Computer Sciences Commons^™

Assurance Services For Business-To- Business Electronic Commerce: A Framework And Implications, Deepak Khazanchi, Steve G. Sutton

Information Systems and Quantitative Analysis Faculty Publications

The electronic commerce assurance market has been estimated to be potentially worth $11 billion. To date the focus of assurance services has largely been on web commerce (and therefore business to consumer) related services, leaving the business-to-business (B2B or B-to-B) electronic commerce market relatively untapped. Yet, with Electronic Data Interchange (EDI) being mandated by large companies and government agencies, small- to medium-sized firms have struggled to acquire and implement this technology with little understanding of this new age of electronic commerce. As the ubiquitous Internet allows more firms to become EDI-capable, there is an imminent need for having some independent …

Fages' Theorem And Answer Set Programming, Yuliya Lierler, Esta Erdem, Vladimir Lifschitz

Computer Science Faculty Proceedings & Presentations

We generalize a theorem by François Fages that describes the relationship between the completion semantics and the answer set semantics for logic programs with negotiation as failure. The study of this relationship is important in connection with the emergence of answer set programming. Whenever the two semantics are equivalent, answer sets can be computed by a satisfiability solver, and the use of answer set solvers such as SMODELS and DLV is unnecessary. A logic programming representation of the blocks world due to Ilkka Niemelä is discussed as an example.

To Host A Legacy System To The Web, Miguel Angel Bustamante

Student Work

The dramatic improvements in global interconectivity due to intranets, extranets and the Internet has led to many enterprises to consider migrating legacy systems to a web based systems. While data remapping is relatively straightforward in most cases, greater challenges lie in adapting legacy application software. This research effort describes an experiment in which a legacy system is migrated to a web-client/server environment. First, this thesis reports on the difficulties and issues arising when porting a legacy system International Invoice (IIMM) to a web-client/server environment. Next, this research analyzes the underlying issues, and offer cautionary guidance to future migrators and finally …

On The Geometries Of Conic Section Representation Of Noisy Object Boundaries, Qiuming Zhu

Computer Science Faculty Publications

This paper studies some geometrical properties of conic sections and the utilization of these properties for the generation of conic section representations of object boundaries in digital images. Several geometrical features of the conic sections, such as the chord, the characteristic point, the guiding triangles, and their appearances under the tessellation and noise corruption of the digital images are discussed. The study leads to a noniterative algorithm that takes advantage of these features in the process of formulating the conic section parameters and generating the approximations of object boundaries from the given sequences of edge pixels in the images. The …

Using Omissive Faults To Obtain Local Convergence In Partially Connected Networks, M. H. Azadmanesh, A. W. Krings

Computer Science Faculty Publications

Approximate Agreement is an important issue in faulttolerant distributed computing where non-faulty processes exchange and vote upon their local values, to arrive at values which are within the range of the initial values of the nonfaulty processes and within a predefined tolerance of each other. Results to date in Approximate Agreement, however, are not capable of exploiting omission faults. Omission faults are presumed not to occur or a predefined default value is substituted for those values not received, or they are globally discarded before the voting algorithm executes. As a result, hybrid fault models can not differentiate between omissive and …

The Nature And Structure Of Impediments To Edi Adoption And Integration: A Survey Of Small- And Medium-Sized Enterprises, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Electronic data interchange (EDI) is a key enabling component of business-to-business electronic commerce. As firms adopt and integrate advanced information technologies such as EDI, it is important to understand the nature of challenges faced by them. This becomes especially important given the fact that nearly 99.7% of all businesses in the US can be classified as small- to medium-sized enterprises (SMEs). As costs and risks associated with implementing new information technologies decrease, these firms will surely need to focus their attention on managing impediments associated with new technology implementation and learn from the failures or successes of their peer. Consequently, …

Minimum Cross-Entropy Approximation For Modeling Of Highly Intertwining Data Sets At Subclass Levels, Qiuming Zhu

Computer Science Faculty Publications

We study the problem of how to accurately model the data sets that contain a number of highly intertwining sets in terms of their spatial distributions. Applying the Minimum Cross-Entropy minimization technique, the data sets are placed into a minimum number of subclass clusters according to their high intraclass and low interclass similarities. The method leads to a derivation of the probability density functions for the data sets at the subclass levels. These functions then, in combination, serve as an approximation to the underlying functions that describe the statistical features of each data set.

Quantitative Object Motion Prediction By An Art2 And Madaline Combined Neural Network: Concepts And Experiments, Qiuming Zhu, Ahmed Y. Tawfik

Computer Science Faculty Publications

An ART2 and a Madaline combined neural network is applied to predicting object motions in dynamic environments. The ART2 network extracts a set of coherent patterns of the object motion by its self-organizing and unsupervised learning features. The identified patterns are directed to the Madaline network to generate a quantitative prediction of the future motion states. The method does not require any presumption of the mathematical models, and is applicable to a variety of situations.

Does Pedagogy Make A Difference?: An Experimental Study Of Unethical Behavior In Information Systems, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Jn the past few years ethics education has received increasing attention from the business and academic communities. Many have instituted pedagogical programs for increasing awareness of ethical issues, ethical norms and codes of conduct in different professions. It appears that both researchers and practitioners are in agreement about the need for providing adequate ethics education to managers (13, 20, 9). This has become especially important in the context of the information systems (IS) discipline. Proliferation of information and communication technologies has raised many questions on what constitutes ethical managerial behavior. Researchers have reported that the existence of a computer-based information …

Relationship Between Information System Project Characteristics And Project Management Activities: An Empirical Investigation, Vijay V. Raghavan, Deepak Khazanchi, Joyce L. Webster

Information Systems and Quantitative Analysis Faculty Publications

The activities of a project manager in overseeing the development of a software system are many and varied. Not all such activities are performed in managing every project. If so, a natural ensuing question is whether project managers adapt their managerial functions to the projects being managed. Prior research suggests that they do adapt, and that project characteristics may be the factors determining this adaptation. This assertion is investigated by considering three characteristics of a project (size, type, and environment) and investigating their association with four traditionally recognized management functions (planning, organizing, controlling, and motivating). Results indicate that project managers …

An ‘Events’ Model For Information Aggregation, Douglas Havelka, Deepak Khazanchi

Information Systems and Quantitative Analysis Faculty Publications

Aggregation is one of the key characteristics of information delivered by "information systems." It is important because the ability to design effective support systems depends to a great extent upon the degree of flexibility with regards to information aggregation that can be incorporated in the system. This paper sets forth a conceptual model of information aggregation based on the events theory of accounting. The model suggests that aggregation should be considered as a two-dimensional concept, comprising a temporal and sectional dimension. The two axes are further delineated in the form of "levels of summation" based on specified "events" of aggregation. …

An Object Based Approach Towards The Automation Of Office Procedures Using Intelligent Messages, Robert L. Palumbo

Student Work

Office support systems are used to automate routine office tasks. Since office tasks often require the cooperation of several office workers who may be physically dispersed, it is important to develop advanced communication systems that better facilitate collaborative and cooperative office work among office workers.

In this thesis, we propose an approach to the construction of advanced communication systems in which messages are represented as objects that are “intelligent” and “active” and can therefore perform certain activities (such as interacting with various entities to collect data) and decisions (such as dynamically deciding which user to go to next) on their …

Ada In The Soviet Union, Peter Wolcott

Information Systems and Quantitative Analysis Faculty Proceedings & Presentations

Over the last decade and a half, the Ada programming language has aroused more financial, technical, political, and emotional forces than any other programming language. Because the language is a product of more than just technical factors, its progress is heavily influenced by the surrounding social, economic, and political environment. Judging by the technical characteristics of the language and the goals for its use, one would expect that Ada would be the subject of intense development by the USSR, as well as by the USA. In practice, the Ada experiences in these countries differ considerably. We examine the state of …

Hidden Markov Model For Visual Guidance Of Robot Motion In Dynamic Environment, Qiuming Zhu

Computer Science Faculty Publications

Models and control strategies for dynamic obstacle avoidance in visual guidance of mobile robot are presented. Characteristics that distinguish the visual computation and motion-control requirements in dynamic environments from that in static environments are discussed. Objectives of the vision and motion planning are formulated as: 1) finding a collision-free trajectory that takes account of any possible motions of obstacles in the local environment; 2) such a trajectory should be consistent with a global goal or plan of the motion; and 3) the robot should move at as high a speed as possible, subject to its kinematic constraints. A stochastic motion-control …

Pattern Classification In Dynamic Environments: Tagged Feature-Class Representation And The Classifiers, Qiuming Zhu

Computer Science Faculty Publications

he classifiers characterized by a tagged feature-class representation, a univariate discrimination approach, a cooperative classification scheme, and a logic-based learning strategy are discussed. Neither of the classifiers bears the constraints to the fixed sets of features and classes. Concepts of the tagged feature-class representation and the properties of feature matching in the dynamic environment are studied. Experimental tests and results of the classifiers are illustrated.

Scientific Computing In The Soviet Union, Seymour E. Goodman, William Mchenry, Peter Wolcott

Information Systems and Quantitative Analysis Faculty Publications

In the last decade, the Soviet Union has placed increased emphasis on the development of high-speed computers and networks for use in scientific, economic, and military applications. When Communist Party General Secretary Mikhail Gorbachev labeled supercomputer development a "top priority task for our science and economy" in April, 1987, he added new urgency to the production of machines that would both support activities in these applications and also serve as high-profile standard-bearers for perestroika, his program of restructuring and modernization for the nation. The Soviets have also undertaken some major projects in networking, including the creation of a nationwide packet-switched …

Test Generation By Fault Sampling, Vishwani Agrawal, Hassan Farhat, Sharad C. Seth

Mathematics Faculty Publications

This paper presents a novel technique of generating tests from a random sample of faults. The entire fault population of the circuit is randomly divided into two groups. Only one group, usually the smaller one, is used for test generation by the test-generator and fault-simulator programs. This group is known as the sample and its coverage is deterministic. The coverage of faults in the remaining group is similar to that of random vectors and is estimated from the distribution of fault detection probabilities in the circuit. As the sample size increases, the fraction of unsampled faults reduces. At the same …