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An Evaluation Of Hedge Funds: Risk, Return And Pitfalls, Francis Koh, David K. C. Lee, Kok Fai Phoon Apr 2002

An Evaluation Of Hedge Funds: Risk, Return And Pitfalls, Francis Koh, David K. C. Lee, Kok Fai Phoon

Research Collection Lee Kong Chian School Of Business

Hedge funds are collective investment vehicles fast becoming popular with high net worth individuals as well as institutional investors. These are funds that are often established with a special legal status that allows their investment managers a free hand to use derivatives, short sell and exploit leverage to raise returns and cushion risk. Given that they have substantial latitude to invest, it is instructive to examine the performance of hedge funds as compared to other forms of managed funds. This paper provides an overview of hedge funds and discusses their empirical risk and return profiles. It also poses some concerns …

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A New Approach For Weighted Constraint Satisfaction, Hoong Chuin Lau Apr 2002

A New Approach For Weighted Constraint Satisfaction, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

We consider the Weighted Constraint Satisfaction Problem which is an important problem in Artificial Intelligence. Given a set of variables, their domains and a set of constraints between variables, our goal is to obtain an assignment of the variables to domain values such that the weighted sum of satisfied constraints is maximized. In this paper, we present a new approach based on randomized rounding of semidefinite programming relaxation. Besides having provable worst-case bounds for domain sizes 2 and 3, our algorithm is simple and efficient in practice, and produces better solutions than some other polynomial-time algorithms such as greedy and …

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Singapore Management University Begins Construction Of City Campus With Groundbreaking Ceremony, Singapore Management University Mar 2002

Singapore Management University Begins Construction Of City Campus With Groundbreaking Ceremony, Singapore Management University

SMU Press Releases and News

No abstract provided.

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An Intelligent Middleware For Linear Correlation Discovery, Cecil Chua, Roger Hsiang-Li Chiang, Ee Peng Lim Mar 2002

An Intelligent Middleware For Linear Correlation Discovery, Cecil Chua, Roger Hsiang-Li Chiang, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Although it is widely accepted that research from data mining, knowledge discovery, and data warehousing should be synthesized, little research addresses the integration of existing data management and analysis software. We develop an intelligent middleware that facilitates linear correlation discovery, the discovery of associations between attributes and attribute groups. This middleware integrates data management and data analysis tools to improve traditional data analysis in three perspectives: (1) identify appropriate linear correlation functions to perform based on the semantics of a data set; (2) execute appropriate functions contained in the data analysis packages; and (3) derive useful knowledge from data analysis.

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Idmp-Based Fast Handoffs And Paging In Ip-Based 4g Mobile Networks, Archan Misra, Subir Das, Anthony Mcauley, Sajal K. Das Mar 2002

Idmp-Based Fast Handoffs And Paging In Ip-Based 4g Mobile Networks, Archan Misra, Subir Das, Anthony Mcauley, 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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The Endogeneity Problem In Electoral Studies: A Critical Re-Examination Of Duverger's Mechanical Effect, Kenneth Benoit Mar 2002

The Endogeneity Problem In Electoral Studies: A Critical Re-Examination Of Duverger's Mechanical Effect, Kenneth Benoit

Research Collection School of Social Sciences

Studies of electoral law consequences typically treat electoral laws as exogenous factors affecting political party systems, even while acknowledging that political parties often tailor electoral institutions to suit their own distributional needs. This study represents a departure from that approach, directly examining one aspect of the endogeneity of electoral systems: the endogeneity of Duverger's ‘mechanical’ effect. Theory clearly posits that the Duvergerian ‘psychological’ effect of electoral rules occurs in anticipation of their reductive mechanical effect, yet in empirical models this endogenous character is typically ignored. In this paper I formalize the two types of Duvergerian effects of electoral laws in …

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Plate Vibration Under Irregular Internal Supports, Yibao Zhao, G. W. Wei, Y. Xiang Mar 2002

Plate Vibration Under Irregular Internal Supports, Yibao Zhao, G. W. Wei, Y. Xiang

Research Collection Lee Kong Chian School Of Business

This paper studies the problem of plate vibration under complex and irregular internal support conditions. Such a problem has its widely spread industrial applications and has not been addressed in the literature yet, partially due to the numerical difficulties. A novel computational method, discrete singular convolution (DSC), is introduced for solving this problem. The DSC algorithm exhibits controllable accuracy for approximations and shows excellent flexibility in handling complex geometries, boundary conditions and internal support conditions. Convergence and comparison studies are carried out to check the validity and accuracy of the DSC method. Case studies are considered to the combination of …

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Social Entrepreneurship In Singapore (German Version), Wee Liang Tan, Teck Meng Tan Mar 2002

Social Entrepreneurship In Singapore (German Version), Wee Liang Tan, Teck Meng Tan

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Endogenous Growth And The Manufacturing Revolution, Hing-Man Leung Mar 2002

Endogenous Growth And The Manufacturing Revolution, Hing-Man Leung

Research Collection School Of Economics

Manufacturing is undergoing a revolution. Teamwork, job-rotation, multitasking are superseding the Taylorist mode of organization. The skilled workforce, armed with automated machines, is gradually substituting and replacing the unskilled. At the same time the U.S. economy is experiencing record breaking growth. Is faster growth a consequence of this manufacturing revolution? We study this by inserting dynamic career choice into endogenous growth by human capital accumulation. The answer is affirmative: The gradual substitution of the unskilled by the skilled boosts the long-term growth trend. The model also explains worsening wage inequality between as well as within the skilled groups.

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Technology Selection And Commitment In New Product Development: The Role Of Uncertainty And Design Flexibility, V. Krishnan, Shantanu Bhattacharya Mar 2002

Technology Selection And Commitment In New Product Development: The Role Of Uncertainty And Design Flexibility, V. Krishnan, Shantanu Bhattacharya

Research Collection Lee Kong Chian School Of Business

Selecting the right technologies to incorporate in new products is a particularly challenging aspect of new product definition and development. While newer advanced technologies may offer improved performance, they also make the product development process more risky and challenging. In this paper, we focus on the problem of technology selection and commitment under uncertainty, a major challenge to firms in turbulent environments. We argue that the ''pizza-bin'' approach of rejecting prospective technologies outright may not serve firms well when the pressure to differentiate products is enormous. After motivating the challenges and decisions facing firms using a real-life application from Dell …

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Mrpc: Maximizing Network Lifetime For Reliable Routing In Wireless Environments, Archan Misra, Suman Banerjee Mar 2002

Mrpc: Maximizing Network Lifetime For Reliable Routing In Wireless Environments, Archan Misra, Suman Banerjee

Research Collection School Of Computing and Information Systems

We propose MRPC, a new power-aware routing algorithm for energy-efficient routing that increases the operational lifetime of multi-hop wireless networks. In contrast to conventional power-aware algorithms, MRPC identifies the capacity of a node not just by its residual battery energy, but also by the expected energy spent in reliably forwarding a packet over a specific link. Such a formulation better captures scenarios where link transmission costs also depend on physical distances between nodes and the link error rates. Using a max-min formulation, MRPC selects the path that has the largest packet capacity at the 'critical' node (the one with the …

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B2b E-Commerce Revisited: Leading Perspectives On The Key Issues And Research Directions, Qizhi Dai, Robert J. Kauffman Mar 2002

B2b E-Commerce Revisited: Leading Perspectives On The Key Issues And Research Directions, Qizhi Dai, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

The application of Internet technologies for the conduct of interfirm business transactions has given rise to a boom in business-to-business (B2B) electronic commerce. Yet, although there are many success stories that have been reported over the past several years, the progress of B2B e-commerce has been hindered by unanticipated technical, organizational, economic and legal challenges that diminish value. In this article, we report on a series of interviews with leading academic researchers and industry senior managers who are in a unique position to make sense of key issues and offer useful insights. The respondents provide their views on the efficacy …

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Smil Vs Mpeg-4 Bifs, Lai-Tee Cheok, Alexandros Eleftheriadis Feb 2002

Smil Vs Mpeg-4 Bifs, Lai-Tee Cheok, Alexandros Eleftheriadis

Research Collection School Of Computing and Information Systems

We present the results of a comparative analysis between the Synchronized Multimedia Integration Language (SMIL) and MPEG-4 BInary Format for Scenes (BIFS). SMIL is a language developed by the W3C consortium for expressing media synchronization among objects of various media types. MPEG-4 BIFS is the scene description scheme of MPEG-4, an international standard for communicating interactive audiovisual scenes. They are both facilities for representing and synchronizing multimedia content, and have a wide range of support for interactivity, animation and object composition features, etc. We compare their scope and purposes, the level of support for the multimedia features and investigate the …

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Experimenting With Server-Aided Signatures, Xuhua Ding, D. Mozzacchi, Gene Tsudik Feb 2002

Experimenting With Server-Aided Signatures, Xuhua Ding, D. Mozzacchi, Gene Tsudik

Research Collection School Of Computing and Information Systems

This paper explores practical and conceptual implications of using Server-Aided Signatures (SAS). SAS is a signature method that relies on partiallytrusted servers for generating public key signatures for regular users. Besides its two primary goals of 1) aiding small, resource-limited devices in computing heavy-weight (normally expensive) digital signatures and 2) fast certificate revocation, SAS also o#ers signature causality and has some interesting features such as built-in attack detection for users and DoS resistance for servers.

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French Military Policies In The Aftermath Of The Yên Bay Mutiny, 1930: Old Security Dilemmas Return To The Surface, Tobias Frederik Rettig Jan 2002

French Military Policies In The Aftermath Of The Yên Bay Mutiny, 1930: Old Security Dilemmas Return To The Surface, Tobias Frederik Rettig

Research Collection School of Social Sciences

This paper provides a brief summary of the Yên Bay mutiny of 10 February 1930, before examining its links to a wider insurrectionary attempt by the Vietnamese Nationalist Party in parts of Tonkin and the reasons why the attempted insurrection was to begin at Yên Bay but not in other garrison towns. It then places the mutiny in a context in which the use of Vietnamese soldiers in French service was necessary in order to maintain French supremacy as a colonial and protectorate power in French Indo-China. But instead of focusing on the mutiny itself and its causes, the main …

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Component-Based Development Using Uml, L. Zhao, Keng Siau Jan 2002

Component-Based Development Using Uml, L. Zhao, Keng Siau

Research Collection School Of Computing and Information Systems

Component-based software development (CBD) is a potential breakthrough for software engineering. Unified Modeling Language (UML) can potentially facilitate CBD design and modeling. Although many research projects concentrate on the conceptual interrelation of UML and CBD, few incorporate actual component frameworks into the discussion, which is critical for real-world software system design and modeling. This paper reviews component-based development, including the use of UML for modeling CBD. The paper then discusses the means by which UML extension mechanisms can be used to better support the popular component framework -- CORBA. Two other important component frameworks, DCOM and Web Services, are also …

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Anatomy Of A Coupling Query In A Web Warehouse, Sourav S. Bhowmick, Sanjay Kumar Madria, Wee-Keong Ng, Ee Peng Lim Jan 2002

Anatomy Of A Coupling Query In A Web Warehouse, Sourav S. Bhowmick, Sanjay Kumar Madria, Wee-Keong Ng, Ee Peng Lim

Research Collection School Of Computing and Information Systems

To populate a data warehouse specifically designed for Web data, i.e. web warehouse, it is imperative to harness relevant documents from the Web. In this paper, we describe a query mechanism called coupling query to glean relevant Web data in the context of our web warehousing system called Warehouse Of Web Data (WHOWEDA). Coupling query may be used for querying both HTML and XML documents. Some of the important features of our query mechanism are ability to query metadata, content, internal and external (hyperlink) structure of Web documents based on partial knowledge, ability to express constraints on tag attributes and …

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Externalism And Knowledge Of Comparative Content, Yoo Guan Tan Jan 2002

Externalism And Knowledge Of Comparative Content, Yoo Guan Tan

Research Collection School of Social Sciences

Concepts are the constituents of thoughts, which in turn, are the contents of propositional attitudes. They are also what the predicates of our language express. According to a tradition going back to Plato, questions about comparative content – questions of the form Is concept F the same as concept G? – are purely about relations of ideas, and so are answerable a priori. This does not mean that no experience at all is necessary to answer such questions, for experience may be needed to grasp their content. Call a piece of information about Fs extraneous if it is not required …

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Using Real Options Analysis For Evaluating Uncertain Investments In Information Technology: Insights From The Icis 2001 Debate, Paul P. Tallon, Robert J. Kauffman, Henry C. Lucas, Andrew B. Whinston, Kevin Zhu Jan 2002

Using Real Options Analysis For Evaluating Uncertain Investments In Information Technology: Insights From The Icis 2001 Debate, Paul P. Tallon, Robert J. Kauffman, Henry C. Lucas, Andrew B. Whinston, Kevin Zhu

Research Collection School Of Computing and Information Systems

Business and information systems (IS) executives continue to grapple with issues of risk and uncertainty in evaluating investments in information technology (IT). Despite the use of net present value (NPV) and other investment appraisal techniques, executives are often forced to rely on instinct when finalizing IT investment decisions. Recognizing the shortcomings of NPV, real options analysis has been suggested as an alternative approach, one that considers the risks associated with an investment while recognizing the ability of corporations to defer an investment until a later period or to make a partial investment instead. Responding to a growing interest in real …

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Reinventing The Academy Through A Keystone Course On Leadership, Dawn Jeanine Dekle, C. A. E. Chua Jan 2002

Reinventing The Academy Through A Keystone Course On Leadership, Dawn Jeanine Dekle, C. A. E. Chua

Research Collection School of Social Sciences

No abstract provided.

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Small And Medium Enterprises In Singapore And The New Economy, Boon Chye Lee, Wee Liang Tan Jan 2002

Small And Medium Enterprises In Singapore And The New Economy, Boon Chye Lee, Wee Liang Tan

Research Collection Lee Kong Chian School Of Business

From its earliest days as a British outpost, Singapore has relied heavily for its economic survival on its position as an entrepot trading centre. In the first decades after independence in 1965, economic strategy was focused on building infrastructure, attracting foreign direct investment, and export-led growth. The political commitment to openness in both trade and capital — and, more recently, labour — is one of the key features of a strategy that has delivered remarkable returns in terms of the economic well-being of the people of Singapore. Between 1961 and 1996 GDP per capita grew at an average rate of …

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Monitoring Process Variability With Symmetric Control Limits, Zhenlin Yang Jan 2002

Monitoring Process Variability With Symmetric Control Limits, Zhenlin Yang

Research Collection School Of Economics

Control charts for monitoring process variability, such as the R-chart and S-chart, do not have symmetric probability limits as the distribution of the sample variability is not normal. Hence, the usual zone rules can not be applied although it is still desirable to be able to use the information from more than one point in decision making. In this paper, a modified S-chart based on an optimal normalizing transformation of the sample variance is first introduced. The new chart is shown to have approximate symmetric probability limits and hence can be interpreted in the same way as that of a …

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The International And Comparative Criminal Trial Project, Mark Findlay Jan 2002

The International And Comparative Criminal Trial Project, Mark Findlay

Research Collection Yong Pung How School Of Law

The International Criminal Trial Project (ICTP) has been in operation within the Centre for Legal Research (CLR), Nottingham Law school since January 2000. To date the project has succeeded in establishing a global network of scholars researching international and comparative criminal justice. The ICTP examines and compares trial processes and practice in a variety of local, regional and global contexts. The research incorporates particular evaluations of issues and relationships essential to the operation of trial process in different jurisdictions and stages of development. From the focus on the trial the project is producing knowledge about international and comparative criminal justice. …

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Contract Law, Andrew Phang Jan 2002

Contract Law, Andrew Phang

Research Collection Yong Pung How School Of Law

As expected, the number of Singapore cases during the year under review impacting the law of contract is enormous. As I have mentioned in previous reviews, this is due to the fact that the law of contract permeates virtually all areas of the law of obligations – and, on occasion, beyond as well. I will therefore adopt the approach which has been adopted during previous years: which is to focus, in the main, on general principles. There have – as we shall see – been a few cases that are of especial significance. Not surprisingly, given the fact that the …

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Mistake In Contract Law —Two Recent Cases, Andrew Phang Jan 2002

Mistake In Contract Law —Two Recent Cases, Andrew Phang

Research Collection Yong Pung How School Of Law

The doctrine of mistake in contract law has had a chequered history. Indeed, its very existence has been questioned (see, e.g., Slade, (1954) 70 L.Q.R. 385 and Atiyah and Bennion, (1961) 24 M.L.R. 421). But, like a bad penny that will not go away, the doctrine remains stubbornly embedded in the contractual landscape and has in fact witnessed a small revival of sorts in recent years (see, e.g., Clarion Ltd. v. National Provident Institution [2000] 2 All E.R. 265 (noted Phang, (2002) 1 J.O.R. 21)).

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Knowledge Management Mechanisms In E-Commerce: A Study Of Online Retailing And Auction Sites, Fiona Fui-Hoon Nah, Keng Siau, Yuhong Tian, Min Ling Jan 2002

Knowledge Management Mechanisms In E-Commerce: A Study Of Online Retailing And Auction Sites, Fiona Fui-Hoon Nah, Keng Siau, Yuhong Tian, Min Ling

Research Collection School Of Computing and Information Systems

Knowledge management is vital to a company's success in this e-commerce era. Not only has the topic of knowledge management attracted much research attention lately, but the management of customer knowledge is also becoming increasingly important. Despite its significance, few research studies have systematically investigated knowledge management in the e-commerce context. None of the studies we reviewed looked at how knowledge management mechanisms were employed in e-commerce. This research presents a comprehensive analysis of the knowledge management mechanisms employed by 14 e-commerce sites that were rated as being the best by Gomez.com, an independent Internet quality measurement firm. Specifically, we …

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Acceptable Internet Use Policy, Keng Siau, Fiona Fui-Hoon Nah, Limei Teng Jan 2002

Acceptable Internet Use Policy, Keng Siau, Fiona Fui-Hoon Nah, Limei Teng

Research Collection School Of Computing and Information Systems

Surveying use policies of three organizations--- educational institutions, ISPs, and non-ISPs.

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Community Banking In The E-Business Era, Peter Southard, Keng Siau Jan 2002

Community Banking In The E-Business Era, Peter Southard, Keng Siau

Research Collection School Of Computing and Information Systems

This paper reviews how existing and potential uses of Internet technology can generate a competitive advantage for rural community banks. To do so, it offers a framework for analyzing Internet technology investment decisions. Organizations in this segment of the banking industry are often more removed from centers of technology and have traditionally been more conservative in their approaches to information technology (among other things). Banking Associations have developed in the U.S., such as the Independent Bankers Association, to try and help community banks coordinate marketing, legislative, and other issues that they have in common. The use of Internet technology can …

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Enabling Technologies For E-Commerce And Erp Integration, Keng Siau, Jake Messersmith Jan 2002

Enabling Technologies For E-Commerce And Erp Integration, Keng Siau, Jake Messersmith

Research Collection School Of Computing and Information Systems

Focuses on a study which analyzed the enabling technologies for integrating Enterprise Resource Planning (ERP) and e-business. Difficulties in integrating ERP and e-business; Architecture supporting ERP and e-commerce; Model for integrating ERP and e-business.

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Enhancing Profiles For Anomaly Detection Using Time Granularities, Yingjiu Li, Ningning Wu, X. Sean Wang, Sushil Jajodia Jan 2002

Enhancing Profiles For Anomaly Detection Using Time Granularities, Yingjiu Li, Ningning Wu, X. Sean Wang, Sushil Jajodia

Research Collection School Of Computing and Information Systems

Recently, association rules have been used to generate profiles of normal behavior for anomaly detection. However, the time factor (especially in terms of multiple time granularities) has not been utilized extensively in generation of these profiles. In reality, user behavior during different time intervals may be very different. For example, the normal number and duration of FTP connections may vary from working hours to midnight, from business day to weekend or holiday. Furthermore, these variations may depend on the day of the month or the week. This paper proposes to build profiles using temporal association rules in terms of multiple …

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