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Discovering users' potential demands for literature recommendation

9th FTRA InternationalConference on Future Information Technology, FutureTech 2014

作者： Gao, Yinghu Chen, Xue Xu, Zheng School of Computer Engineering and Science Shanghai University Shanghai China State Key Laboratory of Mathematical Engineering and Advanced Computing Wuxi China

ISBN: (纸本)9783642550379

Inspired by the process of human memory and interaction, this paper provides a discovery model of user demands. We can get the keywords network and episodic network by capture and analysis the user's behavior in the process of interaction, which can help the searching results to meet the user's actual demands better. © 2014 Springer-Verlag Berlin Heidelberg.

关键词： Behavioral research

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A semantic representation of micro-blog short text based on topic model

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9th FTRA InternationalConference on Future Information Technology, FutureTech 2014

作者： Tang, Wenqing Chen, Xue Xu, Zheng State Key Laboratory of Mathematical Engineering and Advanced Computing Wuxi China School of Computer Engineering and Science Shanghai University Shanghai China

ISBN: (纸本)9783642550379

The fundamental challenge confronting micro-blog short texts is to represent, compute and mine their semantics since they are colloquial language and restricted within 140 words. This paper presents an approach to represent micro-blogs semantically based on topic model. First, we get the topic vector of micro-blog through word-themes Mutual Reinforcement of micro-blog texts. Second, we take advantages of improved K-means to cluster micro-blog topic vectors and gain a category set of micro-blogs. Third, we make experiments to prove the above-mentioned methods. Finally, we find these methods can calculate semantics of micro-blogs text accurately and effectively. © 2014 Springer-Verlag Berlin Heidelberg.

关键词： Semantics

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The process analysis of encryption and decryption based on process dependency graphs

The process analysis of encryption and decryption based on p...

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2013 International Conference on Sport Science and Computer Science, CCCS 2013

作者： Chang, Rui Jiang, Liehui He, Hongqi Zeng, Yun State Key Laboratory of Mathematic Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9781845649166

At present, the research on reverse analysis of encrypting and decrypting process pays more attention to cryptographic algorithms recognition. There is no mature theory or tools for the entire process analysis of encryption and decryption. In order to solve the problem efficiently, this paper discusses encryption and decryption process dependency graphs, summarizes the existing research results about the cryptographic algorithms recognition technology, and explores a way to research the process analysis of encryption and decryption based on process dependency graphs. Finally, the result on an example reveals the entire process analysis of encryption and decryption. © 2014 WIT Press.

关键词： Graphic methods

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Tomography is Necessary for Universal Entanglement Detection with Single-Copy Observables

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Physical Review Letters 2016年第23期116卷 230501-230501页

作者： Dawei Lu Tao Xin Nengkun Yu Zhengfeng Ji Jianxin Chen Guilu Long Jonathan Baugh Xinhua Peng Bei Zeng Raymond Laflamme Institute for Quantum Computing University of Waterloo Waterloo N2L 3G1 Ontario Canada State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua University Beijing 100084 China Centre for Quantum Computation and Intelligent Systems Faculty of Engineering and Information Technology University of Technology Sydney NSW 2007 Australia Department of Mathematics and Statistics University of Guelph Guelph Ontario N1G 2W1 Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing 100190 China Joint Center for Quantum Information and Computer Science University of Maryland College Park Maryland 20742 USA Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of China Hefei Anhui 230036 China Canadian Institute for Advanced Research Toronto Ontario M5G 1Z8 Canada Perimeter Institute for Theoretical Physics Waterloo Ontario N2L 2Y5 Canada

Entanglement, one of the central mysteries of quantum mechanics, plays an essential role in numerous tasks of quantum information science. A natural question of both theoretical and experimental importance is whether universal entanglement detection can be accomplished without full state tomography. In this Letter, we prove a no-go theorem that rules out this possibility for nonadaptive schemes that employ single-copy measurements only. We also examine a previously implemented experiment [H. Park et al., Phys. Rev. Lett. 105, 230404 (2010)], which claimed to detect entanglement of two-qubit states via adaptive single-copy measurements without full state tomography. In contrast, our simulation and experiment both support the opposite conclusion that the protocol, indeed, leads to full state tomography, which supplements our no-go theorem. These results reveal a fundamental limit of single-copy measurements in entanglement detection and provide a general framework of the detection of other interesting properties of quantum states, such as the positivity of partial transpose and the k-symmetric extendibility.

关键词： Entanglement detection Entanglement measures Quantum tomography Nuclear magnetic resonance

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Corrections to “Cross-Modal Correlation Learning by Adaptive Hierarchical Semantic Aggregation” [Jun 16 1201-1216]

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IEEE Transactions on Multimedia 2016年第10期18卷 2127-2127页

作者： Yan Hua Shuhui Wang Siyuan Liu Anni Cai Qingming Huang School of Information Engineering Communication University of China Beijing China Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing China Smeal College of Business Pennsylvania State University University Park PA USA Center of Cloud Computing Institute of Advanced Computing and Digital Engineering Shenzhen Institutes of Advanced Technology Shenzhen China Department of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing China University of Chinese Academy of Sciences Beijing China Key Laboratory of Intellectual Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing China

Presents corrections to the paper, "Cross-modal correlation learning by adaptive hierarchical semantic aggregation," (Hua, Y., et al) IEEE Trans. Multimedia, vol. 18, no. 6, pp. 1201-1216, Jun. 2016.

关键词： Semantics Learning (artificial intelligence) Ontologies Query processing

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IG-C4.5: An improved feature selection method based on information gain

IG-C4.5: An improved feature selection method based on infor...

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2014 International Conference on Mechatronics, Electronic, Industrial and Control engineering, MEIC 2014

作者： Luo, Kai Yin, MeiJuan Luo, JunYong Li, JianLin State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou Henan China Jiuquan Satellite Launch Center of China Jiuquan Gansu China

ISBN: (纸本)9789462520424

Feature selection is an important means to solve the problem of dimension reduction in anomaly network traffic detection. Focusing on the problem of traditional feature selection algorithm based on information gain neglect the redundancy between features, this paper proposes an improved feature selection method combining CFS and C4.5 algorithms-IG-C4.5. In the improved algorithm, the irrelevant features and the redundant features were removed by adding the judgments of redundancy between features, which effectively simplified the feature subset. The experimental results show that the proposed algorithm can effectively find the feature subsets with good separability, which results in the low-dimensional data and the good classification accuracy. © 2014. The authors - Published by Atlantis Press.

关键词： Feature Selection

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A Data Assured Deletion Scheme in Cloud Storage

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China Communications 2014年第4期11卷 98-110页

作者： LI Chaoling CHEN Yue ZHOU Yanzhou PLA Information Engineering University Zhengzhou 450001 China State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450001 China

In order to provide a practicable solution to data confidentiality in cloud storage service,a data assured deletion scheme,which achieves the fine grained access control,hopping and sniffing attacks resistance,data dynamics and deduplication,is *** our scheme,data blocks are encrypted by a two-level encryption approach,in which the control keys are generated from a key derivation tree,encrypted by an All-OrNothing algorithm and then distributed into DHT network after being partitioned by secret *** guarantees that only authorized users can recover the control keys and then decrypt the outsourced data in an ownerspecified data *** confidentiality,data dynamics and deduplication are also achieved separately by adjustment of key derivation tree and convergent *** analysis and experimental results show that our scheme can satisfy its security goal and perform the assured deletion with low cost.

关键词： cloud storage data confidentiality secure data assured deletion data dynamics

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Randomness expansion with a one-sided trusted device

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Physical Review A 2015年第5期91卷 052308-052308页

作者： Hong Wang Kai Chen Ming Gao Zhi Ma Weilong Wang Chaobo Li Chuangui Ma State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450002 China Zhengzhou Information Science and Technology Institute Zhengzhou 450002 China National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 P.R. China CAS Excellence Innovation Center Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Hefei Anhui 230026 China

We study a semi-device-independent (SDI) randomness expansion protocol with a trusted source or detector. It is not difficult to characterize the source or the detector when their dimensions are limited in the SDI scenario. By adding the reasonable assumption, our protocol offers higher min-entropy and, thus, can be used to certify more randomness than the standard SDI protocol of H.-W. Li et al. [Phys. Rev. A 84, 034301 (2011)]. Moreover, randomness expansion can be realized with a lower detection efficiency (about 85.4%) in the trusted source case than the standard one (about 93.4%). Meanwhile, this advantage is robust against parameter deviations of the source. But on the other hand, the sharp measurement cannot improve the performance much in this case. So, there is no need to characterize the measurement accurately. Furthermore, an analytical formula describing the relationship between the dimension witness value and the min-entropy of the output string is derived directly.

关键词： QUANTUM measurement DETECTORS ENTROPY (Information theory) PERFORMANCE evaluation QUANTUM information theory

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Research on General Permutation Encryption Module based on Chaos Theory

Research on General Permutation Encryption Module based on C...

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2014 5th International Conference on Information Technology for Manufacturing Systems(ITMS 2014)

作者： Wenjie Sun State Key Laboratory of Mathematical Engineering and Advanced Computing

Replacement and substitution encryption are two basic types of encryption historically. The classical encryption algorithm has been compromised now, but they still can play special role for modern cryptology. For example, in digital image encryption system, substitution can disrupt the original order of the images and eliminate the correlation of image information which not only can realize security of images, but also can resist intentional attack and destruction of clipping and noise. And transposition transformation is introduced into the design of block ciphers. The substitution has the feature of high efficiency and resistance, which makes it meet the specific requirements of encryption. So substitution cypher can be applied to modern encryption system.

关键词： Chaos theory General substitution Encryption

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Register one-to-one mapping strategy in Dynamic Binary Translation

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2014 International Conference on Network Security and Communication engineering(NSCE 2014)

作者： Y.N.Cui J.M.Pang Z.Shan F.Yue State Key Laboratory of Mathematical Engineering and Advanced Computing

Dynamic Binary Translation（DBT） is an important technology to cross-platform software transplantation such as enhancing the compatibility of ***,there exist some factors that impede its performance:high translation overhead and translated code of low *** this work,we take advantage of host registers,using register mapping strategy to promote the performance of *** mapping registers from guest Instruction-Set Architectures（ISA） to host machines,it could off-load the overhead caused by load and store operations of *** simplifying the rules of the intermediate code generated,it could lower the number of intermediate code and improve the quality of translated *** X86 to ALPHA on SPEC 2006,the code expansion reduces 32.86%and the performance of the optimized translator is improved by 7.55%.

关键词： Dynamic binary translation Overhead Registers mapping Performance optimization

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