Digital Commons Network^™

A Generic Object-Oriented Tabu Search Framework, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Presently, most tabu search designers devise their applications without considering the potential of design and code reuse, which consequently prolong the development of subsequent applications. In this paper, we propose a software solution known as Tabu Search Framework (TSF), which is a generic C++ software framework for tabu search implementation. The framework excels in code recycling through the use of a welldesigned set of generic abstract classes that clearly define their collaborative roles in the algorithm. Additionally, the framework incorporates a centralized process and control mechanism that enhances the search with intelligence. This results in a generic framework that is …

Global Trends In Mediation, Nadja Alexander

Research Collection Yong Pung How School Of Law

Mediation is a process both new, in terms of its emergence in the legal arena, and old in terms of its timeless universality. From its birth in the western world, mediation has travelled a winding and often challenging path through common law and then civil law jurisdictions. Suggestions that mediation would be nothing more than a short-lived fad have been short-lived themselves. At the same time many critical questions about mediation process, mediation structures and environment, and mediation outcomes have yet to be explored from a global and comparative perspective.

Omission Bias In Vaccination Decision: Where's The "Omission"? Where's The "Bias"?, Terry Connolly, Jochen Reb

Research Collection Lee Kong Chian School Of Business

Several studies have reported that parents are often reluctant to vaccinate their own or other people's children, even when the balance of health risks and benefits clearly favors vaccination. This reluctance has been interpreted as a manifestation of omission bias, a general tendency to prefer inactive to active options even when inaction leads to worse outcomes or greater risks. The research raises significant public health concerns as well as worries about human decision biases in general. In this paper we argue that existing research on vaccination decisions has not convincingly demonstrated any general reluctance to vaccinate nor has it made …

Indonesia: Ambling On With The Status Quo, Eugene Kheng Boon Tan

Research Collection Yong Pung How School Of Law

No abstract provided.

Once A Director, Always A Fiduciary?, Pearlie Koh

Research Collection Yong Pung How School Of Law

The corporate director is subject to duties of good faith and loyalty. As he stands in a fiduciary position vis-a-vis the company on whose board he sits, he is subject to strict obligations of self-denial. Indeed, ensuring adherence to an absolute rule in this regard is justified by the need to control, albeit in a necessarily imperfect and arguably ineffective manner, the exercise of discretion by the director who stands in an undoubted position of power with respect to the company. A director therefore is obliged to avoid a conflict of interests and is prohibited from profiting from his office. …

Maturity Effect On Bid-Ask Spreads Of Otc Currency Options, Beng Soon Chong, David K. Ding, Kok Hui Tan

Research Collection Lee Kong Chian School Of Business

The paper ascertains the relation between bid-ask spreads and the contract maturity of OTC currency options. Contrary to previous findings in the futures market, spreads of currency options are found to be negatively related to the contract's term-to-maturity. The negative relation persists even after controlling for the effects of price risks, competition, and trading activity. The pronounced differences in the term-to-maturity results are attributable to the market risk effect and differences in the market structure of options and futures markets.

Creating An Environment For Enterprise: The Singapore Experience In East Asia, Caroline Yeoh, Charmaine Jialing Cai, Chee Sin Koh

Research Collection Lee Kong Chian School Of Business

No abstract provided.

Regionalization And Transborder Industrialization: Singapore's Industrial Parks In China And Vietnam Examined, Caroline Yeoh, Aik Kee Neo, Clare Lee

Research Collection Lee Kong Chian School Of Business

No abstract provided.

What Would You Do - With A Taniwha At The Table?, Ian Macduff

Research Collection Yong Pung How School Of Law

In New Zealand, a complicating factor in some disputes may involve the presence (whether one believes it or not) of a taniwha, or spirit, as a major part of the negotiations. What advice would you have for mediators who face such significant cross-cultural, identity-based issues? The author hopes readers of this journal will be able to provide some insighful advice.

Privacy And Attitudes Towards Internet-Based Selection Systems: A Cross-Cultural Comparison, Michael M. Harris, Greet Van Hoye, Filip Lievens

Research Collection Lee Kong Chian School Of Business

This paper examines perceptions of privacy and how they relate to reluctance to submit employment-related information over the Internet. In addition, possible cross-cultural differences between the US and Belgium regarding these constructs and the role of Internet knowledge are investigated. Based on theories of privacy and cross-cultural differences, a survey methodology was applied to test several hypotheses. Results suggest that privacy considerations may affect reluctance to use an Internet-based selection system. Moreover, as expected, some differences were observed between US and Belgian respondents. Respondents possessing a higher self-rated knowledge of the Internet were less concerned that employment-related data submitted over …

Predicting Cross-Cultural Training Performance: The Validity Of Personality, Cognitive Ability, And Dimensions Measured By An Assessment Center And A Behavior Description Interview, Filip Lievens, Michael M. Harris, Etienne Van Keer, Claire Bisqueret

Research Collection Lee Kong Chian School Of Business

This study examined the validity of a broad set of predictors for selecting European managers for a cross-cultural training program in Japan. The selection procedure assessed cognitive ability, personality, and dimensions measured by assessment center exercises and a behavior description interview. Results show that the factor Openness was significantly related to cross-cultural training performance, whereas. cognitive ability was significantly correlated with language acquisition. The dimensions of adaptability, teamwork, and communication as measured by a group discussion exercise provided incremental variance in both criteria, beyond cognitive ability and personality. In general, these results are consistent with the literature on domestic selection, …

Creating Competitive Advantage In The Global Marketplace: The Singapore Experiment In East Asia, Caroline Yeoh, Julian Ching Wei Wee, James Chan

Research Collection Lee Kong Chian School Of Business

No abstract provided.

The Shapley-Shubik Index, The Donation Paradox And Ternary Games, Vincent C. H. Chua, H. C. Huang

Research Collection School Of Economics

In this paper, we show that although the Shapley-Shubik index is immune to the donation paradox in weighted binary games, extension of the index to ternary games along the direction suggested in Felsenthal and Machover (1996, 1997) will cause it to be vulnerable to the paradox and this is the case as long as the number of players in the game exceeds three. This undermines the attractiveness of the Shapley-Shubik index as a measure of a priori voting power.

Ladar-Based Detection And Tracking Of Moving Objects From A Ground Vehicle At High Speeds, Chieh-Chih Wang, Charles Thorpe, Arne Suppe

Research Collection School Of Computing and Information Systems

Detection and tracking of moving objects (DATMO) in crowded urban areas from a ground vehicle at high speeds is difficult because of a wide variety of targets and uncertain pose estimation from odometry and GPS/DGPS. In this paper we present a solution of the simultaneous localization and mapping (SLAM) with DATMO problem to accomplish this task using ladar sensors and odometry. With a precise pose estimate and a surrounding map from SLAM, moving objects are detected without a priori knowledge of the targets. The interacting multiple model (IMM) estimation algorithm is used for modeling the motion of a moving object …

Cultural And Socioeconomic Influences On Divorce During Modernization: Southeast Asia, 1940s To 1960s, Charles Hirschman, Bussarawan Teerawichitchainan

Research Collection School of Social Sciences

The conventional model of a rising divorce rate during the process of modernization is a staple element of the sociological theory of the family. This generalization is challenged, however, by traditional high-divorce societies, primarily in Islamic Southeast Asia, which have experienced a decline in divorce with modernization. In this study, based on micro-level survey data, the authors explore the social roots of marital disruption in Indonesia and Malaysia and in another Southeast Asian society, Thailand, which has not been identified as a high-divorce society. Comparable survey data from the 1970s (from the World Fertility Survey) allow for an in-depth analysis …

Responsibility For Past Injustice: How To Shift The Burden, Chandran Kukathas

Research Collection School of Social Sciences

This article considers the question of the responsibility of present generations for injustices committed by previous ones. It asks whether the descendants of victims of past injustice have claims against the descendants of the perpetrators of injustice. Two modes of argument are examined: the individual responsibility approach, according to which descendants cannot have claims against other descendants, and the collective responsibility approach, according to which descendants do have strong claims. Both approaches are criticized, but for different failings. An alternative view, building on the individualist approach, is defended. This view argues that some people may have to bear responsibility for …

Modeling Product Development As A System Design Game, C. Jason Woodard

Research Collection School Of Computing and Information Systems

A system design game is a model of a situation in which agents’ actions determine the structure of a system, which in turn affects the system’s value and the share of value that each agent may capture through bargaining or market competition. This paper describes a class of games in which agents design interdependent products, for example software programs, which may be complements or substitutes for each other. These relationships are epresented by an object called a design structure network (DSN). Depending on the modeler’s choice of allocation rules, agents may benefit from owning critical nodes in the DSN, corresponding …

Transborder Industrialization And Singapore's Regionalization Strategy: Singapore's Industrial Parks In Indonesia And China - Boom, Bane Or An Ongoing Game?, Caroline Yeoh, Charmaine Jialing Cai, Julian Ching Wei Wee

Research Collection Lee Kong Chian School Of Business

Singapore’s regionalization program is centred on a number of industrial township developments in China, India and several Southeast Asian countries. These townships are led by Singapore government-linked companies and are premised on the perception that Singapore’s positive reputation with multinational corporations, for efficient industrial infrastructure and stable, corrupt-free administration, will give the townships a marketing advantage. Their progress is a litmus test of Singapore’s ability to export its efficiency in industrial park development and management outside its borders. This paper discusses the origins and progress of the four largest and most advanced townships, two in Indonesia and two in China. …

Asian Hedge Funds: Return Persistence, Style, And Fund Characteristics, Francis Koh, Winston T. H. Koh, Melvyn Teo

Research Collection Lee Kong Chian School Of Business

This study explores the return persistence properties, styles, and fund characteristics of hedge funds that mainly invest in Asia. We examine, for the first time, a high resolution hedge fund dataset which includes monthly return information as well as detailed fund characteristics data. We find that the returns of Asian hedge funds persist most strongly at monthly horizons to quarterly horizons. This persistence weakens considerably when we lengthen the measurement period beyond a quarter, and does not appear to be due to the imputation of fees or to systematic risk as measured by a simple factor model. Further, we show …

Providing Health Care For Older Persons In Singapore, Peggy Teo, Angelique Chan, Paulin Straughan

Research Collection School of Social Sciences

Health care social policy in Singapore has passed the burden of care to the individual and the family on the rationale that it would enable the state to contain the costs of long-term care by channelling some of its funds to community services and to providing essential health services to all Singaporeans and not just the older group. While a wide array of services has come into existence, there is a lack of integration between the available resources and needs of the individual/family and what has been availed at the community and state levels. Part of the problem lies in …

What Is The Social In Social Entrepreneurship?, Wee Liang Tan, John Williams, Teck Meng Tan

Research Collection School Of Accountancy

No abstract provided.

On The Asymptotic Effect Of Substituting Estimators For Nuisance Parameters In Inferential Statistics, Zhenlin Yang, Yiu Kuen Tse, Zhidong Bai

Research Collection School Of Economics

This paper studies the general problem of making inferences for a set of parameters ? in the presence of another set of (nuisance) parameters λ, based on the statistic T(y; ˆλ, θ), where y = {y1, y2, · · · , yn} represents the data, ˆλ is an estimator of λ and the limiting distribution of T(y; λ, θ) is known. We provide general methods for finding the limiting distributions of T(y; ˆλ, θ) when ˆλ is either a constrained estimator (given θ) or an unconstrained estimator. The methods will facilitate hypothesis testing as well as confidence-interval construction. We also …

Using Support Vector Machines For Terrorism Information Extraction, Aixin Sun, Myo-Myo Naing, Ee Peng Lim, Wai Lam

Research Collection School Of Computing and Information Systems

Information extraction (IE) is of great importance in many applications including web intelligence, search engines, text understanding, etc. To extract information from text documents, most IE systems rely on a set of extraction patterns. Each extraction pattern is defined based on the syntactic and/or semantic constraints on the positions of desired entities within natural language sentences. The IE systems also provide a set of pattern templates that determines the kind of syntactic and semantic constraints to be considered. In this paper, we argue that such pattern templates restricts the kind of extraction patterns that can be learned by IE systems. …

Adaptive Filters For Continuous Queries Over Distributed Data Stream, Chris Olston, Jing Jiang, Jennifer Widom

Research Collection School Of Computing and Information Systems

We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Significant communication overhead is incurred in the presence of rapid update streams, and we propose a new technique for reducing the overhead. Users register continuous queries with precision requirements at the central stream processor, which installs filters at remote data sources. The filters adapt to changing conditions to minimize stream rates while guaranteeing that all continuous queries still receive the updates necessary to provide answers of adequate precision at all times. Our approach enables applications to trade …

Strategyproof Mechanisms For Ad Hoc Network Formation, C. Jason Woodard, David C. Parkes

Research Collection School Of Computing and Information Systems

Agents in a peer-to-peer system typically have incentives to influence its network structure, either to reduce their costs or increase their ability to capture value. The problem is compounded when agents can join and leave the system dynamically. This paper proposes three economic mechanisms that offset the incentives for strategic behavior and facilitate the formation of networks with desirable global properties.

Reactions To Perceived Inequity In U.S. And Dutch Interorganizational Relationships, Lisa K. Scheer, Nirmalya Kumar, Jan-Benedict E. M. Steenkamp

Research Collection Lee Kong Chian School Of Business

In an empirical examination of inequity in interorganizational relationships, we found similarities and differences in Dutch and U.S. automobile dealers' reactions to inequity in their relationships with their automobile suppliers. As predicted by equity theory, both positive and negative inequity have detrimental effects on the reactions of Dutch firms. In contrast, U.S. firms do not react negatively to positive inequity; only negative inequity has deleterious effects.

When Does An Idea Become An Innovation? The Role Of Individual And Group Creativity In Videogame Design, Feichin, Ted Tschang

Research Collection Lee Kong Chian School Of Business

In between creativity studies of idea generation and knowledge management studies of the codification and transmission of knowledge are a fuller set of cognitive activities, including problem-solving and creative impulses. This paper examines the case of designers in the US videogame industry to develop a set of frames for determining how their ideas come about, how ideas are transformed in the process of product development, and when different models of organizing innovation are efficacious. It is found that different types of creativity are used in game design, that sometimes the individual is more influential, but that in many cases, the …

The Quality Of Analysts Earnings Forecasts During The Asian Crisis: Evidence From Singapore, Roger Loh, Mujtaba Mian

Research Collection Lee Kong Chian School Of Business

Examines the efficiency of security analysts' earnings forecasts in Singapore. Regression of actual earnings change on forecasted change; Extremism in forecasted change; Impact of business crisis on the quality of earnings forecasts.

Smu: We Are Different [Advertisement], Singapore Management University

SMU Press Releases and News

Cowan is different. He's chosen to study at SMU. Wah Yeow knows the difference. He sees SMU students in action. Steve knows the difference. He heads SMU's School of Information Systems. Su Phin is different. She's an SMU student.

SMU advertisment, featuring Cowan Phan, jumping student, Tan Wah Yeow (KPMG), Steven Miller, Teo Su Phin, jumping student.

Parameter Optimization In The Regularized Shannon's Kernels Of Higher-Order Discrete Singular Convolutions, Wei Xiong, Yibao Zhao, Yun Gu

Research Collection Lee Kong Chian School Of Business

The δ-type discrete singular convolution (DSC) algorithm has recently been proposed and applied to solve kinds of partial differential equations (PDEs). With appropriate parameters, particularly the key parameter r in its regularized Shannon's kernel, the DSC algorithm can be more accurate than the pseudospectral method. However, it was previously selected empirically or under constrained inequalities without optimization. In this paper, we present a new energy-minimization method to optimize r for higher-order DSC algorithms. Objective functions are proposed for the DSC algorithm for numerical differentiators of any differential order with any discrete convolution width. Typical optimal parameters are also shown. The …