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Articles 22441 - 22470 of 23190
Full-Text Articles in Entire DC Network
Search For R-Parity Violating Decays Of Supersymmetric Particles In E+E- Collisions At Centre-Of-Mass Energies Near 183 Gev, R. Barate, M. Thulasidas
Search For R-Parity Violating Decays Of Supersymmetric Particles In E+E- Collisions At Centre-Of-Mass Energies Near 183 Gev, R. Barate, M. Thulasidas
Research Collection School Of Computing and Information Systems
Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant LLE¯LLE¯, LQD¯LQD¯ or U¯D¯D¯U¯D¯D¯ coupling are performed using the data collected by the ALEPH collaboration at centre-of-mass energies of 181–184 GeV. The observed candidate events in the data are in agreement with the Standard Model expectations. Upper limits on the production cross-sections and lower limits on the masses of charginos, sleptons, squarks and sneutrinos are derived.
Study Of Fermion Pair Production In E+E- Collisions At 130-183 Gev, R. Barate, M. Thulasidas
Study Of Fermion Pair Production In E+E- Collisions At 130-183 Gev, R. Barate, M. Thulasidas
Research Collection School Of Computing and Information Systems
The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e−e+e− collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for e+e−e+e−, μ+μ−μ+μ−, τ+τ−τ+τ−, qq¯qq¯, bb¯bb¯ and cc¯cc¯ production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions, leptoquarks, Z′Z′ bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale ΛΛ of e+e−ff¯e+e−ff¯ contact interactions are typically in the range from 2 to 10 TeV. Limits on R-parity violating sneutrinos reach masses of a few …
Implementing Sap R/3 At The University Of Nebraska, T. Sieber, Keng Siau, Fiona Fui-Hoon Nah, M. Sieber
Implementing Sap R/3 At The University Of Nebraska, T. Sieber, Keng Siau, Fiona Fui-Hoon Nah, M. Sieber
Research Collection School Of Computing and Information Systems
In April 1995, I asked four Nebraskans from the private sector and four senior people of the University to review the administrative processes of the University of Nebraska. In the appointment letter for this Task Force, I noted that many current administrative processes need to be examined to improve quality and productivity.
From Austria To The United States And From Evaluating Therapists To Developing Cognitive Resources Theory: An Interview With Fred Fiedler, Robert Hooijberg, Jaepil Choi
From Austria To The United States And From Evaluating Therapists To Developing Cognitive Resources Theory: An Interview With Fred Fiedler, Robert Hooijberg, Jaepil Choi
Research Collection Lee Kong Chian School Of Business
Interviews Fred Fiedler, researcher on the field of leadership as part of a study that aims to obtain a sense of researchers' personality, research ideas and insights on the state of the field. Personal and professional background; Fiedler's research program; Leadership studies trends; Accomplishments in research; Contributions to the study of leadership.
On Business Education In Singapore: The Past, The Present And The Future, Teck Meng Tan, Kwong Sin Leong, Yang Hoong Pang
On Business Education In Singapore: The Past, The Present And The Future, Teck Meng Tan, Kwong Sin Leong, Yang Hoong Pang
Research Collection School Of Accountancy
Examines the developments in business education in Singapore and directions for its development. Post-graduate programs; Status of management education at universities; Broadening of education in Singapore universities.
Organizing Culture: Leader Roles, Behaviors, And Reinforcement Mechanisms, Gerard George, Randall G. Sleeth, Mark A. Siders
Organizing Culture: Leader Roles, Behaviors, And Reinforcement Mechanisms, Gerard George, Randall G. Sleeth, Mark A. Siders
Research Collection Lee Kong Chian School Of Business
Organizational leaders provide the primary impetus in defining, forming and shaping corporate culture. Leadership literature emphasizes on the leader's role in "articulating a vision" and the leader's pivotal role in establishing culture by setting objectives and then removing hurdles by smoothing the path for attaining those objectives. The model of corporate culture transmission focuses on behaviors that corporate leaders employ to create, communicate and manage corporate culture. However, the model does not emphasize interpretation and identification with leader behaviors in ways that would cause members to embrace the leader's values and beliefs. Improved focus over two decades does not yet …
The Persistent Competitive Advantage Of Traditional Food Retailers In Asia: Wet Markets' Continued Dominance In Hong Kong, Arieh Goldman, Robert E. Krider, Seshan Ramaswami
The Persistent Competitive Advantage Of Traditional Food Retailers In Asia: Wet Markets' Continued Dominance In Hong Kong, Arieh Goldman, Robert E. Krider, Seshan Ramaswami
Research Collection Lee Kong Chian School Of Business
The focus of this article is the persistent continued strength of wet markets in Hong Kong and the weakness of supermarkets in the fresh food area. This phenomenon is surprising because, based on the experiences in North America and Western Europe and given the well-developed economy of Hong Kong, one would have expected supermarkets to dominate fresh food retailing and wet markets to be in retreat. In this article, the authors explain the reasons for the continued dominance of wet markets. They argue that consumers’shopping and consumption culture, the effectiveness of wet markets in handling consumers’needs, and the appropriateness of …
The Multi– Mode Resource– Constrained Project Scheduling Problem With Generalized Precedence Relations, Bert De Reyck, Willy Herroelen
The Multi– Mode Resource– Constrained Project Scheduling Problem With Generalized Precedence Relations, Bert De Reyck, Willy Herroelen
Research Collection Lee Kong Chian School Of Business
In this paper, we tackle the challenging problem of scheduling activities to minimize the project duration, in which the activities (a) are subject to generalized precedence relations, (b) require units of multiple renewable, non-renewable and doubly constrained resources for which a limited availability is imposed, and (c) can be performed in one of several different ways, reflected in multiple activity scenarios or modes. These multiple modes give rise to several kinds of tradeoffs (time/resource, time/cost and resource/resource trade-offs) which allow for a more effcient allocation and use of resources. We present a local search-based solution methodology which is able to …
A Different Look At Assessment Centers: Views Of Assessment Center Users, Filip Lievens, Hans Goemaere
A Different Look At Assessment Centers: Views Of Assessment Center Users, Filip Lievens, Hans Goemaere
Research Collection Lee Kong Chian School Of Business
This study aims to shed light on possible problems of assessment center users and designers when developing and implementing assessment centers. Semi-structured interviews with a representative sample of assessment center users in Flanders revealed that, besides a large variability in assessment center practice, practitioners experience problems with dimension selection and definition, exercise design, line/staff managers as assessors, distinguishing between observation and evaluation, and with the content of assessor training programs. Solutions for these problems are suggested.
Measuring Information Quality Of Web Site: Development Of Instrument, P. Katerattanakul, Keng Siau
Measuring Information Quality Of Web Site: Development Of Instrument, P. Katerattanakul, Keng Siau
Research Collection School Of Computing and Information Systems
Web sites have been extensively used to provide information to consumers. While practitioners and researchers have proposed different criteria for effective Web site design based on common sense, intuition, and rules-ofthumb, effective Web site design focusing on the quality of the information it provides has rarely been studied. In this research, we propose a framework and develop an instrument to measure the information quality of individual or personal Web sites. The theoretical foundation of this research is the information quality framework. The proposed framework and instrument were tested in an individual or personal Web site context.
The Window Distribution Of Multiple Tcps With Random Loss Queues, Archan Misra, Teunis Ott, John Baras
The Window Distribution Of Multiple Tcps With Random Loss Queues, Archan Misra, Teunis Ott, John Baras
Research Collection School Of Computing and Information Systems
Two approximate techniques for analyzing the window size distribution of TCP flows sharing a RED-like bottleneck queue are presented. Both methods presented first use a fixed point algorithm to obtain the mean window sizes of the flows, and the mean queue length in the bottleneck buffer. The simpler of the two methods then uses the ‘square root formula’ for TCP; the other method is more complicated. More often than not, the simpler method is slightly more accurate; this is probably due to the fact that window sizes of the different flows are negatively correlated.
Imagining The Future: Training Hong Kong Lawyers For The 21 St Century, David N. Smith
Imagining The Future: Training Hong Kong Lawyers For The 21 St Century, David N. Smith
Research Collection Yong Pung How School Of Law
Hong Kong must commit itself now to becoming one of the leaders in legal education in Asia and the world. To do so, it must dramatically rethink the structure, process and content of legal education. This will not be easy, but it is essential if Hong Kong is to continue to serve as one of the great centres of finance, trade and technology in the world and if it is to maintain and secure a position of leadership in 21st century China and the Pacific region.
An Investigation Of Price Discovery In Informationally-Linked Markets: Equity Trading In Malaysia And Singapore, David K. Ding, Frederick H. Harris, Sie Ting Lau, Thomas H. Mclnish
An Investigation Of Price Discovery In Informationally-Linked Markets: Equity Trading In Malaysia And Singapore, David K. Ding, Frederick H. Harris, Sie Ting Lau, Thomas H. Mclnish
Research Collection Lee Kong Chian School Of Business
Using transactions data for the Kuala Lumpur Stock Exchange and the Stock Exchange of Singapore (SES) for a major Malaysian conglomerate, Sime Darby Berhad, and intraday exchange rate data, we investigate whether and to what extent each exchange contributes to price discovery. Results indicate that the price series are cointegrated. The raw data appear to indicate the presence of arbitrage opportunities, but none exist after taking exchange rate changes into account. Using the common long-memory factors of Gonzalo and Granger (1995, Journal of Business and Economic Statistics 13, 1-9), we show that while the majority of the price discovery (approximately …
Mpeg-4 Systems And Applications, Hari Kalva, Lai-Tee Cheok, Alexandros Eleftheriadis
Mpeg-4 Systems And Applications, Hari Kalva, Lai-Tee Cheok, Alexandros Eleftheriadis
Research Collection School Of Computing and Information Systems
MPEG-4, under the auspices of the ISO, is specifying tools to enable object-based audio-visual presentations [3]. These include tools to encode individual objects, compose presentations with objects, store these object-based presentations and access these presentations in a distributed manner over networks. The main distinguishing feature of object-based audio-visual presentations is the scene composition at the user terminal. The objects that are part of a scene are composed and displayed at the user end as opposed to encoding the composed scenes as is done in the case of MPEG-2. Such object-based representation and presentation has several benefits including compression efficiency and …
Multivariate Density Forecast Evaluation And Calibration In Financial Risk Management: High-Frequency Returns On Foreign Exchange, Francis X. Diebold, Jinyong Hahn, Anthony S. Tay
Multivariate Density Forecast Evaluation And Calibration In Financial Risk Management: High-Frequency Returns On Foreign Exchange, Francis X. Diebold, Jinyong Hahn, Anthony S. Tay
Research Collection School Of Economics
We provide a framework for evaluating and improving multivariate density forecasts. Among other things, the multivariate framework lets us evaluate the adequacy of density forecasts involving cross-variable interactions, such as time-varying conditional correlations. We also provide conditions under which a technique of density forecast calibration can be used to improve deficient density forecasts, and we show how the calibration method can be used to generate good density forecasts from econometric models, even when the conditional density is unknown. Finally, motivated by recent advances in financial risk management, we provide a detailed application to multivariate high-frequency exchange rate density forecasts. © …
Zbroker: A Query Routing Broker For Z39.50 Databases, Yong Lin, Jian Xu, Ee Peng Lim, Wee-Keong Ng
Zbroker: A Query Routing Broker For Z39.50 Databases, Yong Lin, Jian Xu, Ee Peng Lim, Wee-Keong Ng
Research Collection School Of Computing and Information Systems
A query routing broker is a software agent that determines from a large set of accessing information sources the ones most relevant to a user's information need. As the number of information sources on the Internet increases dramatically, future users will have to rely on query routing brokers to decide a small number of information sources to query without incurring too much query processing overheads. In this paper, we describe a query routing broker known as ZBroker developed for bibliographic database servers that support the Z39.50 protocol. ZBroker samples the content of each bibliographic database by using training queries and …
Using Strategic Partnerships To Create A Sustainable Competitive Position For Hi-Tech Start-Up Firms, Arnoud De Meyer
Using Strategic Partnerships To Create A Sustainable Competitive Position For Hi-Tech Start-Up Firms, Arnoud De Meyer
Research Collection Lee Kong Chian School Of Business
In most cases these companies chose or were forced to engage in a technology partnership in order to develop and survive. As one would expect, some of these partnerships succeeded whilst others failed. With hindsight it occurred to the author that success or failure was not necessarily a random event, or idiosyncratic to one particular company, but that there seemed to be a pattern. Some partnerships failed because they were a strategic misfit, others probably because they were badly implemented. Based on these clinical case studies, The author addresses these questions: when and under what conditions a partnership is needed; …
Marketing, Business Processes, And Shareholder Value: An Organizationally Embedded View Of Marketing Activities And The Discipline Of Marketing, Rajendra Kumar Srivastava, Tasadduq A. Shervani, Liam Fahey
Marketing, Business Processes, And Shareholder Value: An Organizationally Embedded View Of Marketing Activities And The Discipline Of Marketing, Rajendra Kumar Srivastava, Tasadduq A. Shervani, Liam Fahey
Research Collection Lee Kong Chian School Of Business
The authors develop a framework for understanding the integration of marketing with business processes and shareholder value. The framework redefines marketing phenomena as embedded in three core business processes that generate value for customers-product development management, supply chain management, and customer relationship management-which in turn creates shareholder value. Such a conceptualization of marketing has the potential to introduce dramatic shifts in the scope, content, and influence of marketing in the organization. The authors highlight the implications of an organizationally embedded view of marketing for the future of marketing theory and practice.
The National Library Board Signs Memorandum Of Understanding With Singapore Management University, Singapore Management University
The National Library Board Signs Memorandum Of Understanding With Singapore Management University, Singapore Management University
SMU Press Releases and News
No abstract provided.
Design Approaches To Model-Based Simulation In Intelligent Computer Assisted Instruction, Bjoern Helfesrieder, Venky Shankararaman
Design Approaches To Model-Based Simulation In Intelligent Computer Assisted Instruction, Bjoern Helfesrieder, Venky Shankararaman
Research Collection School Of Computing and Information Systems
Model-based simulation systems have been created in various fields of engineering to train personnel or students in operation, maintenance and troubleshooting of complex devices and systems. A review of literature indicates a lack of good overviews of the approaches to system design of model-based training simulations in Intelligent Computer Assisted Instruction (ICAI). Though single systems have to some extent been evaluated with regard to their performance, an organised evaluation, especially a comparative evaluation of the systems that have been created within the field is lacking. To be able to successfully conduct an in-depth review under these conditions, we concentrate and …
Xcert Software, Inc., Keng Siau
Xcert Software, Inc., Keng Siau
Research Collection School Of Computing and Information Systems
Xcert’s business is in developing Internet and Intranet security enhancement technology. Xcert was founded in April 1996 by Andrew Csinger and Pat Richard and was headquartered in Vancouver, Canada. Xcert’s solution to Internet security was a public key infrastructure (PKI). PKI is a system of digital certi® cates, certi® cate authorities (CAs) and other registration authorities that verify and authenticate the validity of each party involved in an Internet transaction. Xcert’s PKI technology allows organizations of any size to issue digital certi® cates to their members. These organizations become their own CA and are empowered to issue digital certi® cates …
Wedagen: A Synthetic Web Database Generator, Pallavi Priyardarshini, Fengqiong Qin, Ee Peng Lim, Wee-Keong Ng
Wedagen: A Synthetic Web Database Generator, Pallavi Priyardarshini, Fengqiong Qin, Ee Peng Lim, Wee-Keong Ng
Research Collection School Of Computing and Information Systems
At the Centre for Advanced Information Systems (CAIS), a Web warehousing system is being developed to store and manipulate Web information. The system named WHOWEDA (WareHouse Of WEb DAta) stores extracted Web information as Web tables and provides several Web operators, eg. Web join, Web select, global coupling, etc., to manipulate Web tables. During the implementation of WHOWEDA, it is necessary to perform systematic testing on the system and to evaluate its system performance. While it is possible for WHOWEDA to be tested or evaluated using actual Web pages downloaded from WWW, the amount of time required for such testing …
Research Issues In Web Data Mining, Sanjay Kumar Madria, Sourav S. Bhowmick, Wee-Keong Ng, Ee Peng Lim
Research Issues In Web Data Mining, Sanjay Kumar Madria, Sourav S. Bhowmick, Wee-Keong Ng, Ee Peng Lim
Research Collection School Of Computing and Information Systems
In this paper, we discuss mining with respect to web data referred here as web data mining. In particular, our focus is on web data mining research in context of our web warehousing project called WHOWEDA (Warehouse of Web Data). We have categorized web data mining into threes areas; web content mining, web structure mining and web usage mining. We have highlighted and discussed various research issues involved in each of these web data mining category. We believe that web data mining will be the topic of exploratory research in near future.
Locating Web Information Using Web Checkpoints, Aik Kee Luah, Wee-Keong Ng, Ee Peng Lim, Wee Peng Lee, Yinyan Cao
Locating Web Information Using Web Checkpoints, Aik Kee Luah, Wee-Keong Ng, Ee Peng Lim, Wee Peng Lee, Yinyan Cao
Research Collection School Of Computing and Information Systems
Conventional search engines locate information by letting users establish a single web checkpoint1. By specifying one or more keywords, users direct search engines to return a set of documents that contain those keywords. From the documents (links) returned by search engines, user proceed to further probe the WWW from there. Hence, these initial set of documents (contingent upon the occurrence of keyword(s)) serve as a web checkpoint. Generally, these links are numerous and may not result in much fruitful searches. By establishing multiple web checkpoints, a richer and controllable search procedure can be constructed to obtain more relevant Web information. …
Manufacturing Strategy And New Venture Performance: A Comparison Of Independent And Corporate Ventures In The Biotechnology Industry, Shaker A. Zahra, Gerard George
Manufacturing Strategy And New Venture Performance: A Comparison Of Independent And Corporate Ventures In The Biotechnology Industry, Shaker A. Zahra, Gerard George
Research Collection Lee Kong Chian School Of Business
Little empirical research has compared the manufacturing strategies of corporate and independent new ventures. This study explores these differences with data from the young, science-based biotechnology industry, and examines the performance effects of manufacturing strategy variables including scope, competitive thrust, and capabilities. The results show that the corporate and independent biotechnology new ventures pursue significantly different manufacturing strategies, and that different dimensions of manufacturing strategies affect the performance of corporate vs. independent ventures quite differently.
Is The Term Premium A Risk Premium?, Louis H. Ederington, Jeremy C. Goh
Is The Term Premium A Risk Premium?, Louis H. Ederington, Jeremy C. Goh
Research Collection Lee Kong Chian School Of Business
This paper explores whether excess holding period returns on long vis-a-vis short-term securities behave in a manner that is consistent with (1) market efficiency, (2) the time-varying-term-premium variant of the expectations hypothesis, and (3) theories of the term premium that view it as a reward for risk bearing. Both traditional and modern theories of the term premium imply that it should evolve fairly slowly over time as attitudes toward risk and/or perceived covariances with wealth or consumption change. This implies that this period's term premium should have some predictive ability for next period's. However, we find that this quarter's ex-post …
Asian Higher Education And The Politics Of Identity, Lily Kong
Asian Higher Education And The Politics Of Identity, Lily Kong
Research Collection School of Social Sciences
No abstract provided.
Motion Tracking Of Human Mouth By Generalized Deformable Models, Syin Chan, Chong-Wah Ngo, Kok F. Lai
Motion Tracking Of Human Mouth By Generalized Deformable Models, Syin Chan, Chong-Wah Ngo, Kok F. Lai
Research Collection School Of Computing and Information Systems
We propose and evaluate four trackers for tracking the shape, motion and deformation of a human mouth in video sequences. The trackers are suitable for use in very low bitrate video coding systems. (C) 1999 Elsevier Science B.V. All rights reserved.
Internet, World Wide Web, And Creativity, Keng Siau
Internet, World Wide Web, And Creativity, Keng Siau
Research Collection School Of Computing and Information Systems
The growth of the Internet has been the most astonishing technological and social phenomenon of the last decade of this century. In 1990 only a few academics had heard of it; now, more than 50 million people use it. By the turn of the century, that figure could be 100–200 million. So far, the network's only constant has been that the number of new users has doubled almost every 12–18 months. Most organizations have or will soon have Internet access. The popularity of Internet provides a tremendous opportunity for individuals and organizations to explore its features and services for electronic …
Non-Repudiation In An Agent-Based E-Commerce System, Chin Chuan Liew, Wee-Keong Ng, Ee Peng Lim, Beng Suang Tan, Kok-Leong Ong
Non-Repudiation In An Agent-Based E-Commerce System, Chin Chuan Liew, Wee-Keong Ng, Ee Peng Lim, Beng Suang Tan, Kok-Leong Ong
Research Collection School Of Computing and Information Systems
Abecos is an agent-based e-commerce system under development at the Nanyang Technological University. A key factor in making this system usable in practice is strict security controls. One aspect of security is the provision of non-repudiation services. As protocols for non-repudiation have focused on -message non-repudiation, its adaptation to afford non-repudiation in a communication session for two agents in Abecos is inefficient. In this work, we investigate and propose a protocol for enforcing non-repudiation in a session. The protocol is believed to be applicable in any e-commerce system; agent- or not agent-based.