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Predicting RNA secondary structure with Tabu Search

Predicting RNA secondary structure with Tabu Search

引用

IEEE International Conference on cognitive Informatics

作者： Liu, Yongguo Hao, Jianrui Peng, Jun School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 611731 China Key Laboratory of Intelligent Computing and Information Processing Ministry of Education Xiangtan University Xiangtan 411105 China College of Electronic Information Engineering Chongqing University of Science and Technology Chongqing 400050 China

ISBN: (纸本)9781424480401

In this paper, a novel method for predicting RNA secondary structure called RNA secondary structure prediction based on Tabu Search (RNATS) is proposed. In RNATS, two search models, intensification search and diversification search, are designed to exploit the local regions around the current solution and explore the unvisited space, respectively. Simulation experiments are conducted for six RNA sequences to show that the proposed method is feasible and effective. © 2010 IEEE.

关键词： Tabu search

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Semantic approach for service oriented requirements modeling

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作者： Zhao, Bin Cai, Guang-Jun Jin, Zhi Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing China Graduate University of the Chinese Academy of Sciences Beijing China Software Engineering Institute Peking University Beijing China

ISBN: (纸本)3642163262

Services computing is an interdisciplinary subject that devotes to bridging the gap between business services and IT services. It is recognized that Requirements Engineering is fundamental in implementing the service oriented architecture. It takes traditional RE techniques great efforts to model business requirements and search for the appropriate services. In this paper, we propose an ontological approach to facilitate the service-oriented modeling framework. The general idea is to establishing a common semantic language to describe both the business requirements and services capabilities based on their effects on the environment. After that, we used a case study to illustrate this method and showed that substantial efforts can be spared to construct a service model from business requirements. © 2010 IFIP.

关键词： Ontology

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Translating separation logic into a fragment of the first-order logic

Translating separation logic into a fragment of the first-or...

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6th International Conference on Semantics, Knowledge and Grid, SKG 2010

作者： Sui, Yuefei Shen, Yuming Cao, Cungen Wang, Ju Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China Graduate University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100039 China School of Computer Science and Information Engineering Guangxi Normal University Guilin 541004 China

ISBN: (纸本)9780769541891

Separation logic is an extension of Hoare logic for reasoning about mutable heap structure. To represent separation logic in the first-order logic, there are several choices to determine what are constants, what are predicates and quantifiers, and whether the commands are taken as atomic or composite. This paper shall give a translation of separation logic into a guarded fragment of the first-order logic, such that the translation is faithful, that is, the translation translates a consistent statement (boolean expression, assertion or specification) of separation logic into a consistent formula in the fragment of the first-order logic. By the decidability of the satisfiability problem of the guarded first-order logic, if the commands are taken as atomic in the first-order logic then the guarded first-order logic translated from separation logic is decidable, if the commands are taken as atomic/composite in the first-order logic then the first-order logic translated from separation logic is undecidable. © 2010 IEEE.

关键词： Computability and decidability

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Research on Network Chinese Pornography Characteristic and Corresponding Filtering System's Model

Research on Network Chinese Pornography Characteristic and C...

引用

International Conference on Internet Technology and Applications (iTAP)

作者： Yu-zhong Peng School of Computer & Information Engineering Key Laboratory of Scientific computing & intelligent information processing Guangxi Teachers Education University Nanning China

At present,the internet pornographic text is in varied forms and changeful, although it is prohibited ever. It severely harms people's mental and physical health development and social stability. There are IP-based,keyword-based and intelligent content analysis filtering system against it today. But they are difficult to deal with manifestations of diversity, changeful, and increasingly concealed porn. In this paper, a in-depth research has done for the appeared characteristics of such undesirable information on our statistical analysis. And based on this characteristics, a new text pre-processing algorithm PA-PTCI is proposed, and a effective model combined with content filtering technology to the current text information filtering pornography problem is designed. The experimental result shows the PA-PTCI algorithm and the model of Chinese pornography text filtering are quite effective.

关键词： Support vector machines information filtering Educational institutions Internet Computational modeling Artificial intelligence

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An epipolar resticted inter-mode selection for stereoscopic video encoding

An epipolar resticted inter-mode selection for stereoscopic ...

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Picture Coding Symposium, PCS

作者： Guolei Yang Luhong Liang Wen Gao Peking University China Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy and Sciences China

Fast stereoscopic video encoding becomes a highly desired technique because the stereoscopic video has been realizable for applications like TV broadcasting and consumer electronics. The stereoscopic video has high inter-view dependency subject to epipolar restriction, which can be used to reduce the encoding complexity. In this paper, we propose a fast inter-prediction mode selection algorithm for stereoscopic video encoding. Different from methods using disparity estimation, candidate modes are generated by sliding a window along the macro-block line restricted by the epipolar. Then the motion information is utilized to rectify the candidate modes. A selection failure handling algorithm is also proposed to preserve coding quality. The proposed algorithm is evaluated using independent H.264/AVC encoders for left and right views and can be extended to MVC. Experimental results show that encoding times of one view are reduced by 41.4% and 24.4% for HD and VGA videos respectively with little quality loss.

关键词： Encoding Prediction algorithms Algorithm design and analysis High definition video Estimation Streaming media Software algorithms

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Manifold alignment via corresponding projections

Manifold alignment via corresponding projections

引用

2010 21st British Machine Vision Conference, BMVC 2010

作者： Zhai, Deming Li, Bo Chang, Hong Shan, Shiguang Chen, Xilin Gao, Wen School of Computer Science and Technology Harbin Institute of Technology China Digital Media Research Center Institute of Computing Technology CAS China Key Laboratory of Intelligent Information Processing Chinese Academy of Sciences China Institute of Digital Media Peking University China

ISBN: (纸本)1901725405

In this paper, we propose a novel manifold alignment method by learning the underlying common manifold with supervision of corresponding data pairs from different observation sets. Different from the previous algorithms of semi-supervised manifold alignment, our method learns the explicit corresponding projections from each original observation space to the common embedding space everywhere. Benefiting from this property, our method could process new test data directly rather than re-alignment. Furthermore, our approach doesn't have any assumption on the data structures, thus it could handle more complex cases and get better results compared with previous work. In the proposed algorithm, manifold alignment is formulated as a minimization problem with proper constraints, which could be solved in an analytical manner with closed-form solution. Experimental results on pose manifold alignment of different objects and faces demonstrate the effectiveness of our proposed method. © 2010. The copyright of this document resides with its authors.

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Image denoising based on Non-Local means and multi-scale dyadic wavelet transform

Image denoising based on Non-Local means and multi-scale dya...

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International Conference on Computer Science and information Technology (CSIT)

作者： Gang Yu Yong Yin Hongjun Wang Zhi Liu Dengwang Li School of Information science and engineering Shandong University Lin'an China Key Laboratory of Intelligent Computing & Information Processing Ministry of Education Xiangtan China

A variety of wavelet transform methods have been introduced to remove noise from images. However, many of these algorithms remove the fine details and smooth the structures of the image when removing noise. The wavelet coefficient magnitude sum (WCMS) algorithm can preserve edges, but it is at the expense of removing noise. The Non-Local means algorithm can removing noise effective. But it tend to cause distortion ( eg white). Meanwhile, when the noise is large, the method is not so effective. In this paper, we propose an efficient denoising algorithm. we denoised the image with non-local means algorithm in the spatial domain and WCMS algorithm in wavelet domain, weighted, combined them and got the image that we want. The experiment shows that our algorithm can improve PSNR form 0.6 dB to 1.0 dB and the image boundary is more clearly.

关键词： Discrete wavelet transforms Image edge detection PSNR Histograms Noise reduction

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CBCT image denoising based on multi-scale wavelet transform

CBCT image denoising based on multi-scale wavelet transform

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International Conference on BioMedical Engineering and Informatics (BMEI)

作者： Yong Yin Gang Yu Hongjun Wang Zhi Liu Dengwang Li School of Information science and engineering Shandong University Jinan China Key Laboratory of Intelligent Computing Information Processing of Ministry of Education Xiangtan China

Cone-Beam Computed Tomography (CBCT) has always been in the forefront of medical image processing. The denoising as a image pre-processing, has a great affected on the image analysis and recognition. In this paper, a new algorithm for image denoising was proposed. By thresholding the interscale wavelet coefficient magnitude sum(WCMS) within a cone of influence (COI), the wavelet coefficients are classified into 2 categories: irregular coefficients, and edge-related and regular coefficients. They are processed by different ways. Meanwhile according to the projection image sequences characteristics in CBCT system, an effective noise variance estimated methods was proposed. The experiment shows that our algorithm can improve PSNR form 1.3dB to 2.6dB, and the image border is more clearly.

关键词： Noise Wavelet coefficients Image reconstruction Classification algorithms Noise reduction Image edge detection Image denoising

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Multi-agent and workflow-based web service management model

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作者： Niu, Wenjia Dou, Quansheng Han, Xu Yang, Xinghua Shi, Zhongzhi Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences 100080 Beijing China Graduate School of the Chinese Academy of Sciences 100039 Beijing China Shandong Institute of Business and Technology 264005 Yantai China

ISBN: (纸本)3642163262

The coordination between agent service and Web service is the key factor for intelligent Web service management in the multi-agent based Web service framework. In view of the drawbacks of existing coordination approaches for agent service and Web service, this paper proposed a multi-agent and workflow-based Web service management model. Through analyzing the interaction relations between agent service and Web service in the logical action-based task environment, a uniform task view for intelligent Web service is built. And based on such task view, a workflow towards special task is designed to realize intelligent Web service discovery and cooperation and composition. This model provides a more flexible Web service management. © 2010 IFIP.

关键词： Web services

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Frequent term based peer-to-peer text clustering

Frequent term based peer-to-peer text clustering

引用

International Symposium on Knowledge Acquisition and Modeling, KAM

作者： Qing He Tingting Li Fuzhen Zhuang Zhongzhi Shi Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy and Sciences China Chinese Academy of Sciences China

Text clustering is an important technology for automatically structuring large document collections. It is much more valuable in peer-to-peer networks. The high dimensionality of documents means much more communication could be saved if each node could get the approximate clustering result by distributed algorithm instead of transferring them into a center and do the clustering. Most of the existing text clustering algorithms in unstructured peer-to-peer networks are based on K-means algorithm. A problem of those algorithms is that the clustering quality may decreased with the increase of the network size. In this paper, we propose a text clustering algorithm based on frequent term sets for peer-to-peer networks. It requires relatively lower communication volume while achieving a clustering result whose quality will not be affected by the size of the network. Moreover, it gives a term set describing each cluster, which makes it possible for people to have a clear comprehension for the clustering result, and facilitates the users to find resource in the network or manage the local documents in accordance with the whole network.

关键词： Copper

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