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The Eu And The Non-Proliferation Of Nuclear Weapons: The Way To Thessaloniki And Beyond, Clara Portela Dec 2003

The Eu And The Non-Proliferation Of Nuclear Weapons: The Way To Thessaloniki And Beyond, Clara Portela

Research Collection School of Social Sciences

This paper discusses EU policies against the proliferation of weapons of mass destruction (WMD). The author states that at the beginning of the century, the EU began taking steps against the spread of nuclear weapons within its Common Foreign and Security Policy (CFSP). In June 2003, the European Council adopted its first draft strategy against the proliferation of WMDs. In order to assess the significance of the strategy, the paper presents and evaluates the Union’s record in the field, reviews the strategy and makes suggestions as to how it can be improved.

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Structuring Lecture Videos For Distance Learning Applications, Chong-Wah Ngo, Feng Wang, Ting-Chuen Pong Dec 2003

Structuring Lecture Videos For Distance Learning Applications, Chong-Wah Ngo, Feng Wang, Ting-Chuen Pong

Research Collection School Of Computing and Information Systems

This paper presents an automatic and novel approach in structuring and indexing lecture videos for distance learning applications. By structuring video content, we can support both topic indexing and semantic querying of multimedia documents. In this paper, our aim is to link the discussion topics extracted from the electronic slides with their associated video and audio segments. Two major techniques in our proposed approach include video text analysis and speech recognition. Initially, a video is partitioned into shots based on slide transitions. For each shot, the embedded video texts are detected, reconstructed and segmented as high-resolution foreground texts for commercial …

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Development Of A Framework For Trust In Mobile Commerce, J. Erickson, Keng Siau Dec 2003

Development Of A Framework For Trust In Mobile Commerce, J. Erickson, Keng Siau

Research Collection School Of Computing and Information Systems

Mobile commerce represents a significant development in e-commerce. Despite the potential of mobile commerce, trust is a major obstacle in its adoption and development. The focus of this research is to develop a framework to identify the factors influencing trust in mobile commerce and to explain the development of such trust using a means-ends objective network. We utilized the Value- Focused Thinking approach to interview subjects in order to identify their fundamental and means objectives concerning trust in mobile commerce and to construct a means-ends objective network. A trust framework is developed from the means-ends objective network. As one of …

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How Are Social Identities Linked To Self-Conception And Intergroup Orientation? The Moderating Effect Of Implicit Theories, Ying-Yi Hong, Gloria Chan, Chi-Yue Chiu, Rosanna Y. M. Wong, Ian G. Hansen, Sau-Lai Lee, Jennifer Yuk-Yue Tong, Ho-Ying Fu Dec 2003

How Are Social Identities Linked To Self-Conception And Intergroup Orientation? The Moderating Effect Of Implicit Theories, Ying-Yi Hong, Gloria Chan, Chi-Yue Chiu, Rosanna Y. M. Wong, Ian G. Hansen, Sau-Lai Lee, Jennifer Yuk-Yue Tong, Ho-Ying Fu

Research Collection School of Social Sciences

Social identity approaches assume that social identification affects both self-conception and intergroup orientation. The authors contend that such social identification effects are accentuated when people hold a fixed view of human character and attribute immutable dispositions to social groups. To these individuals, social identities are immutable, concrete entities capable of guiding self-conception and intergroup orientation. Social identification effects are attenuated when people hold a malleable view of human character and thus do not view social identities as fixed, concrete entities. The authors tested and found support for this contention in three studies that were conducted in the context of the …

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Xstamps: A Multiversion Timestamps Concurrency Control Protocol For Xml Data, Khin-Myo Win, Wee-Keong Ng, Ee Peng Lim Dec 2003

Xstamps: A Multiversion Timestamps Concurrency Control Protocol For Xml Data, Khin-Myo Win, Wee-Keong Ng, Ee Peng Lim

Research Collection School Of Computing and Information Systems

With the tremendous growth of XML data over the Web, efficient management of such data becomes a new challenge for database community. Several data management solutions, proposed in recent years, extend the capability of traditional database systems to meet the needs of XML data while alternative approaches introduce new generation databases, named as native XML database management systems. Although traditional databases have mature transaction management and concurrency control techniques, there is still a need to tailor techniques for native XML databases in order to deal with distinct characteristics of XML. In this paper, we propose XStamps, a multiversion timestamps concurrency …

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Nurse Rostering Problems: A Bibliographic Survey, Brenda Cheang, Haibing Li, Andrew Lim, Brian Rodrigues Dec 2003

Nurse Rostering Problems: A Bibliographic Survey, Brenda Cheang, Haibing Li, Andrew Lim, Brian Rodrigues

Research Collection Lee Kong Chian School Of Business

Hospitals need to repeatedly produce duty rosters for its nursing staff. The good scheduling of nurses has impact on the quality of health care, the recruitment of nurses, the development of budgets and other nursing functions. The nurse rostering problem (NRP) has been the subject of much study. This paper presents a brief overview, in the form of a bibliographic survey, of the many models and methodologies available to solve the NRP.

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The Performance Implications Of Ownership Driven Governance Reform, Toru Yoshikawa, Phillip H. Phan Dec 2003

The Performance Implications Of Ownership Driven Governance Reform, Toru Yoshikawa, Phillip H. Phan

Research Collection Lee Kong Chian School Of Business

This paper explores the performance impact of recent changes in foreign shareholdings and boardroom reforms in Japan. Empirical research on the impact of reform on the Japanese corporate governance system could provide useful lessons for their European counterparts who are themselves facing similar pressures to reform. We found that although participation of outside directors in strategic decision-making was associated with positive stock returns, the increase in the ratio of outside directors, the separation of the board members and executive officers, and the reduction of board size were not related to firm performance.

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Displaying Group Cohesiveness: Humour And Laughter In The Public Lectures Of Management Gurus, David Greatbatch, Timothy Adrian Robert Clark Dec 2003

Displaying Group Cohesiveness: Humour And Laughter In The Public Lectures Of Management Gurus, David Greatbatch, Timothy Adrian Robert Clark

Research Collection Lee Kong Chian School Of Business

As perhaps the highest profile group of management speakers in the world, so-called management gurus use their appearances on the international management lecture circuit todisseminate their ideas and to build their personal reputations with audiences of managers. This article examines the use of humour by management gurus during these public performances. Focusing on video recordings of lectures conducted by four leading management gurus (Tom Peters, Rosabeth Moss Kanter, Peter Senge and Gary Hamel), the article explicates the verbal and nonverbal practices that the gurus use when they evoke audience laughter. These practices allow the gurus to project clear message completion …

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The Arms Trade In Russian-Chinese Relations: Identity, Domestic Politics, And Geopolitical Positioning, Robert H. Donaldson, John A. Donaldson Dec 2003

The Arms Trade In Russian-Chinese Relations: Identity, Domestic Politics, And Geopolitical Positioning, Robert H. Donaldson, John A. Donaldson

Research Collection School of Social Sciences

Why would a declining power help arm a neighboring and once-hostile rising power? Current international relations literature cannot explain relationships in which one powerful country contributes directly to its long-term relative decline in order to make smaller, short-term gains. This study focuses on one example, the Treaty on Good Neighborly Friendship and Cooperation between the Russian Federation and the People's Republic of China, signed in Moscow on July 16, 2001. Presenting evidence that this alliance embodies a relationship that is based primarily on sales of arms from Russia to China, the authors argue that this association cannot be explained by …

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Political Implications Of Confucian Familism, Antonio Rappa, Sor-Hoon Tan Dec 2003

Political Implications Of Confucian Familism, Antonio Rappa, Sor-Hoon Tan

Research Collection School of Social Sciences

The family could be mobilized as a political resource for economic ‘development’. What kind of family would be compatible with a knowledge-based economy? We argue that authoritarian Confucian familism is incompatible with the knowledge-based economy; but it is possible to construct a different model of the ideal Confucian family which will be compatible with such an economy: a family ideal that emphasizes internal strengths of relationships rather than building barriers to keep out ‘undesirable influences’, that advocates a respect for authority that is authoritative rather than authoritarian.

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Assessing The Relative Informativeness And Permanence Of Pro Forma Earnings And Gaap Operating Earnings, Nilabhra Bhattacharya, Erv Black, Ted Christensen, Chad Larson Dec 2003

Assessing The Relative Informativeness And Permanence Of Pro Forma Earnings And Gaap Operating Earnings, Nilabhra Bhattacharya, Erv Black, Ted Christensen, Chad Larson

Research Collection School Of Accountancy

This study investigates whether market participants perceive pro forma earnings to be more informative and more persistent than GAAP operating income by analyzing a sample of 1,149 actual pro forma press releases. We find that pro forma announcers report frequent GAAP losses and are mostly concentrated in the service and high-tech industries. Our analyses of short-window abnormal returns and revisions in analysts’ one-quarter-ahead earnings forecasts indicate that pro forma earnings are more informative and more permanent than GAAP operating earnings. Our evidence suggests that market participants believe pro forma earnings are more representative of “core earnings” than GAAP operating income.

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Moorean Absurdity, Knowledge And Iterated Belief, John N. Williams Dec 2003

Moorean Absurdity, Knowledge And Iterated Belief, John N. Williams

Research Collection School of Social Sciences

No abstract provided.

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A Fit-Gap Analysis Of E-Business Curricula Vs. Industry Need, S. Davis, Keng Siau, K. Dhenuvakonda Dec 2003

A Fit-Gap Analysis Of E-Business Curricula Vs. Industry Need, S. Davis, Keng Siau, K. Dhenuvakonda

Research Collection School Of Computing and Information Systems

The alignment of e-business academic programs with the e-business market is examined using a fit-gap analysis. Two high-end business schools, ranked independently by US News and Business Week, were chosen as sample. A total of 391 different e-commerce courses were identified, which were classified into 24 categories. Out of these, there are two broad and distinct tracks in e-business curricula, with one track paving the way for an e-business career with a prevailing focus on the business aspect and the other track leading to a career focusing on technology and Web-based systems development. Industry demand for e-business professionals and the …

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Creating A Virtual Store Image, P. Katerattanakul, Keng Siau Dec 2003

Creating A Virtual Store Image, P. Katerattanakul, Keng Siau

Research Collection School Of Computing and Information Systems

A study was conducted to describe some of the factors that needed to be considered for a virtual store. It was revealed that the growth of e-commerce and online businesses has made it essential to understand the critical attributes of image for a virtual store. Store image was described as the way in which the store was defined by customers and several studies. The study compiled 77 designs and features into a list used to construct a survey. Four hundred and twenty-seven potential customers were requested to rate the significance of each item on the list. The information gathered identified …

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Score Tests For Inverse Gaussian Mixture, Zhenlin Yang Dec 2003

Score Tests For Inverse Gaussian Mixture, Zhenlin Yang

Research Collection School Of Economics

The mixed inverse Gaussian given by Whitmore (Scand. J. Statist., 13, 1986, 211–220) provides a convenient way for testing the goodness-of-fit of a pure inverse Gaussian distribution. The test is a one-sided score test with the null hypothesis being the pure inverse Gaussian (i.e. the mixing parameter is zero) and the alternative a mixture. We devise a simple score test and study its finite sample properties. Monte Carlo results show that it compares favourably with the smooth test of Ducharme (Test, 10, 2001, 271-290). In practical applications, when the pure inverse Gaussian distribution is rejected, one is interested in making …

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Information Recovery In A Study With Surrogate Endpoints, Song Xi Chen, Denis H. Y. Leung, Jing Qin Dec 2003

Information Recovery In A Study With Surrogate Endpoints, Song Xi Chen, Denis H. Y. Leung, Jing Qin

Research Collection School Of Economics

Recently, there has been a lot of interest in statistical methods for analyzing data with surrogate endpoints. In this article, we consider parameter estimation from a model that relates a variable Y to a set of covariates, X, in the presence of a surrogate, S. We assume that the data are made up of two random samples from the population, a validation set where (Y, X, S) are observed on every subject and a nonvalidation set where only (X, S) are measured. We show how information from the nonvalidation set can be incorporated to improve upon estimation of a parameter …

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Optimum Currency Area In Europe: An Alternative Evaluation, Yoonbai Kim, Hwee Kwan Chow Dec 2003

Optimum Currency Area In Europe: An Alternative Evaluation, Yoonbai Kim, Hwee Kwan Chow

Research Collection School Of Economics

In this paper we explore an alternative scheme to assess the suitability of adopting a common currency by Western European countries. It is based on the role of common regional shocks in the determination of output. The results show that the OCA theory well explains and predicts participation decisions in EMU. We also find that our OCA index is highly consistent with two popular schemes that have been introduced by Bayoumi and Eichengreen.

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The Impacts Of Hong Kong's Currency Board Reforms On Its Interbank Market, Yiu Kuen Tse, Paul S. L. Yip Dec 2003

The Impacts Of Hong Kong's Currency Board Reforms On Its Interbank Market, Yiu Kuen Tse, Paul S. L. Yip

Research Collection School Of Economics

Among the economies with a Currency Board System (CBS), Hong Kong (HK) is probably the one with the largest and most developed financial sector, as well as the highest capital mobility. Hence, studying HK’s CBS is not only crucial to HK, but also important for the understanding of the modern CBS. This paper outlines the major monetary reforms in HK since the late 1980s. The impacts of these reforms and the 1997–1998 Asian Financial Crisis are then examined empirically. We focus on the differentials between the US and HK interbank interest rates. We assume the conditional-mean equation follows an autoregressive …

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Fiducial Predictive Densities And Econometric Duration Analysis, Zhenlin Yang Dec 2003

Fiducial Predictive Densities And Econometric Duration Analysis, Zhenlin Yang

Research Collection School Of Economics

In this article, we propose using fiducial predictive density (FPD) as a density estimate, which leads naturally to estimators of survivor and hazard functions and provides a simple way of constructing shortest prediction intervals. This approach is studied in detail in the context of two flexible duration models proposed in this paper, namely the trans-normal and trans-exponential families, by presenting the FPDs, their basic properties, their Bayesian correspondence and their applications in econometric duration analysis. Empirical evidences show that the FPD method provides better estimates of survivor and hazard functions, particularly the latter, than does the usual maximum likelihood method. …

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Predicting Nonlinear Network Traffic Using Fuzzy Neural Network, Zhaoxia Wang, Tingzhu Hao, Zengqiang Chen, Zhuzhi Yuan Dec 2003

Predicting Nonlinear Network Traffic Using Fuzzy Neural Network, Zhaoxia Wang, Tingzhu Hao, Zengqiang Chen, Zhuzhi Yuan

Research Collection School Of Computing and Information Systems

Network traffic is a complex and nonlinear process, which is significantly affected by immeasurable parameters and variables. This paper addresses the use of the five-layer fuzzy neural network (FNN) for predicting the nonlinear network traffic. The structure of this system is introduced in detail. Through training the FNN using back-propagation algorithm with inertia] terms the traffic series can be well predicted by this FNN system. We analyze the performance of the FNN in terms of prediction ability as compared with solely neural network. The simulation demonstrates that the proposed FNN is superior to the solely neural network systems. In addition, …

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Performance Of High And Low Book-To-Market Stocks With Strong Financial Signals: Evidence In Asia Markets 1991-2002, Choong Seok Joseph Kang, Kuan Yong David Ding Dec 2003

Performance Of High And Low Book-To-Market Stocks With Strong Financial Signals: Evidence In Asia Markets 1991-2002, Choong Seok Joseph Kang, Kuan Yong David Ding

Research Collection Lee Kong Chian School Of Business

Motivated by striking findings in recent US studies on return enhancing role in financial signals, we examine in the context of Asian stock markets if we can improve one- and two-year returns of high and low book-to-market (BTM) portfolios by retaining in the portfolios only the stocks whose current accounting/financial information indicates strong financial performance in the prior year. We find that doing so can substantially improve the future returns of such portfolios in all markets except Malaysia. We also find that a zero-investment winner-loser strategy on high BTM stocks (a strategy of longing the value stocks with strong financial …

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Measuring Attraction To Organizations, Scott Highhouse, Filip Lievens, Evan F. Sinar Dec 2003

Measuring Attraction To Organizations, Scott Highhouse, Filip Lievens, Evan F. Sinar

Research Collection Lee Kong Chian School Of Business

Organizational attraction measures are commonly used as surrogate assessments of organizational pursuit. Despite the range in content often encompassed by such instruments, no research has systematically examined the assumptions underlying their use. The authors address this issue by empirically distinguishing items assessing attractiveness, prestige, and behavioral intentions and by modeling their effects on organization pursuit. Undergraduates (N = 305) were randomly assigned to recruitment literature from one of five well-known companies and were asked to respond to a series of items commonly used in past research. Analyses of the item responses suggested that three components of organizational attraction can be …

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To Pester Or Leave Alone: Lifetime Value Maximization Through Optimal Communication Timing, Xavier Dreze, Andre Bonfrer Dec 2003

To Pester Or Leave Alone: Lifetime Value Maximization Through Optimal Communication Timing, Xavier Dreze, Andre Bonfrer

Research Collection Lee Kong Chian School Of Business

The marketing literature has long acknowledged the importance of a customer’s lifetime value in customer relationship management. More recently, researchers have turned their attention to the links between satisfaction and both customer acquisition and retention strategies. In this paper, we are interested in understanding the impact of communication frequency on customer retention and ultimately on lifetime value. We develop a theoretical framework for managing a customer database and addressing the tradeoffs between value extraction and customer retention. An empirical application of this framework is conducted for permission-based email marketing in the entertainment industry. This application recognizes the customization ability underlying …

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Modularity And The Product Lifecycle, Peter Cebon, Oscar Hauptman, Chander Shekhar Dec 2003

Modularity And The Product Lifecycle, Peter Cebon, Oscar Hauptman, Chander Shekhar

Research Collection Lee Kong Chian School Of Business

Product lifecycle theory, which underlies theories of technical innovation in economics, strategy, marketing, and operations management, is based implicitly on the assumption that products are integrated wholes. The modularization of products undermines the specific synergies which drive the product lifecycle, and this undermining has impacts spanning from the structure of individual organizations to the structure of economies and the definition of industries.

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The Law And The Elderly In Singapore: The Law On Income And Maintenance For The Elderly, Locknie Hsu Dec 2003

The Law And The Elderly In Singapore: The Law On Income And Maintenance For The Elderly, Locknie Hsu

Research Collection Yong Pung How School Of Law

By 2030, Singapore's elderly will make up a staggering 19% of the population. With such a large proportion of people becoming old, it is timely to pay some attention to the broad spectrum of legal issues surrounding elder. Several sociological and statistical studies have been done on the elderly Singapore, yet relatively little has been written on the law relating to them. Much of the present legislation which directly or indirectly addresses problems of the elderly in Singapore relate to their financial arrangements. Examples of these are provisions relating to withdrawal of Central Provident Fund (CPF) monies and the age …

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The Structure Of Affect: Reconsidering The Relationship Between Negative And Positive Affectivity, Russell Cropanzano, Howard M. Weiss, Jeff M. S. Hale, Jochen Reb Dec 2003

The Structure Of Affect: Reconsidering The Relationship Between Negative And Positive Affectivity, Russell Cropanzano, Howard M. Weiss, Jeff M. S. Hale, Jochen Reb

Research Collection Lee Kong Chian School Of Business

During the past decade organizational scientists have devoted considerable research attention to the topic of workplace affect. Despite important advances, continued progress depends on a better understanding of the structure of affective experience. The goal of this paper is to review progress to date. In particular, we review evidence pertaining to four constructs that have been widely used to organize research on affect: positive affectivity, negative affectivity, hedonic tone, and affect intensity. We review various structural models pertaining to these four constructs, devoting special attention to integrative frameworks and future research needs. Corresponding au

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Larger Issues At Stake In Unnatural Sex Debate, Seow Hon Tan Nov 2003

Larger Issues At Stake In Unnatural Sex Debate, Seow Hon Tan

Research Collection Yong Pung How School Of Law

The recent debate about the criminal prohibition of oral sex provides an occasion for considering larger, related issues. However prevalent the practice of oral sex and however archaic Section 377 of the Penal Code seems to those pushing for its repeal, the arguments offered have tended to take a piecemeal approach and display an ignorance of or disregard for the larger interests at stake.

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Aa Flexible And Scalable Authentication Scheme For Jpeg 2000 Image Codestreams, Cheng Peng, Robert H. Deng, Yongdong Wu, Weizhong Shao Nov 2003

Aa Flexible And Scalable Authentication Scheme For Jpeg 2000 Image Codestreams, Cheng Peng, Robert H. Deng, Yongdong Wu, Weizhong Shao

Research Collection School Of Computing and Information Systems

JPEG2000 is an emerging standard for still image compression and is becoming the solution of choice for many digital imaging fields and applications. An important aspect of JPEG2000 is its "compress once, decompress many ways" property [1], i. e., it allows extraction of various sub-images (e.g., images with various resolutions, pixel fidelities, tiles and components) all from a single compressed image codestream. In this paper, we present a flexible and scalable authentication scheme for JPEG2000 images based on the Merkle hash tree and digital signature. Our scheme is fully compatible with JPEG2000 and possesses a "sign once, verify many ways" …

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Apparatus For Discovering Computing Services Architecture And Developing Patterns Of Computing Services And Method Therefor [Sg 107499], Emarson Victoria, Hui Tseng, Hwee Hwa Pang, Tau Chen Cham, Siew Choo Tay Nov 2003

Apparatus For Discovering Computing Services Architecture And Developing Patterns Of Computing Services And Method Therefor [Sg 107499], Emarson Victoria, Hui Tseng, Hwee Hwa Pang, Tau Chen Cham, Siew Choo Tay

Research Collection School Of Computing and Information Systems

An apparatus for discovering computing services architecture and developing patterns of computing services and method therefor are disclosed. The apparatus, according to an embodiment of the invention, provides a graphical user interface for displaying a deployment plan of deployed computing services. Components in the deployment plan are interconnected by links indicating dependency relationships between the components. Each component and link is assigned a confidence value, which is based on a calculated weight of the properties of each component. The apparatus further provides editing tools for manipulating the components in the deployment plan as well as for creating and managing patterns.

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Issue Definition And The Opinion-Policy Link: Public Preferences And Health Care Spending In The Us And Uk, Stuart N. Soroka, Elvin T. Lim Nov 2003

Issue Definition And The Opinion-Policy Link: Public Preferences And Health Care Spending In The Us And Uk, Stuart N. Soroka, Elvin T. Lim

Research Collection School of Social Sciences

This article explores the extent to which yearly changes in health spending reflect yearly changes in public preferences. Time series modelling suggests that health care spending is remarkably more responsive to yearly changes in public opinion in the US than in the UK.A content analysis of party manifestos suggests the significant role of ‘issue definition’ in accounting for this difference. Health care issues in the US have more often been viewed as problems of expenditure, while UK policy-makers have tended to focus on efficiency. Results suggest that the responsiveness of health care expenditures to public preferences in the US and …

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