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International Symposium on Computing, Communication, and Control（ISCCC 2009）

作者： Chuan Ho Loh Sai Peck Lee Department of Software Engineering Faculty of Computer Science and Information TechnologyUniversity of Malaya

Measuring structural design properties of an object-oriented system is a promising approach towards early quality *** object-oriented systems,cohesion is an important factor of objectoriented design quality.A few researchers refer cohesion to the degree of the relatedness of the members in a *** an object-oriented system,classes and components are key early artifacts that lay the foundation of an object-oriented system.A few cohesion metrics have been proposed to quantify the cohesiveness of classes in an object-oriented *** this paper,we attempt to quantify the amount of cohesion in classes and components via a suite of object-oriented design *** paper proposes four object-oriented design metrics to evaluate cohesion at the class and component *** metrics are augmented based on different definitions of *** metrics are normalized to produce values in the range [0..1],thus yielding more meaningful values than other cohesion metrics such as LCOM1 and *** proposed metrics attempt to evaluate whether an artifact (*** or component) represents one abstraction (good) or multiple abstractions (bad).If the artifact represents multiple abstractions,it should be split up into multiple artifacts (*** and components).

关键词： cohesion,coupling,design metrics,object-orientation

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Object-oriented design metrics as early quality indicators of faultyclasses and components

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ICIC Express Letters 2009年第3期3卷 525-530页

作者： Lee, Sai Peck Loh, Chuan Ho Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

The primary objective of object-oriented design metrics is to evaluateobject-oriented design quality characteristics such as traceability, complexity,testability, and maintainability in a quantitative way through establishingrelationships between object-oriented design quality characteristics, andobject-oriented design metrics such as depth of inheritance tree, the number ofchildren, and response for a class. In this paper, we propose a set of improvedobject-oriented design metrics to measure the design quality of object-orientedsystems at the inheritance level specializing on incremental and subtyp-inginheritance. The metrics serve as early quality indicators of object-orienteddesign faults such as faulty classes and components in object-oriented *** augmented the metrics from two existing metrics, namely Attribute InheritanceFactor and Method Inheritance Factor. The metrics specialize on measuring theoverall inheritance density of classes and components based on several qualityattributes such as maintainability and testability. The metrics are expressed asindexes, ranging from 0 (i.e. indicating favourable) to 1 (i.e. indicating notfavourable). ICIC International © 2009.

关键词： Maintainability

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Publisher identifier scheme for printed documents using neural networks

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Journal of Applied Sciences 2009年第18期9卷 3317-3325页

作者： Rasheed, W.A.J. Ali, H.A. Department of Software Engineering Faculty of Computer Science and Information Technology Isra Private University Amman 11622 Jordan

This study investigates means used to extract embedded specifications of printing layout in a document when handled as an image rather than to recognize its characters and word constituents. These specifications are manifested by the most significant attributes frequently found in page printouts like advertisements, conference proceedings and magazines. The commonly used tools for printing document are word processors, provided by different software packages along with operating systems for PCS, like MS Windows and Mackintosh. Most of the supported packages in addition to Win Word specify the significant attributes of document formats to fall into font and paragraph design. Font design includes type, size and style characteristics. Moreover, line spacing and inter-character gaps provide another important attributes of paragraph specifications. These attributes were extracted, analyzed and exploited in this study with the aim of constructing the proposed publisher identification system. A three stage software scheme is proposed that consists of paragraph layout and font layout detection algorithms based on statistical measures followed by feed forward neural network identifier. This technique is implemented as a tool for the overall analysis and investigations. Several experiments have been conducted to validate the procedure of the designed system. The system achieved 95% successful publisher identification. This identification inaccuracy can be attributed to the poor quality of printing in addition to the effect of noise. Hence, it can be considered as acceptable performance measure for detection and identification purposes once bad quality printed samples are excluded. © 2009 Asian Network for Scientific lnformation.

关键词： Image processing

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Furry stylized texel-rendering in images and videos

Furry stylized texel-rendering in images and videos

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7th International Conference on Information, Communications and Signal Processing, ICICS 2009

作者： Jiao, Shaohui Sheng, Bin Sun, Hanqiu Wu, Enhua Institute of Software Chinese Academy of Sciences Beijing China Department of Computer Science and Engineering Chinese University of Hong Kong Hong Kong Hong Kong Faculty of Science and Technology University of Macau Macau China

ISBN: (纸本)9781424446575

We present a new method for adding furry effects for cartoon characters in images and videos. We synthesize furry stylized textures based on 3D texel structure. Given an image or a video as input, realistic fur texels are generated and mapped onto the region of interest(ROI) which is obtained using the Snake method. The 3D texels are rendered using Ray Marching algorithm on GPU for fast synthesizing the furry stylized textures. Specifically, fur texels of triangular prism shape are generated in order to be possibly mapped onto the traditional triangular mesh. Gaussian function is also introduced to provide parameters for users to control the fuzz degree. For the video applications, we use SIFT(Scale Invariant Feature Transform) algorithm to extract feature points and calculate the feature matching of the ROI along with the timeline. Experimental results show that the presented method is able to synthesize the furry stylized textures in the input image and generate dynamic fur in a video for better realistic rendering. © 2009 IEEE.

关键词： Image segmentation

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Modern Project Management: A New Forecasting Model to Ensure Project Success

Modern Project Management: A New Forecasting Model to Ensure...

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International Conference on Future computer and Communication, ICFCC

作者： Iman Attarzadeh Ow Siew Hock Department of Software Engineering Faculty of Computer Science & Information Technology Kuala Lumpur Malaysia

This paper presents a new forecasting model to ensure project success. This new model is based on improvement on earned value (EV) method. This model improves earned value management system (EVMS) and forecasting time and cost for projects. These method use established consists of four variables: scheduled performance index (SPI), cost performance index (CPI), cost variance (CV), schedule variance (SV). The model has been validated by a simulation study using a progress generator a new software. This software was developed in Visual Studio 2008 - Visual Basic .NET 2008 and Microsoft Office Project 2007 and it included some basic assumptions and data were generated day by day randomly. The results show a strong relationship between response variable and above four predictors. Therefore, it can be concluded that the model could be used in a wide range of projects for EAC estimation.

关键词： Project management Predictive models Costs Performance analysis Scheduling Equations technology forecasting Terminology software engineering computer science

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Implementing case-based reasoning approach to framework documentation

Implementing case-based reasoning approach to framework docu...

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2009 WRI World Congress on computer Science and Information engineering, CSIE 2009

作者： Hajar, Mat Jani Lee, Sai Peck College of Information Technology Universiti Tenaga Nasional Km. 7 Jalan Kajang-Puchong 43009 Kajang Selangor Darul Ehsan Malaysia Department of Software Engineering Faculty of Computer Science and Information Technology University Malaya 50603 Kuala Lumpur Malaysia

ISBN: (纸本)9780769535074

Several approaches are currently used in documenting object-oriented application frameworks. Traditional documentation approaches include tutorials, reference manuals, design patterns, cookbooks, and minimalist. The main objective of a framework is to dramatically reduce the time and effort needed in developing complete applications within a family of applications domain. Proper documentation is required in order for a framework to be usable to users, especially to the new users of the framework. This paper discusses and implements the case-based reasoning (CBR) approach to documenting a framework. It is believed that the fastest way to learn is by retrieving previously recorded framework usage experiences or cases. Here, a case is a complete example of how to use a particular component or a set of components within a framework. In CBR, reasoning is based on remembering past cases. Genetic algorithm (GA) is used in implementing the CBR's "retrieve", "reuse", and "revise" steps. During the "revise" and "retain" steps of the CBR, Knuth-Morris-Pratt (KMP) pattern matching algorithm is applied. © 2008 IEEE.

关键词： Case based reasoning

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Implementation and Evaluation of Earned Value Index to Achieve an Accurate Project Time and Cost Estimation and Improve "Earned Value Management System"

Implementation and Evaluation of Earned Value Index to Achie...

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International Conference on Information Management and engineering, ICIME

作者： Iman Attarzadeh Ow Siew Hock Department of Software Engineering Faculty of Computer Science & Information Technology University of Malaya Kuala Lumpur Malaysia

ISBN: (纸本)9781424437740

This paper presents an implementation and evaluation of Earned Value (EV) method of projects to improve earned value management system (EVMS) and forecasting time and cost for projects. These method use established consists of four variables: Scheduled Performance Index (SPI), Cost Performance Index (CPI), Cost Variance (CV), Schedule Variance (SV). The model has been validated by a simulation study using a progress generator a new software. This software was developed in Visual Studio 2008 - Visual Basic .NET 2008 and Microsoft Office Project 2007 and it included some basic assumptions and data were generated day by day randomly. The results show a strong relationship between response variable and above four predictors. Therefore, it can be concluded that the model could be used in a wide range of projects for EAC estimation.

关键词： Costs Project management Performance analysis Economic forecasting Data envelopment analysis Conference management technology management engineering management Econometrics Shape measurement

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Reasoning Intra-Dependency in Commitments for Robust Scheduling 09

Reasoning Intra-Dependency in Commitments for Robust Schedul...

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International Conference on Autonomous Agents and Multiagent Systems

作者： Mingzhong Wang Kotagiri Ramamohanarao Jinjun Chen Dept. of Computer Science and Software Engineering The University of Melbourne Faculty of ICT Swinburne University of Technology

ISBN: (纸本)9781615673346

Commitment-modeled protocols enable flexible and robust interactions among agents. However, existing work has focused on features and capabilities of protocols without considering the active role of agents in them. Therefore, in this paper we propose to augment agents with the ability of reasoning about and manipulating their commitments to maximize the system utility. We adopt a bottom-up approach by first investigating the intra-dependency between each commitment's preconditions and result which leads to a novel classification of commitments as well as a formalism to express various types of complex commitment. Within this framework, we provide a set of inference rules to benefit an agent by means of commitment refactoring which enables composition and/or decomposition of its commitments to optimize runtime performance. We also discuss the pros and cons of an agent scheduling and executing its commitments in parallel. We propose a reasoning strategy and an algorithm to minimize possible loss when the commitment is broken and maximize the overall system robustness and performance. Experiments show that concurrent schedules based on the features of commitments can boost the system performance significantly.

关键词： Design Reliability Performance Commitment machines Commitment refactoring Agent interaction Robustness Scheduling

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Runtime Change Management Based on Object Oriented Petri Net

Runtime Change Management Based on Object Oriented Petri Net

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International Conference on Information Management and engineering, ICIME

作者： Bassam Atieh Rajabi Sai Peck Lee Software Engineering Department Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia

ISBN: (纸本)9781424437740

Change management is very important to reduce risks and costs and maximizes the benefits of such major changes in business and information technology. Business Process Modeling (BPM) technology continues to face challenges in coping with dynamic business environments where requirements and goals are constantly changing at the execution time. In this research, we propose a framework for change management technique based on the integration between Object Oriented (OO) diagramming technique and Petri Net (PN) modeling language to increase the representation capability for OO modeling for the dynamic changes in the runtime instances.

关键词： Runtime Object oriented modeling technology management Business Information technology Logic Unified modeling language software engineering computer science Environmental management

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Using Ethnography Techniques in Developing a Mobile Tool for Requirements Elicitation

Using Ethnography Techniques in Developing a Mobile Tool for...

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International Conference on Information Management and engineering, ICIME

作者： Sheyda Shahidi Zarinah Mohd Kasirun Department of software engineering Faculty of Computer Science and Information Technology University Malaya Kuala Lumpur Malaysia

ISBN: (纸本)9781424437740

Requirements Elicitation is the process of discovering, extracting and gathering requirements for a system through communication with the stakeholders. Very often the process is carried out by observing the workplace and analyzing their needs at the work context. Ethnography, it is an elicitation technique that supports context-aware requirements elicitation. Common tools used in requirements elicitation process are mostly desktop-based which decrease the mobility features of bringing them to workplace. Recent advances in mobile computing technologies intend that mobile devices have the potential to support elicitation activities in the workplace. The aim of this research is to develop a mobile tool to support ethnography-based techniques to help the analysts directly observe the stakeholders need and help them in better understanding the system requirements. This paper describes the ongoing research and presents the progress so far.

关键词： Mobile computing Employment Context Databases software engineering computer science Information technology Mobile communication Information analysis Personal digital assistants

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