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Towards an integrated formal method for verification of liveness properties in distributed systems: with application to population protocols

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SOFTWARE AND systemS modeling 2017年第4期16卷 1083-1115页

作者： Mery, Dominique Poppleton, Michael Univ Lorraine LORIA BP 239 F-54506 Vandoeuvre Les Nancy France Univ Southampton Sch Elect & Comp Sci Southampton SO17 1BJ Hants England

Statebased formal methods [e.g. Event-B/RODIN (Abrial in modeling in EventBsystem and software engineering. Cambridge University Press, Cambridge, 2010;Abrial et al. in Int J Softw Tools Technol Transf (STTT) 12(6): 447466, 2010)] for critical system development and verification are now well established, with track records including tool support and industrial applications. The focus of proofbased verification, in particular, is on safety properties. Liveness properties, which guarantee eventual, or converging computations of some requirements, are less well dealt with. Inductive reasoning about liveness is not explicitly supported. Liveness proofs are often complex and expensive, requiring highskill levels on the part of the verification engineer. Fairnessbased temporal logic approaches have been proposed to address this, e.g. TLA Lamport (ACM Trans Program Lang Syst 16(3): 872923, 1994) and that of Manna and Pnueli (Temporal verification of reactive systemssafety. Springer, New York, 1995). We contribute to this technology need by proposing a fairness-based method integrating temporal and firstorder logic, proof and tools for modelling and verification of safety and liveness properties. The method is based on an integration of EventB and TLA. Building on our previous work (Mery and Poppleton in Integrated formal methods, 10th international conference, IFM 2013, Turku, Finland, pp 208-222, 2013. doi: 10.1007/978-3-642-38613-8_15), we present the method via three example population protocols Angluin et al. (Distrib Comput 18(4): 235-253, 2006). These were proposed as a theoretical framework for computability reasoning about Wireless Sensor Network and Mobile Ad-Hoc Network algorithms. Our examples present typical liveness and convergence requirements. We prove convergence results for the examples by integrated modelling and proof with Event-B/RODIN and TLA. We exploit existing proof rules, define and apply three new proof rules;soundness proofs are also provided. Du

关键词： Refinement Formal method Distributed sytems Verification Liveness Fairness

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Service Innovation Management Models: Planned, Iterative and Emergent Innovations

Service Innovation Management Models: Planned, Iterative and...

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Portland international conference on Management of Engineering and Technology (PICMET)

作者： Kitsuta, Carla M. Quadros, Ruy Univ Estadual Campinas Dept Sci & Technol Policy Campinas SP Brazil

ISBN: (纸本)9781890843366

Although service innovations present characteristics that make them different from innovation in goods, literature presents traditional innovation management models, whose development has been based on the experience of manufacturing industries, as valid and applicable to service companies. Service innovation may take place in multiple dimensions, considering technological and non-technological elements. It may result from planned efforts, but can also emerge from the service practice, what indicates that these models may not be the only way open to service companies. The present article analyzes whether reference models for innovation management, which have influenced new product and service development activities, are suitable and adopted by service companies in the information technology (IT) sector in Brazil. We analyzed data from 10 Brazilian IT service companies, supplying software development, systems integration and mobile services development. Findings suggest that traditional reference models for innovation management are suitable to service companies, but three other possibilities were identified. These possibilities relate to the innovation processes discussed by Toivonen (2010) and are identified here as (i) compression rapid application model, (ii) experiential rapid application model and (iii) practice-driven model. Even though innovation management models are not able to capture all diversity present in service sectors, acknowledgement of the different service innovation dimensions and innovation processes allow service companies to improve their understanding, develop competencies, and organize better their innovation efforts.

关键词： Technological innovation Companies Biological system modeling Innovation management Mobile communication Telecommunications Analytical models

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Mobile App Security by Fragmentation "MASF" 17

Mobile App Security by Fragmentation "MASF"

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2nd international conference on Internet of things, Data and Cloud Computing (ICC)

作者： El Mrabti, Almokhtar Ait Ammari, Najim Abou El Kalam, Anas Ouahman, Abdellah Ait De Montfort, Mina Cadi Ayyad Univ Natl Sch Appl Sci OSCARS Lab Ave Abdelkarim KhattabiPOB 575 Marrakech Morocco ARTIMIA 75 St Guy Moquet F-92240 Malakoff France

ISBN: (纸本)9781450347747

Mobile cloud computing (MCC) appears as a new computing paradigm which offers computer applications and services with high performance. MCC combines mobile computing and cloud computing, has become one of the main threads of discussion in the IT world since 2010. Smartphones are considered as the representative for the several mobile devices as they have been connected to the Internet with the rapidly growing of wireless network technology or mobile generation network (3G, 4G or 5G). Furthermore, the security presents the important challenge not just in the MCC architecture but also in the smartphone. In this paper, we focus our study in mobile application security because it considered as standard terminal used in MCC. Especially, we present the global architecture and the security of android as popular operating system for mobile phone. In our proposal design, we investigate the possibility to use the fragmentation technique with security policy strategies as access security mechanism to protect data from installed application. The paper concludes by strongly suggesting that can be as future research.

关键词： Mobile application Cloud Computing Mobile Computing Android Data Security Fragmentation technique

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TT-BIP: Using Correct-by-Design BIP Approach for Modelling Real-Time system with Time-Triggered Paradigm 1

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11th international conference on Verification and Evaluation of computer and Communication systems (VECoS)

作者： Guesmi, Hela Ben Hedia, Belgacem Bliudze, Simon Bensalem, Saddek Le Nabec, Briag CEA LIST PC 172 F-91191 Gif Sur Yvette France EPFL IC IIF RiSD CH-1015 Lausanne Switzerland Verimag F-38610 Gieres France

ISBN: (数字)9783319661766

ISBN: (纸本)9783319661766;9783319661759

In order to combine advantages of Real-Time Operating systems (RTOS) implementing the Time-Triggered (TT) execution model and model-based design frameworks, we aim at proposing a correct-by-design methodology that derives correct TT implementations from high-level models. This methodology consists of two main steps;(1) transforming the high-level model into an intermediate which respects the TT communication principles and where all communication between components are simple send/receive interactions, and (2) transforming the obtained intermediate model into the programming language of the target platform. In this paper, we focus on the presentation of the methodology of the first step of the design flow. This methodology produces a correct-by-construction TT model by starting from a high-level model of the application software in Behaviour, Interaction, Priority (BIP).

关键词： Component-based design Time-triggered paradigm Model to model transformation Correct-by-design transformation Formal methods

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Implementing interchange of legal data under information system using a subset by deriving on the form of akoma ntosa in context of right to information by encoding application and appeal

Implementing interchange of legal data under information sys...

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2017 international conference On Smart Technology for Smart Nation, SmartTechCon 2017

作者： Kumar Singh, Manoj Mishra, Anuranjan Noida International University Greater Noida U.R. India Department of Computer Science and Engineering Noida International University Greater Noida U.P. India

ISBN: (纸本)9781538605684

Our law enforcing system called as Indian Legal system is lacking in terms of computerisation intelligent enough to enable law open for everybody. We are moving towards Digital India in all spheres of activity. In our country majority of people are not aware of the law of the land. AKOMA-NTOSO is an international technical standard for representing judiciary documents in addition to executive & legislative in a structured manner. We can call it XML vocabulary on law and it suggests also a convention of giving name for providing unique identifier to legal sources based on FRBR mode. There is no effort has been made to create standard representation of law in India. The subject matter of the paper goes into detail of creation of standard representation of parts of RTI Act 2005 for its implementation under a given circumstances. The process model of second appeal was undertaken. It was found that majority of RTI appeals at CIC are returned only for the reason that rule 8 and 9 of the RTI Act has not been fulfilled. The study captured the process of filing second appeal and created a schema of representation of various components and system prototype to check the compliance before accepting second appeal. The schema was created using subset of AKOMA-NTOSO schema, XML & HTML standard. The result shows that quality of services are improved by eighty percent(80%) and it has the potential to augment the way to create schema for entire RTI ACT. There are challenges associated with complexities in judicial system and quality of encoding of law on the basis of schema created and development of system to act accordingly. The study provided evidence that data on law can be interchanged among various system with semantic and technical interpretability. © 2017 IEEE.

关键词： XML

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From measurement to machine learning: Towards analysing cognition

From measurement to machine learning: Towards analysing cogn...

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international Winter Workshop on Brain-computer Interface (BCI)

作者： K.-R. Müller Machine Learning Group TU Berlin Berlin Germany Dept. of Brain and Cognitive Engineering Korea University Seoul Korea

This article discusses machine learning and BCI efforts of the BBCI team and co-workers with the general focus on analysing cognition. Due to the fact that many different aspects are reviewed, a high overlap to prior own contributions is not only unavoidable but intentional. When analysing cognition, it is often useful to combine information from various modalities (see e.g. Biessmann et al., 2011, Sui et al., 2012). In BCI recently muItimodal fusion concepts have received great attention under the label hybrid BCI (Pfurtscheller et al., 2010, Müller-Putz et al. 2015, Dähne et al. 2015, Fazli et al. 2012, 2015) or as data analysis technique for extracting (non-) linear relations between data (see e.g. Biessmann et al., 2011, Fazli et al., 2015, Dähne et al., 2015, Samek et al. 2016a). They are rooted in the modem machine leaming and signal processing techniques that are now available fot, analysing EEG, for decoding mental states etc. (see Müller et al. 2008, Bünau et al. 2009, Tomioka and Müller, 2010, Blankertz et al., 2008, 2011, 2016, Lemm et al., 2011, for recent reviews and contributions to Machine Learning for BCI, see Samek et al. 2014 for, a review on robust methods). Note that fusing information has also been a very common practice in the sciences and engineering (Waltz and Llinas, 1990). The talk will discuss recent technical work from the BBCI group that are intended to broaden the application spectrum of Brain computer Interfaces. I will first report on a novel simuItaneous measurement method for NIRS and EEG that is miniaturized, wireless and has low noise properties (von Lühmann et al. 2016); it is well suited for performing future out-of-Iab BCI experiments, In addition, I will expand on technical advances in unsupervised ML-based BCI analysis that allows to use of label proportions and can thus helps to avoid the usual calibration phase (Hübner et al. 2016, cf. also Kindermans et al. 2014). Finally, if time permits, an application of the explanation

关键词： Biological system modeling Brain modeling Computational modeling Neuroscience Monitoring Biomedical monitoring

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application Research for the Urban Ecological Index Prediction Based on the Grey system Prediction Model

Application Research for the Urban Ecological Index Predicti...

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2017 international conference on Applied Mathematics, modeling and Simulation (AMMS2017)

作者： Li Yu Jiaquan Wang School of Computer Science and Project Anhui University of Science and Technology School of Resources and Environmental Engineering Hefei University of Technology

City along the Huaihe river in understanding the natural environment and social economic conditions, based on statistics from the city's urban ecological support systems ecology quantitative 2006-2010 values, and accordingly based on multiple factors associated predictive model of gray system GM(1, N) and the corresponding test methods, for 2011 to 2020 for urban ecosystem index for prediction. Good prediction is achieved.

关键词： urban ecological indicators gray model forecast

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A systematic Literature Review on Mobile Learning in Saudi Arabia

A Systematic Literature Review on Mobile Learning in Saudi A...

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ACS/IEEE international conference on computer systems and applications

作者： R. A. Abdulrahman E. Benkhelifa School of Computing & Digital Technologies Staffordshire University Staffordshire United Kingdom

the aim of this paper is to collects, document, examine and critically analyze the current research literature on mobile learning (m-learning) in higher education institutes HEIs in the Kingdom of Saudi Arabia (KSA) published between 2010 and 2017. It explores the acceptance of using the m-learning, the factors that influence the deployment of m-learning. Investigate the trends in m-learning by systematically analyzing the previous studies. explores new emerging practices relating to the use of mobile technologies in nursing education; identify gaps in the research literature of the m-learning. The result shows there is reasonable evidence that the HEIs in Saudi Arabia face considerable factors in implementing m-learning. Also shows that significant studies assessing the effectiveness of m-learning within Saudi Arabia HEIs are lacking and existing studies lacked a theoretical framework. The absence of studies reporting on existing m-learning study reflects the limited penetration of this technology and associated pedagogies and a need to strengthen research in the field of m-learning in the KSA.

关键词： systematics Education Bibliographies Medical services Data mining Biological system modeling Analytical models

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Survey on development of expert system from 2010 to 2015 16

Survey on development of expert system from 2010 to 2015

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2nd international conference on Information and Communication Technology for Competitive Strategies, ICTCS 2016

作者： Jabbar, Haider Khalaf Zaman Khan, Rafiqul University of Misan Misan Iraq and Department of Computer Science Aligarh Muslim University Aligarh202002 India Department of Computer Science Aligarh Muslim University Aligarh202002 India

ISBN: (纸本)9781450339629

In this paper we survey development of Expert system by methodologies and applications from 2010 to 2015 through a literature review and classification papers as a basis. This paper surveys and classifies Expert system methodologies using four categories: Intelligent agents, modeling, Ontology and system architecture with their applications for different research and problem domains. Additionally discussion was presented, and from this discussion we provided some suggestion that should be taken into consideration in the future regarding to the development of Expert systems in methodologies and applications: first, Expert systems methodologies are destined to develop by using expertise of Expert system applications in the domain. Secondly, the different social science methodologies should be including also to give more opportunity for explores the methodologies and applications. Thirdly, the ability to continually change and get new understanding is the driving power of Expert system methodologies, and should be the Expert systems application of future works. © 2016 ACM.

关键词： Expert systems

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Numerical simulations of electromagnetic scattering by Solar system objects

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JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2016年第0期183卷 38-55页

作者： Dlugach, Janna M. Natl Acad Sci Ukraine Main Astron Observ 27 Zabolotny Str UA-03680 Kiev Ukraine

Having been profoundly stimulated by the seminal work of Viktor V. Sobolev, I have been involved in multi-decadal research in the fields of radiative transfer, electromagnetic scattering by morphologically complex particles and particulate media, and planetary remote sensing. Much of this research has been done in close collaboration with other "descendants" of Academician Sobolev. This tutorial paper gives a representative overview of the results of extensive numerical simulations (in the vast majority carried out in collaboration with Michael Mishchenko) used to analyze remote-sensing observations of Solar system objects and based on highly accurate methods of the radiative transfer theory and direct computer solvers of the Maxwell equations. Using the atmosphere of Jupiter as a proving ground and performing T-matrix and radiative-transfer calculations helps demonstrate the strong effect of aerosol-particle shapes on the accuracy of remote sensing retrievals. I then discuss the application of the T-matrix method, a numerically exact solution of the vector radiative transfer equation, and the theory of coherent backscattering to an analysis of polarimetric radar observations of Saturn's rings. Numerical modeling performed by using the superposition T-matrix method in application to cometary dust in the form of aggregates serves to reproduce the results of polarimetric observations of the distant comet C/2010 S1. On the basis of direct computer solutions of the Maxwell equations, it is demonstrated that all backscattering effects predicted by the low-density theories of radiative transfer and coherent backscattering can also be identified for media with volume packing densities typically encountered in natural and artificial environments. This result implies that spectacular opposition effects observed for some high-albedo atmoshereless Solar system bodies can be attributed to coherent backscattering of sunlight by regolith layers composed of microscopic particles.

关键词： Electromagnetic scattering Maxwell's equations Radiative transfer theory Coherent backscattering Opposition effects

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