本)9781424442461

Identifying protein-protein interaction sites have important connotations ranging from rational drug design to analysis metabolic and signal transduction networks. In this paper, we presented an adapted Bayesian classifier based on tree augmented naïve Bayesian classifier to predict interface residues of protein-protein interaction sites. This classifier used fixed structure which could denote the correlation of sequence neighborhood and the character of protein's features. The conditional probability tables of the classifier were learned from the training dataset. By testing our approach on 81 hetero-complex chains, experimental results demonstrate the performance of our approach is indeed superior to current existing methods. The success of the predictions is validated by examining the predictions in the context of the three-dimensional structures of protein complexes. ©2009 IEEE.

关键词： Forecasting

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Rate-Embedded Doubly Directional Differential Space-Time-Frequency Coding Schemes

Rate-Embedded Doubly Directional Differential Space-Time-Fre...

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International Conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Hongwei Zhang Xiaohui Li Lu Lu The Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education Anhui University Hefei China Hefei Information Resource Management Center Hefei China

Due to a great many redundancy symbols, most of the existing differential space-time-frequency (DSTF) coding schemes suffer very low transmission rates. To overcome the disadvantage and obviously enhance the total transmission rate in a differential multiple-input-multiple-output (MIMO) orthogonal-frequency-division-multiplexing (OFDM) system, a rate embedded doubly directional DSTF coding scheme is proposed for doubly selective fading channels in this paper. High rate differentially coded matrices are embedded into proper time blocks and sub-carriers. In the frequency domain, both high rate non-unitary message matrices and low rate unitary message matrices are differentially transmitted alternately. In the time domain, all message matrices have full rates. Simulation results verify that, compared with those conventional DSTF coding schemes, the proposed scheme can achieve better error performances with higher transmission rates.

关键词： Receiving antennas MIMO Frequency domain analysis Transmitting antennas Fading Redundancy OFDM Slot antennas Laboratories signal processing

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A Threshold RSA Signature Scheme with Traceable Signers

A Threshold RSA Signature Scheme with Traceable Signers

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International Conference on E-Business and Information System Security, EBISS

作者： Runhua Shi Hong Zhong Key Laboratory of Intelligent Computing & Signal Processing Anhui University Ministry of Education Hefei China School of Computer Science and Technology Anhui University Hefei China

This paper proposed a threshold RSA signature with traceable signers. In such scheme, there is a trusted center (TC), which generates all system parameters, the secret keys and the corresponding public keys of the group and all members, and exists a designated clerk, which creates a warrant recording the identities of the signers and other import information. Any t members can collaboratively generate the group signature with the help of the clerk, who verifies the validity of the partial signatures and combines them to the group signature. Any one can verify the correctness of the group signature by the public information and trace out to find the identities of the signers by the warrant.

关键词： Public key Forgery Digital signatures Laboratories signal processing Collaboration Cryptography Computer science Computer security Information security

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Phase Retrieval Using the Transport-of-Intensity Equation

Phase Retrieval Using the Transport-of-Intensity Equation

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International Conference on Image and Graphics (ICIG)

作者： Hong Cheng Hong Liu Quanbing Zhang Sui Wei Education Ministry Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei China College of Electronic Science and Technology Anhui University Hefei China

ISBN: (纸本)9781424452378

The transport-of-intensity equation describes the internal relationship between the intensity and phase distribution while wave is propagating in the mobile space. So the phase distribution can be solved by the use of the equation. It is an important measurement of non-interferometry. A new phase retrieval based on transport-of-intensity equation is presented. This method has the advantage of measuring only the close-up space on the plane of the intensity of light to the reconstruction of phase space. The problem of phase retrieval is translated into minimum of energy functional with linear convolution and total variation regularization. The one and two dimension experiment results show the correctness and validity of the algorithm.

关键词： Equations Phase measurement Space technology Holography Optical interferometry Extraterrestrial measurements Holographic optical components Image reconstruction signal processing algorithms Diffraction

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The Implementation of the Web Mining Based on XML Technology

The Implementation of the Web Mining Based on XML Technology

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International Conference on Computational Intelligence and Security

作者： Cheng Zheng Yong Fang Yaping Shen Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei China School of Computer Science and Technology Anhui University Hefei China

ISBN: (纸本)9781424454112

The rapid development of the Web technology makes the Web mining become the focus of the current data mining, and the XML technology also becomes the standard of the data exchange on the Web. The paper introduces the Web mining technology, implements a frame of the Web mining based on the XML technology according to the advantage of XML in the data description, describes the implementation process of specific Web mining, and puts forward a promoting scheme on solving XML documents with VTD which solves the difficult mining problem on the Web caused by the most of the non-structure information.

关键词： Web mining XML HTML Data mining Web pages Educational technology Data acquisition Databases Computational intelligence Paper technology

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A Research on EOG Feature Parameters Extraction Based on Linear Predictive Coding Model

A Research on EOG Feature Parameters Extraction Based on Lin...

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International Conference on Bioinformatics and Biomedical Engineering (ICBBE)

作者： Zhao Lv Xiaopei Wu Mi Li The Key Laboratory of Intelligent Computing & Signal Processing Anhui University Hefei Anhui China National Mobile Communications Research Laboratory South-East University Nanjing Jiangsu China

EOG is a very effective eye movement recording method, which is not only noninvasive, but also can record any eye movements' information. In order to extract some features come form these information contained in EOG automatically, this paper presents a novel EOG feature parameters extraction algorithm. The proposed algorithm includes three main parts. The first is endpoint detection unit which detects the startpoint and endpoint of EOG signals. The second is a preprocessor which consists of band-pass filter, frame blocking procedure and windowing step. The third is feature parameters extracting part which extracts EOG feature by a linear predictive coding model and converts LPC parameters to LPC cepstral (LPCC) coefficients. Finally, the paper gives experimental results.

关键词： Electrooculography Feature extraction Parameter extraction Linear predictive coding Predictive models signal processing algorithms Laboratories signal processing Data mining Robustness

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Effective approach to improve the solving precision of electric field integral equation

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Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics 2009年第11期31卷 2553-2555页

作者： Song, Kai-Hong Zhang, Qing-Hua Wu, Xian-Liang Key Lab. of Intelligent Computing and Signal Processing Anhui Univ. Hefei 230039 China

To improve the accuracy and efficiency for solving the EFIE (electric field integral equation) by the method of moment, a novel scheme is put forward to improve the calculation precision based on the EFIE. Firstly, the inaccurate induced current is obtained by solving the EFIE under coarse mesh grids. Secondly, the scattered magnetic field at any given point on the surface of the object is calculated by the inaccurate induced current. Finally, the accurate induced current at any given point is determined through total magnetic field. The proposed approach is applied to the case of infinitely perfectly electric conducting circular cylinder and square cylinder. The numerical results are presented to demonstrate the high precision and efficiency when the size of mesh grid is large.

关键词： Method of moments

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