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International Conference on information and Communication Technologies (ICICT)

作者： Mazdak Zamani Hamed Taherdoost Azizah A. Manaf Rabiah B. Ahmad Akram M. Zeki Faculty of Computer Science and Information Systems Universiti Teknologi Malaysia Kuala Lumpur Malaysia College of Science and Technology Universiti Teknologi Malaysia Kuala Lumpur Malaysia Centre of Advanced Software Engineering Universiti Teknologi Malaysia Kuala Lumpur Malaysia

Steganography is a technique used to transmit hidden information by modifying an audio signal in an imperceptible manner. The transmission must be possible in spite of subsequent imperceptible alterations (attacks) of the modified signal. We propose a novel approach of substitution technique of audio steganography. Using genetic algorithm, message bits are embedded into multiple, vague and higher LSB layers, resulting in increased robustness. The robustness specially would be increased against those intentional attacks which try to reveal the hidden message and also some unintentional attacks like noise addition as well.

关键词： Steganography Genetic algorithms Video sequences Humans Watermarking Noise robustness Internet DVD Computer science information systems

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Managing Malware in Higher Learning Institutions

Managing Malware in Higher Learning Institutions

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International Conference on Computer and Electrical engineering, ICCEE

作者： Zuraini Ismail Christine Simfukwe Department of Science College of Science & Technology International Campus Universiti Teknologi Malaysia Kuala Lumpur Malaysia Centre of Advanced Software Engineering Faculty of Computer Science and Information Systems International Campus Universiti Teknologi Malaysia Kuala Lumpur Malaysia

"Malware" is an umbrella term that describes a variety of Internet-borne threats, including viruses, spyware,Trojan horses, spam, bots and more. This sophisticated and evolving security threat puts all businesses at risk, no matter how big or small. Malware creates unique challenges to higher learning institutions (HLI) in protecting their information assets. This is largely due to the fact that HLI information technology (IT) departments must balance between enabling a highly collaborative, non-restrictive environment and ensuring the confidentiality, integrity, and availability of data and computing resources. HLIs can proactively defend the network to reduce the risks associated with this threat by assessing the vulnerabilities and threats present in their networks and implementing appropriate multilayer security. A multilayer approach involves applying countermeasures at every layer of the computer network, from the perimeter routers and firewalls to users' personal computers in order to increase network security. The goal of this study is to propose a framework for network security protection against malware to increase the level of protection using non technical countermeasures.

关键词： Protection Nonhomogeneous media Internet Computer viruses Horses information security information technology Collaboration Availability Data security

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Designing a Credit Approval System Using Web Services, BPEL, and AJAX

Designing a Credit Approval System Using Web Services, BPEL,...

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IEEE International Conference on e-Business engineering (ICEBE)

作者： Vincent C.T. Chan Dickson K.W. Chiu Michelle Watson Patrick C.K. Hung Haiyang Hu Hua Hu Yi Zhuang Department of Computer Science & Engineering Hong Kong University of Science and Technology Hong Kong China Faculty of Business and IT University of Ontario Institute of Technology (UOIT) Canada College of Computer Science and Information Engineering Zhejiang Gongshang University China State Key Laboratory for Novel Software Technology Nanjing University China College of Computer Science Hangzhou Dianzi University China

In the business world, financial institutions, like banks and investment firms, heavily rely on technology to manipulate daily operations and support business. Many more business processes have now become automated and require procedures to be approved. For example, when providing business services liked personal / corporate loans, mortgage, or Letter of Credit (LC), a customer is required to submit information within their applications; whereas, the service provider has to perform complicated approval procedures, involving different departments or even external parties. In this paper, we discuss how a credit approval system (CAS) handles the workflow of such business processes. The system is extensible to contemporary technologies including business process execution language (BPEL), asynchronous JavaScript and XML (AJAX), and Java server face (JSF) in order to coordinate related parties through the Internet as well as to facilitate the operations and communications with different levels of staff in the Intranet. Our experiences and design characteristics will be further implemented into a system designed for a global financial firm.

关键词： Web services Content addressable storage Java Computer science Educational institutions Loans and mortgages XML Financial management Design engineering Laboratories

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Assessing the needs of CSCL tool and its impacts in Malaysian context

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WSEAS Transactions on Computer Research 2008年第5期3卷 300-310页

作者： Kasirun, Z.M. Salim, S.S. Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

Reviewing on computer-supported collaborative learning (CSCL) tools revealed that CSCL is important to support collaborative learning (CL) strategy in school. Existing CSCL applications are mostly research-based and are not available for use. Through a survey on the needs for CSCL in Malaysia, it is confirmed that CSCL application is needed but the available one could not support CL activities. This paper discusses CSCL study in Malaysia, especially the relationship between user involvement and type of CSCL application needed. In particular, the CSCL application that could associate existing knowledge among students to build new knowledge for their better understanding and problem solving skills. We examine this need and assess its impact by developing Collaborative Environment for Teaching and Learning System (CETLs).

关键词： Learning systems

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Issues in the implementation of software process improvement project in Malaysia

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WSEAS Transactions on information Science and Applications 2008年第6期5卷 1031-1043页

作者： Md Nasir, Mohd Hairul Nizam Ahmad, Rodina Hassan, Noor Hafizah Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

software Process Improvement (SPI) became known in the last twenty years. SPI is crucial to augment software process capabilities in software companies to face present demanding and global market. There were numerous published studies in United States, Europe, Australia and North America. Yet, there was still being short of research and published studies on SPI in Malaysia. This research attempts to fill this gap by focusing to analyze the resistance factors that de-motivate the implementation of SPI project specifically software companies operated in Malaysia. This research has been conducted during March 2008 until August 2008 and it used a survey instrument to gather data from 39 companies operated across Malaysia with the total of 251 professionals responded. The findings showed that organizational factors specifically human factors are playing an important role in determining the success of the SPI project. Participation and commitments from all individuals across the organization are also vital and imperative to ensure success for SPI initiative.

关键词： International trade

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Distributed database for reusable-learning object-based system

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information technology Journal 2008年第5期7卷 754-761页

作者： Hamid, S.H.A. Nasir, M.H.N.M. Hassan, N.H. Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

In this study, discusses enhancing the e-learning system by employing a distributed database that apply reusable learning object as one of the technologies that is applied to e-learning development. An e-learning system named e-notes is able to assist students and facilitators to interact with each other. Learning objects are used to conceptualize the learning process and offer accessibility, interoperability, adaptability, durability, reusability and granularity for the e-learning environment. This study also shows the test result of a comparison for learning objects' performance applied to a centralized database and a distributed database and the performance in reusability of learning objects. The e-notes architecture, based on a client-side application, is designed with the intention to help the student in a computer tutorial system which offers reusability attributes. © 2008 Asian Network for Scientific information.

关键词： Reusability

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Issues on the application of component-oriented software development: Formulation of research areas

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information technology Journal 2008年第8期7卷 1149-1155页

作者： Aris, H. Salim, S.S. Department of Software Engineering College of Information Technology Universiti Tenaga Nasional Km. 7 Jalan Kajang-Puchong 43009 Kajang Selangor Malaysia Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

This research presents the outcomes of a study performed with the aim of identifying the issues affecting the application of Component-Oriented software Development (COSD) amongst the software developers, which consist of those who use components in their software development and those who do not. The information required in the form of problems faced in using components, factors affecting the use of components and reasons for not using components in software development was obtained through questionnaires distribution amongst the software developers in Malaysia. The information gathered was used to determine the issues that affect the application of COSD. These issues are presented in a cause-effect diagram and categorised into technical, managerial and ethical. It serves as the basis for the derivation of a list of possible research areas that can be explored by the researchers in this field. Each research area is then linked to the issues that it solves. This is to ensure that the research area of choice will optimally contribute to the development of COSD in order to promote COSD application amongst the software developers. © 2008 Asian Network for Scientific information.

关键词： Surveys

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Web search engine working as a bee hive

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Web Intelligence and Agent Systems 2008年第4期6卷 441-452页

作者： Navrat, Pavol Kovacik, Martin Ezzeddine, Anna Bou Rozinajova, Viera Slovak University of Technology Faculty of Informatics and Information Technologies Institute of Informatics and Software Engineering Ilkovicova 3 SK-842 16 Bratislava Slovakia

A new approach to web search that is based on a bee hive metaphor is presented. We proposed a modified model of a bee hive. Our model comprises of a dance floor, an auditorium, and a dispatch room. We have shown that the model is a true model of a bee hive in the sense it simulates several kinds of its typical behaviour. However, more importantly it is a simple model that describes some processes taking place in web search. Our model incorporates also several kinds of uncertainty. Experiments show that uncertainty increases robustness of the search and makes it actually more efficient. © 2008 - IOS Press and the authors. All rights reserved.

关键词： Recommender systems

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Adaptive Parallel Model Combination for Reduced Environmental Mismatch in Noisy Speech Recognition

Adaptive Parallel Model Combination for Reduced Environmenta...

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International Conference on Electronic Design

作者： Tan, S. S. Ahmad, Abdul Manan Software Engineering Department Faculty of Computer Science and Information System University of Technology Malaysia Malaysia Speech Laboratory Faculty of Computer Science and Information System University of Technology Malaysia Malaysia

ISBN: (纸本)9781424423149

Due to environmental mismatch, speech recognition systems often exhibit drastic performance degradation in noisy conditions. This paper presents a model-based technique termed Adaptive Parallel Model Combination (APMC) which compensates the initial acoustic models to reduce the discrepancy. APMC used the well-known PMC technique to composite a set of corrupted speech models, while fine tuning the mean parameter of the models using a transformation-based adaptation technique called Maximum Likelihood Spectral Transformation (MLST). Evaluated on a context-independent phone recognition task, APMC was found to be superior to both PMC and MLST, especially in non-stationary noisy conditions. On average, APMC has achieved 48.81% improvement over the initial models, whereas PMC and MLST have improved the accuracy by 34.12% and 35.23% respectively.

关键词： Maximum likelihood

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Assessing object-oriented programming skills in the core education of computer science and information technology: Introducing new possible approach

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WSEAS Transactions on Computers 2008年第9期7卷 1427-1436页

作者： Khamis, Norazlina Idris, Sufian Ahmad, Rodina Idris, Norisma Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia Department of Computer Science Faculty of Technology and Information Science Universiti Kebangsaan Malaysia 43600 Bangi Selangor Malaysia Department of Artificial Intelligence Faculty of Computer Science and Information Technology University of Malaya 50603 Kuala Lumpur Malaysia

Deciding on how to evaluate each students programming skills is one of the largest challenges facing educators who teach object-oriented courses. Traditional assessment of programming education is with Grade. Quite often students get good grades in programming but still facing great challenges or have difficulties to take on real programming jobs. This research focus on how we addressed this challenge in object oriented programming course by proposing a new assessment method to assess students' object-oriented programming skills. The process begins by identifying generic object-oriented skills that students should acquired. In this paper we discuss the issues on object-oriented programming assessment and our proposed solution for a new assessment model. This followed by an approach taken in the process of identifying the object-oriented skills using Delphi technique. Delphi technique is a structured multi-step process that uses a group of experts to achieve a consensus opinion. We present the methodology of three Delphi processes to identify object-oriented programming skills. The identified skills will be used to guide both the coverage of student learning assessments and can be used by instructors to identify what topics merit emphasis.

关键词： Object oriented programming

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