Digital Commons Network^™

Semantic Web Process Lifecycle: Role Of Semantics In Annotation, Discovery, Composition And Orchestration, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

Development Of A Systems Engineering Model Of The Chemical Separations Process, Yitung Chen, Darrell Pepper, Randy Clarksean

Separations Campaign (TRP)

Two activities are proposed: the development of a systems engineering model and the refinement of the Argonne code AMUSE (Argonne Model for Universal Solvent Extraction). The detailed systems engineering model will be continuously focusing on the integrated approach to the analysis of the materials separations associated with the TRP Program. A second portion of the project will streamline and improve an integral part of the overall systems model, which is the software package AMUSE. AMUSE analyzes the UREX process and other related solvent extraction processes and defines many of the process streams that are integral to the systems engineering model. …

Efficient Security For Bgp Route Announcements, David M. Nicol, Sean W. Smith, Meiyuan Zhao

Computer Science Technical Reports

The Border Gateway Protocol (BGP) determines how Internet traffic is routed throughout the entire world; malicious behavior by one or more BGP speakers could create serious security issues. Since the protocol depends on a speaker honestly reporting path information sent by previous speakers and involves a large number of independent speakers, the Secure BGP (S-BGP) approach uses public-key cryptography to ensure that a malicious speaker cannot fabricate this information. However, such public-key cryptography is expensive: S-BGP requires a digital signature operation on each announcement sent to each peer, and a linear (in the length of the path) number of verifications …

Categorizing Non-Functional Requirements Using A Hierarchy In Uml., James David Moody

Electronic Theses and Dissertations

Non-functional requirements (NFRs) are a subset of requirements, the means by which software system developers and clients communicate about the functionality of the system to be built. This paper has three main parts: first, an overview of how non-functional requirements relate to software engineering is given, along with a survey of NFRs in the software engineering literature. Second, a collection of 161 NFRs is diagrammed using the Unified Modelling Language, forming a tool with which developers may more easily identify and write additional NFRs. Third, a lesson plan is presented, a learning module intended for an undergraduate software engineering curriculum. …

Healthcare Enterprise Process Development And Integration, Kemafor Anyanwu, Amit P. Sheth, Jorge Cardoso, John A. Miller, Krzysztof J. Kochut

Kno.e.sis Publications

Healthcare enterprises involve complex processes that span diverse groups and organisations. These processes involve clinical and administrative tasks, large volumes of data, and large numbers of patients and personnel. The tasks can be performed either by humans or by automated systems. In the latter case, the tasks are supported by a variety of software applications and information systems which are very often heterogeneous, autonomous, and distributed. The development of systems to manage and automate these processes has increasingly played an important role in improving the efficiency of healthcare enterprises. In this paper we look at four healthcare and medical applications …

Trusted S/Mime Gateways, Mindy J. Pereira

Dartmouth College Undergraduate Theses

The utility of Web-based email clients is clear: a user is able to access their email account from any computer anywhere at any time. However, this option is unavailable to users whose security depends on their key pair being stored either on their local computer or in their browser. Our implementation seeks to solve two problems with secure email services. The first that of mobility: users must have access to their key pairs in order to perform the necessary cryptographic operations. The second is one of transition: initially, users would not want to give up their regular email clients. Keeping …

Persistence And Prevalence In The Mobility Of Dartmouth Wireless Network Users, Clara Lee

Dartmouth College Undergraduate Theses

Wireless local-area networks (WLANs) are increasing in popularity. As more people use WLANs it is important to understand how these users behave. We analyzed data collected over three months of 2002 to measure the persistence and prevalence of users of the Dartmouth wireless network.

We found that most of the users of Dartmouth's network have short association times and a high rate of mobility. This observation fits with the predominantly student population of Dartmouth College, because students do not have a fixed workplace and are moving to and from classes all day.

Can Probabilistic Databases Help Elect Qualified Officials?, Judy Goldsmith, Alex Dekhtyar, Wenzhong Zhao

Computer Science and Software Engineering

We present a flexible framework for implementing reasoning with uncertainty: Semistructured Probabilistic Databases. This framework bridges the gap between the process of obtaining probabilistic information from data and its use in AI applications by providing the facilities to store and query diverse and complex probabilistic data.

Genescene: Biomedical Text And Data Mining, Gondy Leroy, Hsinchun Chen, Jesse D. Martinez, Shauna Eggers, Ryan R. Falsey, Kerri L. Kislin, Zan Huang, Jiexun Li, Jie Xu, Daniel M. Mcdonald, Gavin Ng

CGU Faculty Publications and Research

To access the content of digital texts efficiently, it is necessary to provide more sophisticated access than keyword based searching. GeneScene provides biomedical researchers with research findings and background relations automatically extracted from text and experimental data. These provide a more detailed overview of the information available. The extracted relations were evaluated by qualified researchers and are precise. A qualitative ongoing evaluation of the current online interface indicates that this method to search the literature is more useful and efficient than keyword based searching.

Ρ-Queries: Enabling Querying For Semantic Associations On The Semantic Web, Kemafor Anyanwu, Amit P. Sheth

Kno.e.sis Publications

This paper presents the notion of Semantic Associations as complex relationships between resource entities. These relationships capture both a connectivity of entities as well as similarity of entities based on a specific notion of similarity called ρ-isomorphism. It formalizes these notions for the RDF data model, by introducing a notion of a Property Sequence as a type. In the context of a graph model such as that for RDF, Semantic Associations amount to specific certain graph signatures. Specifically, they refer to sequences (i.e. directed paths) here called Property Sequences, between entities, networks of Property Sequences (i.e. undirected paths), or subgraphs …

Exception Handling For Conflict Resolution In Cross-Organizational Workflows, Zongwei Luo, Amit P. Sheth, Krzysztof Kochut, I. Budak Arpinar

Kno.e.sis Publications

Workflow management systems (WfMSs) are being increasingly deployed to deliver e-business transactions across organizational boundaries. To ensure a high service quality in such transactions, exception-handling schemes for conflict resolution are needed. The conflicts primarily arise due to failure of a task in workflow execution because of underlying application, or controlling WfMS component failures or insufficient user input. So far, little progress has been reported in addressing conflict resolution in cross-organizational business processes, though its importance has been recognized. In this paper, we identify the exception handling techniques that support conflict resolution in cross-organizational settings. In particular, we propose a novel, …

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 19, Number 7, May 2003, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

A Machine Learning Approach To Detecting Attacks By Identifying Anomalies In Network Traffic, Matthew Vincent Mahoney

Theses and Dissertations

The current approach to detecting novel attacks in network traffic is to model the normal frequency of session IP addresses and server port usage and to signal unusual combinations of these attributes as suspicious. We make four major contributions to the field of network anomaly detection. First, rather than just model user behavior, we also model network protocols from the data link through the application layer in order to detect attacks that exploit vulnerabilities in the implementation of these protocols. Second, we introduce a time-based model suitable for the bursty nature of network traffic: the probability of an event depends …

Guest Editorial: Text And Web Mining, Ah-Hwee Tan, Philip S. Yu

Research Collection School Of Computing and Information Systems

Text mining and web mining are two interrelated fields that have received a lot of attention in recent years. Text mining [1, 2] is concerned with the analysis of very large document collections and the extraction of hidden knowledge from text-based data. Web mining [3] refers to the analysis and mining of all web-related data, including web content, hyperlink structure, and web access statistics.

Efficient I/O For Computational Grid Applications, Ron A. Oldfield

Dartmouth College Ph.D Dissertations

High-performance computing increasingly occurs on "computational grids" composed of heterogeneous and geographically distributed systems of computers, networks, and storage devices that collectively act as a single "virtual" computer. A key challenge in this environment is to provide efficient access to data distributed across remote data servers. This dissertation explores some of the issues associated with I/O for wide-area distributed computing and describes an I/O system, called Armada, with the following features: a framework to allow application and dataset providers to flexibly compose graphs of processing modules that describe the distribution, application interfaces, and processing required of the dataset before or …

Idioms In Ovm, C. Flack, Antony L. Hosking, Jan Vitek

Department of Computer Science Technical Reports

No abstract provided.

Economics Of A Collaborative Peer-To- Peer Infrastructure For Content Distribution, Mohamed Hefeeda, Philipp Afeche, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Collectcast: A Peer-To-Peer Service For Media Streaming, Mohamed Hefedda, Ahsam Habib, Dongyan Xu, Bharat Bhargava, Boyan Botev

Department of Computer Science Technical Reports

No abstract provided.

Migration From A Waterfall/Non Sei Cmm Compliant Process To A Rup/Sei Cmm Compliant Process, Chad Amos Chamberlin

Theses and Dissertations

Software Life Cycle processes play a key role in the successful development of software products. Software processes continue to evolve as the field of software development progresses toward being a true engineering discipline. This theses has two objectives: (1) To apply software engineering knowledge gained during the pursuit of this degree toward the design and development of a complete, Software Engineering Institute (SEI) Capability Maturity Model (CMM) compliant process for the design phase of the software lifecycle. (2) To evaluate a Waterfall Lifecycle Model vs. an Iterative Lifecycle Model and compare SEI CM compliant processes to non-SEI CM compliant process …

Implementation E-Commerce Application Using Lotus Domino, Jianrong Dai

Student Work

E-commerce technologies enable enterprises to exchange information instantaneously, eliminate paperwork, and advertise their products and services to a global market. The Domino Server family, an integrated messaging and Web application software platform, is easy to build and manage integrated, collaborative solutions. In this project, I build a basic functional Domino-powered e-commerce application named E-Bookstore. The EBookstore web site contains three main components of an e-commerce web site (catalog of items, shopping cart, and checkout function), and provides a powerful search function to the customer. The unique session ID for each E-Bookstore web user is generated and stored, and is attached …

Ck Metrics For Daml Documents, S. Daniel Daugherty Ii

Honors Capstone Projects and Theses

No abstract provided.

A Taxonomy Of E-Commerce Risks And Failures, Giridharan Vilangadu Vijayaraghavan

Theses and Dissertations

Imagine being asked to test an e-commerce website. If you haven't tested one before, where would you start? What experience would you draw on? Where would you look for more information? Even very experienced testers have blind spots when they try to generate test ideas for an application that they have not tested. This thesis presents a simple outline that will help you generate test ideas and limit your blind spots. The outline is the result of about 18 months of research on classifying e-commerce related failures and risks. The result has 45 top-level categories and 700+ examples of errors …

Strategies For Testing Web Applications From The Client Side, Lawrence Thaddeus Prevatte Iii

Theses and Dissertations

This thesis is presented on the testing of computer software designed to operate over the World Wide Web. A fault model to guide Web software testing is developed, the components of Web software applications and their interfaces to each other are defined, and strategies to test Web software are discussed. The approach taken is to simplify the concepts of testing Web software to aid in a methodical treatment of the techniques required to conduct meaningful tests using a minimum amount of testing resources, conducting the tests from the client side of the Web application during the “ready for users” or …

Design And Implementation Of Exception Handling With Zero Overhead In Functional Languages, Ramon Zatarain Cabada

Theses and Dissertations

This dissertation considers the implementation of exception handling specifically for functional languages. Some implementations incur overhead for using exception handling even when no exceptions are raised. We show the results of some experiments with the SML of New Jersey and OCAML compilers, two well-known compilers for functional languages. Imperative languages avoid this overhead by using tables, but the approach does not easily transfer to compilers using continuation passing style (CPS). This dissertation proposes an approach that works with CPS compilers like SML of New Jersey. We first present an experiment where programs in SML are written with and without exception …

Ts-Pwlan: A Value-Add System For Providing Tiered Wireless Services In Public Hot-Spots, Arup Acharya, Chatschik Bisdikian, Archan Misra, Young-Bae Ko

Research Collection School Of Computing and Information Systems

Access to data services via wireless LANs at private (e.g., corporations or home) and public "hot-spot" (e.g., hotels and airports) setting is becoming a common place daily. Data access via (for profit) public wireless LAN (PWLAN) installations is typically based on user subscription and preconfigured services profiles pertaining primarily access to the global Internet. The goal of the ts-PWLAN project is to define an architecture and a prototype implementation that enables the provision of premium and non-premium tiers of services to transient and non-transient users. ts-PWLAN provides for dynamic renegotiations of tier of services and enables various billing modes, e.g., …

Secure The Image-Based Simulated Telesurgery System, Yanjiang Yang, Zhenlan Wang, Feng Bao, Robert H. Deng

Research Collection School Of Computing and Information Systems

Telemedicine services involve transmission of patient data over open computer network, and thus confront serious security challenges when the consequences are a matter of life and death. In this paper, we introduce an image-based simulated system for kyphoplasty telesurgery, wherein special attention is given to the fine-grained security implementation issues. Various security requirements are formalized and corresponding solutions are presented. Consequently, we implement the system to work in a secure way, while taking efficiency as a premier consideration.

On Machine Learning Methods For Chinese Document Classification, Ji He, Ah-Hwee Tan, Chew-Lim Tan

Research Collection School Of Computing and Information Systems

This paper reports our comparative evaluation of three machine learning methods, namely k Nearest Neighbor (kNN), Support Vector Machines (SVM), and Adaptive Resonance Associative Map (ARAM) for Chinese document categorization. Based on two Chinese corpora, a series of controlled experiments evaluated their learning capabilities and efficiency in mining text classification knowledge. Benchmark experiments showed that their predictive performance were roughly comparable, especially on clean and well organized data sets. While kNN and ARAM yield better performances than SVM on small and clean data sets, SVM and ARAM significantly outperformed kNN on noisy data. Comparing efficiency, kNN was notably more costly …

Enabling Remote Access To Personal Electronic Medical Records, James K. Archibald, Eric S. Hall, Charles D. Knutson, David K. Vawdrey

Faculty Publications

Millions of people suffer from medical conditions that should be made known to healthcare practitioners prior to treatment. Paramedics and emergency room doctors cannot provide optimal care without sufficient knowledge of a patient’s medical history. Lacking patient information such as allergies, current prescriptions, and preexisting conditions, medical professionals are often forced to either delay treatment or rely on instincts. Medical mistakes in situations like these kill thousands of people and cost an estimated US$37 billion each year in the United States [1]. With the advent of electronic medical records (EMRs), patient information can be stored in computer databases at hospitals …

Pair Programming To Facilitate The Training Of Newly-Hired Programmers, Mark Anthony Poff

Theses and Dissertations

Pair programming is touted by some software professionals as a style which allows developers to produce superior code in less time, and with fewer defects, than code produced by individuals. However, the acclaim for the pair methodology is not universal; some see it was a waste of effort which produces marginal improvements. Reported experiments which obtain quantitative results have typically been performed in an educational environment, and may not reflect actual workplace conditions. This thesis reports on an experiment using pair programing in an industrial setting. Its goal is to determine if this programming style can be used to increase …

Automated Annotation Of Heegaard Diagrams, Dmitry Mogilevsky '03

Honors Projects

No abstract provided.