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Quantum State Reduction for Universal Measurement Based Computation

Physical Review Letters 2010年第2期105卷 020502-020502页

作者： Xie Chen Runyao Duan Zhengfeng Ji Bei Zeng Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts USA Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW Australia Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China Perimeter Institute for Theoretical Physics Waterloo Ontario Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China Institute for Quantum Computing University of Waterloo Waterloo Ontario Canada Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada

Measurement based quantum computation, which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising models for the physical realization of quantum computers. Despite considerable progress in the past decade, it remains a great challenge to search for new universal resource states with naturally occurring Hamiltonians and to better understand the entanglement structure of these kinds of states. Here we show that most of the resource states currently known can be reduced to the cluster state, the first known universal resource state, via adaptive local measurements at a constant cost. This new quantum state reduction scheme provides simpler proofs of universality of resource states and opens up plenty of space to the search of new resource states.

关键词： Quantum computers

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The Research and Design on TDD Voice WSN

The Research and Design on TDD Voice WSN

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International Conference on Multimedia technology

作者： Rong-lin Hu Jian-rong Yin Xia-jun Gu Xiang-ping Gu Li-Qing Chen Faculty of Computer Engineering Huaiyin Institute of Technology Huaian Jiangsu China Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai People's Republic of China Graduate School of Chinese Academy of Sciences Beijing People's Republic of China

A Time Division Duplex (TDD) approach is demonstrated for voice communication in the environment of wireless sensor networks. The architecture of the Voice Wireless Sensor Networks (VoWSN) is presented and the hardware designing of Voice Node and Gateway Node are described in detail. Voice quality of different scenarios such as indoor, corridor, corner and outdoor are tested. It is resulted that good voice quality can be obtained in short distance or line of sight with no obstacle. The Routing Node and Gateway Node is introduced to relay in the case of long distance or with obstacles in the channel path.

关键词： Wireless sensor networks Wireless communication Logic gates Encoding Zigbee Routing Testing

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Localized Energy Conservation Algorithm

Localized Energy Conservation Algorithm

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2010 3rd IEEE International Conference on computer Science and Information technology—ICCSIT 2010

作者： Richa Goyal Suneeta Agarwal Saurabh Jain Corresponding author and M.Tech Ⅳ Semester Student Faculty member Department of Computer Science and Engineering Motilal Nehru National Institute of Technology Allahabad-211004India Software Engineer Zensar Technologies LTDPune-411014MaharashtraIndia

＜正＞Energy is one of the most important metric when we talk about Mobile ad-hoc *** order to increase the system’s life-time,energy consumption has to be minimized. Here we will look at some energy saving *** initial analysis tells us that LECA conserves more energy than SPAN or any other *** present a Localized Energy Conservation Algorithm（LECA）[3]for routing in Mobile Adhoc Networks（MANETs）,to reduce energy consumption while being able to maintain performance *** LECA a small subset of nodes,called coordinators,is selected to participate in routing while the others are put off to conserve *** number of coordinators selected is lower than the corresponding number in the existing *** makes it possible for the network to attain high performance levels although a sparse set of coordinators are elected to reduce energy consumption to the bare minimum,we proposed a localized algorithm for conservation of energy in MANETs, without compromising the system *** algorithm presented here（LECA） selects minimum number of coordinators which constitute a connected backbone.

关键词： Mobile Ad-Hoc networks Networking Technologies SPAN（An Energy-Efficient corrdination algorithmn）.Planner and Non-Planner system

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A BnB mobile game online based on J2ME and J2EE

A BnB mobile game online based on J2ME and J2EE

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7th ACIS International Conference on software engineering Research, Management and Applications, SERA09

作者： Zhu, Quanyin Zhao, Lijuan Cao, Suqun Shen, Jianchun Zhang, Shuai Faculty of Computer Engineering Huaiyin Institute of Technology Huai'an China Faculty of Mechanical Engineering Huaiyin Institute of Technology Huai'ai China

ISBN: (纸本)9780769539034

Through the example of Bubble and Bubble (BnB) mobile game, the whole development process of mobile game based on J2ME and J2EE is showed. First, Game API in the Mobile Information Device Profile (MIDP)2.0 is used to build the game engine. Through the optimization and compatibility design of process, middleware framework is selected. Second, the game classes and components design is introduced in detail. Third, the server performance for detonation on the client, the communications time between the clients with the server and the procedure performance of the server have been tested. Various techniques, such as object pool, multi-threaded, socket connection, sprite, Maps etc., are applied in BnB's development. Experiment demonstrates its performance and proves this case is meaningful and useful for other online mobile game development. Some propositions for further research is also suggested. © 2009 IEEE.

关键词： software design

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Talent database architecture for dynamic refresh web-based application

Talent database architecture for dynamic refresh web-based a...

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7th ACIS International Conference on software engineering Research, Management and Applications, SERA09

作者： Zhao, Lijuan Zhu, Quanyin Cao, Suqun Ding, Ding Ding, Tiantian Faculty of Computer Engineering Huaiyin Institute of Technology Huai'an China Faculty of Mechanical Engineering Huaiyin Institute of Technology Huai'ai China

ISBN: (纸本)9780769539034

The Model View Controller (MVC) design model is gradually being adopted by many companies in several domains. A particular domain where the adoption of such model may bring relevant benefits is the Web applications domain. The MVC design model is composed of Data layer, Page layer and Control layer. Through the example of talent database architecture of dynamic refresh Web-based application, the whole development process of frameworks based on J2EE is shown. The MySQL database is selected;the Struts and the Hibernate frameworks are adopted to achieve the data management and control;the jQuery framework, AJAX and J2EE technology are used to realize partial page refresh. The system consists of the personal module, the department module and the administrator module, and the coupling has been reduced by the use of all the frameworks. The secondary development and expansion for further applications are also provided © 2009 IEEE.

关键词： Information management

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The influence of AJAX on Web usability

The influence of AJAX on Web usability

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International Conference on e-Business

作者： Andreas Holzinger Stefan Mayr Wolfgang Slany Matjaz Debevc Institute of Medical Informatics Statistics and Documentation (IMI) Research Unit HCI4MED MedUni Graz & Institute of Information Systems and Computer Media (IICM) Technical University of Graz Graz Austria Institute of Software Technology (IST) Technische Universität Graz Graz Austria Faculty of Electrical Engineering and Computer Science University of Maribor Maribor Slovenia

In this paper we discusses some pros and cons of using AJAX for increasing the usability of Web applications. As AJAX allows Web applications look like desktop applications, it can increase the learnability of a Web application. Nevertheless, AJAX can also be the source of end user frustration if the XMLHttpRequest is not supported by the browser, Javascript is not available, or an Internet connection is missing. We also provide some workarounds for server response time gaps, for example by providing visible user feedback messages) and enabling the back button to work properly.

关键词： Usability Browsers Servers Web pages Electronic mail Internet

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Multi-error-correcting amplitude damping codes

Multi-error-correcting amplitude damping codes

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IEEE International Symposium on Information Theory

作者： Runyao Duan Markus Grassl Zhengfeng Ji Bei Zeng State Key Laboratory of Intelligent Technology and Systems Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and Technology Tsinghua University Beijing China Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney NSW Australia Centre for Quantum Technologies National University of Singapore Singapore Perimeter Institute of Theoretical Physics Waterloo ONT Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy and Sciences Beijing China Institute for Quantum Computing and the Department of Combinatorics and Optimization University of Waterloo Waterloo ONT Canada

ISBN: (纸本)9781424478903

We construct new families of multi-error-correcting quantum codes for the amplitude damping channel. Our key observation is that, with proper encoding, two uses of the amplitude damping channel simulate a quantum erasure channel. This allows us to use concatenated codes with quantum erasure-correcting codes as outer codes for correcting multiple amplitude damping errors. Our new codes are degenerate stabilizer codes and have parameters which are better than the amplitude damping codes obtained by any previously known construction.

关键词： Damping Quantum mechanics Quantum computing Error correction codes Noise level Laboratories Phase noise Physics computing Intelligent systems computer science

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Lumiproxy:A Hybrid Representation of Image-Based Models

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Journal of computer Science & technology 2009年第3期24卷 578-587页

作者：盛斌朱鉴吴恩华张言辞 Department of Computer Science and Engineering The Chinese University of Hong Kong Faculty of Science and Technology University of Macao Institute of Software Chinese Academy of Sciences Department of Informatics University of Zurich

In this paper, we present a hybrid representation of image-based models combining the textured planes and the hierarchical points. Taking a set of depth images as input, our method starts from classifying input pixels into two categories, indicating the planar and non-planar surfaces respectively. For the planar surfaces, the geometric coefficients are reconstructed to form the uniformly sampled textures. For nearly planar surfaces, some textured planes, called lumiproxies, are constructed to represent the equivalent visual appearance. The Hough transform is used to find the positions of these textured planes, and optic flow measures are used to determine their textures. For remaining pixels corresponding to the non-planar geometries, the point primitive is applied, reorganized as the OBB-tree structure. Then, texture mapping and point splatting are employed together to render the novel views, with the hardware acceleration.

关键词： lumiproxy sampling surface fitting image-based rendering

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A Speech Recognition Based on Quantum Neural Networks Trained by IPSO

A Speech Recognition Based on Quantum Neural Networks Traine...

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International Conference on Artificial Intelligence and Computational Intelligence (AICI)

作者： Lihui Fu Junfeng Dai Faculty of electronic and electrical engineering Huaiyin Institute of technology Huaian China Faculty of computer engineering Huaiyin Institute of technology Huaian China

Aimed at PSO's defect of prematurity, an improved particle swarm optimization(IPSO) is presented. The new arithmetic has better optimization performance by adding random data to premature particles' speed and position. It was applied to the parameter learning and training of Quantum Neural Network(QNN), and a higher efficiency speech recognition system which based on IPSO-QNN was established. The experimental results of MATLAB simulation showed that the new arithmetic did a better job in speech recognition rate and speed which make the best of faster quantum neural computation and PSO's global optimization ability.

关键词： Speech recognition Neural networks Quantum computing Artificial neural networks Quantum mechanics Neurons computer networks Particle swarm optimization Character recognition Concurrent computing

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Furry stylized texel-rendering in images and videos

Furry stylized texel-rendering in images and videos

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7th International Conference on Information, Communications and Signal Processing, ICICS 2009

作者： Jiao, Shaohui Sheng, Bin Sun, Hanqiu Wu, Enhua Institute of Software Chinese Academy of Sciences Beijing China Department of Computer Science and Engineering Chinese University of Hong Kong Hong Kong Hong Kong Faculty of Science and Technology University of Macau Macau China

ISBN: (纸本)9781424446575

We present a new method for adding furry effects for cartoon characters in images and videos. We synthesize furry stylized textures based on 3D texel structure. Given an image or a video as input, realistic fur texels are generated and mapped onto the region of interest(ROI) which is obtained using the Snake method. The 3D texels are rendered using Ray Marching algorithm on GPU for fast synthesizing the furry stylized textures. Specifically, fur texels of triangular prism shape are generated in order to be possibly mapped onto the traditional triangular mesh. Gaussian function is also introduced to provide parameters for users to control the fuzz degree. For the video applications, we use SIFT(Scale Invariant Feature Transform) algorithm to extract feature points and calculate the feature matching of the ROI along with the timeline. Experimental results show that the presented method is able to synthesize the furry stylized textures in the input image and generate dynamic fur in a video for better realistic rendering. © 2009 IEEE.

关键词： Image segmentation

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