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Modeling impact of attacks, recovery, and attackability conditions for situational awareness

Modeling impact of attacks, recovery, and attackability cond...

IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support (CogSIMA)

作者： Hasan Cam Pierre Mouallem Yilin Mo Bruno Sinopoli Benjamin Nkrumah Network Science Division Army Research Laboratory Adelphi MD USA Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA USA

A distributed cyber control system comprises various types of assets, including sensors, intrusion detection systems, scanners, controllers, and actuators. The modeling and analysis of these components usually require multi-disciplinary approaches. This paper presents a modeling and dynamic analysis of a distributed cyber control system for situational awareness by taking advantage of control theory and time Petri net. Linear time-invariant systems are used to model the target system, attacks, assets influences, and an anomaly-based intrusion detection system. Time Petri nets are used to model the impact and timing relationships of attacks, vulnerability, and recovery at every node. To characterize those distributed control systems that are perfectly attackable, algebraic and topological attackability conditions are derived. Numerical evaluation is performed to determine the impact of attacks on distributed control system.

关键词： Decentralized control Fires Analytical models Sensors Linear systems Intrusion detection

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A Virtual MIMO Relay system with Unmanned Aircraft and Multiple Ground Stations

A Virtual MIMO Relay System with Unmanned Aircraft and Multi...

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IEEE Vehicular Technology Conference

作者： Kensuke Ikeda Fumie Ono Hideki Ochiai Ryu Miura Department of Electrical and Computer Engineering Yokohama National University Dependable Wireless Laboratory Wireless Network Research Institute National Institute of Information and Communications Technology (NICT)

ISBN: (纸本)9781479944484

This paper proposes a virtual MIMO system model for the unmanned aircraft system (UAS) that consists of a small unmanned aircraft (UA) and multiple ground stations (GSs). Since it is difficult to equip a small UA with multiple antennas due to the limitation of its payload, the proposed system exploits a mobility of the single-antenna UA to realize virtual MIMO channels. The channel is assumed to be either Rayleigh or Rician fading, and in the case of Rician, we also investigate the case where the UA fails to receive the line-of-sight (LOS) path due to some turbulence as a probabilistic event. The comparison of the bit error rate (BER) performance through computer simulations shows that when the channel fading is severe or the LOS path is lost with non-negligible probability, a significant improvement of BER performance can be achieved by the diversity gain through the proposed virtual MIMO approach.

关键词： Bit error rate OFDM Wireless communication Fading Rician channels Unmanned aerial vehicles

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Sequence data and association statistics from 12,940 type 2 diabetes cases and controls

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Scientific data 2017年第1期4卷 170179页

作者： Jason Flannick Christian Fuchsberger Anubha Mahajan Tanya M Teslovich Vineeta Agarwala Kyle J Gaulton Lizz Caulkins Ryan Koesterer Clement Ma Loukas Moutsianas Davis J McCarthy Manuel A Rivas John R B Perry Xueling Sim Thomas W Blackwell Neil R Robertson N William Rayner Pablo Cingolani Adam E Locke Juan Fernandez Tajes Heather M Highland Josee Dupuis Peter S Chines Cecilia M Lindgren Christopher Hartl Anne U Jackson Han Chen Jeroen R Huyghe Martijn van de Bunt Richard D Pearson Ashish Kumar Martina Müller-Nurasyid Niels Grarup Heather M Stringham Eric R Gamazon Jaehoon Lee Yuhui Chen Robert A Scott Jennifer E Below Peng Chen Jinyan Huang Min Jin Go Michael L Stitzel Dorota Pasko Stephen C J Parker Tibor V Varga Todd Green Nicola L Beer Aaron G Day-Williams Teresa Ferreira Tasha Fingerlin Momoko Horikoshi Cheng Hu Iksoo Huh Mohammad Kamran Ikram Bong-Jo Kim Yongkang Kim Young Jin Kim Min-Seok Kwon Juyoung Lee Selyeong Lee Keng-Han Lin Taylor J Maxwell Yoshihiko Nagai Xu Wang Ryan P Welch Joon Yoon Weihua Zhang Nir Barzilai Benjamin F Voight Bok-Ghee Han Christopher P Jenkinson Teemu Kuulasmaa Johanna Kuusisto Alisa Manning Maggie C Y Ng Nicholette D Palmer Beverley Balkau Alena Stančáková Hanna E Abboud Heiner Boeing Vilmantas Giedraitis Dorairaj Prabhakaran Omri Gottesman James Scott Jason Carey Phoenix Kwan George Grant Joshua D Smith Benjamin M Neale Shaun Purcell Adam S Butterworth Joanna M M Howson Heung Man Lee Yingchang Lu Soo-Heon Kwak Wei Zhao John Danesh Vincent K L Lam Kyong Soo Park Danish Saleheen Wing Yee So Claudia H T Tam Uzma Afzal David Aguilar Rector Arya Tin Aung Edmund Chan Carmen Navarro Ching-Yu Cheng Domenico Palli Adolfo Correa Joanne E Curran Dennis Rybin Vidya S Farook Sharon P Fowler Barry I Freedman Michael Griswold Daniel Esten Hale Pamela J Hicks Chiea-Chuen Khor Satish Kumar Benjamin Lehne Dorothée Thuillier Wei Yen Lim Jianjun Liu Marie Loh Solomon K Musani Sobha Puppala William R Scott Loïc Yengo Sian-Tsung Tan Herman A Taylor Farook Thameem Gregory Wilson Tien Yin Wong Pål Rasmu Department of Molecular Biology Massachusetts General Hospital Boston Massachusetts USA. Program in Medical and Population Genetics Broad Institute Cambridge Massachusetts USA. Department of Biostatistics and Center for Statistical Genetics University of Michigan Ann Arbor Michigan USA. Wellcome Trust Centre for Human Genetics Nuffield Department of Medicine University of Oxford Oxford UK. Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of Technology Cambridge Massachusetts USA. Department of Statistics University of Oxford Oxford UK. Genetics of Complex Traits University of Exeter Medical School University of Exeter Exeter UK. MRC Epidemiology Unit Institute of Metabolic Science University of Cambridge Cambridge UK. Department of Twin Research and Genetic Epidemiology King's College London London UK. Oxford Centre for Diabetes Endocrinology and Metabolism Radcliffe Department of Medicine University of Oxford Oxford UK. Department of Human Genetics Wellcome Trust Sanger Institute Hinxton Cambridgeshire UK. School of Computer Science McGill University Montreal Quebec Canada. McGill University and Génome Québec Innovation Centre Montreal Quebec Canada. Human Genetics Center The University of Texas Graduate School of Biomedical Sciences at Houston The University of Texas Health Science Center at Houston Houston Texas USA. Department of Biostatistics Boston University School of Public Health Boston Massachusetts USA. National Heart Lung and Blood Institute's Framingham Heart Study Framingham Massachusetts USA. Medical Genomics and Metabolic Genetics Branch National Human Genome Research Institute National Institutes of Health Bethesda Maryland USA. Department of Biostatistics Harvard School of Public Health Boston Massachusetts USA. Chronic Disease Epidemiology Swiss Tropical and Public Health Institute University of Basel Basel Switzerland. Institute of Genetic Epidemiology Helmholtz Zentrum München German R

To investigate the genetic basis of type 2 diabetes (T2D) to high resolution, the GoT2D and T2D-GENES consortia catalogued variation from whole-genome sequencing of 2,657 European individuals and exome sequencing of 12,940 individuals of multiple ancestries. Over 27M SNPs, indels, and structural variants were identified, including 99% of low-frequency (minor allele frequency [MAF] 0.1-5%) non-coding variants in the whole-genome sequenced individuals and 99.7% of low-frequency coding variants in the whole-exome sequenced individuals. Each variant was tested for association with T2D in the sequenced individuals, and, to increase power, most were tested in larger numbers of individuals (>80% of low-frequency coding variants in ~82 K Europeans via the exome chip, and ~90% of low-frequency non-coding variants in ~44 K Europeans via genotype imputation). The variants, genotypes, and association statistics from these analyses provide the largest reference to date of human genetic information relevant to T2D, for use in activities such as T2D-focused genotype imputation, functional characterization of variants or genes, and other novel analyses to detect associations between sequence variation and T2D.

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Topological constraints of gate-level circuits obtained through standard cell recognition (SCR)

Topological constraints of gate-level circuits obtained thro...

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IEEE National Conference on Aerospace and Electronics (NAECON)

作者： L. A. Hsia G. Vernizzi M. Y. Lanzerotti D. Langley M. K. Seery L. Orlando Assistant Professor of Physics at Augsburg College Air Force Research Laboratory (AFRL) Sensors Directorate Minneapolis MN USA Adjunct Associate Professor of Computer Engineering at Air Force Institute of Technology (AFIT) OH USA 513th Electronic Warfare Squadron Air Force Institute of Technology Florida OH USA Associate Professor of Physics at Siena College Loudonville NY USA 315th Network Warfare Squadron Hickam AFB HI Department of Defense or the U.S. Government United States Air Force OH

This paper presents topological constraints of gate-level circuits obtained through standard cell recognition applied to gate-level commercial microelectronics verification. A suite of topological constraints, including the gate vertex count, net vertex count, terminal count, blocks, circuit genus, Euler characteristic, and number of faces are extracted from gate-level circuits obtained through standard cell recognition. Topological constraints are computed for two full adder cells at fourth level of abstraction and for two full adder cells at the third level of abstraction. Two mathematical frameworks are also introduced to describe physically distinct situations in hardware that are represented in a schematic as functionally equivalent. The first method uses the concept of a braid word, and the second method uses the concept of a crossing vertex. Schematic braid words corresponding to each of two full adder cell schematics at fourth level of abstraction and for two full adder cell schematics at the third level of abstraction are derived. Chip braid words corresponding to the set of unique physical designs that could potentially be realized in chip hardware from a schematic are obtained and discussed. Potential capabilities of these approaches for gate-level circuits are discussed.

关键词： Logic gates Standards Adders Integrated circuits Thyristors Testing Microelectronics

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3-SPS+RRS+PS mechanism analysis and hessian matrix solution

3-SPS+RRS+PS mechanism analysis and hessian matrix solution

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2014 International Conference on Logistics engineering, Management and computer Science, LEMCS 2014

作者： Zhang-Yuan Wangzhen Guoansong Guoi-Juan Xi, Feng-Feng Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Yanshan University Qinhuangdao066004 China Hebei Normal University of Science and Technology Qinhuangdao Hebei066004 China Force Equipment Research Institute Airlines Beijing100076 China China National Heavy Machinery Research Institute Xian710032 China Department of Aerospace Engineering Ryerson University Toronto Canada

ISBN: (纸本)9789462520103

3-SPS+RRS+PS is a new type of mechanism. There is good application prospect in the field of aerospace. Especially some key kinetic characteristic calculation algorithms are implemented, which makes its calculation mechanized, thus it will contribute to make the dynamics performance of this mechanism optimized and ascended. In the paper, firstly, the degree of freedom is calculated and freedom nature is analyzed. Then the reverse solution is calculated, started with the nature of degree of freedom. And the mechanism velocity and acceleration inverse solutions are calculated in the direct derivation method. Although there are shortcomings that calculation process is complicated in direct derivation method, its calculation process is easy to realize mechanization. Then a kind of fast numerical calculation algorithm is given and MATLAB program is implemented. The algorithm has universal applicability to the mechanism of continuous differentiable inverse equation, and can be applied to general parallel mechanism. © 2014. The authors - Published by Atlantis Press.

关键词： Mechanisms

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Global evolution of an analyzer angle on the Faraday anomalous dispersion optical filter at 1529 nm

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Chinese Science Bulletin 2013年第36期58卷 4582-4587页

作者： TAO ZhiMing WANG YanFei HONG YeLong WANG DongYing ZHUANG Wei CHEN JingBiao State Key Laboratory of Advanced Optical Communication System and Network Institute of Quantum Electronics School of ElectronicsEngineering and Computer Science Peking University Department of Physics Bijie University

In order to realize laser frequency stabilization,the global evolution of an analyzer angle on the electrodeless-discharge-vaporlamp-based excited-state Faraday anomalous dispersion optical filter(LESFADOF)with a single transmission peak operating on the Rb1529 nm(5P3/2-4D5/2)is *** find that the transmission of the line center peak at 80°arrives at 14%in a 3 cm length lamp contained natural Rb mixed with 2 torr Xe buffer gas operating at 250°C with 176 MHz radio *** it is used to realize laser frequency stabilization,the LESFADOF at near 80°is *** a single transmission peak or double transmission peaks depend on the rf voltage when two polarizers are crossed.

关键词：法拉第反常色散光学滤波器演进激光稳频无电极放电无线电频率频率稳定激发态

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Distribution of populations in excited states of electrodeless discharge lamp of Rb atoms

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Chinese Science Bulletin 2013年第16期58卷 1876-1881页

作者： TAO ZhiMing WANG YanFei HONG YeLong WANG DongYing ZHANG ShengNan ZHUANG Wei CHEN JingBiao State Key Laboratory of Advanced Optical Communication System and Network Institute of Quantum Electronics School of Electronics Engineering & Computer Science Peking University Department of Physics Bijie University

The intensity of fluorescence spectral lines of Rb atoms in the region of 350-1110nm is measured in eletrodeless discharge lamp. The population ratio between the excited states is calculated according to the spontaneous transition probabilities with rate equations. At the same time, the population density of energy level is also obtained. The results provide the potential applications of electrodeless discharge lamp in atomic filter and optical frequency reference at higher excited states without a pumping laser.

关键词：原子激发态无极灯铷原子种群分布人口密度无极放电灯原子滤光器概率计算

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Photonic network vision 2020 - Toward smart photonic cloud

Photonic network vision 2020 - Toward smart photonic cloud

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作者： Kitayama, Ken-Ichi Hiramatsu, Atsushi Fukui, Masaki Tsuritani, Takehiro Yamanaka, Naoaki Okamoto, Satoru Jinno, Masahiko Koga, Masafumi Department of Electrical Electronic and Information Engineering Osaka University Suita 565-0871 Japan NTT Photonics Laboratories Yokosuka Japan NTT Advanced Technology Corporation United States Department of Optical Transport Network Laboratory KDDI Research and Development Laboratories Inc. Saitama 356-8502 Japan Department of Computer Science Keio University Yokohama 223-8522 Japan Department of Electrical Engineering Kagawa University Takamatsu 239-0847 Japan Department of Electrical and Electronic Engineering Oita University Oita 870-1124 Japan

A vision of the photonic network in 2020 is presented, which envisages a 'smart photonic cloud.' A smart photonic cloud is defined as a universal network platform without any physical or logical constraint that provides flexible connectivity for machine-to-machine communication such as networked high-performance computing or intra- and inter-data center networks. The key requirements for the network in the Big Data era include an ultralarge capacity with low power consumption, low latency, as well as flexibility on demand to the changes in the configuration and bandwidth of the optical path. To cope with the growing demand for network virtualization, novel photonic layer virtualization will be proposed, which differs from the conventional approach in terms of the number of slices and the dynamic range of the bandwidth of each slice. First, the objectives and the guiding principle of the vision will be addressed. Next, three 'Ss' will be presented that represent the key enabling technologies, namely scale-free photonics, smart photonic networking, and a synthetic transport platform. A key engine with which to realize the above three enabling technologies is the photonic network processor (P-NP), which can define versatile functionality of switches and transmission systems by software. The P-NP takes advantage of the rapid progress made on digital signal processing for coherent optical transmission systems, and it consists of pools of optical frontends, digital signal processors, L1/L2 switches, which are either electrically or optically interconnected based on silicon photonic technology. Finally, a multifunctional optical cross-connect and a bit-rate-flexible optical transponder are presented as examples of P-NP applications. © 1983-2012 IEEE.

关键词： Optical fiber communication

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A framework for sentiment analysis on schema-based research content via lexica analysis

A framework for sentiment analysis on schema-based research ...

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International Symposium on Telecommunications, IST

作者： Marjan Goodarzi Maryam Tayefeh Mahmoudi Ramin Zamani System and Network Security Assessment Group ICT Research Institute Tehran Iran Multi Media Group Alzahra University Tehran Iran Department of Computer Engineering & Information Technology Islamic Azad University Tehran Iran

Sentiment Analysis is one of the significant issues in the area of natural language processing, computational linguistics and text mining. It has also become a potential research area in bibliographic search and opinion mining, which is our main focus in this paper. Sentiment analysis of citations on schema-based research contents, such as scientific articles and reports, may not only makes an appropriate understanding of the issue, but also enhances the level of reliability of citations in those contents. Taking the above points into account, in this paper, a framework for sentiment analysis based on lexica analysis is proposed to determine the polarity of author's opinion about citations in content. This framework consists of three major steps: subjectivity detection, polarity classification and strength determination of opinion. In each step, some considerations are considered to improve the capability of proposed framework. We have applied SentiWordNet, AFINN and Bingliu lexica sets for this purpose. The schema-based research contents that have been considered for this experiment is PubMed, which consists of open source medical articles of US digital library of medicine. Experimental results reveal the superiority of SentiWordNet lexica set compared to the other existing sets in sentiment analysis of PubMed articles.

关键词： Context Sentiment analysis Dictionaries Abstracts Libraries Syntactics Pragmatics

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An energy-efficient geographic routing based on cooperative transmission in wireless sensor networks

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Science China(Information Sciences) 2013年第7期56卷 42-51页

作者： LI Bin WANG WenJie YIN QinYe LI HongXiang YANG Rong Ministry of Education Key Laboratory for Intelligent Networks and Network Security Xi'an Jiaotong University Department of Electrical and Computer Engineering University of Louisville National Research Institute of Radio Spectrum Management

In this paper, we propose an energy-efficient cooperative geographic routing (ECGR) to reach energy-efficient routing in wireless sensor networks (WSN). ECGR takes full advantage of cooperative diversity and geographic routing. At physical layer, cooperative nodes transmit the same packet in a cooperative way to achieve farther transmission distance of each hop without more energy consumption. While at the network layer, ECGR adaptively selects the appropriate cooperative nodes to form forwarding clusters to forward the packet to the destination when we consider energy consumption and geographic information of the sensor nodes. Meanwhile, in order to fully assess the energy consumption, we take circuit energy consumption of the sensor nodes into consideration. According to the description above, we increase the transmit distance of each hop; and thereby reducing and balancing the overall network energy consumption among nodes to extend the lifetime of the network.

关键词： wireless sensor networks geographic routing transmit diversity multi-sensor diversity circuit energy consumption

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