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International Joint Conference on computer science and software engineering (JCSSE)

作者： Kaenchan Thammarak Sarun Intakosum Software Systems Engineering Laboratory Department of Mathematics and Computer Science Faculty of Science King Mongkut's Institute of Technology Bangkok Thailand

Metric is extremely important for software development. It is a tool for measuring software in both quantitative and qualitative aspects. In addition, metric can be used for determining an achievement of the goals. There are some problems that bring difficulties to the design and development of software metrics. Among them, a number of software perspectives that metrics must handle and the way to apply metrics results to support business outcomes are considered important. This paper proposes OPI as a model for implementing software metrics based on business outcomes. There are three steps in this model, defining outcomes (O), defining perspectives (P), and defining indicators (I). A case study has been developed to assess the use of the proposed model. Forty undergraduate students, who have basic knowledge in software metric, use the model to develop metrics from the case study. The preliminary evaluation is based on usability aspect. The result has show that 85 percents of the students think that the model is easy to understand, where 8 and 7 percents say that it is moderate and hard respectively.

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QoS-aware Deployment of Network of Virtual Appliances Across Multiple Clouds

QoS-aware Deployment of Network of Virtual Appliances Across...

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IEEE International Conference on Cloud Computing Technology and science (CloudCom)

作者： Amir Vahid Dastjerdi Saurabh Kumar Garg Rajkumar Buyya Cloud Computing and Distributed Systems (CLOUDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Parkville VIC Australia

Cloud computing paradigm allows on-demand access to computing and storages services over the Internet. To solve the complexity of application deployment in Cloud infrastructure, virtual appliances, pre-configured, ready-to-run applications are emerging as a breakthrough technology. However, an automated approach for deploying network of appliances is required to guarantee minimum deployment cost, low latency, and high reliability. In this paper, we propose and compare two different deployment approaches: Forward-checking-based backtracking (FCBB) and genetic-based. They take into account Quality of Service (QoS) criteria such as reliability, data communication cost, and latency between multiple Clouds to choose the most appropriate combination of virtual machines and appliances. We evaluate our approach using a real case study and different request types. Experimental results show both algorithms reach near optimal solution. Further, we investigate effects of factors such as latency requirements, and data communication between appliances on the performance of the algorithms and placement of appliances across multiple Clouds.

关键词： Home appliances Quality of service Servers Monitoring Cloud computing Availability

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A new share frequent itemsets mining using incremental BitTable knowledge

A new share frequent itemsets mining using incremental BitTa...

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International Conference on computer sciences and Convergence Information Technology (ICCIT)

作者： Chayanan Nawapornanan Veera Boonjing Software Systems Engineering Laboratory Department of Mathematics and Computer Science Faculty of Science King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

The share measure has been proposed as an important measure for mining association rules. The value of share itemsets provides useful information such as total profits and total customer purchased quantities associated with itemsets in database. The share-frequent itemsets mining problems become a very important research issue in data mining. Existing share-frequent itemsets mining algorithms are based on static database so knowledge must be rebuilded when the minimum share threshold is changed or database is modified either appended or updated. This paper proposes a novel BitTable knowledge for incremental and interactive share-frequent itemsets mining in multiple minimum share thresholds without rebuilding BitTable knowledge. It is effective for incremental and interactive mining to take advantage of the previous BitTable knowledge and the previous mining results.

关键词： Itemsets Algorithm design and analysis Association rules computer science

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Heart Disease Classification Using Neural Network and Feature Selection

Heart Disease Classification Using Neural Network and Featur...

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IEEE International Conference on systems engineering

作者： Anchana Khemphila Veera Boonjing Software Systems Engineering Laboratory Department of Mathematics and Computer Science Faculty of Science King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

In this study, we introduces a classification approach using Multi-Layer Perceptron (MLP)with Back-Propagation learning algorithm and a feature selection algorithm along with biomedical test values to diagnose heart disease. Clinical diagnosis is done mostly by doctor's expertise and experience. But still cases are reported of wrong diagnosis and treatment. Patients are asked to take number of tests for diagnosis. In many cases, not all the tests contribute towards effective diagnosis of a disease. Our work is to classify the presence of heart disease with reduced number of attributes. Original, 13 attributes are involved in classify the heart disease. We use Information Gain to determine the attributes which reduces the number of attributes which is need to be taken from patients. The Artificial neural networks is used to classify the diagnosis of patients. Thirteen attributes are reduced to 8 attributes. The accuracy differs between 13 features and 8 features in training data set is 1.1% and in the validation data set is 0.82%.

关键词： Diseases Data mining Heart Accuracy Medical diagnostic imaging Neurons Databases

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SMICloud: A Framework for Comparing and Ranking Cloud Services

SMICloud: A Framework for Comparing and Ranking Cloud Servic...

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IEEE International Conference on Utility and Cloud Computing (UCC)

作者： Saurabh Kumar Garg Steve Versteeg Rajkumar Buyya Cloud Computing and Distributed Systems (CLOUDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia CA Technologies Melbourne Australia

With the growth of Cloud Computing, more and more companies are offering different cloud services. From the customer's point of view, it is always difficult to decide whose services they should use, based on users' requirements. Currently there is no software framework which can automatically index cloud providers based on their needs. In this work, we propose a framework and a mechanism, which measure the quality and prioritize Cloud services. Such framework can make significant impact and will create healthy competition among Cloud providers to satisfy their Service Level Agreement (SLA) and improve their Quality of Services (QoS).

关键词： Quality of service Time factors Cloud computing Organizations Measurement Security Indexes

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A conceptual framework for semantic case-based safety analysis

A conceptual framework for semantic case-based safety analys...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Olawande Daramola Tor Stålhane Thomas Moser Stefan Biffl Department of Computer and Information Science Norwegian University of Science and Technology Norway Christian Doppler Laboratory for Software Engineering Integration for Flexible Automation Systems Vienna University of Technology Austria

Hazard and Operability (HAZOP) Analysis and Failure Mode and Effect Analysis (FMEA) are among the most widely used safety analysis procedures in the development of safety-critical and embedded systems. These analyses are generally perceived as complex and time-consuming, hindering an effective reuse of previous results or experiences. In this paper we present a conceptual semantic case-based framework for safety analysis, which facilitates the reuse of previous HAZOP and FMEA experiences in order to reduce the time and effort associated with these analyses. We present the core technologies of the conceptual framework and evaluated a prototype of the framework, KROSA, in an experiment with domain experts at ABB Norway. Initial results confirm the viability of the conceptual framework for industrial application.

关键词： Ontologies Semantics Natural language processing Libraries Hazards Humans

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MIND: A black-box energy consumption model for disk arrays

MIND: A black-box energy consumption model for disk arrays

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International Green Computing Conference

作者： Zhuo Liu Jian Zhou Weikuan Yu Fei Wu Xiao Qin Changsheng Xie Key Laboratory of Data Storage Systems Ministry of Education Wuhan National Laboratory for Optoelectronics School of Computer Science and Technology Huazhong University of Science and Technology Wuhan Hubei China Department of Computer Science & Software Engineering Aubum University AL USA

Energy consumption is becoming a growing concern in data centers. Many energy-conservation techniques have been proposed to address this problem. However, an integrated method is still needed to evaluate energy efficiency of storage systems and various power conservation techniques. Extensive measurements of different workloads on storage systems are often very time-consuming and require expensive equipments. We have analyzed changing characteristics such as power and performance of stand-alone disks and RAID arrays, and then defined MIND as a black box power model for RAID arrays. MIND is devised to quantitatively measure the power consumption of redundant disk arrays running different workloads in a variety of execution modes. In MIND, we define five modes (idle, standby, and several types of access) and four actions, to precisely characterize power states and changes of RAID arrays. In addition, we develop corresponding metrics for each mode and action, and then integrate the model and a measurement algorithm into a popular trace tool - blktrace. With these features, we are able to run different IO traces on large-scale storage systems with power conservation techniques. Accurate energy consumption and performance statistics are then collected to evaluate energy efficiency of storage system designs and power conservation techniques. Our experiments running both synthetic and real-world workloads on enterprise RAID arrays show that MIND can estimate power consumptions of disk arrays with an error rate less than 2%.

关键词： Power measurement Benchmark testing Throughput

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Evaluation method with measureable space-time dynamic properties for mobile Ad Hoc networks

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Ruan Jian Xue Bao/Journal of software 2011年第6期22卷 1333-1349页

作者： Wang, Wei Guan, Xiao-Hong Wang, Bei-Zhan Wang, Ya-Ping State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China School of Computer Science Xi'an Polytechnic University Xi'an 710048 China School of Software Xiamen University Xiamen 361005 China Department of Industrial and Systems Engineering Texas A and M University TX 77843 United States

Mobility model is a crucial feature to differentiate ad hoc networks from other networks. The evaluation of dynamic network properties caused by mobility model is the basic problem for research on protocol simulation and related technologies, such as topology control and network performance measurement, in ad hoc networks. In this paper, a model-based description of ad hoc networks is improved to avoid the drawbacks in describing the corresponding space-time dynamic properties. Then a universal evaluation method with measureable space-time dynamic properties is presented. The dynamic properties of several mobility models are studied by constructing the space distribution of the nodes and designing the models for analyzing the topological space-time dynamic properties. Furthermore, a novel mobility model based on circular curve movement is proposed to improve the flexibility and the capability to describe realistic scenarios with curve movement. Simulation with NS2 shows the presented method can effectively evaluate the characteristics of the existing mobility models. The numerical results also show that the proposed mobility model has good dynamic properties in comparison with the existing mobility models. ©2011 ISCAS.

关键词： Mobile ad hoc networks

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Design of a robot cloud center

Design of a robot cloud center

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International Workshop on Assurance in Distributed systems and Networks

作者： Du, Zhihui Yang, Weiqiang Chen, Yinong Sun, Xin Wang, Xiaoying Xu, Chen Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and Technology Tsinghua University 100084 Beijing China School of Software and Microelectronics Peking University 102600 Beijing China School of Computing Informatics and Decision Systems Engineering Arizona State University Tempe AZ 85287 United States Department of Computer Technology and Application Qinghai University Xining Qinghai 810016 China International School Beijing University of Posts and Telecommunications 102209 Beijing China

ISBN: (纸本)9780769543499

Service-oriented architecture and cloud computing have become the prevalent computing paradigm. In this paradigm, computing resources can be accessed like other utility services available in today's society. In the meantime, robotics applications are joining the trend. More and more robot applications are shifting from manufacture to non-manufacture and service industries. However, for the on-demand supply of the large-scale heterogeneous robots, It is still a problem have not yet been studied, including the fundamental management and efficiency issues in using of these resources. In this paper, we design a framework of "Robot Cloud Center" (RCC) following the general cloud computing paradigm to address the current limitations in capacity and versatility of robotic applications. In this framework, a robot can be provided as a service just like a public utility service so that everyone can access the powerful robotic services easily, efficiently, and cheaply. Based on a given scenario, a robot scheduling algorithm in RCC is proposed to take advantage of the heterogeneous robot resources to meet the end user's requirement with the minimum cost.

关键词： Robot programming

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Frontier-based multi-robot map exploration using Particle Swarm Optimization

Frontier-based multi-robot map exploration using Particle Sw...

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IEEE Swarm Intelligence Symposium, SIS

作者： Yiheng Wang Alei Liang Haibing Guan School of Software Shanghai Key Laboratory of Scalable Computing and Systems Shanghai Jiaotong University Shanghai China Department of Computer Science and Engineering Shanghai Key Laboratory of Scalable Computing and Systems Shanghai Jiaotong University Shanghai China

Exploring an unknown environment using team of autonomous mobile robots is an important task in many real-world applications. Many existing map exploration algorithms are based on frontier, which is the boundary between unexplored space and known open space. In the context of multiple robots, the main problem of frontier-based algorithm is to choose appropriate target points for the individual robots so that they can efficiently explore the different part of the common area. This paper proposed a novel distributed frontier-based map exploration algorithm using Particle Swarm Optimization model for robot coordination. In this algorithm, the robot keeps moving to the nearby frontier to reduce the size of the unknown region, and is navigated towards frontier far away based on the PSO model after exploring the local area. The exploration is completed when there are no frontier cells on the map. Our algorithm has been implemented and tested both in simulation runs and real world experiment. The result shows that our method has a good scalability and efficiency.

关键词： Legged locomotion Robot kinematics Collision avoidance Algorithm design and analysis Robot sensing systems Redundancy

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