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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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Method with the Center of Graph for Point Pattern Matching

Method with the Center of Graph for Point Pattern Matching

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2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI'2009)

作者： Shanli Xuan Dong Liang Nian Wang Ming Zhu Yizheng Fan School of Computer & Information HeFei University of TechnologyHefei230009China Key Lab Intelligent Computing & Signal Ministry of Education Anhui UniversityHefei230039China Key Lab Intelligent Computing & Signal Ministry of Education Anhui UniversityHefei230039China Sch

Based on the center of graph,a point pattern feature matching method is proposed ***,a weighted complete graph is constructed with the feature points of each image,and then the center of each graph is found *** the vertex sets of the centers,the feature points are divided into several layers according to the distance from the center,and then the corresponding relation between layers is ***,the Gaussian-weighted Laplace matrices are constructed between the corresponding layers. And then the matrices are submitted to singular-value decompositionfSVD).Finally,represent the feature points with eigenvectors obtained from sVD,and then construct matching matrix to obtain the final matching *** data and real world data both indicate that our method has a higher accuracy than theirs,and it can deal with the matching problem with more feature points effectively.

关键词： feature point center of graph Laplace matriz matching.

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Automatic adaptation of annotation standards: Chinese word segmentation and POS tagging - A case study

Automatic adaptation of annotation standards: Chinese word s...

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Joint Conference of the 47th Annual Meeting of the Association for Computational Linguistics and 4th International Joint Conference on Natural Language processing of the AFNLP, ACL-IJCNLP 2009

作者： Jiang, Wenbin Huang, Liang Liu, Qun Key Lab. of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences P.O. Box 2704 Beijing 100190 China Google Research 1350 Charleston Rd. Mountain View CA 94043 United States

ISBN: (纸本)9781617382581

Manually annotated corpora are valuable but scarce resources, yet for many annotation tasks such as treebanking and sequence labeling there exist multiple corpora with different and incompatible annotation guidelines or standards. This seems to be a great waste of human efforts, and it would be nice to automatically adapt one annotation standard to another. We present a simple yet effective strategy that transfers knowledge from a differently annotated corpus to the corpus with desired annotation. We test the efficacy of this method in the context of Chinese word segmentation and part-of-speech tagging, where no segmentation and POS tagging standards are widely accepted due to the lack of morphology in Chinese. Experiments show that adaptation from the much larger People's Daily corpus to the smaller but more popular Penn Chinese Treebank results in significant improvements in both segmentation and tagging accuracies (with error reductions of 30.2% and 14%, respectively), which in turn helps improve Chinese parsing accuracy. © 2009 ACL and AFNLP.

关键词： Forestry

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Bilingually-constrained (monolingual) shift-reduce parsing

Bilingually-constrained (monolingual) shift-reduce parsing

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2009 Conference on Empirical Methods in Natural Language processing, EMNLP 2009, Held in Conjunction with ACL-IJCNLP 2009

作者： Huang, Liang Jiang, Wenbin Liu, Qun Google Research 1350 Charleston Rd. Mountain View CA 94043 United States Key Lab. of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences P.O. Box 2704 Beijing 100190 China

Jointly parsing two languages has been shown to improve accuracies on either or both sides. However, its search space is much bigger than the monolingual case, forcing existing approaches to employ complicated modeling and crude approximations. Here we propose a much simpler alternative, bilingually-constrained monolingual parsing, where a source-language parser learns to exploit reorderings as additional observation, but not bothering to build the target-side tree as well. We show specifically how to enhance a shift-reduce dependency parser with alignment features to resolve shift-reduce conflicts. Experiments on the bilingual portion of Chinese Treebank show that, with just 3 bilingual features, we can improve parsing accuracies by 0.6% (absolute) for both English and Chinese over a state-of-the-art baseline, with negligible (∼6%) efficiency overhead, thus much faster than biparsing. © 2009 ACL and AFNLP.

关键词： Forestry

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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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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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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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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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A compression algorithm for multi-streams based on GEP

A compression algorithm for multi-streams based on GEP

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3rd International Conference on Genetic and Evolutionary computing, WGEC 2009

作者： Ding, Chao Yuan, Chang-An Qin, Xiao Peng, Yu-Zhong Computer and Information Engineering College Guangxi Teachers Education University Nanning 530001 China First Middle School of Mengcheng Anhui Mengcheng233500 China Key Lab. of Scientific Computing and Intelligent Information Processing in Universities of Guangxi Guangxi Teachers Education University Nanning China

ISBN: (纸本)9780769538990

This paper applied the Methods which based on GEP in compress multi-streams. The contributions of this paper include: 1) giving an introduction to data function finding based on GEP(DFF-GEP), defining the main conception of Multi-Streams, and revealing the map relation in it;2) putting forward the Compression Algorithm for Multi-Streams according to map relation lied in data between data streams;and 3)providing an experience with the real data and find that (3.1) the compression ratio of the new methods is 120-150 times as the traditional wavelets method, and 35-70 times as the wavelets and coincidence method;(3.2) the relative error of the new method is about 3??,yet maximum relative error is 0.01 by using the traditional relative error standard, the precision is improved from 7% to 15% as compared with the traditional method. © 2009 IEEE.

关键词： Errors

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