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arXiv 2017年

作者： Madeyski, Lech Kawalerowicz, Marcin Wroclaw University of Science and Technology Faculty of Computer Science and Management Wyb.Wyspianskiego 27 Wroclaw50-370 Poland Opole University of Technology Faculty of Electrical Engineering Automatic Control and Informatics ul. Sosnkowskiego 31 Opole45-272 Poland CODEFUSION Sp. z o.o. Armii Krajowej 16/2 Opole45-071 Poland

We would like to present the idea of our Continuous Defect Prediction (CDP) research and a related dataset that we created and share. Our dataset is currently a set of more than 11 million data rows, representing files involved in Continuous Integration (CI) builds, that synthesize the results of CI builds with data we mine from software repositories. Our dataset embraces 1265 software projects, 30,022 distinct commit authors and several software process metrics that in earlier research appeared to be useful in software defect prediction. In this particular dataset we use TravisTorrent as the source of CI data. TravisTorrent synthesizes commit level information from the Travis CI server and GitHub open-source projects repositories. We extend this data to a file change level and calculate the software process metrics that may be used, for example, as features to predict risky software changes that could break the build if committed to a repository with CI enabled. Copyright © 2017, The Authors. All rights reserved.

关键词： Forecasting

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A Critical Review of MANET Testbed Using Mobile Robot technology

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Journal of Physics: Conference Series 2018年第1期1019卷

作者： Farkhana Muchtar Abdul Hanan Abdullah Marina Md Arshad Mohd Helmy Abd Wahab Siti Nor Zawani Ahmmad Gaddafi Abdul-Salaam Faculty of Computing Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia School of Computer Sciences Universiti Sains Malaysia 11800 Gelugor Pulau Pinang Malaysia Faculty of Electronic and Electrical Engineering Universiti Tun Hussein Onn 86400 Batu Pahat Johor Malaysia Instrumental and Control Engineering University Kuala Lumpur MITEC Persiaran Sinaran Ilmu Bandar Seri Alam 81750 Johor Malaysia Department of Computer Science Kwame Nkrumah University of Science and Technology Ghana

This paper is a continuation of our previous paper under the same topic, MANET testbed using mobile robot technology. In our previous paper, we studied the topic by scrutinizing all the technical aspects and presented it as a technical review. However in this paper, we study the topic and presents it as a critical review that dwells into four aspect, namely (i) purpose, accessibility and scope of testbed facilities, (ii) usability and controllability of robot mobility in t estbed facilities, (iii) repeatability and reproducibility of real mobility in t estbeds, and (iv) tools for MANET implementation, deployment and debugging for experiments. With the wealth of information on the topic provided in this paper, the content of this paper is expected to be a source of reference for MANET researchers who are at a crossroad when selecting the preferred mobile robot technology and approach to suit their own specific needs.

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Picture array generation using flat splicing operation

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Journal of Computational and Theoretical Nanoscience 2016年第6期13卷 3568-3577页

作者： Pan, Linqiang Nagar, Atulya K. Subramanian, K.G. Song, Bosheng School of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou Henan450002 China Department of Mathematics and Computer Science Faculty of Science Liverpool Hope University LiverpoolL16 9JD United Kingdom Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan Hubei430074 China

The operation of splicing on words was introduced by Tom Head while proposing a theoretical model of DNA recombination. Subsequent investigations on splicing on linear and circular strings of symbols have resulted in a number of theoretical properties. A different kind of splicing on two words, referred to as flat splicing, has been considered recently. This operation is extended to flat splicing on picture arrays, thus defining a new model of generation of digitized pictures, which is called as array flat splicing system (AFS). Results on the generative power of AFS in comparison with certain well-known picture array defining models and certain non-closure results are obtained. Copyright © 2016 American Scientific Publishers. All rights reserved.

关键词： Nanoscience

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The status of KAGRA underground cryogenic gravitational wave telescope

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Journal of Physics: Conference Series 2019年第1期1342卷

作者： T. Akutsu M. Ando A. Araya N. Aritomi H. Asada Y. Aso S. Atsuta K. Awai M. A. Barton K. Cannon K. Craig W. Creus K. Doi K. Eda Y. Enomoto R. Flaminio Y. Fujii M.-K. Fujimoto T. Furuhata S. Haino K. Hasegawa K. Hashino K. Hayama S. Hirobayashi E. Hirose A. H. Hsieh Y. Inoue K. Ioka Y. Itoh T. Kaji T. Kajita M. Kakizaki M. Kamiizumi S. Kambara N. Kanda S. Kanemura M. Kaneyama G. Kang J. Kasuya Y. Kataoka N. Kawai S. Kawamura C. Kim H. Kim J. Kim Y. Kim N. Kimura T. Kinugawa S. Kirii Y. Kitaoka Y. Kojima K. Kokeyama K. Komori K. Kotake R. Kumar H. Lee Y. Liu N. Luca E. Majorana S. Mano M. Marchio T. Matsui F. Matsushima Y. Michimura O. Miyakawa T. Miyamoto A. Miyamoto K. Miyo S. Miyoki W. Morii S. Morisaki Y. Moriwaki T. Morozumi M. Musha S. Nagano K. Nagano K. Nakamura T. Nakamura H. Nakano M. Nakano K. Nakao T. Narikawa L.Nguyen Quynh W.-T. Ni T. Ochi J. Oh S. Oh M. Ohashi N. Ohishi M. Ohkawa K. Okutomi K. Oohara F. E.Peña Alleano I. Pinto N. Sago M. Saijo Y. Saito K. Sakai Y. Sakai Y. Sasaki M. Sasaki S. Sato T. Sato Y. Sekiguchi N. Seto M. Shibata T. Shimoda H. Shinkai A. Shoda K. Somiya E. Son A. Suemasa T. Suzuki H. Tagoshi H. Takahashi R. Takahashi A. Takamori H. Takeda H. Tanaka K. Tanaka T. Tanaka D. Tatsumi T. Tomaru T. Tomura F. Travasso K. Tsubono S. Tsuchida N. Uchikata T. Uchiyama T. Uehara S. Ueki K. Ueno T. Ushiba M. H. P. M. van Putten H. Vocca S. Wada T. Wakamatsu T. Yamada S. Yamamoto T. Yamamoto K. Yamamoto A. Yamamoto J. Yokoyama T. Yokozawa T. H. Yoon H. Yuzurihara S. Zeidler Z.-H. Zhu KAGRA Collaboration National Astronomical Observatory of Japan Mitaka Tokyo 181-8588 Japan Department of Physics University of Tokyo Bunkyo Tokyo 113-0033 Japan Earthquake Research Institute University of Tokyo Bunkyo Tokyo 113-0032 Japan Department of Advanced Physics Hirosaki University Hirosaki Aomori 036-8561 Japan National Astronomical Observatory of Japan Hida Gifu 506-1205 Japan Department of Physics Tokyo Institute of Technology Meguro Tokyo 152-8551 Japan Institute for Cosmic Ray Research University of Tokyo Hida Gifu 506-1205 Japan Research Center for the Early Universe University of Tokyo Bunkyo Tokyo 113-0033 Japan Institute for Cosmic Ray Research University of Tokyo Kashiwa Chiba 277-8582 Japan Institute of Physics Academia Sinica Nankang Taipei 11529 Taiwan Department of Physics University of Toyama Toyama Toyama 930-8555 Japan Faculty of Engineering University of Toyama Toyama Toyama 930-8555 Japan Yukawa Institute for Theoretical Physics Kyoto University Sakyo Kyoto 606-8502 Japan Department of Physics Osaka City University Sumiyosi Osaka 558-8585 Japan Department of Physics Osaka University Toyonaka Osaka 560-0043 Japan Korea Institute of Science and Technology Information Yuseong Daejeon 34141 Korea Korea Astronomy and Space Science Institute (KASI) Yuseong Daejeon 34055 Korea National Institute for Mathematical Sciences Daejeon 34047 Korea Department of Computer Simulation Inje University Gimhae Gyeongsangnam 50834 Korea Department of Physics and Astronomy Seoul National University Seoul 151-742 Korea High Energy Accelerator Research Organization Tsukuba Ibaraki 305-0801 Japan Department of Physical Science Hiroshima University Higashihiroshima Hiroshima 903-0213 Japan Department of Applied Physics Fukuoka University Jonan Fukuoka 814-0180 Japan Department of Advanced Materials Science University of Tokyo Kashiwa Chiba 277-8582 Japan Istituto Nazionale di Fisica Nucleare Sapienza University Roma 00185 Italy Department of Ma

KAGRA is a 3-km interferometric gravitational wave telescope located in the Kamioka mine in Japan. It is the first km-class gravitational wave telescope constructed underground to reduce seismic noise, and the first km-class telescope to use cryogenic cooling of test masses to reduce thermal noise. The construction of the infrastructure to house the interferometer in the tunnel, and the initial phase operation of the interferometer with a simple 3-km Michelson configuration have been completed. The first cryogenic operation is expected in 2018, and the observing runs with a full interferometer are expected in 2020s. The basic interferometer configuration and the current status of KAGRA are described.

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GPI-based secrecy rate maximization beamforming scheme for wireless transmission with an-aided directional modulation

arXiv

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arXiv 2017年

作者： Yu, Hai Wan, Simin Cai, Wenlong Xu, Ling Zhou, Xiaobo Wang, Jin Wu, Yongpeng Shu, Feng Wang, Jiangzhou Wang, Jianxin School of Electronic and Optical Engineering Nanjing University of Science and Technology Nanjing210094 China faculty of National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing China Shanghai Key Laboratory of Navigation and Location-Based Services Shanghai Jiao Tong University Minhang200240 China College of Computer and Information Sciences Fujian Agriculture and Forestry University Fuzhou350002 China School of Engineering and Digital Arts University of Kent CanterburyCT2 7NT United Kingdom

In a directional modulation network, a general power iterative (GPI) based beamforming scheme is proposed to maximize the secrecy rate (SR), where there are two optimization variables required to be optimized. The first one is the useful precoding vector of transmitting confidential messages to the desired user while the second one is the artificial noise (AN) projection matrix of forcing more AN to eavesdroppers. In such a secure network, the paramount problem is how to design or optimize the two optimization variables by different criteria. To maximize the SR (Max-SR), an alternatively iterative structure (AIS) is established between the AN projection matrix and the precoding vector for confidential messages. To choose a good initial value of iteration process of GPI, the proposed Max-SR method can readily double its convergence speed compared to the random choice of initial value. With only four iterations, it may rapidly converge to its rate ceil. From simulation results, it follows that the SR performance of the proposed AIS of GPI-based Max-SR is much better than those of conventional leakage-based and null-space projection methods in the medium and large signal-to-noise ratio (SNR) regions, and its achievable SR performance gain gradually increases as SNR increases. Copyright © 2017, The Authors. All rights reserved.

关键词： Modulation

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Preliminary analysis of the effectiveness of the use of artificial neural networks for modeling time-voltage signal of the combination wave generator 18

Preliminary analysis of the effectiveness of the use of arti...

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18th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic engineering, ISEF 2017

作者： Dudzik, Marek Mielnik, Ryszard Wrobel, Zofia Institute of Electrical Engineering and Computer Science Department of Traction and Traffic Control Faculty of Electrical and Computer Engineering Cracow University of Technology ul. Warszawska 24 Kraków31-155 Poland PKP Polish Railway Lines JSC Railway Lines Establishment in Rzeszów ul. St. Batorego 26 Rzeszów35-005 Poland

ISBN: (纸本)9781538616611

This paper presents the construction the time-voltage signal output model of the combination wave generator using neural networks. The discussed model of surge was developed using feedforward neural networks with one hidden layer with four neurons. The results of the comparative tests show the high efficiency of Leveneberg-Marquardt algorithm using in the developed model, despite the lack of optimization of the structure. Presented at work model of the combination wave generator described in neural network, you can replace the traditional mathematical model of such a generator. Discussed above model can be used, inter alia, in the analysis of the operating of components and systems for surge protection of electrical equipment. This approach allows a particularly efficient execution of simulation calculations of the effects of atmospheric origin overvoltage protection systems operating on the surge electrical equipment. © 2017 IEEE.

关键词： Surge protection

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A unified leader-follower scheme for mobile robots with uncalibrated on-board camera

A unified leader-follower scheme for mobile robots with unca...

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IEEE International Conference on Robotics and Automation (ICRA)

作者： Dejun Guo Hesheng Wang Weidong Chen Ming Liu Zeyang Xia Kam K. Leang DARC (Design Automation Robotics & Control) Lab University of Utah Robotics Center Salt Lake City Utah USA State Key Laboratory of Robotics and System (HIT) Key Laboratory of System Control and Information Processing Ministry of Education of China Department of Automation Shanghai Jiao Tong University Shanghai China Department of Electronics and Computer Engineering Hong Kong University of Science and Technology Hong Kong China Institute of Biomedical and Health Engineering Chinese Academy of Sciences Shenzhen China

This paper studies the problem of image-based leader-follower formation control for mobile robots, where the controller is designed independently of the leader's motion. An adaptive control scheme, which is suitable for both omnidirectional and perspective cameras, is proposed. The proposed approach avoids the need for accurate calibration of the extrinsic parameters of the omnidirectional camera as well as the intrinsic and extrinsic parameters of perspective camera. Additionally, the coefficients of the plane where the feature point moves relative to the camera frame can be uncertain. These uncertain constant parameters are estimated using an adaptive estimator. Uniform Semi-global Practical Asymptotic Stability (USPAS) of the system is shown using the Lyapunov approach. Experimental results are presented to demonstrate the effectiveness of the proposed control scheme.

关键词： Cameras Robot vision systems Kinematics Mobile robots Calibration Automation

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CASCIRE surveillance network and work on avian influenza viruses

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science China(Life sciences) 2017年第12期60卷 1386-1391页

作者： Yuhai Bi Weifeng Shi Jianjun Chen Quanjiao Chen Zhenghai Ma Gary Wong Wenxia Tian Renfu Yin Guanghua Fu Yongchun Yang William J.Liu Chuansong Quan Qianli Wang Shenghu He Xiangdong Li Qianfeng Xia Lixin Wang Zhaohui Pan Laixing Li Hong Li Wen Xu Ying Luo Hui Zeng Lianpan Dai Haixia Xiao Kirill Sharshov Alexander Shestopalov Yi Shi Jinghua Yan Xuebing Li Yingxia Liu Fumin Lei Wenjun Liu George F.Gao CAS Key Laboratory of Pathogenic Microbiology and Immunology Collaborative Innovation Center for Diagnosis and Treatment ofInfectious DiseaseInstitute of MicrobiologyCenter for Influenza Research and Early-warning(CASCIRE)Chinese Academy of SciencesBeijing 100101China Shenzhen Key Laboratory of Pathogen and Immunity State Key Discipline of Infectious DiseaseShenzhen Third People's HospitalShenzhen 518112China Shandong Universities Key Laboratory of Etiology and Epidemiology of Emerging Infectious Diseases Taishan Medical CollegeTai'an 271016China CAS Key Laboratory of Special Pathogens and Biosafety Wuhan Institute of VirologyChinese Academy of SciencesWuhan 430071China College of Life Science and Technology Xinjiang UniversityUrumchi 830046China College of Animal Science and Veterinary Medicine Shanxi Agricultural UniversityTaigu 030801China Department of Veterinary Preventive Medicine College of Veterinary MedicineJilin UniversityJilin 130062China Institute of Animal Husbandry and Veterinary Medicine Fujian Academy of Agricultural SciencesFuzhou 350013China Center of Excellence for Animal Health Inspection College of Animal Science and TechnologyZhejiang Agriculture and Forestry UniversityZhejiang 311300China National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention(China CDC)Beijing 102206China Key Laboratory of Public Health Safety Ministry of EducationSchool of Public HealthFudan UniversityShanghai 200032China Laboratory of Clinical Veterinary Medicine College of AgricultureNingxia UniversityYinchuan 750021China National Research Center for Veterinary Medicine Luoyang 471003China Laboratory of Tropical Biomedicine and Biotechnology and Faculty of Tropical Medicine and Laboratory MedicineImmunology DepartmentSchool of Basic Medicine and Life ScienceHainan Medical UniversityHaikou 571101China Xizang Agriculture and Animal Husbandry College Linzhi 860000China Key Laboratory of Adaptation and Evolution of Plateau Biota N

Studies on influenza virus by Chinese Academy of sciences(CAS)could be traced back as early as 2005 by the CAS Key Laboratory of Pathogenic Microbiology and Immunology(CASPMI),who discovered that Qinghai-like Clade 2.2H5N1 subtype highly pathogenic avian influenza virus(HPAIV)first caused severe outbreak in wild birds in Qinghai Lake(Liu et al.,2005).

关键词： CASCIRE surveillance network work on avian influenza viruses

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A Low Disk-Bound Transaction Logging System for In-memory Distributed Data Stores

A Low Disk-Bound Transaction Logging System for In-memory Di...

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IEEE International Conference on Cluster Computing

作者： Dayal Dilli Kenneth B. Kent Yang Wang Chengzhong Xu Faculty of Computer Science University of New Brunswick Canada Shenzhen Institute of Advanced Technology Chinese Academy of Science China Department of Electrical and Computer Engineering Wayne State University Detroit MI

ISBN: (纸本)9781509036547

Transaction logging and snapshotting are techniques used to deliver durability to the data in in-memory data stores. Absolute durability guarantees are delivered to a system by sequentially recording the transaction logs and snapshots to a non-volatile disk. Recent advancements in database restoration techniques have given rise to lock-free fuzzy snapshots. Still the transaction log that completes the fuzzy snapshots is not lock-free. In addition to locking, the major overhead behind the transaction logging technique is the bottleneck involved in storing the logs to a persistent but slower disk. This paper concentrates on implementing an in-memory transaction logging system with a lesser disk dependency. This logging system mainly targets the distributed in-memory data stores that are transaction replicated, eventually consistent and fault tolerant to crash failures. By making logging in-memory, the performance will be improved, but during the crash fails, the state may be lost. On recovery, we restore the current state partially from the locally available fuzzy snapshot and the remaining from the non-failed nodes in the distributed replica. ZooKeeper, a distributed data store that offers distributed coordination as its major service is used to implement and test our research. On average, a 30 times write performance improvement has been achieved with this approach guaranteeing sufficient durability in replicated mode.

关键词： Distributed databases Fault tolerance Fault tolerant systems computer crashes Servers Protocols

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Array P systems with parallel rewriting and tables of context-free rules

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Journal of Computational and Theoretical Nanoscience 2016年第6期13卷 3636-3642页

作者： Pan, Linqiang Song, Bosheng Isawasan, Pradeep Subramanian, K.G. School of Electric and Information Engineering Zhengzhou University of Light Industry Zhengzhou Henan450002 China Key Laboratory of Image Information Processing and Intelligent Control School of Automation Huazhong University of Science and Technology Wuhan Hubei430074 China 32 Jalan Anson Penang10400 Malaysia Department of Mathematics and Computer Science Faculty of Science Liverpool Hope University LiverpoolL16 9JD United Kingdom

The two areas of picture languages and membrane computing were linked by array-rewriting P system in which array objects and context-free array-rewriting rules are used in order to generate picture languages. While rewriting arrays in the array-rewriting P system is in a sequential manner, parallel array P system (PAP) involves rewriting of arrays in the regions in parallel in order to generate picture languages. A variant of PAP, known as tabled array P system (TPAP), uses sets of context-free array-rewriting rules, called tables of rules. Generative power of TPAP in comparison with PAP and certain other kinds of picture array generating mechanisms are investigated. Copyright © 2016 American Scientific Publishers. All rights reserved.

关键词： Context free languages

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