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International Conference on Mobile Data Management

作者： Hossein Tayebi Shonali Krishnaswamy Augustinus Borgy Waluyo Abhijat Sinha Mohamed Medhat Gaber Centre for Distributed Systems and Software Engineering Monash University Melbourne Australia School of Computing University of Portsmouth Portsmouth United Kingdom

There is a growing focus on 24/7 cardiac monitoring that leverages state of the art mobile phones and commercial-off-the-shelf (COTS) wearable bio-sensors. While many signal processing techniques for mobile ECG analysis have been developed, these techniques tend to be computationally intensive. In this paper, we propose, develop and evaluate a resource-aware and energy-efficient time series analysis technique for real-time ECG analysis on mobile devices based on the well-known SAX (Symbolic Aggregate Approximation) representation for time series termed RA-SAX.

关键词： Electrocardiography Mobile communication Clustering algorithms Classification algorithms Smart phones Accuracy

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A model of factors affecting an information system's change in state

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Journal of software Maintenance and Evolution 2001年第4期13卷 245-261页

作者： Black, Sue Centre for Systems and Software Engineering South Bank University London SE1 0AA United Kingdom Centre for Systems and Software Engineering School of Computing Information Systems and Mathematics South Bank University 103 Borough Road London SE1 0AA United Kingdom

This paper utilizes a theoretically-grounded model of information systems change together with data from 1891 maintenance projects to test the effects that four factors have on the volatility index of application software. The volatility index is a measure of the relative cost of doing maintenance on the deep structure of a system. Two factors were found to be associated with a higher volatility index, the age of the system and the size of the system. One factor was found to be associated with a lower volatility index, the use of higher-level languages of implementation. One factor was found to be unrelated to the volatility index, the time period when the change was made. Some factors may be under management control, e.g. the language of implementation, while others are usually system characteristics, e.g. system size. Knowledge of the effects of these factors could influence how researchers work with information systems and how information systems management does its work.

关键词： Computer software maintenance

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Communications in Computer and Information Science: Preface

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Communications in Computer and Information Science 2012年 301 CCIS卷 V-VIII页

作者： Winkler, Dietmar O'Connor, Rory V. Messnarz, Richard Institute of Software Technology and Interactive Systems Vienna University of Technology Austria Lero The Irish Software Engineering Research Centre School of Computing Dublin City University Ireland ISCN GesmbH Graz Austria

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A Pair-Oriented Requirements engineering Approach for Analysing Multi-lingual Requirements

A Pair-Oriented Requirements Engineering Approach for Analys...

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1st Asia Pacific Requirements engineering Symposium, APRES 2014

作者： Kamalrudin, Massila Sidek, Safiah Salleh, Norsaremah Hosking, John Grundy, John Innovative Software System and Services Group Universiti Teknikal Malaysia Melaka Melaka Malaysia Department of Computer Science International Islamic University Malaysia 50728 Kuala Lumpur Malaysia College of Engineering and Computer Science Australian National University ACT ACT 0200 Australia Centre for Computing and Engineering Software Systems Swinburne University of Technology PO Box 218 Hawthorn VIC 3122 Australia

ISBN: (纸本)9783662436097

Requirements written in multiple languages can lead to error-proneness, inconsistency and incorrectness. In a Malaysian setting, software engineers are exposed to both Malay and English requirements. This can be a challenging task for them especially when capturing and analyzing requirements. Further, they face difficulties to model requirements using semi-formal or formal models. This paper introduces a new approach, Pair-Oriented Requirements engineering (PORE) that uses an Essential Use Case (EUC) model to capture and analyze multi-lingual requirements. This approach is intended to assist practitioners in developing correct and consistent requirements as well as developing teamwork skills. Two quasi-experiment studies involving 80 participants in the first study and 38 participants in a subsequent study were conducted to evaluate the effectiveness of this approach with respect to correctness and time spent in capturing multi-lingual requirements. It was found that PORE improves accuracy and hence helps users perform better in developing high quality requirements models. © Springer-Verlag Berlin Heidelberg 2014.

关键词： Requirements engineering

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KB-CB-N classification: Towards unsupervised approach for supervised learning

KB-CB-N classification: Towards unsupervised approach for su...

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IEEE Symposium on Computational Intelligence and Data Mining (CIDM)

作者： Zahraa Said Abdallah Mohamed Medhat Gaber Centre of Distributed Systems and Software Engineering Monash University Caulfield VIC Australia School of Computing University of Portsmouth Portsmouth Hampshire UK

Data classification has attracted considerable research attention in the field of computational statistics and data mining due to its wide range of applications. K Best Cluster Based Neighbour (KB-CB-N) is our novel classification technique based on the integration of three different similarity measures for cluster based classification. The basic principle is to apply unsupervised learning on the instances of each class in the dataset and then use the output as an input for the classification algorithm to find the K best neighbours of clusters from the density, gravity and distance perspectives. Clustering is applied as an initial step within each class to find the inherent in-class grouping in the dataset. Different data clustering techniques use different similarity measures. Each measure has its own strength and weakness. Thus, combining the three measures can benefit from the strength of each one and eliminate encountered problems of using an individual measure. Extensive experimental results using eight real datasets have evidenced that our new technique typically shows improved or equivalent performance over other existing state-of-the-art classification methods.

关键词： Clustering algorithms Gravity Training Prediction algorithms Density measurement Classification algorithms Euclidean distance

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HorusCML: Context-aware domain-specific visual languages designer

HorusCML: Context-aware domain-specific visual languages des...

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IEEE Symposium on Visual Languages and Human Centric computing (VL/HCC)

作者： Mohamed Almorsy John Grundy Ulf Rüegg Centre for Computing and Engineering Software and Systems Swinburne University of Technology Hawthorn Australia Department of Computer Science Kiel University Kiel Germany

The objective behind building domain-specific visual languages (DSVLs) is to provide users with the most appropriate concepts and notations that best fit with their domain and experience. However, the existing DSVL designers do not support integrating environment and user context information when modeling, editing or viewing DSVL models at different locations, permissions, devices, etc. In this paper, we introduce HorusCML, a context-aware DSVL designer, which supports DSVL experts in integrating necessary context details within their DSVLs. The resultant DSVLs can reflect different facets, layouts, and behaviours according to context it is used in. We show a case study on developing a context-aware data flow diagram DSVL tool using HorusCML.

关键词： Context Visualization Layout Context modeling Unified modeling language Monitoring software

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A worldwide survey of base process activities towards software engineering process excellence

A worldwide survey of base process activities towards softwa...

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International Conference on software engineering (ICSE)

作者： Yingxu Wang G. King A. Dorling D. Patel I. Court G. Staples M. Ross School of Computing Information Systems and Mathematics South Bank University London UK Research Center for Systems Engineering Southampton Institute Southampton UK IVF Centre for Software Engineering Sweden

A survey has been designed to seek the practical foundation of base process activities (BPAs) in the software industry and to support research in modelling the software engineering processes. A superset of BPAs compatible with the current software process models, such as SPICE (ISO 15504), CMM, ISO 9000 and BOOTSTRAP, were identified for the construction of the questionnaires. This paper reports the survey findings on BPAs in software engineering processes. A summary of the current software engineering process techniques and practices modelled by 83 BPAs in 10 processes and three categories is given. Each BPA is benchmarked on attributes of mean importance and ratios of significance, practice and effectiveness. Based on the benchmarks, and by comparing with the current practice of the reader's organization, recommendations can be given on which specific areas need to have processes established first, and which areas should be highest priority for process improvement.

关键词： software engineering SPICE Coordinate measuring machines Benchmark testing systems engineering and theory In vitro fertilization Programming software testing System testing Information systems

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ERTL: An extension to RTL for the specification, analysis and verification of hybrid systems

ERTL: An extension to RTL for the specification, analysis an...

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8th Euromicro Workshop on Real-Time systems, ECRTS 1996

作者： Hall, J.G. De Lemos, R. High Integrity Systems Engineering Group Department of Computer Science University of York YO1 5DD United Kingdom Centre for Software Reliability Department of Computing Science University of Newcastle Upon Tyne NE1 7RU United Kingdom

ISBN: (纸本)0818674962

Real time logic (RTL) was introduced as a formalism for reasoning about the relative and absolute timing properties of computational tasks of discrete real-time systems. Extended real time logic (ERTL) is a formalism for the modelling and analysis of relative and absolute timing properties of hybrid systems (systems that combine continuous variables and discrete event dynamics). The extensions provided by ERTL enable the modelling of system behaviour ranging from activities of the physical entities that form part of the environment of a computing system, to the temporal ordering of the computational tasks of the computing system itself thus providing a formal notation that can be used in all stages of software development. © 1996 IEEE.

关键词： Real time systems

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Extended RTL in the specification and verification of an industrial press 5th

Extended RTL in the specification and verification of an ind...

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5th DIMACS/SYCON Workshop on Verification and Control of Hybrid systems, 1995

作者： de Lemos, Rogério Hall, Jon G. Centre for Software Reliability Department of Computing Science University of Newcastle upon Tyne NE1 7RU United Kingdom High Integrity Systems Engineering Group Department of Computer Science University of York YO1 5DD United Kingdom

ISBN: (纸本)354061155X

Extended Real Time Logic (ERTL) is proposed for the modelling and analysis of hybrid systems, taking as a basis Real Time Logic (RTL). RTL is a first order logic with uninterpreted predicates which relate events of a system to the time of their occurrence, thereby providing the means for reasoning about absolute timing properties of real-time systems. The extensions provided by ERTL allow reasoning about system behaviour in both value and time domains through predicates defined in terms of system variables. We illustrate the use of ERTL through the modelling and analysis of an industrial press. © Springer-Verlag Berlin Heidelberg 1996.

关键词： Presses (machine tools)

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StreamAR: Incremental and Active Learning with Evolving Sensory Data for Activity Recognition

StreamAR: Incremental and Active Learning with Evolving Sens...

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International Conference on Tools with Artificial Intelligence

作者： Zahraa Said Abdallah Mohamed Medhat Gaber Bala Srinivasan Shonali Krishnaswamy Centre for Distributed Systems and Software Engineering Monash University School of Computing University of Portsmouth Institute for Infocomm Research (I2R)

ISBN: (纸本)9781479902279

Activity recognition focuses on inferring current user activities by leveraging sensory data available on today's sensor rich environment. Supervised learning has been applied pervasively for activity recognition. Typical activity recognition techniques process sensory data based on point-by-point approaches. In this paper, we propose a novel cluster-based classification for activity recognition systems, termed StreamAR. The system incorporates incremental and active learning for mining user activities in data streams. The novel approach processes activities as clusters to build a robust classification framework. StreamAR integrates supervised, unsupervised and active learning and applies hybrid similarity measures technique for recognising activities. Extensive experimental results using real activity recognition datasets have evidenced that our new approach shows improved performance over other existing state-of-the-art learning methods.

关键词： Experiential Learning Activity recognition Incremental Sensation

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