Digital Commons Network^™

Laman Web E-Dagang Sistem Tempahan Dalam Talian (Stdt), Wan Abdul Majid Wan Amirah

Student Works (2000-2009)

Sistem Tempahan Dalam Talian (STDT) ialah sebuah sistem berasaskan web yang dibangunkan dengan objektif untuk melaksaakan keperluan pembelian produk dalam talian melalui internet. Objektif sistem adalah untuk membolehkan pengguna yang melayari internet membuat tempahan produk pada satu masa supaya ianya ringkas dan mudah serta tidak perlu menggunakan banyak boring. Aplikasi-aplikasi yang dapat dilakukan oleh sistem ini ialah menerima tempahan daripada pengguna, menghapuskan atau menambah produk dan memaparkan jumlah harga kesemua tempahan yang dibuat. Sistem yang akan dibangunkan ini menggunakan Active Server Pages, Visual InterDev 6.0, Internet Explorer 4.0, Personal Web Server dan Microsoft Access 2000 pada platform Windows 98. Dibangunkan …

Smart Learning Environment System: E-Commerce Module, Yuen Meng Saw @ Chua Yuen Meng

Student Works (2000-2009)

Smart learning environment system is a system that allows the maintaining and distribution of course materials via the web, administering and grading test for web-based courses, facilitates multilavel threaded discussions among student to student or student to lecture, manages the system and databases for the web-based courses and streamlines the ordering and purchasing of learning materials for web-based courses. This proposal is fully concentrated on building a system for the ordering and purchasing of learning materials for web-based courses. The main objective and significant of the system is to be easily integrated in the smart learning environment system. The learning …

Financial Information System (Fis), Chien Wee Kuan

Student Works (2000-2009)

Financial Information System for the Faculty of Computer Science and Information Technology (FCSIT-FIS) is a clien/server system introduced as a sub-system in the e-Faculty project. Its main purpose is to create a paperless, web-based system by providing on-line functions that allow users to access to FCSIT financial information. The main functions of FCSIT-FIS are: on-line spending request, financial information retrieval and account maintenance. FCSIT -FIS will be developing using ASP technology, VBScript, JavaScript and HTML language. Microsoft SQL Server will be use as the database server of the system.

Online Counselling Assistant (Oca Ver 1.0), Mohd Zaini Hana Salwani

Student Works (2000-2009)

OCA ver 1.0 adalah sistem pengurusdan pangkalan data berasaskan web yang dibangunkan untuk membantu komunikasi di FSKTM, Universiti Malaya. Ia direka untuk menjanakan interaksi antara pelajar, pensyarah dan tutor melalui web. OCA mempunyai 4 bahagian iaitu Bahagian Pensyarah, Bahagian Pelajar, Bahagian Tutor dan Bahagian Am. OCA yang berdaftar menghanar tugasan jika tutor atau lecture telah ,emdaftarkan matapelajaran atau tugasan tersebut memuat turun (download) nota jika nota telah dimuat naik (upload) oleh pensyarah dan melihat markah tugasan jika dibenarkan oleh tutor atau pensyarah. OCA membenarkan pensyarah mengadakan pengurusan mata pelajaran dan tugasan supaya dengan ini nota dapat dimuat naik oleh pensyarah …

Agent For Exam Processing, Foh Peng Chong

Student Works (2000-2009)

Exam Processing System is a necessity to every Institution of higher learning and universities, due to the amount of students taking exams every year, the blooming of information technology era and achieving the paperless environment goal. It has been implemented to handle student's records or more widely recognized as the Student Information System (SIS). However, based on the current system, it can only keep records and do very little with it, which requires the administrators more time to generate the summary manually. Agent for Exam Processing is proposed to overcome these shortcomings. The Agent for Exam Processing is an intelligent …

Hadiah Sastera Melayu Berasas Web, Shamsuddin Mohamed Zakie

Student Works (2000-2009)

Projek Hadiah Sastera Melayu berasas web ini berkisar tentang sumber kesusasteraan Melayu. Projek ini amat bermatlamatkan untuk memartabatkan dunia kesusasteraan Melayu supaya dikenali dan memotivasikan para karyawan di Malaysia Supaya terus bergiat dalam bidang ini. Bermotifkan dengan gabungan 2 bidang berbeza iaitu sastera dan teknologi komputer diharap dapat memberi kesan kepada pengguna dan pembangunan sistem agar kedua-dua bidang dapat bergabung untuk kepentingan masyarakat di Malaysia. Teknologi komputer terus berkembang mengikut peredaran zaman. Peranannya yang meluas banyak memberi manfaat kepada berbagai bidang termasuklah bidang kesusasteraan. Tugasan yang dipikul adalah untuk mewujudkan satu sistem pengkalan data didalam persekitaran Internet dan diberi nama …

Online Whiteboard, Bing Suang Chong

Student Works (2000-2009)

The Network Integrated Whiteboard System is a audio integrated, graphics and network related application. This application creates a new pace on real-time presentation integrated with voice conferencing through networks, which are suitable for lecture presentation and Computer Based Education (CBE). This huge system will divide into three subsystems, or modules, and our team, which are constructed with three members, assign each subsystem to every member. The three subsystem mentioned are the whiteboard module, voice communication module and the server module. Mr. Wong Chan Weng will in charge in the voice communication module while Mr. Lee Chee Ching will cover the …

A Generator Of Random Instances Of Binary Finite Constraint Satisfaction Problems With Controllable Levels Of Interchangeability, Hui Zou, Amy Beckwith, Berthe Y. Choueiry

School of Computing: Technical Reports

In order to test the performance of algorithms for solving Constraint Satisfaction Problems (CSPs), we must establish a large collection of CSP instances that meet a given set of specifications, such as the number of variables, domain size, constraint density, tightness, etc. The goal of this report is to describe a generator of instances that have a specified degree of interchangeability. An example of such a generator is described in (Freuder and Sabin 1997), which generates non-reflexive constraints and does not allow us to control concurrently the degree of interchangeability and tightness. We have developed a technique and written a …

Infrastructure Support For Controlled Experimentation With Software Testing And Regression Testing Techniques, Hyunsook Do, Sebastian Elbaum, Gregg Rothermel

School of Computing: Technical Reports

Where the creation, understanding, and assessment of software testing and regression testing techniques are concerned, controlled experimentation is an indispensable research methodology. Obtaining the infrastructure necessary to support such experimentation, however, is difficult and expensive. As a result, progress in experimentation with testing techniques has been slow, and empirical data on the costs and effectiveness of techniques remains relatively scarce. To help address this problem, we have been designing and constructing infrastructure to support controlled experimentation with testing and regression testing techniques. This paper reports on the challenges faced by researchers experimenting with testing techniques, including those that inform the …

Hierarchy-Based Access Control In Distributed Environments, Jean-Camille Birget, Xukai Zou, Guevara Noubir, Byrav Ramamurthy

School of Computing: Conference and Workshop Papers

Access control is a fundamental concern in any system that manages resources, e.g., operating systems, file systems, databases and communications systems. The problem we address is how to specify, enforce, and implement access control in distributed environments. This problem occurs in many applications such as management of distributed project resources, e-newspaper and payTV subscription services.

Starting from an access relation between users and resources, we derive a user hierarchy, a resource hierarchy, and a unified hierarchy. The unified hierarchy is then used to specify the access relation in a way that is compact and that allows efficient queries. It is …

Hierarchical Ring Network Configuration And Performance Modeling, V. Carl Hamacher, Hong Jiang

School of Computing: Faculty Publications

Approximate analytical queuing network models for expected message packet delay in 2-level and 3-level hierarchical ring interconnection networks (INs) are developed. A major class of traffic carried by these INs consists of cache line transfers between processor caches and remote memory modules in shared-memory multiprocessors. Such traffic consists of short, fixed-length messages; they can be conveniently transported by the slotted-ring transmission technique which is studied here. The packet delay results derived from the models are shown to be quite accurate when checked against a simulation study. As well as facilitating analysis, the analytical models can be used to determine optimal …

Optimization Of Amplifier Placements In Switch-Based Optical Networks, Ling Zong, Byrav Ramamurthy

School of Computing: Conference and Workshop Papers

Wavelength division multiplexing (WDM) offers a solution to the problem of exploiting the large bandwidth on optical links; it is the current favorite multiplexing technology for optical communication networks. Due to the high cost of an optical amplifier, it is desirable to strategically place the amplifiers throughout the network in a way that guarantees that all the signals are adequately amplified while minimizing the total number amplifiers being used. Previous studies all consider a star-based network. This paper demonstrates an original approach for solving the problem in switch-based WDM optical network assuming the traffic matrix is always the permutation of …

The Impact Of Software Evolution On Code Coverage Information, Sebastian Elbaum, David Gable, Gregg Rothermel

School of Computing: Conference and Workshop Papers

Many tools and techniques for addressing software maintenance problems rely on code coverage information. Often, this coverage information is gathered for a specific version of a software system, and then used to perform analyses on subsequent versions of that system without being recalculated. As a software system evolves, however, modifications to the software alter the software’s behavior on particular inputs, and code coverage information gathered on earlier versions of a program may not accurately reflect the coverage that would be obtained on later versions. This discrepancy may affect the success of analyses dependent on code coverage information. Despite the importance …

Combining Ordering Heuristics And Bundling Techniques For Solving Finite Constraint Satisfaction Problems, Amy Beckwith, Berthe Y. Choueiry

School of Computing: Technical Reports

We investigate techniques to enhance the performance of backtrack search procedure with forward-checking (FC-BT) for finding all solutions to a finite Constraint Satisfaction Problem (CSP). We consider ordering heuristics for variables and/or values and bundling techniques based on the computation of interchangeability. While the former methods allow us to traverse the search space more effectively, the latter allow us to reduce it size. We design and compare strategies that combine static and dynamic versions of these two approaches. We show empirically the utility of dynamic variable ordering combined with dynamic bundling in both random problems and puzzles.

Adaptive Segmentation Of Document Images, Don Sylwester, Sharad C. Seth

School of Computing: Conference and Workshop Papers

A single-parameter text-line extraction algorithm is described along with an efficient technique for estimating the optimal value for the parameter for individual images without need for ground truth. The algorithm is based on three simple tree operations, cut, glue and flip. An XY-tree representing the segmentation is incrementally transformed to reflect a change in the parameter while intrinsic measures of the cost of the transformation are used to detect when specific tree operations would cause an error if they were performed, allowing these errors to be avoided. The algorithm correctly identified 98.8% of the area of the ground truth bounding …

Herba Online, Dol Bakri Zen Akmal

Student Works (2000-2009)

Sistem Herba Online merupakan satu sistem informasi dengan pangkalan data berasaskan web yang dibangunkan untuk membantu memperkembangkan pengetahuan rakyat Malaysia amnya tentang herba di Malaysia serta kepentingannya dalam kehidupan. Objektif utama sistem dibangunkan ialah selaku pemangkin meningkatkan pengetahuan pengguna dalam topik herba dengan memudahkan cara mencapai maklumat yang mereka inginkan. Sasaran pengguna bagu sistem ini ialah individu atau organisasi yang terlibat dalam pembelajaran, kajian, penghasilan, pemprosesan atau pemasaran tumbuhan-tumbuhan herba atau produk-produk yang dihasilkannya. Bab pertama laporan ini menceritakan secara ringkas pengenalan, objektif dan skop projek. Bab kedua merupakan hasil daripada kajian literasi yang telah dilakukan berkaitan dengan topik. Secara …

Storage Free Terrain Simulation, Warren Creemers

Theses : Honours

Landscape visualisation is the process of recreating a natural environment and displaying it in an interactive graphical simulation. To do this a terrain is displayed together with accompanying plant life and other objects. Present landscape visualisation software is capable in theory of displaying very detailed and large landscapes. The software is also in theory capable of simulating environments with thousands if not millions of individually structured plants. In practice though, the simulation of such landscapes requires such a large amount of storage space that it is not achievable on personal computers. Even storing small landscapes with a moderate amount plant …

Ontologies And Electronic Commerce, Dieter Fensel, Deborah L. Mcguinness, Ellen Schulten, Wee-Keong Ng, Ee Peng Lim, Guanghao Yan

Research Collection School Of Computing and Information Systems

Ontologies are the first step toward realizing the full power of online e-commerce. Ontologies enable machine-understandable semantics of data, and building this data infrastructure will enable completely new kinds of automated services. Software agents can search for products, form buyer and seller coalitions, negotiate about products, or help automatically configure products and services according to specified user requirements. The combination of machine-processable semantics of data based on ontologies and the development of many specialized reasoning services will bring the Web to its full power. The authors discuss: taxonomies; information sources; future issues; business viewpoints; the e-marketplace; and B2B e-commerce standardisation …

Unified Modeling Language: A Complexity Analysis, Keng Siau, Q. Cao

Research Collection School Of Computing and Information Systems

Unified Modeling Language (UML) is the standard visual modeling language for Object Oriented (OO) systems development, but it has been criticized for its complexity, inconsistent semantics, and ambiguous constructs. A set of complexity indices for UML and the nine diagramming techniques in UML was compiled recently. The complexity analysis is formulated based on the number of constructs, associations, roles, and so forth, in a modeling method. We argue that this set of metrics provides an indication of the theoretical complexity of the modeling methods. On the other hand, the theoretical complexity of the modeling methods does not necessarily relate to …

Isolated Ramp Metering Feedback Control Utilizing Mixed Sensitivity For Desired Mainline Density And The Ramp Queues, Pushkin Kachroo, Kaan Ozbay, Donald E. Grove

Electrical & Computer Engineering Faculty Research

This paper presents a feedback control design for isolated ramp metering control. This feedback control design, unlike the existing isolated feedback ramp controllers, also takes into account the ramp queue length. Using a nonlinear H∞ control design methodology, we formulate the problem in the desired setting to be able to utilize the results of the methodology.

Meeting Scheduling System (Mss), Mun Ting Ng

Student Works (2000-2009)

Meeting Scheduling System (MSS) is a web-based system developed to support the organization of meetings, that is for each meeting request, a suitable meeting date can be determine based on constraints like meeting location, equipment and the number of invitees that can attend the meeting. Besides that, Meeting Scheduling System (MSS) allow users to check if the invitees are available to attend a meeting, and will inform participants on details about meetings tl1at involve them. It is to avoid the possibility of scheduling a person to attend two or more meetings at one time. Other than that, Meeting Scheduling System …

Accurate Parameter Estimation For An Articulatory Speech Synthesizer With An Improved Neural Network Mapping, Hali̇s Altun, Tankut Yalçinöz, K. Mervyn Curtis

Turkish Journal of Electrical Engineering and Computer Sciences

Neural network (NN) applications have recently been employed to extract the parameters of an articulatory speech synthesizer from a given speech signal. Results from these attempts showed that a single NN is insufficient to cover all of the possible configurations uniquely. Moreover, apart from their computational advantages, NN mapping is so far not superior to the other mapping techniques [1]. Thus there is a clear need to improve NN solution to the inverse problem. Results from our earlier experiments with an articulatory speech synthesizer have shown that the statistical characteristic of the articulatory target pattern vectors can be exploited for …

Scalar Wave Diffraction By A Perfectly Soft Infinitely Thin Circular Ring, Fati̇h Di̇kmen, Ertuğrul Karaçuha, Yury Alexanderovich Tuchkin

Turkish Journal of Electrical Engineering and Computer Sciences

A new strong mathematically rigorous and numerically effective method for solving the boundary value problem of scalar (for example acoustic) wave diffraction by a perfectly soft (Dirichlet boundary condition) infinitely thin circular ring is proposed. The method is based on the combination of the Orthogonal Polynomials Approach, and on the ideas of the methods of analytical regularization. As a result of the suggested regularization procedure, the initial boundary value problem is equivalently reduced to the infinite system of the linear algebraic equations of the second kind, i.e., to an equation of the type ( (I + H) x = b …

Modal Rules Are Co-Implications, Alexander Kurz

Engineering Faculty Articles and Research

In [13], it was shown that modal logic for coalgebras dualises—concerning definability— equational logic for algebras. This paper establishes that, similarly, modal rules dualise implications:It is shown that a class of coalgebras is definable by modal rules iff it is closed under H (images) and Σ (disjoint unions). As a corollary the expressive power of rules of infinitary modal logic on Kripke frames is characterised.

Arc - An Oai Service Provider For Digital Library Federation, Xiaoming Liu, Kurt Maly, Mohammad Zubair, Michael L. Nelson

Computer Science Faculty Publications

The usefulness of the many on-line journals and scientific digital libraries that exist today is limited by the inability to federate these resources through a unified interface. The Open Archive Initiative (OAI) is one major effort to address technical interoperability among distributed archives. The objective of OAI is to develop a framework to facilitate the discovery of content in distributed archives. In this paper, we describe our experience and lessons learned in building Arc, the first federated searching service based on the OAI protocol. Arc harvests metadata from several OAI compliant archives, normalizes them, and stores them in a search …

Performance Of Genetic Algorithms For Data Classification, Matthew E. Stine

Honors Theses

In today's world, the amount of raw data archived across multiple distinct domains is growing at an exponential rate. "Data Mining" is a continuously evolving family of processes by which individuals extract useful information from these data. Classification is one of these processes, and is the construction of varying types of descriptive models from labeled data objects, for the purpose of predicting the label of those objects with unknown labels. The construction of these modules is often adversely affected by the presence of incorrect values or outlier values within the data, a phenomenon known as noise. The original motivation of …

Corba: A Quantitative And Qualitative Comparison Of Industrial Strength, Commercial Corba Orbs For The Java Platform, Michelle Leigh Mckeller

UNF Graduate Theses and Dissertations

In distributed systems design, middleware is a key component. Middleware establishes the communication between a client and server in a multi-tiered architecture. One approach to middleware is implementing the OMG's CORBA standard, through the use of ORBs. Three of the more popular commercially available ORBs are Sun's Java 2 ORB, Borland's VisiBroker for Java, and IONA's Orbix 2000 for Java. The purpose of this graduate project was to compare the three ORBs both quantitatively and qualitatively. The project compares the ORBs quantitatively by measuring the performance of each ORB, in terms of response time. The comparison was done qualitatively by …

Working For Excellence In The E-Conomy: 2nd International We-B Conference, Sue Stoney (Ed.)

Research outputs pre 2011

Welcome to Perth, Western Australia, and to the 2nd International We-B Conference 2001 "working for excellence in the e-conomy" hosted by the We-B Centre, School of Management Information Systems at Edith Cowan University.

This is an international conference for academics and industry specialists in e-business, e-government and related fields. The conference has drawn participants from national and international organisations.

All submitted papers were subjected to an anonymous peer review process managed by the Conference Committee.

Rush Hour® And Dijkstra’S Algorithm, Mark Stamp, Brad Engel, Mcintosh Ewell, Victor Morrow

Faculty Publications, Computer Science

The game of Rush Hour® includes a 6 × 6 grid and game pieces representing cars and trucks. The object of the puzzle is to move a special car out of a gridlocked “traffic jam.” In this note we apply Dijkstra’s algorithm and a breadth-first search to solve any Rush Hour configuration.

Dynamic Bandwidth Allocation Using Neural-Fuzzy In Atm Network, Yan Sing Chua

Student Works (2000-2009)

Dynamic bandwidth allocation is becoming one of the crucial issues in the design and research in the computer network. This is due to the continuous increasing demand of intensive applications that require more bandwidth while retaining higher quality. Dynamic bandwidth allocation utilises the current network state information to optimise the bandwidth distribution. The state information can be gathered through prediction using past data and measurement on current state. Agility and flexibility of dynamic bandwidth allocation using Neural-Fuzzy has the advantage that it can adapt to the state changes of the network. ATM network carries heterogeneous traffic and this causes the …