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Articles 3271 - 3300 of 3589

Full-Text Articles in Science and Technology Studies

An Epistemological And Methodological Study Of Technology Foresight, Choon Lee Chai Jan 2000

An Epistemological And Methodological Study Of Technology Foresight, Choon Lee Chai

Student Works (2000-2009)

This research is an epistemological and methodological study of technology foresight. The low realisation rate (28%) of technology foresight has put into question as to whether foresight research is a scientific research, and whether foresight method is a scientific method. ln this research, the notion of scientific method is critically analysed. A comparison between physical and social science research is also made in order to highlight their basic similarities and differences. The Delphi method, which is the fundamental method of technology foresight, is epistemologically evaluated, particularly with regards to its basic assumptions and premises. Apart from the above, the research …


Characterizations Of Classes Of Programs By Three-Valued Operators, Anthony K. Seda, Pascal Hitzler Dec 1999

Characterizations Of Classes Of Programs By Three-Valued Operators, Anthony K. Seda, Pascal Hitzler

Computer Science and Engineering Faculty Publications

Several important classes of normal logic programs, including the classes of acyclic, acceptable, and locally hierarchical programs, have the property that every program in the class has a unique two-valued supported model. In this paper, we call such classes unique supported model classes. We analyse and characterize these classes by means of operators on three-valued logics. Our studies will motivate the definition of a larger unique supported model class which we call the class of Phi-accessible programs. Finally, we show that the class of Phi -accessible programs is computationally adequate in that every partial recursive function can be implemented by …


On-Line Bayesian Tree-Structured Transformation Of Hidden Markov Models For Speaker Adaptation, Shaojun Wang, Yunxin Zhao Dec 1999

On-Line Bayesian Tree-Structured Transformation Of Hidden Markov Models For Speaker Adaptation, Shaojun Wang, Yunxin Zhao

Kno.e.sis Publications

This paper presents a new recursive Bayesian learning approach for transformation parameter estimation in speaker adaptation. Our goal is to incrementally transform (or adapt) the entire set of HMM parameters for a new speaker or new acoustic enviroment from a small amount of adaptation data. By establishing a clustering tree of HMM Gaussian mixture components, the finest affine transformation parameters for individual HMM Gaussian mixture components can be dynamically searched. The on-line Bayesian learning technique proposed in our recent work is used for recursive maximum a posteriori estimation of affine transformation parameters. Speaker adaptation experiments using a 26-letter English alphabet …


Critical It Role In Healthcare: National Agenda, Applications, And Technologies, Jack Corley, Warren Karp, Amit P. Sheth Oct 1999

Critical It Role In Healthcare: National Agenda, Applications, And Technologies, Jack Corley, Warren Karp, Amit P. Sheth

Kno.e.sis Publications

We share a widely-held vision that tomorrow's health care will be delivered by a distributed team using a knowledge based process that is focused on prevention and wellness. Caregivers will be able to treat and monitor patients where and when needed, capturing data as a natural byproduct of care delivery. Clinical teams with a wide range of skills and expertise will deliver consistent, quality care based on timely, situation-specific knowledge and guidance derived from outcomes evidence. That same knowledge will support advances in healthcare research and education. Home care and remote medicine will increase, reducing the need for high-cost hospitalization. …


Efficient Support For Decision Flows In E-Commerce Applications, Richard Hull, Francois Llirbat, Jianwen Su, Guozhu Dong, Bharat Kumar, Gang Zhou Oct 1999

Efficient Support For Decision Flows In E-Commerce Applications, Richard Hull, Francois Llirbat, Jianwen Su, Guozhu Dong, Bharat Kumar, Gang Zhou

Kno.e.sis Publications

In the coming era of segment-of-one marketing, decisions about business transactions will be quite intricate, so that customer treatments can be highly individualized, reflecting customer preferences, targeted business objectives, etc. This paper describes a paradigm called “decision flows” for specifying a form of incremental decision-making that can combine a myriad of diverse business factors and be executed in near-realtime. Starting with initial input, a decision flow will iteratively gather and derive additional information until a conclusion is reached. Decision flows can be specified in a rules-based manner that generalizes so-called “business rules” but provides more structure than traditional expert systems. …


The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 3, Anming Zhang, Brent D. Bowen, Uno Aviation Institute Sep 1999

The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 3, Anming Zhang, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 99-7


The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 4 , Anming Zhang, Brent D. Bowen, Uno Aviation Institute Sep 1999

The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 4 , Anming Zhang, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 99-8


The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 2 , Anming Zhang, Brent D. Bowen, Uno Aviation Institute Sep 1999

The Conference Proceedings Of The 1999 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 2 , Anming Zhang, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 99-6


A Multilevel Secure Workflow Management System, Myong H. Kang, Judith N. Froscher, Amit P. Sheth, Krzysztof J. Kochut, John A. Miller Jun 1999

A Multilevel Secure Workflow Management System, Myong H. Kang, Judith N. Froscher, Amit P. Sheth, Krzysztof J. Kochut, John A. Miller

Kno.e.sis Publications

The Department of Defense (DoD) needs multilevel secure (MLS) workflow management systems to enable globally distributed users and applications to cooperate across classification levels to achieve mission critical goals. An MLS workflow management system that allows a user to program multilevel mission logic, to securely coordinate widely distributed tasks, and to monitor the progress of the workflow across classification levels is required. In this paper, we present a roadmap for implementing MLS workflows and focus on a workflow builder that is a graphical design tool for specifying such workflows.


Addressing The Inadequacies Of Information Available On The Internet: The Prospect For A Technical Solution, Alan I. Goldman Jun 1999

Addressing The Inadequacies Of Information Available On The Internet: The Prospect For A Technical Solution, Alan I. Goldman

Critical and Creative Thinking Capstones Collection

In the past ten years the Internet has been the carrier and transmitter of vast amounts of information. Most of it has never been subjected to peer review or even casual review and has therefore been the source of misinformation. Additionally, there is need for more researchers to utilize critical thinking techniques of evaluating the credibility of sources.

This paper chronicles my critical and creative thinking processes and results regarding these three areas of the information problems that are prevalent on the Internet. The first area is the problem of bad, biased or incorrect information including hoaxes and scams. I …


Collaborative Synergy Between Business And Academia: In Conversation With A Borges, S Watson And M R Rao, N Balasubramanian Jun 1999

Collaborative Synergy Between Business And Academia: In Conversation With A Borges, S Watson And M R Rao, N Balasubramanian

IIMB Management Review

While the need for greater collaboration between industry and academia is agreed upon by both sides, the engineering of such collaboration is often problematic. Generous funding from industry may come with strings attached which may not be acceptable to management institutes and yet it is a fact that with shrinking government funding, research is increasingly market driven. A mutual interchange is essential to the health of both theory and practice but the best people to teach business are not necessarily businessmen, or academics ensconced in their ivory towers. Business schools still have to overcome the competitive mindset and switch to …


How Proteins Fold, Flex, And Bind Other Molecules, Leslie A. Kuhn, Volker Schnecke, Michael L. Raymer, Paul C. Sanschagrin Apr 1999

How Proteins Fold, Flex, And Bind Other Molecules, Leslie A. Kuhn, Volker Schnecke, Michael L. Raymer, Paul C. Sanschagrin

Kno.e.sis Publications

No abstract provided.


The Airline Quality Rating 1999, Brent D. Bowen, Dean Headley, Uno Aviation Institute Apr 1999

The Airline Quality Rating 1999, Brent D. Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 99-3

he Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple criteria. This current report, Airline Quality Rating 1999, contains monthly Airline Quality Rating scores for 1998. Additional copies are available by contacting Wichita State University or the University of Nebraska at Omaha.

The Airline Quality Rating 1999 is a summary of month-by-month quality ratings for the ten major domestic U.S. airlines operating during 1998. Using the Airline Quality Rating system of weighted averages and montly performance data in the areas of on-time arrivals, …


Data Integration By Describing Sources With Constraint Databases, Xun Cheng, Guozhu Dong, Tzekwan Lau, Jianwen Su Mar 1999

Data Integration By Describing Sources With Constraint Databases, Xun Cheng, Guozhu Dong, Tzekwan Lau, Jianwen Su

Kno.e.sis Publications

We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of constraint database techniques. We assume the existence of a global database schema. The contents of each data source are described using a set of constraint tuples over the global schema; each such tuple indicates possible contributions from the source. The “source description catalog” (SDC) of a global relation consists of its associated constraint tuples. Such a method of description is advantageous since it is flexible to add new sources and to modify existing …


Efficient Mining Of Partial Periodic Patterns In Time Series Database, Jiawei Han, Guozhu Dong, Yiwen Yin Mar 1999

Efficient Mining Of Partial Periodic Patterns In Time Series Database, Jiawei Han, Guozhu Dong, Yiwen Yin

Kno.e.sis Publications

Partial periodicity search, i.e., search for partial periodic patterns in time-series databases, is an interesting data mining problem. Previous studies on periodicity search mainly consider finding full periodic patterns, where every point in time contributes (precisely or approximately) to the periodicity. However, partial periodicity is very common in practice since it is more likely that only some of the time episodes may exhibit periodic patterns.

We present several algorithms for efficient mining of partial periodic patterns, by exploring some interesting properties related to partial periodicity, such as the Apriori property and the max-subpattern hit set property, and by shared mining …


Patent & Trademark Depository Library Association Newsletter Mar 1999

Patent & Trademark Depository Library Association Newsletter

Journal of the Patent and Trademark Resource Center Association

No abstract provided.


Captions And Color Plates (V. 10-11, 1998-1999) Jan 1999

Captions And Color Plates (V. 10-11, 1998-1999)

BEADS: Journal of the Society of Bead Researchers

No abstract provided.


Multivalued Mappings, Fixed-Point Theorems And Disjunctive Databases, Pascal Hitzler, Anthony K. Seda Jan 1999

Multivalued Mappings, Fixed-Point Theorems And Disjunctive Databases, Pascal Hitzler, Anthony K. Seda

Computer Science and Engineering Faculty Publications

In this paper, we discuss the semantics of disjunctive programs and databases and show how multivalued mappings and their fixed points arise naturally within this context. A number of fixed-point theorems for multivalued mappings are considered, some of which are already known and some of which are new. The notion of a normal derivative of a disjunctive program is introduced. Normal derivatives are normal logic programs which are determined by the disjunctive program. Thus, the well-known single-step operator associated with a normal derivative is single-valued, and its fixed points can be found by well-established means. It is shown how fixed …


Maintaining Transitive Closure Of Graphs In Sql, Guozhu Dong, Leonid Libkin, Jianwen Su, Limsoon Wong Jan 1999

Maintaining Transitive Closure Of Graphs In Sql, Guozhu Dong, Leonid Libkin, Jianwen Su, Limsoon Wong

Kno.e.sis Publications

It is common knowledge that relational calculus and even SQL are not expressive enough to express recursive queries such as the transitive closure. In a real database system, one can overcome this problem by storing a graph together with its transitive closure and maintaining the latter whenever updates to the former occur. This leads to the concept of an incremental evaluation system, or IES.

Much is already known about the theory of IES but very little has been translated into practice. The purpose of this paper is to fill in this gap by providing a gentle introduction to and …


Infoharness: Managing Distributed, Heterogeneous Information, Kshitij Shah, Amit P. Sheth Jan 1999

Infoharness: Managing Distributed, Heterogeneous Information, Kshitij Shah, Amit P. Sheth

Kno.e.sis Publications

Today, important information is scattered in so many places, formats, and media, that getting the right information at the right time and place is an extremely difficult task. Developing a single software product, for example, includes the creation of documents ranging from the requirements specification and project schedules to marketing presentations, multimedia tutorials, and more. Each document may be created by a different person using a different tool, and each may be stored in a different place. InfoHarness is an information integration system, platform, and tool set that addresses these problems, managing huge amounts of heterogeneous information in a distributed …


Processes Driving The Networked Economy, Amit P. Sheth, Will Van Der Aalst, I. Budak Arpinar Jan 1999

Processes Driving The Networked Economy, Amit P. Sheth, Will Van Der Aalst, I. Budak Arpinar

Kno.e.sis Publications

The authors propose that an organic workflow-process technology will power the evolution of information system architectures. The authors outline three likely stages of architectural evolution in the context of a networked economy and discuss critical gaps in the current technology with respect to their envisioned future.


The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 4 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute Dec 1998

The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 4 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-9


The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 1 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute Dec 1998

The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 1 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-6


The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 3 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute Dec 1998

The Conference Proceedings Of The 1998 Air Transport Research Group (Atrg) Of The Wctr Society, Volume 3 , Tae Hoon Oum, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-8


The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 2, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute Nov 1998

The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 2, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-4


The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 1, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute Nov 1998

The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 1, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-3


The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 3, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute Nov 1998

The Symposium Proceedings Of The 1998 Air Transport Research Group (Atrg), Volume 3, Aisling Reynolds-Feighan, Brent D. Bowen, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-5


Logical Information Modeling Of Web-Accessible Heterogeneous Digital Assets, Kshitij Shah, Amit P. Sheth Apr 1998

Logical Information Modeling Of Web-Accessible Heterogeneous Digital Assets, Kshitij Shah, Amit P. Sheth

Kno.e.sis Publications

This paper introduces the MREF framework for representing and correlating information at a higher semantic level than is possible with Web-based information systems today. The role that metadata plays in this framework is described, together with a metadata based infrastructure to support our media independent information correlation paradigm. To keep it consistent with evolving standards, broader acceptance and ease of implementation, MREF abstraction is structured on top of RDF and XML. Its central role in the context of the InfoQuilt system, for exploiting heterogeneous digital media using a federated and scalable architecture, is briefly described.


The Airline Quality Rating 1998, Brent Bowen, Dean Headley, Uno Aviation Institute Apr 1998

The Airline Quality Rating 1998, Brent Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 98-1

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Quality Rating 1998, contains monthly Airline Quality Rating scores for 1997. Additional copies are available by contacting Wichita State University or the University of Nebraska at Omaha.

The Airline Quality Rating 1998 is …


Patent & Trademark Depository Library Association Newsletter Mar 1998

Patent & Trademark Depository Library Association Newsletter

Journal of the Patent and Trademark Resource Center Association

No abstract provided.