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The Determination Of Natural Frequencies Of Rectangular Plates With Mixed Boundary Conditions By Discrete Singular Convolution, G. W. Wei, Yibao Zhao, Y. Xiang Aug 2001

The Determination Of Natural Frequencies Of Rectangular Plates With Mixed Boundary Conditions By Discrete Singular Convolution, G. W. Wei, Yibao Zhao, Y. Xiang

Research Collection Lee Kong Chian School Of Business

This paper introduces the discrete singular convolution algorithm for vibration analysis of rectangular plates with mixed boundary conditions. A unified scheme is proposed for the treatment of simply supported, clamped and transversely supported (with nonuniform elastic rotational restraint) boundary conditions. The robustness and reliability of the present approach are tested by a number of numerical experiments. All results agree well with those in the literature.

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Video Partitioning By Temporal Slice Coherency, Chong-Wah Ngo, Ting-Chuen Pong, Roland T. Chin Aug 2001

Video Partitioning By Temporal Slice Coherency, Chong-Wah Ngo, Ting-Chuen Pong, Roland T. Chin

Research Collection School Of Computing and Information Systems

We present a novel approach for video partitioning by detecting three essential types of camera breaks, namely cuts, wipes, and dissolves. The approach is based on the analysis of temporal slices which are extracted from the video by slicing through the sequence of video frames and collecting temporal signatures. Each of these slices contains both spatial and temporal information from which coherent regions are indicative of uninterrupted video partitions separated by camera breaks. Properties could further be extracted from the slice for both the detection and classification of camera breaks. For example, cut and wipes are detected by color-texture properties, …

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Analysis Of A New Vehicle Scheduling And Location Problem, Ebru K. Bish, Thin Yin Leong, Chun-Lun Li, Jonathan W. C. Ng, David Simchi-Levi Aug 2001

Analysis Of A New Vehicle Scheduling And Location Problem, Ebru K. Bish, Thin Yin Leong, Chun-Lun Li, Jonathan W. C. Ng, David Simchi-Levi

Research Collection School Of Computing and Information Systems

We consider a container terminal discharging containers from a ship and locating them in the terminal yard. Each container has a number of potential locations in the yard where it can be stored. Containers are moved from the ship to the yard using a fleet of vehicles, each of which can carry one container at a time. The problem is to assign each container to a yard location and dispatch vehicles to the containers so as to minimize the time it takes to download all the containers from the ship. We show that the problem is NP-hard and develop a …

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Research Issues In Human-Computer Interaction In The Web-Based Environment, Fiona Fui-Hoon Nah, Sid Davis Aug 2001

Research Issues In Human-Computer Interaction In The Web-Based Environment, Fiona Fui-Hoon Nah, Sid Davis

Research Collection School Of Computing and Information Systems

The Internet and WWW are revolutionizing our daily lives and the way business is conducted. Since 1997, the Web has gradually evolved into a true economy and a new frontier for business. In this new Internet age, the design of a quality Web site is critical to the success of businesses. To attract and retain visitors, Web sites need to be human-centered, easy and quick to navigate, and speak the visitor’s language. User experience with the Web site is also important. The experience should be in line with the user’s goal and should feel natural to the user. Unfortunately, principles …

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Role Of Use Case Diagram In Requirement Analysis, Keng Siau, L. Lee Aug 2001

Role Of Use Case Diagram In Requirement Analysis, Keng Siau, L. Lee

Research Collection School Of Computing and Information Systems

Since its debut and acceptance as a de facto standard of the object-oriented paradigm, UML has receivedcontroversial reviews. The most controversial diagramming technique in UML is undoubtedly the Use Casediagrams. Some claim that Use Case diagrams do not play a valuable role in requirement analysis. Othersargue that Use Case diagrams captured neither the static nor the dynamic aspects of the systems. The objective of this study is to investigate the role and value of Use Case diagrams in requirement analysis. We will investigate the information content of Use Case diagram and its role in requirement analysis.

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Critical Factors For Successful Implementation Of Enterprise Systems, Fiona Fui-Hoon Nah, J. Lau, J. Kuang Aug 2001

Critical Factors For Successful Implementation Of Enterprise Systems, Fiona Fui-Hoon Nah, J. Lau, J. Kuang

Research Collection School Of Computing and Information Systems

Enterprise resource planning (ERP) systems have emerged as the core of successful information management and the enterprise backbone of organizations. The difficulties of ERP implementations have been widely cited in the literature but research on the critical factors for initial and ongoing ERP implementation success is rare and fragmented. Through a comprehensive review of the literature, 11 factors were found to be critical to ERP implementation success – ERP teamwork and composition; change management program and culture; top management support; business plan and vision; business process reengineering with minimum customization; project management; monitoring and evaluation of performance; effective communication; software …

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The Effectiveness Of Institutional Activism, Gary L. Caton, Jeremy Goh, Jeffrey Donaldson Jul 2001

The Effectiveness Of Institutional Activism, Gary L. Caton, Jeremy Goh, Jeffrey Donaldson

Research Collection Lee Kong Chian School Of Business

Researchers examined earnings-forecast revisions and stock returns after release of the Focus List of poorly performing companies by the Council of Institutional Investors. Using Tobin's q as a measure of a company's ability to improve performance, researchers found significant and positive abnormal forecast revisions and post-release stock returns for companies with q greater than one. Findings support the proposition that institutional activism is effective for underperforming companies - but only those companies with the ability to respond to the challenge to improve performance.

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Is A Convertible Bond Call Really Bad News?, Louis H. Ederington, Jeremy C. Goh Jul 2001

Is A Convertible Bond Call Really Bad News?, Louis H. Ederington, Jeremy C. Goh

Research Collection Lee Kong Chian School Of Business

The article tests and rejects the hypothesis that managers call in-the-money convertibles when they view a decline in the value of the firm as likely. Inconsistent with this view, it finds that insiders generally buy equity before conversion-forcing calls. Also, analysts tend to raise their earnings forecasts following a call. There is no evidence that earnings analysts interpret a conversion-forcing call as bad news. Indeed there is evidence that, relative to firms in general, analysts are revising their earnings forecasts upward in the months surrounding conversion-forcing calls. The article concludes that an announcement of a conversion-forcing call of a firm's …

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Recent Advances In Content-Based Video Analysis, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang Jul 2001

Recent Advances In Content-Based Video Analysis, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang

Research Collection School Of Computing and Information Systems

In this paper, we present major issues in video parsing, abstraction, retrieval and semantic analysis. We discuss the success, the difficulties and the expectations in these areas. In addition, we identify important opened problems that can lead to more sophisticated ways of video content analysis. For video parsing, we discuss topics in video partitioning, motion characterization and object segmentation. The success in video parsing, in general, will have a great impact on video representation and retrieval. We present three levels of abstracting video content by scene, keyframe and key object representations. These representation schemes in overall serve as a good …

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Housing Policy, Wealth Formation And The Singapore Economy, Sock-Yong Phang Jul 2001

Housing Policy, Wealth Formation And The Singapore Economy, Sock-Yong Phang

Research Collection School Of Economics

This paper evaluates the contribution of housing policy in Singapore to financial sector development, housing wealth formation and macro-economic performance, both retrospectively and prospectively. It provides an overview of past housing policies and traces the linkages to the financial sector. Housing policy as effected through the Housing and Development Board and the Central Provident Fund (CPF) hampered the development of the commercial housing loans sector and domestic financial markets, but contributed to the overall growth and stability of the housing loans market and associated financial institutions. Housing policy and the trend of housing asset inflation contributed significantly to the formation …

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Gaussian Estimation Of Continuous Time Models Of The Short Term Interest Rate, Jun Yu, Peter C. B. Phillips Jul 2001

Gaussian Estimation Of Continuous Time Models Of The Short Term Interest Rate, Jun Yu, Peter C. B. Phillips

Research Collection School Of Economics

This paper proposes a Gaussian estimator for nonlinear continuous time models of the short term interest rate. The approach is based on a stopping time argument that produces a normalizing transformation facilitating the use of a Gaussian likelihood. A Monte Carlo study shows that the finite sample performance of the proposed procedure offers an improvement over the discrete approximation method proposed by Nowman (1997). An empirical application to U.S. and British interest rates is given.

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What's Law Got To Do With It: Mapping Modern Mediation Movements In Civil And Common Law Jurisdictions, Nadja Alexander Jul 2001

What's Law Got To Do With It: Mapping Modern Mediation Movements In Civil And Common Law Jurisdictions, Nadja Alexander

Research Collection Yong Pung How School Of Law

Context defines mediation and has a direct impact on how it is practised. National legal contexts reveal historically embedded systemic differences that can provide insights into the reasons behind the rapid expansion of mediation in common law jurisdictions, and the comparatively hesitant development of mediation in civil law jurisdictions. In this article I consider the legal and political forces behind the modern mediation movements in Australia and Germany: two countries that represent the common law and the civil law traditions respectively.

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Whose News About Justice? [Review Essay], Mark Findlay Jul 2001

Whose News About Justice? [Review Essay], Mark Findlay

Research Collection Yong Pung How School Of Law

Review of two books: Whose News About Justice? Nicholas Cowdery (2001), Getting Justice Wrong, Allen & Unwin, Sydney, ISBN 1865083224 & Jock Collins, Greg Noble, Scott Poynting & Paul Tabar (2001), Kebabs, Kids, Cops and Crime, Pluto Press, Sydney, ISBN 1864031131.

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Application-Centric Analysis Of Ip-Based Mobility Management Techniques, Archan Misra, Subir Das, Prathima Agrawal Jul 2001

Application-Centric Analysis Of Ip-Based Mobility Management Techniques, Archan Misra, Subir Das, Prathima Agrawal

Research Collection School Of Computing and Information Systems

This paper considers three applications—VoIP, mobile Web access and mobile server-based data transfers—and evaluates the applicability of various IP-based mobility management mechanisms. We first survey the features and characteristics of various IP mobility protocols, such as MIPv4, MIPv6, MIP-RO, SIP, CIP, HAWAII, MIP-RR and IDMP, and then evaluate their utility on an application-specific basis. The diversity in the mobility-related requirements ensures that no single mobility solution is universally applicable. We recommend a hierarchical mobility architecture. The framework uses our Dynamic Mobility Agent (DMA) architecture for managing intra-domain mobility and multiple application-based binding protocols for supporting inter-domain mobility. Thus, we recommend …

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Secure And Private Distribution Of Online Video And Some Related Cryptographic Issues, Feng Bao, Robert H. Deng, Peirong Bao, Yan Guo, Hongjun Wu Jul 2001

Secure And Private Distribution Of Online Video And Some Related Cryptographic Issues, Feng Bao, Robert H. Deng, Peirong Bao, Yan Guo, Hongjun Wu

Research Collection School Of Computing and Information Systems

With the rapid growth of broadband infrastructure, it is thought that the bottleneck for video-on-demand service through Internet is being cleared. However, digital video content protection and consumers privacy protection emerge as new major obstacles. In this paper we propose an online video distribution system with strong content security and privacy protection. We mainly focus on the study of security and privacy problems related to the system. Besides presenting the new system, we intensively discuss some relevant cryptographic issues, such as content protection, private information retrieval, super-speed encryption/decryption for video, and PKC with fast decryption etc. The paper can be …

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Mobile Commerce: Promises, Challenges And Research Agenda, Keng Siau, Ee Peng Lim Jul 2001

Mobile Commerce: Promises, Challenges And Research Agenda, Keng Siau, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Advances in wireless technology increase the number of mobile device users and give pace to the rapid development of e-commerce using these devices. The new type of e-commerce, conducting transactions via mobile terminals, is called mobile commerce. Due to its inherent characteristics such as ubiquity, personalization, flexibility, and dissemination, mobile commerce promises businesses unprecedented market potential, great productivity, and high profitability. This paper presents an overview of mobile commerce development by examining the enabling technologies, the impact of mobile commerce on the business world, and the implications to mobile commerce providers. The paper also provides an agenda for future research …

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The Relationship Of Internal And External Commitment Foci To Objective Job Performance Measures, Mark A. Siders, Gerard George, Ravi Dharwadkar Jun 2001

The Relationship Of Internal And External Commitment Foci To Objective Job Performance Measures, Mark A. Siders, Gerard George, Ravi Dharwadkar

Research Collection Lee Kong Chian School Of Business

Prior research reports of a weak commitment-performance relationship can be attributed to inconsistency in conceptualization and measurement of the constructs. In this study, we differentially relate attitudinal commitment to internal (organization and supervisor) and external (customer) foci to objective measures of job performance. Results suggest that both internal foci are related to organizationally rewarded job performance and that the external focus influences job performance relevant to and rewarded by customers. Implications of these findings are discussed.

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Foreign Country Priorities In The Internationalization Process: A Measure And An Exploratory Test On British Firms, Timothy Adrian Robert Clark, Derek S. Pugh Jun 2001

Foreign Country Priorities In The Internationalization Process: A Measure And An Exploratory Test On British Firms, Timothy Adrian Robert Clark, Derek S. Pugh

Research Collection Lee Kong Chian School Of Business

After a critical analysis of the psychic distance aspect of the Uppsala model of internationalization and empirical studies to test it, this paper proposes a measure to enable comparison between target foreign countries in the priority given them in the internationalization process. An International Priority Index is developed for each target country, and used as the dependent variable in a model to analyze the effects of the independent variables of size of market, affluence of market, geographical distance and cultural distance on foreign country priority choice of home country firms. The measure and the model are given a first test …

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Alternative Corporate Governance Systems In Japanese Firms: Implications For A Shift To Stockholder-Centered Corporate Governance, Toru Yoshikawa, Phillip H. Phan Jun 2001

Alternative Corporate Governance Systems In Japanese Firms: Implications For A Shift To Stockholder-Centered Corporate Governance, Toru Yoshikawa, Phillip H. Phan

Research Collection Lee Kong Chian School Of Business

In Asia, the recent catastrophic decline in regional stock markets, continuing currency crisis and failures of major financial institutions and industrial corporations have increased domestic and international interest in corporate governance. Nowhere is this greater than in Japan where financial institution reform has catapulted this to the fore. Agency theory and institutional theory, together with comparative case examples, are used in a study to derive some propositions on the dynamics of changing corporate governance systems in Japanese firms. The study argues for the co-existence of stakeholder and shareholder-centered corporate governance systems in Japan. This argument has an important implication for …

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An Investigation Of Goodwill Accounting Policy Choice Within A Specific Knowledge Framework, Pearl H. N. Tan Jun 2001

An Investigation Of Goodwill Accounting Policy Choice Within A Specific Knowledge Framework, Pearl H. N. Tan

Research Collection School Of Accountancy

This study, using Singapore data, investigates the relationship between Chief Executive Officers' (CEO) specific knowledge and the accounting method choice on capitalisation of goodwill. International Accounting Standard 22 (1987), applicable in Singapore in 1996, the year of the study, permits a choice between capitalisation with subsequent amortisation and immediate write-off of goodwill to reserves. This study proposes a positive relationship between human capital specificity of CEOs and the recognition of purchased goodwill on the balance sheet. Specific knowledge is unique to firms and is acquired through experience. Given that specialised assets arise from firm-specific circumstances, firm-specific knowledge potentially explains the …

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Mapping 'New' Geographies Of Religion: Politics And Poetics In Modernity, Lily Kong Jun 2001

Mapping 'New' Geographies Of Religion: Politics And Poetics In Modernity, Lily Kong

Research Collection School of Social Sciences

This article reviews geographical research on religion in the 1990s, and highlights work from neighbouring disciplines where relevant. Contrary to views that the field is incoherent, I suggest that much of the literature pays attention to several key themes, particularly, the politics and poetics of religious place, identity and community. I illustrate the key issues, arguments and conceptualizations in these areas, and suggest various ways forward. These 'new' geographies emphasize different sites of religious practice beyond the 'officially sacred'; different sensuous sacred geographies; different religions in different historical and place-specific contexts; different geographical scales of analysis; different constitutions of population …

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Intelligent Island Discourse: Singapore’S Discursive Negotiation With Technology, Alwyn Lim Jun 2001

Intelligent Island Discourse: Singapore’S Discursive Negotiation With Technology, Alwyn Lim

Research Collection School of Social Sciences

The small nation-state of Singapore has increasingly been referred to in the popular media as the Intelligent Island of the future. With significant state investment in the promotion and dissemination of information-communications technology and attendant social ramifications, this has become an area that can no longer be ignored or taken for granted. This article intends to map the conditions of possibility on which Singapore can be conceived of as an Intelligent Island, in situating the role of information technology and Intelligent Island discourse within the discourses of postcoloniality, technocapitalism, late modernity, and globalization. In particular, this article attempts to show …

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Coping With Growth Transitions: The Case Of Chinese Family Businesses In Singapore, Wee-Liang Tan, Siew Tong Fock Jun 2001

Coping With Growth Transitions: The Case Of Chinese Family Businesses In Singapore, Wee-Liang Tan, Siew Tong Fock

Research Collection Lee Kong Chian School Of Business

Families control more than half of the corporations in East Asia. The contribution of family businesses to Asia's economic growth is predicated upon successfully growing their businesses. Many family businesses in East Asia, spanning countries such as Taiwan, Hong Kong, Indonesia, Singapore, and Malaysia, are Chinese owned and managed. Some claim that these businesses will never develop into full-fledged multinational enterprises because of their cultural heritage (Redding, 1990). However, some Chinese family businesses have successfully made the transition.This paper presents an in-depth study of five Chinese family businesses in Singapore that have successfully made the transition in growth and size …

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Neyman's Smooth Test And Its Use In Econometrics, Anil K. Bera, Aurobindo Ghosh Jun 2001

Neyman's Smooth Test And Its Use In Econometrics, Anil K. Bera, Aurobindo Ghosh

Research Collection School Of Economics

The following essay is a reappraisal of the role of the smooth test proposed by Neyman (1937) in the context of current applications in econometrics. We revisit the derivation of the smooth test and put it into the perspective of the existing literature on tests based on probability integral transforms suggested by early pioneers such as R.A.Fisher (1930, 1932) and Karl Pearson (1933, 1934) and the other tests for goodness-of-fit. Our discussion touches data-driven and other methods of testing and inference on the order of the smooth test and the motivation and choice of orthogonal polynomials used by Neyman and …

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Motor Vehicle Taxes As An Environmental Management Instrument: The Case Of Singapore, Ngee-Choon Chia, Sock Yong Phang Jun 2001

Motor Vehicle Taxes As An Environmental Management Instrument: The Case Of Singapore, Ngee-Choon Chia, Sock Yong Phang

Research Collection School Of Economics

Being geographically small, land scarcity poses a potential constraint for economic growth in Singapore. Restraining car ownership and car use through motor vehicle taxes is part of the land-transport policy to ensure smoother traffic flow. This paper analyses the use of motor vehicle taxes in Singapore as an environmental management instrument. It evaluates the effectiveness of ownership and use taxes as instruments to internalise congestion and environment externality. Economic issues relating to the use of such taxes are also highlighted. It concludes that motor vehicle taxes offer Singapore a double dividend.

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Foreign Policy Issues Facing The New Administration: Introduction [Randolph W. Thrower Symposium], Howard Hunter Jun 2001

Foreign Policy Issues Facing The New Administration: Introduction [Randolph W. Thrower Symposium], Howard Hunter

Research Collection Yong Pung How School Of Law

No abstract provided.

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Communication And Shared Reality: Implications For The Psychological Foundations Of Culture, Ivy Yee-Man Lau, Chi-Yue Chiu, Sau-Lai Lee Jun 2001

Communication And Shared Reality: Implications For The Psychological Foundations Of Culture, Ivy Yee-Man Lau, Chi-Yue Chiu, Sau-Lai Lee

Research Collection School of Social Sciences

Lau et al present a conceptualization of the evolution of shared beliefs from individual interactions, focusing on the role of communication. They argue that the reciprocal relationship between shared reality and communication enables the development of systems of social representations at an individual level.

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Genetic Algorithms For Communications Network Design - An Empirical Study Of The Factors That Influence Performance, Hsinghua Chou, G. Premkumar, Chao-Hsien Chu Jun 2001

Genetic Algorithms For Communications Network Design - An Empirical Study Of The Factors That Influence Performance, Hsinghua Chou, G. Premkumar, Chao-Hsien Chu

Research Collection School Of Computing and Information Systems

We explore the use of GAs for solving a network optimization problem, the degree-constrained minimum spanning tree problem. We also examine the impact of encoding, crossover, and mutation on the performance of the GA. A specialized repair heuristic is used to improve performance. An experimental design with 48 cells and ten data points in each cell is used to examine the impact of two encoding methods, three crossover methods, two mutation methods, and four networks of varying node sizes. Two performance measures, solution quality and computation time, are used to evaluate the performance. The results obtained indicate that encoding has …

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Assessors And Use Of Assessment Centre Dimensions: A Fresh Look At A Troubling Issue, Filip Lievens May 2001

Assessors And Use Of Assessment Centre Dimensions: A Fresh Look At A Troubling Issue, Filip Lievens

Research Collection Lee Kong Chian School Of Business

Previous studies on the construct validity of assessment centres have generally produced puzzling results. The premise of this study is that these prior studies were relatively one-sided. Actually, most previous studies were field studies, which typically used the multitrait-multimethod approach to distinguish between two sources of variance (i.e., exercises and dimensions). Therefore, this study aims to shed light on the issue of assessment centre construct validity by addressing substantive and methodological concerns inherent in previous research. In this study, 85 industrial and organizational psychology students and 39 managers rated videotaped assessment centre candidates in three exercises on six dimensions. Results …

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Idmp-Based Fast Handoffs And Paging In Ip-Based Cellular Networks, Archan Misra, Subir Das, Ashutosh Dutta, Sajal K. Das May 2001

Idmp-Based Fast Handoffs And Paging In Ip-Based Cellular Networks, Archan Misra, Subir Das, Ashutosh Dutta, Sajal K. Das

Research Collection School Of Computing and Information Systems

We consider the use of our previously proposed Intra-Domain Mobility Management Protocol (IDMP) in fourth-generation mobile networks. On evaluating the heterogeneous access technologies, cellular layouts, and application characteristics of 4G environments, we realize a need to reduce both handoff latency and the frequency of mobility-related signaling. We first present IDMP's fast intradomain handoff mechanism that uses a duration-limited proactive packet multicasting solution. We quantify the expected buffering requirements of our proposed multicasting scheme for typical 4G network characteristics and compare it with alternative IP-based fast handoff solutions. We also present a paging scheme under IDMP that replicates the current cellular …

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