Digital Commons Network^™

Multi-Dimensional Regression Analysis Of Time-Series Data Streams, Yixin Chen, Guozhu Dong, Jiawei Han, Benjamin W. Wah, Jianyong Wang

Kno.e.sis Publications

Real-time production systems and other dynamic environments often generate tremendous (potentially infinite) amount of stream data; the volume of data is too huge to be stored on disks or scanned multiple times. Can we perform on-line, multi-dimensional analysis and data mining of such data to alert people about dramatic changes of situations and to initiate timely, high-quality responses? This is a challenging task.

In this paper, we investigate methods for online, multi-dimensional regression analysis of time-series stream data, with the following contributions: (1) our analysis shows that only a small number of compressed regression measures instead of the complete stream …

The Algebra And Geometry Of Curve And Surface Inversion, Thomas W. Sederberg, Eng-Wee Chionh, Kent Ridge

Faculty Publications

An inversion equation takes the Cartesian coordinates of a point on a parametric curve or surface and returns the parameter value(s) of that point. A 2-D curve inversion equation has the form t = f(x,y)/g(x,y). This paper shows that practical insight into inversion can be obtained by studying the geometry of the implicit curves f(x,y) = 0 and g(x,y) = 0. For example, the relationship between the singular locus of the parametric curve and the lowest possible degree of an inversion equation can be understood in this way. Also, insight is given into what parameter value will be returned if …

Protecting The Infrastructure: 3rd Australian Information Warfare & Security Conference 2002, William Hutchinson (Ed.)

Research outputs pre 2011

The conference is hosted by the We-B Centre (working with a-business) in the School of Management Information System, the School of Computer & Information Sciences at Edith Cowan University. This year's conference is being held at the Sheraton Perth Hotel in Adelaide Terrace, Perth. Papers for this conference have been written by a wide range of academics and industry specialists. We have attracted participation from both national and international authors and organisations.

The papers cover many topics, all within the field of information warfare and its applications, now and into the future.

The papers have been grouped into six streams: …

An Analysis Of A Private-Key Cryptosystem, Wei-Wey Tan

Student Works (2000-2009)

In this dissertation, we have presented a new block cipher. The proposed block cipher is a Substitution-Permutation network cryptosystem with a block length of 128 bits and key length of 256 bits. With the increased key length and block size, the proposed block cipher has greater security over DES. A modular design approach was applied. The cipher has three major building blocks and their interaction has been carefully chosen to achieve better security and performance. Algorithmic S­-Boxes are used to provide confusion and nonlinearity in the cipher. The proposed cipher uses a highly diffusive diffusion layer, which is a combination …

A Genetic Algorithm Solution To The Shortest Path Problem In Ospf And Mpls, Wee Jing Tee Wee Jing

Student Works (2000-2009)

This project studies and explores the potential of using genetic algorithm to solve the shortest path problem in Open Shortest Path First (OSPF) and Multiprotocol Label Switching (MPLS). The most critical task for developing a genetic algorithm to the shortest path problem is to how to encode a path in a network. In this project, two genetic algorithm solutions arc developed for the above two problem domains, i.e. Previous-node-based Encoding to solve the shortest path problem in OSPF and Priority-based Encoding to solve the shortest path problem in MPLS. For each of the shortest path problem domains, the proposed solution …

A Case Tool For Code Inspection, Siti Hajar Alias

Student Works (2000-2009)

Generally, quality and productivity play important roles in every software development life cycle. However, when discussing about quality and productivity, another function that synonym to distinguish these features is software inspection. Software inspection is generally accepted as a useful technique for finding errors in both documents and codes. There are several phases in software inspection and one of it is defect detection phase. This dissertation is to review the role of defect detection phases involved in the software inspection process. Thus, for this project, it focuses on the development of a prototype CASE tool for code inspection called CodeIns. CodeIns …

Level Set Segmentation Of Mr Images For Extraction Of Femur Bone And Tissues, Christina Shanti Nayagam

Student Works (2000-2009)

This research explores a potentially useful segmentation algorithm, known as the level set method. It is suitable for images obtained from the Magnetic Resonance Imaging (MRJ) modality, despite the fact that MR images have low contrast between bone and tissue. The level set method is a numerical technique designed to track the evolution of an interface. The fast marching version of the method is implemented for two-dimensional (2-D) and three-dimensional (3-D) segmentation in this research. Femur segmentation is the main thrust of this thesis, however brain and heart images are also presented. Pre-processing steps are first performed for the 2-0 …

Issues In Implementing Ipv6 In The X-Kernel Simulator, Raja Singam Thillainathan

Student Works (2000-2009)

The new Internet Protocol Version 6(IPv6) or Internet Protocol Next Generation (TPNG) is bound to replace the existing Internet Protocol Version 4(TPv4). This new protocol is to address and resolve the limitations of the existing Internet Protocols. At the moment the new protocol is still in its infancy stage, and it is being implemented by both the research society and the private sector. The x-kernel being a research project done by University of Arizona is freely available on the Internet. This x-kemel is a networking software almost similar to the Berkeley version (BSD) and it is bundled together with a …

Internet Information Server Scanner : Scanning On Url Vulnerabilities, Yu Jin Tan

Student Works (2000-2009)

This dissertation analyzes weaknesses on web servers, focusing on Microsoft's Internet Information Server (HS). As part of the research, an HS scanner (HS-SCAN) has been implemented to probe only on URL vulnerabilities. The need for a vulnerability scanner stems from the alarming number of successful attacks on computer systems that are connected to the Internet. The security flaws threatening e-businesses and the Internet community has prompted bona fide defense measures. Internet firewalls - gateways controlling access between one network and all the others - became a must-have for any organization connecting to the Net. If the firewall is considered the …

A Vhdl Implementation Of Bist Technique In Uart Design, Mohd. Yamani Idna Idris

Student Works (2000-2009)

No abstract provided.

Modeling A Real-Time Economics Simulation With User-Coded Agents In An Object-Oriented Database, Kevin Simons

Honors Theses

A simulation tbat models the stock market with real-time stock quotes was created. Users can translate their own theories about investing into Java code, which is then used to create an intelligent agent. The agent is inserted into the simulation, which allows the agent to gather data from the model. Based on this data, the agent uses the algorithm the user wrote to buy and sell stocks. Such as model provides a means of testing investment theories before investing.

A Web Content Management And Personalization Model Using One-To-One Strategy For Higher Educational Institutions, Yee Pong Ng

Masters Theses

This research explored a Web content management and personalization model for higher educational institutions. Through a review of literature and data collected from users, it formulated a conceptual model for Web content management and personalization. The study used the Web site of School of Technology at Eastern Illinois University as a typical case from which to develop the model for higher educational institutions. Understanding the factors influencing user attitudes about the adoption of new Web technologies is extremely important. Such an understanding can help Web developers develop a theoretical framework for a Web model as well as identify its components. …

Pricing And Product Mix Optimization In Freight Transportation, Michael F. Gorman

MIS/OM/DS Faculty Publications

We propose improved pricing and market mix can improve the profitability of the freight transportation provider through the reduction of equipment repositioning costs. We hypothesize that because of complexities surrounding pricing and equipment repositioning costing, existing pricing strategies in freight transportation fail to fully consider these costs. We test this hypothesis in an applied setting in which Monte Carlo simulation captures the stochasticity of market conditions inherent in the problem. We use a heuristic to improve the nondifferentiable, discontinuous objective function.

Our results from test cases show with high confidence that current prices are not optimal, as indicated by a …

A Technique For Visualizing Software Architectures, Jon M. Inouye

CCAC Theses and Dissertations

Software architecture appeared in the early 1990s as a distinct discipline within software engineering. Models based on software architecture attempt to reduce the complexity of software by providing relatively coarse-grained structures for representing different aspects of software development. A software architecture typically consists of various components and connections arranged in a specific topology. Elements of the topology can serve as abstractions on (for example) modules, objects, protocols or interfaces. The meaning of the topology depends on viewpoint.

Software architectures' can be described using an architecture description language (ADL). The key goals of ADLs are to communicate alternate designs to the …

An Empirical Investigation Of Employee Perceptions Of Outsourcing Success Of Information Technology Operations, Lynda Roberson Louis

CCAC Theses and Dissertations

Outsourcing is defined as the contracting out of all or parts of a company's functional work. While most outsourcing initiatives attempt to open a line of communication between upper management and affected employees, little effort is made to assess and incorporate employee perceptions into the outsourcing deal. Little research exists that addresses employee perceptions of outsourcing Information Technology (IT) functions and operations and the effects such outsourcing have on the employee. This study investigated the perceptions of employees directly involved in IT outsourcing deals in an effort to relate these perceptions to factors identified in earlier studies. The following human …

Enterprise Integration Modeling Linking Enterprise Integration Architecture With Business Strategy Planning, Easton B. Rhodd

CCAC Theses and Dissertations

The goals for this study were twofold. The first goal was to identify planning variables for linking both organizational and architectural objectives for developing enterprise integration architecture. The second goal was to validate enterprise integration modeling methodology as a viable planning tool for the design, development, and maintenance of the enterprise integration architecture.

This lack of linkage at the intellectual dimension level can be characterized as having a dysfunctional effect on enterprise integration strategy formulation and infrastructure development. There is a disjoint between adoptions of appropriate information technology in relation to organizational objectives. This includes misapplication of investments in information …

The Design Of Online Learning Communities For Older Adults, Martha Marie Snyder

CCAC Theses and Dissertations

Rapid, ongoing advancements in the growth of the Internet and web-based technology coupled with the steadily increasing number of older adults in our society create a significant need for the design of safe, convenient, and accessible online learning communities for this demographic. The primary goal of this dissertation was to conduct formative research into methodologies for developing a new instructional-design theory for establishing online learning communities for older adults. The aim of this work was to apply formative research, which is a type of developmental research used to create a new design theory or improve an existing theory, to the …

Y2k Serendipity: Benefits And Spinoffs, Roy Gwen Taunton

CCAC Theses and Dissertations

The primary purpose of the researcher this study was to determine what, if any, unexpected benefits, spin-offs, and other "serendipitous" events occurred as a result of the year 2000 remediation process undertaken by businesses, industry, and other organizations. This was measured through the use of an online survey instrument comprised of a series of questions designed to measure and discover those benefits. The survey was sent to approximately 50 different businesses/organizations during the pilot stage of this study and 250 during the main stage of this study. These businesses/organizations were randomly selected from the sampling frame using random sampling techniques. …

Preface, Levent Sevgi̇

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

Scalar Wave Diffraction By Perfectly Soft Thin Circular Cylinder Of Finite Length; Analytical Regularization Method, Eylem Özkan, Fati̇h Di̇kmen, Yury Alexanderovich Tuchkin

Turkish Journal of Electrical Engineering and Computer Sciences

A new mathematically rigorous and numerically effective method for solving the boundary value problem of scalar wave diffraction by an infinitely thin circular cylindrical screen of finite length 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 in the space \ell _{2} of square …

Perlaksanaan Satu Alatan Pembaca Bahasa Melayu Berdasarkan Perbendaharaan Kata Tak Tersekat, Muhamad Ismail Jarina

Student Works (2000-2009)

Oleh yang demikian, perisian alatan pembaca bahasa Melayu berdasarkan perbendaharaan kata tak tersekat dapat dibagunkan untuk menolong golongan ini menggunakan komputer untuk tujuan membaca dengan maksimum. Pada amnya, pakej ini dibangunkan berdasarkan skedul pembangunan projek yang dirancang. Perisian yang dibangunkan ini terdiri daripada modul-modul, contohnya seperti modul file, modul edit, modul help dan sebagainya. Antara elemen-elemen yang digunakan untuk membangunkan perisian ini adalah microsoft visual basic 6.0, microsoft access 2000, microsoft word, gold wave serta beberapa perisian yang terkini. Elemen yang sangat penting dalam perisisan ini adalah sistem bunyi dan oleh itu, perisian penyunting audio goldwave digunakan. Tambahan pula, saya …

Sistem Helpdesk, Zainal Abidin Mohd Zulfikar Lufti

Student Works (2000-2009)

Sistem Helpdesk ini telah di bangunkan khusus untuk membantu pihak Time Reach (M) Sdn Bhd di dalam mengautomasikan sistem Helpdesknya yang selama ini di buat secara manual. Pembangunan sistem ini juga akan memudahkan segala urusan penyimpanan data dan maklumat mengenai masalah dan aduan pengguna mengenai Helpdesk ini. Sistem yang di bangunkan ini juga mempunyai ciri-ciri yang membolehkannya di intergrasikan dengan sistem lain yang telah sedia ada di Time Reach (M) Sdn Bhd. Sistem Helpdesk yang di bangunkan ini merupakan sistem yang merangkumi keseluruhan aktiviti Helpdesk di Time Reach (M) Sdn Bhd. Ia merangkumi segala permasalahan yang berlaku di bahagian Teknologi …

Sistem Nota Guru: Kajian Kes Di Sekolah Menengah Kebangsaan Tengku Ampuan Jemaah, Pelabuhan Klang, Mahamud Norhaslinda

Student Works (2000-2009)

The rapid development of computer and industry, nowadays becoming the main area for every person to compete. Preparing easy and aspect become the main choice in producing work that more productivity that have quality with the best work performance. This positive development is helping to increase the quality of management including notes management in school. The System of Teacher's Notes that I developed is to help the staff that assign to do a duty smoothly and to solve the problem while using design to fulfill all the needed that exist in the flowing of notes preparation. The preparing of the …

Intelligent Score Agent Web Monitoring & Retrieving System, Chong Wah Chan

Student Works (2000-2009)

This project documentation is an exercise submitted to the Facult Computer Science and Information Technology, University of Malaya, as a report for the Final Year Project Level One, WXES3l81 and Final Year Project Level Two, WXES3182, which in turn serves as a partial fulfillment for the Bachelor or Computer Science degree. The system proposed is ScoreAgent, an intelligent agent which will monitor a particular soccer Web site. The site is providing the online result to surfers for the on going soccer matches. If the result section in the page has changed, ScoreAgent will report the result of a soccer match …

Sistem Pengesanan Dan Pembetulan Ralat Menggunakan Teknik Hamming Codes Dan Cyclic Redundency Check (Crc) (Decoder), Wan Ibrahim Wan Ramlah

Student Works (2000-2009)

Pengesanan dan pembetulan ralat banyak digunakan dalam sistem komunikasi di mana ia menyediakan penyelesaian yang inovatif kepada komunikasi yang bermasalah. Tesis ini dicadangkan untuk mengkaji asas pengesanan dan pembetulan ralat.Tajuk tesis ini ialah Sistem Pengesanan dan Pembetulan ralat menggunakan teknik Hamming Codes dan Cyclic Redundency Checks (Decoder). Teknik pengesanan dan pembetulan ralat yang digunakan dalarn kajian ini adalah Hamming Codes dan Cyclic Redundency Check (CRC). Hamming Codes merupakan kod yang boleh rnengesan dan membetulkan ralat di mana dua jenis ralat dapat dikesan dan satu jenis ralat dapat dibetulkan. Cyclic Redundency Check (CRC) merupakan kod pengesanan ralat yang menggunakan teknik pengiraan …

E-Jenayah Ancaman Alaf Digital, Ibrahim Mohamad Zaki

Student Works (2000-2009)

The Internet is the greatest technological innovation since the achievement of the industrial revolution, accomplished through amalgamation of information, communication and digital technology which then created the largest and widest ever computer networking system. Therefore, new sphere known as the Internet which is virtual in nature, also prominently name as cyber-world. Consequently, whole new structures of politicaL economy, social and culturally of society have been forced into us to accept the changes which then inaugurate ·with new electronic practices. Eventually, the Internet was created by the use of inter networking of the computing system throughout the world with help of …

Component-Based Development Using Uml, L. Zhao, Keng Siau

Research Collection School Of Computing and Information Systems

Component-based software development (CBD) is a potential breakthrough for software engineering. Unified Modeling Language (UML) can potentially facilitate CBD design and modeling. Although many research projects concentrate on the conceptual interrelation of UML and CBD, few incorporate actual component frameworks into the discussion, which is critical for real-world software system design and modeling. This paper reviews component-based development, including the use of UML for modeling CBD. The paper then discusses the means by which UML extension mechanisms can be used to better support the popular component framework -- CORBA. Two other important component frameworks, DCOM and Web Services, are also …

Ecs Electronic Cars System, Wilyang Soh

Student Works (2000-2009)

The revolution of Internet has enable billions of people all around the world to communicate interactively. Thus, business people have made used of the global market space in the Internet which breaks through the barrier of time and distance to promote their products. The Electronic Cars System is one of the e-commerce solutions for merchants to conduct business over the Internet and the target users are local car dealers and potential car buyers including local people and foreign workers in Malaysia only. Electronic cars system is a fascinating and worthwhile topic to be researched on. This thesis steps towards developing …

Sistem Pengurusan Minit Mesyuarat (Simm), Ishak Norharizal

Student Works (2000-2009)

Pengurusan minit mesyuarat mempunyai peranannya amat penting dalam membantu pihak pengurusan dalam membuat keputusan dan bukti sesuatu tindakan. Namun demikian, pengurusan minit selalu di ambil mudah dan tidak dilakukan dengan betul. Atas sebab ini, SiMM telah dibangunkan bagi memenuhi keperluan dalam menyelesaikan masalah ini. SiMM, Sistem Minit Mesyuarat adalah sebuah sistem yang pertama dibangunkan di Universiti Malaya menguruskan minit mesyuarat iaitu bermula daripada penyediaan, hingalah kepada proses penyimpanan. Ia adalah sistem pangkalan data berasaskan web yang mampu mengawal capaian dan seterusnya menyelenggara rekod-rekod dengan lebih sistematik. Secara tidak langsung, data-data minit mesyuarat akan lebih terkawal dan terjamin keselamatannya. SiMM adalah …

Sistem Buku Resipi Bermultimedia Smartcook, Mohd Amin Nor Aliza

Student Works (2000-2009)

Sistem SmartCook adalah merupakan projektahun akhir bagi memenuhi keperluan dalam penganugerahan Ijazah Sarjana Muda di Fakulti Sains Komputer. Sistem SmartCook merupakan sistem yang berkonsepkan buku resipi bermultimedia. Di samping melaksanakan kursus latihan ilmiah, ia juga bertujuan dalam menerajui era pembangunan teknologi maklumat yang semakin pesat kini dan sama-sama bersaing dengan perisian yang wujud, namun banyak yang tidak memenuhi kehendak pengguna sepenuhnya seperti antaramuka yang kurang menarik dan sebagainya. SmartCook mempunyai kandungan koleksi berbagai resepi seperti masakan-masakan dari berbagai bangsa, aneka pembasuh mulut dan diselitkan juga koleksi petua berkaitan masakan. Semua maklumat di dalam sistem ini dimanipulasikan dalam interaktif multimedia yang …