Communication Commons^™

Structural Issues In Active Rule Systems, James Bailey, Guozhu Dong, Kotagiri Ramamohanarao

Kno.e.sis Publications

Active database systems enhance the functionality of traditional databases through the use of active rules or ‘triggers’. There is little consensus, though, on what components should be included in a rule system. In this paper, the expressive power of some simple active database rule systems is examined and the effect of choosing different features studied. Four important parameters of variation are presented, namely the rule language, the external query language, the meta rule language and the pending rule structure. We show that each of these is highly influential in determining the expressiveness of the rule system as a whole, and …

An Error Handling Framework For The Orbwork Workflow Enactment Service Of Meteor, Davasish Worah, Amit P. Sheth, Krzysztof J. Kochut, John A. Miller

Kno.e.sis Publications

Workflow Management Systems (WFMSs) can be used to re-engineer, streamline, automate, and track organizational processes involving humans and automated information systems. However, the state-of-the-art in workflow technology suffers from a number of limitations that prevent it from being widely used in large-scale mission critical applications. Error handling is one such issue. What makes the task of error handling challenging is the need to deal with errors that appear in various components of a complex distributed application execution environment, including various WFMS components, workflow application tasks of different types, and the heterogeneous computing infrastructure.

In this paper, we discuss a top-down …

Southern Discomforts: The Racial Struggle Over Popular Tv (Chapter Fourteen Of The Revolution Wasn't Televised), Steven Classen

Faculty Publications - Department of Communication and Cinematic Arts

Excerpt: "The assassination of NAACP field secretary Medgar Evers during the early hours of June 12, 1963 delivered a severe blow to the "Jackson movement"-a local insurgency dedicated to direct action and racial desegregation in the Mississippi capitol. 1 In the days following the murder and Evers's funeral, "go slow" forces within the NAACP and the Kennedy administration employed successful strategies to curtail the movement's sustained confrontation campaigns. Still, the deeply felt dissatisfaction of black Mississippians regarding segregation and its implications could not be quickly or strategically allayed. And in the months following Evers's death, African American frustration with the …

Common Law, And Privacy In Computer-Mediated Environments, Stephen D. Cooper

Communications Faculty Research

Computer-mediated environments pose a special challenge to our legal and cultural protections of privacy. These environments are unprecedented in the way commercially valuable information can be generated in their very use. The ease and low cost with which electronic information can be gathered and disseminated in these environments have led many to advocate regulation protecting privacy interests from commercial encroachment. At the same time, the use of digital communications to support criminal or terrorist activities have led others to advocate regulation allowing law enforcement agencies to eavesdrop or intercept. The cultural history of the Internet as a self-regulating, almost anarchical, …

Currents: Art Review, Jason Challas

SWITCH

A review of the exhibition "Currents", on view at Holmes Fine Arts Gallery Feb. 11th- April 28th 1995. Works reviewed include two by Bruce Cannon, “Comfort Zone” and “Donation Box,” as well as Tim Ryan's relief paintings and sculptures. It is noted that the exhibition also incorporates work by Joan Heemskerk, Dirk Paesmans, Joel Slayton, Jack Fulton, Gary Quinonez, Guy Marsden, Christine Tamblyn, Geri Wittig, and Joe Delappe.

Communications Embracing New Technologies, Peter Watt, Tony Kubicki

Journal of the Department of Agriculture, Western Australia, Series 4

The global trend in information delivery has been to electronic publications on disc, CD-Rom and the internet. Peter Watt and Tony Kubicki report on a survey of farmer preferences for receiving informationn, and describe Agriculture Western Australia's new electronic communication packages.

Algorithms For Adapting Materialised Views In Data Warehouses, Mukesh Mohania, Guozhu Dong

Kno.e.sis Publications

In this paper we consider the problem of materialised view adaptation in data warehouses. Materialised views are important in data warehousing where they are used to speed up query processing on large amounts of data. User requirements change over time, which may change the definitions of views dynamically. For such situations, the question arises whether the materialised views should be recomputed from scratch for every change in the definition or they should be obtained by adapting old materialised views. Changes to a view definition may be expensive, if the view is recomputed from scratch. Therefore, it is worthwhile to examine …

Your Ticket To The Information Highway, Andrée Rathemacher

Technical Services Faculty Presentations

Thank you letter and program evaluations for a workshop, "Your Ticket to the Information Highway," sponsored by the Institute for Labor Studies and Research (ILSR). The workshop was held on November 15, 1996 in Providence, Rhode Island.

The purpose of the three-hour workshop was to “provide a basic understanding of the Internet, demonstrate labor-related sites, and give [participants] hands-on experience ‘surfing the Net.’” The workshop was one of a series of three intended to help participants become more effective union leaders. It received unanimously positive evaluations from the ten participants.

On The Portability Of Behavioral Vhdl-93, Krishnaprasad Thirunarayan, Robert Ewing

Kno.e.sis Publications

Goossens defined a structural operational semantics for a subset of VHDL-87 and proved that the parallelism present in VHDL is benign. We extend this work to include shared variables in VHDL-93 that changes the underlying semantic model. In the presence of shared variables, non-deterministic execution of VHDL-93 processes destroys the unique meaning property. We identify and characterize a class of portable VHDL-93 descriptions for which unique meaning property can be salvaged.

Managing Multiple Information Sources Through Ontologies: Relationship Between Vocabulary Heterogeneity And Loss Of Information, Eduardo Mena, Vipul Kashyap, Arantza Illarramendi, Amit P. Sheth

Kno.e.sis Publications

The ability to deal with a huge number of independent and heterogeneous repositories is the most critical problem in Global Information Systems. One approach to enable efficient query processing is by utilizing semantic descriptions (organized as ontologies) of such repositories whenever available.

In this context semantic relationships among ontologies can be used Query Processors. Three kind of relationships are considered: synonyms and hypernyms. Using synonyms the semantic of the query is preserved; however, when synonyms are not available and hypernyms or hyponyms are used there exists some loss of information that must be measured.

Siggraph 96: New Orleans, Dan Tanner

SWITCH

A review of the SIGGRAPH (Special Interest Group on Computer Graphics and Interactive Techniques) Conference held in 1996 at the New Orleans Convention Center. Features of this conference includes, the latest technologies in Virtual Reality and Motion Capture, a discussion of The Bridge (a networked exhibition connecting the gallery at the convention center to the Contemporary Arts Center Gallery in downtown New Orleans), a review of the Electronic Theater animation festival, and a description of Wango (SJSU CADRE students’ contribution to the conference's user contributed display area).

Observer: An Approach For Query Processing In Global Information Systems Based On Interoperation Across Pre-Existing Ontologies, Eduardo Mena, Vipul Kashyap, Amit P. Sheth, Arantza Illarramendi

Kno.e.sis Publications

The huge number of autonomous and heterogeneous data repositories accessible on the “global information infrastructure” makes it impossible for users to be aware of the locations structure/organization, query languages and semantics of the data in various repositories. There is a critical need to complement current browsing, navigational and information retrieval techniques with a strategy that focuses on information content and semantics. In any strategy that focuses on information content, the most critical problem is that of different vocabularies used to describe similar information across domains. We discuss a scalable approach for vocabulary sharing. The objects in the repositories are represented …

Proof Strategies For Hardware Verification, Robert Eastham, Krishnaprasad Thirunarayan

Kno.e.sis Publications

Ascertaining correctness of digital hardware designs through simulation does not scale-up for large designs because of the sheer combinatorics of the problem. Formal verification of hardware designs holds promise because its computational complexity is of the order of number of different types of components (and not number of components in the design). This approach requires the specification of the behavior and the design in a formal language, and reason with them using a theorem prover. In this paper we attempt to develop a methodology for writing and using these specifications for some important classes of hardware circuits. We examine digital …

Military Control Over War News: The Implications Of The Persian Gulf, Stephen D. Cooper

Communications Faculty Research

News coverage of warfare poses a difficult problem for political systems with a free press, such as ours in the United States. In an era of high-tech weaponry and nearly instantaneous global communications, conflicts are inevitable between the obligation of the press to inform the general public, and the obligation of the military to successfully conduct war. The military’s controls over news-gathering during the 1990-91 Persian Gulf War set off a controversy still smoldering during the Haiti occupation of 1994. This paper examines the legal, historical, and technological aspects of this issue.

Semantic And Schematic Similarities Between Database Objects: A Context-Based Approach, Vipul Kashyap, Amit P. Sheth

Kno.e.sis Publications

In a multidatabase system, schematic conflicts between two objects are usually of interest only when the objects have some semantic similarity. We use the concept of semantic proximity, which is essentially an abstraction/mapping between the domains of the two objects associated with the context of comparison. An explicit though partial context representation is proposed and the specificity relationship between contexts is defined. The contexts are organized as a meet semi-lattice and associated operations like the greatest lower bound are defined. The context of comparison and the type of abstractions used to relate the two objects form the basis of a …

Spieltheorie, Alexander Chocholaty, Pascal Hitzler

Computer Science and Engineering Faculty Publications

No abstract provided.

Technology Augmented Litigation--Systemic Revolution, Fredric I. Lederer

Faculty Publications

This article reviews key aspects of high technology litigation, including technology augmented court records, two-way video arraignment and testimony, and technology based evidence display, and posits some of the critical jurisprudential and pragmatic issues posed by the use of such technologies

The Effects Of Telephone Technology On Saudi Arabian Society, Khalid I. Otibi

Dissertations and Theses @ UNI

The current research explores the significance of the introduction of telephone technology into Saudi Arabia. The problem addressed by the research was to identify and describe the cultural and economic significance that the telephone has had in Saudi Arabia. The purpose of the research was specifically to study the significance that telephone technology has in the three areas of family ties, business, and transportation. The methodology began with the development a data-collection document. An English version of the document was administered as a pilot test to students at the University of Northern Iowa. This pilot test revealed that the document …

Simulation Modeling Within Workflow Technology, John A. Miller, Amit P. Sheth, Krzysztof J. Kochut, Xuzhong Wang, Arun Murugan

Kno.e.sis Publications

This paper presents an approach for integrating simulation modeling and analysis capabilities within the workflow management system (WFMS) being developed in the Large Scale Distributed Information Systems (LSDIS) Lab at the University of Georgia. Simulation modeling can be used for studying the efficiency of workflow designs as well as studying the general performance and reliability of WFMSs. We also discuss the importance of using sophisticated monitoring and animation capabilities, and the use of workflow management technology to advance simulation technology itself. Finally, we demonstrate a sample simulation where tasks and task managers are simulated.

Subscriber's Behaviors In Electronic Discussion Groups: A Comparison Between Academics And Practitioners, Louisa Ha

School of Media and Communication Faculty Publications

This paper examines subscribers' behaviors in electronic discussion groups and compares the behavior of academic and practitioner subscribers. Data were collected from electronic mail surveys of the subscribers of four electronic discussion groups. Results of this study show that practitioners are much more likely to participate than academics as discussion leaders, respondents, and information-seekers. Academic subscribers are much more likely to act as quiet observers who only read others' messages and never post one themselves.

On The Equivalence Of Upward And Downward Inheritance Reasoners, Krishnaprasad Thirunarayan

Kno.e.sis Publications

In this paper, we analyze systematically the downward (property flow) and the upward (individual flow) views of inheritance for different categories of inheritance networks. We observe that both these views assign the same meaning to tree-structured hierarchies, and explain the divergence in the interpretation of more general networks in terms of their expressive power. This simple analysis sheds light on the inherent nature of nonmonotonic inheritance and can form the basis for the design of efficient algorithms for certain classes of queries. In addition, we describe the notion of preferential inheritance to specify additional conflict resolution information that can be …

Politics And The Information Superhighway, Bobby L. Rush

Trotter Review

The following statement was delivered on 24 May 1995 by the Congressman in support of the markup of The Communications Act of 1995.

Remarks Made At The Telecom 95 Conference, 3 October 1995, Nelson Mandela

Trotter Review

This is a reprint of the address made by President Nelson Mandela at the TELECOM 95 Conference from October 3, 1995. In his remarks, he stressed the importance of new technologies for the development of the African continent, as well as the need for the expansion of communication and information networks. President Mandela also set forth his own "set of principles designed to enable the full participation of both the developed countries and the developing countries in building a global information society."

Who Determines What Our Children See, Read, Do, Or Learn On The Internet?, Sondlo Leonard Mhlaba

Trotter Review

The issue of appropriate use of the Internet at home and in schools is being hotly debated right now in, and outside, the Internet. In March 1995 Marlene Goss wrote a letter to the discussion list of the Consortium for School Networking ([email protected]) appealing to educational policymakers to focus on access and equity when dealing with Internet in schools, instead of focusing on restricting such access. She found it remarkable how many hours were being spent "deciding student use when only 3% of the classroom teachers, professional adults, have use of the Internet." Her point was not so much that …

The Power Of Information And Communities Of Color, Lana W. Jackman, Patricia C. Payne

Trotter Review

In this age of the Information Superhighway, access to information has become a "human rights" issue for communities of color. Access to information is the backbone for economic growth in the world marketplace. Information literacy, the ability to find, evaluate, analyze, and use information effectively is the currency of infinite power and control of one's economic, social, and political destiny. For communities of color to gain access to this phenomenal communications/technological revolution, there is a need to become information literate.

Empowering Communities Of Color Through Computer Technology, Michael Roberts

Trotter Review

As we hurtle towards the 21st century, an increasing number of individuals start to realize that the ability to use computers and information technology resources effectively will determine how well individuals, organizations, and communities function in a rapidly changing technological society. Numerous studies, including one conducted in the Summer 1995 of Boston's Black community by Freedom House and The Trotter Institute, and highlighted in this issue, have documented the need of Americans—students, workers, unemployed, youth, adults and senior citizens, to become knowledgeable and proficient in the use of computers and information technology. There are several questions that do face communities …

An Interview With E. David Ellington, President Of Netnoir, Inc., Harold W. Horton Jr.

Trotter Review

The following article is an interview with E. David Ellington, who was the President of NetNoir, Inc., a company "dedicated to digitizing, archiving, and distributing global Afrocentric content."

Technological Revolution And The Black Studies Curriculum: A Course Proposal, Abdul Alkalimat

Trotter Review

A technological revolution is changing the world. The computer is fast becoming the universal tool in all aspects of work, production and communication, and innovations in bio-technology are fast transforming agriculture and health. The main impact of this technological revolution has been to restructure the economy, both the centers of accumulation as well as the labor process. It is also restructuring the methods by which people communicate, form and maintain communities. In general, the objective basis of social life is being fundamentally changed.

This essay proposes a basic course that not only focuses on the technological revolution, but should be …

Quest To Own The Information Superhighway: How Much Of It Can Blacks Realistically Expect To Own?, Matthew S. Scott

Trotter Review

On the so-called information superhighway, cable systems, wire telephone lines, cellular services, satellite delivery and broadcast properties are converging to create an interconnecting electronic system on which audio, video and text can travel worldwide. Even though the system is not yet complete, many African Americans have expressed concern that they will somehow be left out on the back roads without an ownership stake. This essay will attempt to answer some of those questions pertinent to this quest of ownership.

Frameworks For Evaluating Technology Transfer, Saskia Wilhelms

Trotter Review

Technology can help us to keep air and water clean, to educate ourselves and others, and to make our lives more comfortable. Technology, however, has in the ears of many, a threatening ring. Whether technology serves human well-being depends on its usage. Dust-covered computers, abandoned factories, underutilized hospitals, chemical plants polluting our environment, nuclear power threatening our health—negative instances of technology application abound. To obtain greater positive results, technology has to be applied and transferred according to criteria that enable us to assess potential benefits and risks associated with the technology. Technology transfer includes tangible and intangible assets, such as …