Digital Commons Network^™

A Case For Systems Thinking And System Dynamics, Craig William Caulfield, Stanislaw P. Maj

Research outputs pre 2011

Systems thinking is a way of thinking that focuses on the relationships between the parts forming a purposeful whole. System dynamics is concerned with building computer models of complex problem situations and then experimenting with and studying the behaviour of these models over time. This paper is a review of systems thinking that considers its unique history and influences, paradigms and methodologies, and presents a case for the system dynamics methodology as the best tool for the most diverse range of problem situations

B-Nodes: A New Scalable High Level Abstraction Model, Stanislaw P. Maj, Craig William Caulfield

Research outputs pre 2011

This paper proposes a new modeling technique called B-Nodes. B-Nodes represent a new, high-level abstraction that allows technical detail to be controlled using top-down recursive decomposition. This abstraction. is independent of architectural detail and can therefore accommodate rapid changes in technology. The use of recursive decomposition allows B-Nodes to be used not only for entire e-commerce system but also sub-modules within this system. The use of fundamental units allows the performance of heterogeneous technologies to be compared and other units to be derived. Results to date indicate no comparable model exists. Should further work validate this technique the authors recommend …

Clustering Of Web Users Using Session-Based Similarity Measures, Jitian Xiao, Yanchun Zhang

Research outputs pre 2011

One important research topic in web usage mining is the clustering of web users based on their common properties. Informative knowledge obtained from web user clusters were used for many applications, such as the prefetching of pages between web clients and proxies. This paper presents an approach for measuring similarity of interests among web users from their past access behaviors. The similarity measures are based on the user sessions extracted from the user's access logs. A multi-level scheme for clustering a large number of web users is proposed, as an extension to the method proposed in our previous work (2001). …

Educating Professional Software Engineers: Pathways And Progress In The Australian Experience, Rick Duley, David Veal, Stanislaw P. Maj

Research outputs pre 2011

Australia has seized the international initiative in the recognition of software engineers as professionals. Of the 37 universities in Australia offering undergraduate courses in computing, eleven offer courses in software engineering which are accredited by the Institute of Engineers, Australia (IEAust) and which may lead the graduate to membership of the Institute. In this way, the Institute has plausible claim to being the first national professional engineering body in the world to have accredited four-year undergraduate software engineering degrees as professional qualifications. The paper traces the development of the relationship between the Institute of Engineers and the computing industry and …

Inference Of Regular Languages Using Model Simplicity, Philip Hingston

Research outputs pre 2011

We describe an approach that is related to a number of existing algorithms for the inference of a regular language from a set of positive (and optionally also negative) examples. Variations on this approach provide a family of algorithms that attempt to minimise the complexity of a description of the example data in terms of a finite state automaton model. Experiments using a standard set of small problems show that this approach produces satisfactory results when positive examples only are given, and can be helpful when only a limited number of negative examples is available. The results also suggest that …

E-Learning: Introduction To Personal Computers, Ahmad Anwar

Student Works (2000-2009)

WXES3182 is the final year project which involves doing a thesis. The purpose of doing this thesis is to apply the techniques learned during classes. The Final result of the thesis is to produce complete software. To actually produce the software, a development process will have to be followed through. Here application of the development phases are put to use such as analysis, design and implementation. In the first part of the thesis WXES3182, development in started and carried through up until design phase. WXES3182 will continue the development process until the completed product is produces. Software developmet phases such …

Lecture On-Line/On-Demand, Siew Ping Foo

Student Works (2000-2009)

The on-line/on-demand lecture broadcasting is an ideal approach to meet the demand of effective and efficient communication for the fast growing web and multimedia technology. Thus, this project, the development of Lecture On-Line/On-Demand (LOL/LOD) broadcasting system provides the common functional components required for broadcasting both real time and not real time lectures. This will have resolved some existing education delivery bottlenecks such as time inconvenience, location dependence, space and tools limitation in the existing systems.Furthermore, there are viewer and administrator modules proposed for the LOL/LOD system. The viewer section allows the user to view, sort, search on-line or on-demand lectures …

Buku Masakan Multimedia, Abdul Jalil Suhailla

Student Works (2000-2009)

Projek Latihan Ilmiah adalah kursus wajib bagi pelajar tahun 3 Fakulti Sains Komputer dan Teknologi Maklumat, Universiti Malaya Latihan Ilmiah II adalah sambungan dari kursus Latihan Ilmiah ini yang ditulis pada semester satu sesi 2000/2001. Latihan Ilmiah II merangkumi projek aplikasi oleh pelajar kepada penyelia dan moderator. Tajuk Latihan Ilmiah II saya ialah Buku Masakan Multimedia. Saya menggunakan perisian Macromedia Authorware 5.1 bagi proses pengimplementasian projek ini. Selain itu, saya juga telah menggunakan perisisan Macromedia Flash 4.0 bagi menambah grafik animasi pada buku masakan ini. Saya menggunakan model air terjun untuk menyiapkan projek ini. Fasa pertama dalam model ini ialah …

Sistem Cerdas Pembelajaran Pembezaan Fungsi Matematik (Pfits), Sulaiman Zainab

Student Works (2000-2009)

Pembelajaran melalui komputer menjadi semakin popular dan pelbagai kajian dilakukan untuk menghasilkan sistem pembelajaran yang lebih baik dan efektif untuk menarik minat para pelajar dan meningkatkan fahaman dan kebolehan pelajar. Projek ini secara khususnya memberi penumpuan terhadap pembangunan Sistem Cerdas Pembelajaran (Intelligent Tutoring System - ITS) bagi Pembezaan Fungsi (PFITS). Pembezaan merupakan satu topik kalkulus yang melibatkan fahaman beberapa langkah penyelesaian dengan menggunakan petua-petua matematik seperti petua tambah dan petua rantai. Ia berbeza berbanding algebra yang lebih melibatkan kepada penggunaan rumus dan aplikasi rumus yang tidak melibatkan banyak langkah penyelesaian. PFITS ini juga dapat membantu pengajar untuk pembelajaan yang lebih …

Designing An Intelligent System For Genetic Biology Learning, Seenivasagam S.Gangatharan

Student Works (2000-2009)

With the changing education scenario, an issue which has come strongly on how to create intelligent tutoring system to educate learners in a more intelligent way. So a need has emerged for the development of an intelligent tutoring system. This part or thesis describes the design of a collection of intelligent systems under the name GENETIC BIOLOGY for basic genetic biology tutoring. GENETIC BIOLOGY consist of three intelligent systems which arc designed for cell, DNA and gene learning. GENETIC BIOLOGY systems employ natural language processing and various techniques normally used in the construction of intelligent systems. Production rules and frames …

Educational Maze Game, Dziaudin Evy Nadzelina

Student Works (2000-2009)

Tesis tahun akhir ini adalah alah satu daripada matapelajaran yang wajib diambil oleh penuntut tahun akhir pengajian Sains Komputer Dan Teknologi Maklumat. Ia membawa nilai sebanyak 9 kredit di mana nilai mata dikira dalarn pengijazahan. Tajuk tesis yang telah dipilih ialah Educational Maze Game iaitu satu permainan di dalam internet. Educational Maze Game ini adalah merupakan satu permainan yang mencari jalan keluar. Ia diselitkan dengan soalan-soalan khas untuk pelajar diperingkat sekolah menengah. Pengguna boleh memasuki ruang maze ini dimana ia merupakan satu dunia 3D dan berinteraksi di dalamnya. Objektif tesis ini ialah untuk memahirkan diri dalam penggunaan perkakasan 3D dan …

Adaptive Web Sites By Web Usage Mining, Mario Rodney Creado

Masters Theses

The World Wide Web has become a very popular marketing medium during the recent years. Many businesses use it extensively to publicize their products. Initially it began with static web sites. However as web sites got bigger and better, their maintenance became problematic. Just as business strategies change, so also will the orgainization of their web sites change. Hence the need of the hour is an adaptive web site (i.e. a web site that can organize itself based upon its usage). For this purpose, web usage mining techniques are used. The characteristics of the user's activity on the web site …

Sistem Maklumat Interaktif Minda Manusia, Mohd Salleh Feliawati

Student Works (2000-2009)

Di samping memenuhi syarat-syarat kursus, membuat projek untuk latihan ilmiah tahap akhir mempunyai kelebihan yang tersendiri samada kepada universiti, fakulti atau kepada pelajar itu sendiri. Dengan membuat projek sistem maklumat interaktif minda manusia ini, saya mendapat pendedahan sebenar tentang cara dan praktikal yang diperlukan dalam menjayakan projek ini. Jika sebelum ini pelajar disogok sepenuhnya dengan nota dan kuliah untuk menambah pengetahuan kini para pelajar mula belajar berdikari dan mempunyai inisiatif sendiri untuk mempelajari sesuatu yang baru agar tidak ketinggalan dan berjaya melakukan setiap arahan tugas yang diterima. Para pelajar sudah tidak malu untuk bertanya dan berkongsi pendapat dengan mereka yang …

Multimedia Package Of Chinese Mid Autumn Festival, Judy Yeap

Student Works (2000-2009)

The Chinese mid autumn festival also called the moon festival, is not known very much outside the community. Thus,the objective of Multimedia Package Of Chinese Mid Autumn Festival is to introduce the festival more widely through a multimedia package. This package will contain the poems, songs, the food and other information of the festival. To improve the user's understanding of the after using the package, there is a quiz section to test the user. The multimedia feature combining text, graphics, video and audio together were included to increase the user's interest. A review of few existing web sites on Internet …

A Web Based Intelligent Tutoring System For Arithmetic, Kuppusamy Tharanitharan

Student Works (2000-2009)

The 21st century among others has depicted a wide array of events and technologies in its quest to revolutionize all aspects of life in a multitude dimension of fields. The field of learning which is among the oldest field of human achievement is one of the most important fields that constantly need new techniques and methods to help students to achieve better. The days of a student sitting through books and other paper works is slowly disappearing to give way to the new medium such as the computer and internet. Slowly, but surely. Today, many educational packages are on the …

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 …

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.

Buckets: Smart Objects For Digital Libraries, Michael L. Nelson

Computer Science Faculty Publications

Current discussion of digital libraries (DLs) is often dominated by the merits of the respective storage, search and retrieval functionality of archives, repositories, search engines, search interfaces and database systems. While these technologies are necessary for information management, the information content is more important than the systems used for its storage and retrieval. Digital information should have the same long-term survivability prospects as traditional hardcopy information and should be protected to the extent possible from evolving search engine technologies and vendor vagaries in database management systems. Information content and information retrieval systems should progress on independent paths and make limited …

E-Spatial Technology For Spatial Analysis And Decision Making In Web-Based Land Information Management Systems, James Carswell

Articles

In this paper we describe e-SpatialTM technology, comprising an innovative software solution for deploying integrated web-based spatial applications within Oracle 9i Database environments. The two main components of the solution are the iSMARTTM database development technology and the i-SpatialTM Information Server (iSIS). This technology allows Oracle users to build and deploy both spatially enabled and standard Internet applications without requiring any application-specific GIS source code. It can be deployed on any Oracle supported hardware platform and on any device running a Java Virtual Machine, thus providing full support for wireless, PDAs and other mobile devices. In particular, we describe a …

Perceptual Cues And Subjective Organization In A Virtual Information Workspace, Todd M. Eischeid

Psychology Theses & Dissertations

The key to effectively using the immense body of data on the Internet is an efficient method of organizing relevant information. Researchers and designers are beginning to promote the advantages of three-dimensional (3D) models of information storage and retrieval; however, the potential benefits of perceptual depth cues have not been systematically studied.

The present study used a computer task to examine the effectiveness of three types of virtual desktops. A two-dimensional (2D) virtual desktop display, lacking in the cues that give the illusion of depth, was compared to two different 3D virtual desktops, both of which used perceptual cues to …

Smart Objects And Open Archives, Michael L. Nelson, Kurt Maly

Computer Science Faculty Publications

Within the context of digital libraries (DLs), we are making information objects "first-class citizens". We decouple information objects from the systems used for their storage and retrieval, allowing the technology for both DLs and information content to progress independently. We believe dismantling the stovepipe of "DL-archive-content" is the first step in building richer DL experiences for users and insuring the long-term survivability of digital information. To demonstrate this partitioning between DLs, archives and information content, we introduce "buckets": aggregative, intelligent, object-oriented constructs for publishing in digital libraries. Buckets exist within the "Smart Object, Dumb Archive" (SODA) DL model, which promotes …

The Design Of 3d Cyberspace As User Interface: Advantages And Limitations, Maria Borisovna Quick

Theses : Honours

Virtual reality propagandists, technologists and the Internet community have long debated the issue of the usability of online three-dimensional (3D) environments. A lot of work was published about the benefits of 3D spaces for human-computer interaction and information visualisation due to their realism (Anders, Kalawsky, Crossley, Davies, McGrath, Rejman-Greene, 1998, Hamit, 1993, Heim, 1992, Aukstakalnis, Blatner, Roth, 1992). This topic also receives continuous industry support including standardisation of Virtual Reality Modeling Language ( VRML, VRML Consortium, 1997) and the more recent Macromedia & Intel alliance "to bring web 3D to the mainstream" (200 1, Intel Corporation). The actual implementation …

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 …

Knowledge Discovery As An Aid To Organizational Creativity, Keng Siau

Research Collection School Of Computing and Information Systems

Computers can play an important role in the creative process. With the abundance of data and increasing speed of computers, creativity can now be stimulated and enhanced with knowledge mined from available data. The process is known as knowledge discovery or data mining. Knowledge discovery is the process of discovering interesting associations among data in the database. Users in the creativity process can feed on the discovered associations to generate creative solutions. The objective of this paper is to present knowledge discovery as an aid to creativity. The paper first presents the concept of knowledge discovery and then discusses the …

An Efficient And Practical Scheme For Privacy Protection In E-Commerce Of Digital Goods, Feng Bao, Robert H. Deng, Peirong Feng

Research Collection School Of Computing and Information Systems

It is commonly acknowledged that customers’ privacy in electronic commerce should be well protected. The solutions may come not only from the ethics education and legislation, but also from cryptographic technologies. In this paper we propose and analyze a privacy protection scheme for e-commerce of digital goods. The scheme takes cryptography as its technical means to realize privacy protection for online customers. It is efficient in both computational cost and communication cost. It is very practical for real e-commerce systems compared with previous solutions. The cryptographic technique presented in this paper is rather simple. But the scheme has great application …

Control Challenges In Multi-Level Adaptive Video Streaming, Dylan Mcnamee, Charles Krasic, Kang Li, Ashvin Goel, Erik Walthinsen, David Steere, Jonathan Walpole

Computer Science Faculty Publications and Presentations

Streaming video is one of the fastest-growing applications of the Internet. The Internet’s diversity and dynamism demands that video streams adapt to ensure maximum quality at all times. This paper describes the control challenges we have encountered in the Quasar project’s “multi-level” adaptive streaming video player. We first describe the framework and environment of the player. This framework uses software feedback to control resource allocation as well as the quality of media delivery. We present the control challenges raised by our framework, which include horizontal and vertical feedback composition, difficult to model systems, and unpredictable, non-linear actuators. We describe some …

A Survey Of Context-Aware Mobile Computing Research, Guanling Chen, David Kotz

Computer Science Technical Reports

Context-aware computing is a mobile computing paradigm in which applications can discover and take advantage of contextual information (such as user location, time of day, nearby people and devices, and user activity). Since it was proposed about a decade ago, many researchers have studied this topic and built several context-aware applications to demonstrate the usefulness of this new technology. Context-aware applications (or the system infrastructure to support them), however, have never been widely available to everyday users. In this survey of research on context-aware systems and applications, we looked in depth at the types of context used and models of …

Extensible Mpeg-4 Textual Format (Xmt), Michelle Kim, Steve Wood, Lai-Tee Cheok

Research Collection School Of Computing and Information Systems

This paper describes the Extensible MPEG-4 Textual format (XMT), a framework for representing MPEG-4 scene description using a textual syntax. The XMT allows the content authors to exchange their content with other authors, tools or service providers, and facilitates interoperability with both the X3D, developed by the Web3D consortium, and the Synchronized Multimedia Integration Language (SM1L) from the W3C consortium.

Semi-Regular Mesh Extraction From Volumes, Z. J. Wood, M. Desbrun, P. Schroder, D. Breen

Computer Science and Software Engineering

We present a novel method to extract iso-surfaces from distance volumes. It generates high quality semi-regular multiresolution meshes of arbitrary topology. Our technique proceeds in two stages. First, a very coarse mesh with guaranteed topology is extracted. Subsequently an iterative multi-scale force-based solver refines the initial mesh into a semi-regular mesh with geometrically adaptive sampling rate and good aspect ratio triangles. The coarse mesh extraction is performed using a new approach we call surface wavefront propagation. A set of discrete iso-distance ribbons are rapidly built and connected while respecting the topology of the iso-surface implied by the data. Subsequent multi-scale …