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state estimation for discrete-time memristive recurrent neural networks with stochastic time-delays

International Journal of General Systems 2016年第5期45卷 633页

作者： Liu, Hongjian Wang, Zidong Shen, Bo Alsaadi, Fuad E. [a] School of Information Science and Technology Donghua University Shanghai China.[b] Department of Computer Science Brunel University London Uxbridge United Kingdom.[c] Communication Systems and Networks (CSN) Research Group Faculty of Engineering King Abdulaziz University Jeddah Saudi Arabia.[d] School of Mathematics Anhui Polytechnic University Wuhu China.

This paper deals with the robust [Formula omitted.] state estimation problem for a class of memristive recurrent neural networks with stochastic time-delays. The stochastic time-delays under consideration are governed by a Bernoulli-distributed stochastic sequence. The purpose of the addressed problem is to design the robust state estimator such that the dynamics of the estimation error is exponentially stable in the mean square, and the prescribed [Formula omitted.] performance constraint is met. By utilizing the difference inclusion theory and choosing a proper Lyapunov-Krasovskii functional, the existence condition of the desired estimator is derived. Based on it, the explicit expression of the estimator gain is given in terms of the solution to a linear matrix inequality. Finally, a numerical example is employed to demonstrate the effectiveness and applicability of the proposed estimation approach.

关键词： Discrete time H∞ state estimation memristive neural networks stochastic time-delays

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research on highly consumable platform for business analytics

Research on highly consumable platform for business analytic...

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IEEE International Conference on Progress in Informatics and Computing (PIC)

作者： Qingwei Wu Zhen Gao Enzhong Wang Hong Min Zhihua Wei School of Software Engineering Tongji University Shanghai China System and Technology Group IBM Beijing China T. J. Watson Research Center IBM Yorktown Heights NY USA Dept. of Computer Science and Technology Tongji University Shanghai China

ISBN: (纸本)9781509034857

Business analytics is an important means of gaining new insights and understanding of business performance. Data mining technology provides information needed by business analytics based on data. But due to the barriers of skill, resource and cost, business analytics is hard to carry out and put into practice for small and even medium sized enterprises. This paper presents a novel concept named Highly Consumable Business Analytics (HCBA) aiming to improve consumability of business analytics. We discuss the ways to simplify the use of data mining algorithms, establish end-to-end integrated lifecycle management of model and ultimately wrap models into web service to provide model-wise services. We propose a general reference architecture of HCBA. And a prototype is designed and implemented based on this architecture.

关键词： Data models Data mining Business Production facilities Servers Engines Web services

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Metaheuristic design pattern: Preference 15

Metaheuristic design pattern: Preference

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17th Genetic and Evolutionary Computation Conference, GECCO 2015

作者： Aljawawdeh, Hamzeh J. Simons, Christopher L. Odeh, Mohammed Software Engineering Research Group Department of Computer Science and Creative Technologies University of the West of England BristolBS16 1QY United Kingdom

ISBN: (纸本)9781450334884

In interactive metaheuristic search, the human helps to steer the trajectory of the search by providing qualitative evaluation to assist in the selection of solution individuals. It can be challenging to design mechanisms to exploit human qualitative evaluation taking into account human trade-off judgments among competing criteria and implicit knowledge and experience. This paper addresses this challenge by proposing the Preference metaheuristic design pattern involving six abstractions across two dimensions: explicit and implicit knowledge and a priori, interactive and a posteriori timings. © 2015 ACM.

关键词： Economic and social effects

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Human Factors in the Design of Interactive Multimedia Art Installations (IMAIs)

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Procedia Manufacturing 2015年 3卷 4572-4577页

作者： Al-Ofisan, Ghadah Al-Wabil, Areej College of Computer and Information Sciences Prince Sultan University Riyadh Saudi Arabia United States Software and Knowledge Engineering Research Group King Saud University Riyadh Saudi Arabia United States

This study will shed light on the opportunities for improvements in the function of interaction between Interactive art installations and the spectators. Where a synthesis of the analysis and evaluation of sensory, cognitive and perceptual human and socio-cultural factors in various research studies and an undergoing case study will be presented. The main goal of this study is to enhance the user experience and bring it to a higher level by considering the human factors in the interactivity aspect, as we human beings have different levels of cognition and perception that will compose our experience with the IMAI. © 2015 The Authors

关键词： Human factors Interactive Multimedia Art Installations Interdisciplinary design Requirements engineering Socio-cultural factors

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Internet-Oriented Optimization Schemes for Joint Compression and Encryption

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China Communications 2015年第10期12卷 158-168页

作者： WANG Yilei CHANG Xiaotao Amit Golander Hubertus Franke CHEN Beijing School of Information and Electrical Engineering Ludong Universtiy Yantai 264025 China Asia Research & Development Group Microsoft Beijing 100192 China Plexistor Tel Aviv Israel. IBM Thomas J. Watson Research Center New York USA. School of Computer & Software Nanjing University of Information Science & Technology Nanjing 210044 China

Compression and encryption are widely used in network traffic in order to improve efficiency and security of some *** propose a scheme to concatenate both functions and run them in a paralle pipelined fashion,demonstrating both a hardware and a software *** minor modifications to the hardware accelerators,latency can be reduced to ***,we also propose a seminal and more efficient scheme,where we integrate the technology of encryption into the compression *** new integrated optimization scheme reaches an increase of 1.6X by using parallel software scheme However,the security level of our new scheme is not desirable compare with previous ***,we prove that this does not affect the application of our schemes.

关键词： compression and encryption 3DES Lempel-Ziv algorithm.

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CRITiCAL: A Configuration Tool for Context Aware and mobiLe Applications

CRITiCAL: A Configuration Tool for Context Aware and mobiLe ...

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IEEE Annual International computer software and Applications Conference (COMPSAC)

作者： Paulo Artur de Sousa Duarte Felipe Mota Barreto Francisco Anderson de Almada Gomes Windson Viana de Carvalho Fernando Antonio Mota Trinta Group of Comput. Networks Software Eng. & Syst. Universidade Federal do Ceara Fortaleza CE BR Group of Computer Networks Software Engineering and Systems Federal University of Ceara Fortaleza Brazil

This paper presents an approach for modelling and generating Context-Aware and Mobile (CAM) applications based on (i) Model-Driven engineering and (ii) context acquisition middleware concepts. Our approach allows software engineers to build CAM applications by modelling contextual information and rule-based behaviour on a visual notation. These graphical models are transformed into an Android-based code, targeted for a context-aware middleware called LoCCAM, which encapsulates device sensors access. An initial user evaluation conducted with a group of fourteen computer science volunteers was implemented and indicates time reduction gains in the middleware configuration process and that the complexity in the writing of contextual behaviour of applications is also decreased.

关键词： Middleware Context Context modeling DSL computer aided manufacturing Adaptation models

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Inferring an indeterminate string from a prefix graph

Inferring an indeterminate string from a prefix graph

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作者： Alatabbi, Ali Sohel Rahman, M. Smyth, W.F. Department of Informatics King's College London United Kingdom Department of Computer Science and Engineering Bangladesh University of Engineering and Science Bangladesh Algorithms Research Group Department of Computing and Software McMaster University Canada School of Engineering and Information Technology Murdoch University Australia

An indeterminate string (or, more simply, just a string) x=x[1.n] on an alphabet Σ is a sequence of nonempty subsets of Σ. We say that x[i1] and x[i2] match (written x[i1]≈x[i2]) if and only if x[i1]∩x[i2]∗. A feasible array is an array y=y[1.n] of integers such that y[1]=n and for every i∈2.n, y[i]∈0.n-i+1. A prefix table of a string x is an array π=π[1.n] of integers such that, for every i∈1.n, π[i]=j if and only if x[i.i+j-1] is the longest substring at position i of x that matches a prefix of x. It is known from [6] that every feasible array is a prefix table of some indeterminate string. A prefix graph P=Py is a labelled simple graph whose structure is determined by a feasible array y. In this paper we show, given a feasible array y, how to use Py to construct a lexicographically least indeterminate string on a minimum alphabet whose prefix table π=y. © 2014 Elsevier B.V. All rights reserved.

关键词： Reverse engineering

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Solution to reduce nonlinearity in LTE RoF system for an efficient DAS topology: A brief review (Invited)

Solution to reduce nonlinearity in LTE RoF system for an eff...

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International Symposium on Communication Systems, networks and Digital Signal Processing, CNSDSP

作者： T. Kanesan R. Mohamad S. M. Mitani H. M. Hizan W. P. Ng Z. Ghassemlooy P. A. Haigh S. Rajbhandari Son T. Le Gee-Kung Chang Telekom Malaysia R&D Cyberjaya Selangor Malaysia Optical Communications Research Group Northumbria University Newcastle upon Tyne U.K. High Performance Networks Group University of Bristol U.K. School of Computing Electronics and Mathematics Coventry University Coventry UK Aston Institute of Photonic Technologies Aston University Birmingham UK School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA

ISBN: (纸本)9781509025275

In this paper, a review on radio-over-fiber (RoF) technology is conducted to support the exploding growth of mobile broadband. An RoF system will provide a platform for distributed antenna system (DAS) as a fronthaul of long term evolution (LTE) technology. A higher splitting ratio from a macrocell is required to support large DAS topology, hence higher optical launch power (OLP) is the right approach. However, high OLP generates undesired nonlinearities, namely the stimulated Brillouin scattering (SBS). Three different aspects of solving the SBS process are covered in this paper, where the solutions ultimately provided an additional 4 dB link budget.

关键词： Long Term Evolution Frequency modulation Scattering Topology Macrocell networks Nonlinear distortion

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Stratus ML: A Layered Cloud Modeling Framework

Stratus ML: A Layered Cloud Modeling Framework

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IEEE International Conference on Cloud engineering (IC2E)

作者： Mohammad Hamdaqa Ladan Tahvildari Software Technologies Applied Research (STAR) Group Department of Electrical and Computer Engineering University of Waterloo Canada

The main quest for cloud stakeholders is to find an optimal deployment architecture for cloud applications that maximizes availability, minimizes cost, and addresses portability and scalability. Unfortunately, the lack of a unified definition and adequate modeling language and methodologies that address the cloud domain specific characteristics makes architecting efficient cloud applications a daunting task. This paper introduces Stratus ML: a technology agnostic integrated modeling framework for cloud applications. Stratus ML provides an intuitive user interface that allows the cloud stakeholders (i.e., providers, developers, administrators, and financial decision makers) to define their application services, configure them, specify the applications' behaviour at runtime through a set of adaptation rules, and estimate cost under diverse cloud platforms and configurations. Moreover, through a set of model transformation templates, Stratus ML maintains consistency between the various artifacts of cloud applications. This paper presents Stratus ML and illustrates its usefulness and practical applicability from different stakeholder perspectives. A demo video, usage scenario and other relevant information can be found at the Stratus ML webpage.

关键词： Clouds Adaptation models Unified modeling language Availability Computational modeling Runtime software

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Security modeling and analysis of a self-cleansing intrusion tolerance technique

Security modeling and analysis of a self-cleansing intrusion...

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International Symposium on Information Assurance and Security (IAS)

作者： Iman El Mir Dong Seong Kim Abdelkrim Haqiq Computer Networks Mobility and Modeling laboratory FST Hassan 1st University Settat Morocco Department of Computer Science and Software Engineering University of Canterbury New Zealand E-NGN Research Group

ISBN: (纸本)9781467387163

Since security is increasingly the principal concern in the conception and implementation of software systems, it is very important that the security mechanisms are designed so as to protect the computer systems against cyber attacks. An Intrusion Tolerance Systems play a crucial role in maintaining the service continuity and enhancing the security compared with the traditional security. In this paper, we propose to combine a preventive maintenance with existing intrusion tolerance system to improve the system security. We use a semi-Markov process to model the system behavior. We quantitatively analyze the system security using the measures such as system availability, Mean Time To Security Failure and cost. The numerical analysis is presented to show the feasibility of the proposed approach.

关键词： Markov processes Servers Numerical models computer architecture Preventive maintenance computer crime

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