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Campaign Spending In The Local Government Elections Of 1999, Kenneth Benoit, Michael Marsh Jan 2003

Campaign Spending In The Local Government Elections Of 1999, Kenneth Benoit, Michael Marsh

Research Collection School of Social Sciences

For the first time in Irish electoral history, the 1999 local elections required candidates to publicly declare their campaign expenditures. Drawing on these data, we explore patterns in campaign spending and assess their impact, both on candidate success and on turnout. First, examining the elections contested by 1,838 candidates from 180 local constituencies and 34 councils, we identify both partisan and geographic spending patterns, and examine how well these can be explained as a function of political and demographic variables. Second, we model and estimate the effects of expenditure on individual electoral outcomes. The findings clearly indicate that even at …

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Islam, Democracy And Civil Society, Chandran Kukathas Jan 2003

Islam, Democracy And Civil Society, Chandran Kukathas

Research Collection School of Social Sciences

What is the relationship between Islam, democracy, and civil society? This is thequestion which supplies the topic of this essay, Its purpose, more particularly, is to explore theplace of Islam in the modern world-a world which contemporary writers increasingly try tounderstand by invoking the notions of democracy and civil society. But the occasion for thisexploitation has a more precise origin still. The issue of the place of Islam in the modernworld is raised, more often than not, by writers and commentators for whom Islam is, aboveall, a danger, in geo-political terms, it is a danger to the West; in world-historical …

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The Cultural Contradictions Of Socialism, Chandran Kukathas Jan 2003

The Cultural Contradictions Of Socialism, Chandran Kukathas

Research Collection School of Social Sciences

While no one has yet announced the death of capitalism, reports of its imminent demise have been as numerous as they have been exaggerated. Such reports have usually been bolstered by thoughtful analyses of the fundamental contradictions of capitalism, which was expected to come sliding—if not crashing—down under the weight of its own inconsistencies. Leaving aside Karl Marx's own predictions, twentieth-century analysts as diverse as Joseph Schumpeter, Daniel Bell, and Jurgen Habermas have asserted that the contradictions of capitalism could only mean that its days were numbered. Alas, all that has been established by these analyses is that predictive failure …

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Instance Based Attribute Identification In Database Integration, Ee Peng Lim, Cecil Chua, Roger Hsiang-Li Chiang Jan 2003

Instance Based Attribute Identification In Database Integration, Ee Peng Lim, Cecil Chua, Roger Hsiang-Li Chiang

Research Collection School Of Computing and Information Systems

Most research on attribute identification in database integration has focused on integrating attributes using schema and summary information derived from the attribute values. No research has attempted to fully explore the use of attribute values to perform attribute identification. We propose an attribute identification method that employs schema and summary instance information as well as properties of attributes derived from their instances. Unlike other attribute identification methods that match only single attributes, our method matches attribute groups for integration. Because our attribute identification method fully explores data instances, it can identify corresponding attributes to be integrated even when schema information …

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Independent Review Of The Crimes (Forensic Procedures) Act 2000, Mark Findlay Jan 2003

Independent Review Of The Crimes (Forensic Procedures) Act 2000, Mark Findlay

Research Collection Yong Pung How School Of Law

This Report focuses on the use of forensic procedures in the criminal justice system. It arises out of the requirement under section 122 of the Crimes (Forensic Procedures) Act 2000 (the Act) that the Minister (the Attorney General) review the Act to determine whether the policy objectives of the Act remain valid and whether the terms of the Act remain appropriate for securing those objectives.

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Effects Of Electronic Trading On The Hang Seng Index Futures Market, Joseph Fung, Donald Lien, Yiuman Tse, Yiu Kuen Tse Jan 2003

Effects Of Electronic Trading On The Hang Seng Index Futures Market, Joseph Fung, Donald Lien, Yiuman Tse, Yiu Kuen Tse

Research Collection School Of Economics

This paper investigates the effects of the migration of the Hang Seng Index futures from open-outcry trading to electronic trading. Using trade data over a window of six months we find evidence that, after the migration, the bid-ask spread of the futures contract decreases and the contribution of the futures price in information transmission increases. Furthermore, the asymmetry in volatility spillover reduces and the open interests of the futures market become smaller. These results suggest that the anonymity in trading and the higher speed of order execution in the electronic trading system attract informed traders to the futures market and …

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Exclusion Bias In Sample-Selection Model Estimators, Myoung-Jae Lee Jan 2003

Exclusion Bias In Sample-Selection Model Estimators, Myoung-Jae Lee

Research Collection School Of Economics

Exclusion restrictions are routinely used in sample-selection models with selection and outcome equations. A false restriction, however, can cause an exclusion bias for the outcome equation estimator. In this paper, the specific form of the exclusion bias is derived for various sample-selection model estimators. Furthermore, it is shown that the outcome equation parameters for regressors with zero coefficients in the selection equation are immune to exclusion bias if only one regressor is excluded. Exclusion bias, or a lack thereof, is verified through a simulation study with the regressors taken from Mroz (1987). JEL Classification Numbers: C24, C34. [ABSTRACT FROM AUTHOR]

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Validity And Obligation In Natural Law Theory, Seow Hon Tan Jan 2003

Validity And Obligation In Natural Law Theory, Seow Hon Tan

Research Collection Yong Pung How School Of Law

The relation between law and morality is a point of contention amongst legal philosophers. There are several issues: first, the extent to which law should incorporate moral standards; second, the effect of moral status on legal validity (the "validity question"); third, the effect of legal validity on the obligation created by the law (the "obedience question"). Because most positivists concede that it is desirable for law to accord with notions of justice and morals and that law often incorporates morals, the first issue features less prominently in the positivism-natural law debate. This article examines John Finnis's views on the latter …

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Performance Measurement Framework For Hierarchical Text Classification, Ee Peng Lim, Aixin Sun, Wee-Keong Ng Jan 2003

Performance Measurement Framework For Hierarchical Text Classification, Ee Peng Lim, Aixin Sun, Wee-Keong Ng

Research Collection School Of Computing and Information Systems

Hierarchical text classification or simply hierarchical classification refers to assigning a document to one or more suitable categories from a hierarchical category space. In our literature survey, we have found that the existing hierarchical classification experiments used a variety of measures to evaluate performance. These performance measures often assume independence between categories and do not consider documents misclassified into categories that are similar or not far from the correct categories in the category tree. In this paper, we therefore propose new performance measures for hierarchical classification. The proposed performance measures consist of category similarity measures and distance-based measures that consider …

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On Clustering And Retrieval Of Video Shots Through Temporal Slices Analysis, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang Dec 2002

On Clustering And Retrieval Of Video Shots Through Temporal Slices Analysis, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang

Research Collection School Of Computing and Information Systems

Based on the analysis of temporal slices, we propose novel approaches for clustering and retrieval of video shots. Temporal slices are a set of two-dimensional (2-D) images extracted along the time dimension of an image volume. They encode rich set of visual patterns for similarity measure. In this paper, we first demonstrate that tensor histogram features extracted from temporal slices are suitable for motion retrieval. Subsequently, we integrate both tensor and color histograms for constructing a two-level hierarchical clustering structure. Each cluster in the top level contains shots with similar color while each cluster in bottom level consists of shots …

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Managing Project Uncertainty: From Variation To Chaos, Arnoud De Meyer, Christoph H. Loch, Michael T. Pich Dec 2002

Managing Project Uncertainty: From Variation To Chaos, Arnoud De Meyer, Christoph H. Loch, Michael T. Pich

Research Collection Lee Kong Chian School Of Business

The article cites a study finding that accurately gauging the degree of uncertainty inherent in the projects can help project managers quickly adapt to it. Researchers studied 16 projects in areas including personal-computer development, telecommunications, Internet startups, pharmaceutical development, iron-ore processing, airship development, and building construction, to examine risk management and project outcomes. They found that most managers failed to recognize that there are different types of uncertainty, each requiring a different management approach. This paper explores uncertainty-based management, which derives planning, monitoring and management style from an uncertainty profile comprising four types of uncertainty: variation, foreseen uncertainty, unforeseen uncertainty, …

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Is Ricardo's Essay On Profits A Precursor Of The New Trade Theory?, Hian Teck Hoon Dec 2002

Is Ricardo's Essay On Profits A Precursor Of The New Trade Theory?, Hian Teck Hoon

Research Collection School Of Economics

This paper carefully analyzes a passage of Ricardo’s Essay on Profits ([1815] 1923), which suggests that he clearly understood the effects of both interindustry as well as intraindustry trade. In the context of the Essay model, Ricardo argues that free interindustry trade involving an exchange of manufactures for agricultural good (from England’s point of view) raises the rate of profit through lowering the relative price of the agricultural good. On the other hand, where trade involves simply an exchange of manufactures for manufactures, these being produced under conditions of economies of scale (division of labour in manufactures (pg. 25 of …

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Situational Tests In Student Selection: An Examination Of Predictive Validity, Adverse Impact, And Construct Validity, Filip Lievens, Pol Coetsier Dec 2002

Situational Tests In Student Selection: An Examination Of Predictive Validity, Adverse Impact, And Construct Validity, Filip Lievens, Pol Coetsier

Research Collection Lee Kong Chian School Of Business

The Flemish Admission Exam 'Medical and Dental Studies' is comprised of four cognitive ability tests and four situational tests, namely two work samples (i.e., a lecture and a medical text) and two video-based situational judgement tests (i.e., a physician-patient interaction and a medical expert discussion). On the basis of the Admission Exam scores of 941 candidates (359 men, 582 women) this study shows that situational tests significantly can predict better than cognitive ability tests, with lecture and text emerging as significant predictors. When situational tests are combined with cognitive ability tests, there are no mean gender differences. Situational tests also …

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Like Deja Vu All Over Again: The Hungarian Parliamentary Elections Of 2002, Kenneth Benoit Dec 2002

Like Deja Vu All Over Again: The Hungarian Parliamentary Elections Of 2002, Kenneth Benoit

Research Collection School of Social Sciences

On 7 and 21 April 2002, Hungary went to the polls to vote in its fourth competitive election since the transition to a multi-party system in 1989. Voting took place in two rounds, first on 7 April in 176 single-member districts and 20 proportional list districts, and then on 21 April in a run-off in the 131 single-member districts that had not yielded a majority candidate in the first round. The result was a surprise to nearly everyone. First, surpassing all expectations, turnout exceeded 70 per cent of the registered electorate, higher than in any previous election in Hungary. Second, …

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The Culture Of Technology Of Singapore, Alwyn Lim Dec 2002

The Culture Of Technology Of Singapore, Alwyn Lim

Research Collection School of Social Sciences

The objective of this paper is to map the sociological context in which the cultural economy of technology of Singapore exists. Taking a socio-histori cal perspective, this paper argues that the development of Singapore as a technological 'intelligent island' must take centre stage in relation to the soci ological analysis of modern Singapore's political, economic, and socio-cultural structure. This involves a critique of theories of the information society and empirical research on East Asian developmental states. The aim is to chart the development of technology in Singapore, from its founding as a colonial port-city to its current status as an …

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A Model Of Industrialization And International Wage Convergence Based On Multi-Plant Foreign Direct Investment, Hian Teck Hoon, Irene Ng Dec 2002

A Model Of Industrialization And International Wage Convergence Based On Multi-Plant Foreign Direct Investment, Hian Teck Hoon, Irene Ng

Research Collection School Of Economics

We show that for industrialization and international wage convergence through multi-plant foreign direct investment (FDI) to occur, the measure of the quality of the social infrastructure in the South relative to that in the North must be at least as large as the South-North wage ratio. We also show that if profitable FDI flows already take place from the North to the most productive economy in the South, then less productive Southern economies can also become recipients of FDI, provided that they are integrated into the world trading system, and there are no impediments to the decline of their wage …

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Residual-Based Diagnostics For Conditional Heteroscedasticity Models, Yiu Kuen Tse Dec 2002

Residual-Based Diagnostics For Conditional Heteroscedasticity Models, Yiu Kuen Tse

Research Collection School Of Economics

We examine the residual–based diagnostics for univariate and multivariate conditional heteroscedasticity models. The tests are based on the parameter estimates of an autoregression with the squared standardized residuals or the cross products of the standardized residuals as dependent variables. As the regression involves estimated regressors the standard distribution theories of the ordinary least squares estimates do not apply. We provide the asymptotic variance of the regression estimates. Diagnostic statistics, which are asymptotically distributed as ?[sup 2], are constructed. A Monte Carlo experiment is conducted to investigate the finite–sample properties of the residual–based tests for both univariate and multivariate models. The …

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Defending Against Redirect Attacks In Mobile Ip, Robert H. Deng, Jianying Zhou, Feng Bao Nov 2002

Defending Against Redirect Attacks In Mobile Ip, Robert H. Deng, Jianying Zhou, Feng Bao

Research Collection School Of Computing and Information Systems

The route optimization operation in Mobile IP Version 6 (MIPv6) allows direct routing from any correspondent node to any mobile node and thus eliminates the problem of "triangle routing" present in the base Mobile IP Version 4 (MIPv4) protocol. Route optimization, however, requires that a mobile node constantly inform its correspondent nodes about its new care-of addresses by sending them binding update messages. Unauthenticated or malicious binding updates open the door for intruders to perform redirect attacks, i.e., malicious acts which redirect traffic from correspondent nodes to locations chosen by intruders. How to protect binding update messages to defend against …

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Medical Students' Personality Characteristics And Academic Performance: A Five-Factor Model Perspective, Filip Lievens, Pol Coetsier, Filip De Fruyt, Jan De Maeseneer Nov 2002

Medical Students' Personality Characteristics And Academic Performance: A Five-Factor Model Perspective, Filip Lievens, Pol Coetsier, Filip De Fruyt, Jan De Maeseneer

Research Collection Lee Kong Chian School Of Business

Objectives: This study investigates: (1) which personality traits are typical of medical students as compared to other students, and (2) which personality traits predict medical student performance in pre-clinical years. Design: This paper reports a cross-sectional inventory study of students in nine academic majors and a prospective longitudinal study of one cohort of medical students assessed by inventory during their first pre-clinical year and by university examination at the end of each pre-clinical year. Subjects and methods: In 1997, a combined total of 785 students entered medical studies courses in five Flemish universities. Of these, 631 (80.4%) completed the NEO-PI-R …

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Predicting Bottleneck Bandwidth Sharing By Generalized Tcp Flows, Archan Misra, Teunis Ott, John Baras Nov 2002

Predicting Bottleneck Bandwidth Sharing By Generalized Tcp Flows, Archan Misra, Teunis Ott, John Baras

Research Collection School Of Computing and Information Systems

The paper presents a technique for computing the individual throughputs and the average queue occupancy when multiple TCP connections share a single bottleneck buffer. The bottleneck buffer is assumed to perform congestion feedback via randomized packet marking or drops. We first present a fixed point-based analytical technique to compute the mean congestion window sizes, the mean queue occupancy and the individual throughputs when the TCP flows perform idealized congestion avoidance. We subsequently extend the technique to analyze the case where TCP flows perform generalized congestion avoidance and demonstrate the use of this technique under the Assured Service model, where each …

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Lay Theories And Evaluation-Based Organization Of Impressions: An Application Of The Memory Search Paradigm, Yuk-Yue Tong, Chi-Yue Chiu Nov 2002

Lay Theories And Evaluation-Based Organization Of Impressions: An Application Of The Memory Search Paradigm, Yuk-Yue Tong, Chi-Yue Chiu

Research Collection School of Social Sciences

People may believe that personal attributes are fixed entities that cannot be changed (hold an entity theory). Alternatively, they may believe that qualities of a person are malleable (hold an incremental theory). In the present research, the authors used Sternberg's (1966) memory search task to examine entity and incremental theorists' cognitive strategies in memory search. It was hypothesized that entity theorists, who have a greater tendency to make spontaneous evaluation of people, would organize impressions in short-term memory according to whether the stimulus persons are positively or negatively evaluated. Next, they might compare the probe only to the stimulus persons …

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Web Classification Using Support Vector Machine, Aixin Sun, Ee Peng Lim Nov 2002

Web Classification Using Support Vector Machine, Aixin Sun, Ee Peng Lim

Research Collection School Of Computing and Information Systems

In web classification, web pages from one or more web sites are assigned to pre-defined categories according to their content. Since web pages are more than just plain text documents, web classification methods have to consider using other context features of web pages, such as hyperlinks and HTML tags. In this paper, we propose the use of Support Vector Machine (SVM) classifiers to classify web pages using both their text and context feature sets. We have experimented our web classification method on the WebKB data set. Compared with earlier Foil-Pilfs method on the same data set, our method has been …

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A Visual Tool For Building Logical Data Models Of Websites, Zehua Liu, Wee-Keong Ng, Feifei Li, Ee Peng Lim Nov 2002

A Visual Tool For Building Logical Data Models Of Websites, Zehua Liu, Wee-Keong Ng, Feifei Li, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Information sources over the WWW contain a large amount of data organized according to different interests and values. Thus, it is important that facilities are there to enable users to extract information of interest in a simple and effective manner. To do this, We propose the Wiccap Data Model, an XML data model that maps Web information sources into commonly perceived logical models, so that information can be extracted automatically according to users' interests. To accelerate the creation of data models, we have implemented a visual tool, called the Mapping Wizard, to facilitate and automate the process of producing Wiccap …

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Knowledge Discovery From Texts: A Concept Frame Graph Approach, Kanagasabai Rajaraman, Ah-Hwee Tan Nov 2002

Knowledge Discovery From Texts: A Concept Frame Graph Approach, Kanagasabai Rajaraman, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

We address the text content mining problem through a concept based framework by constructing a conceptual knowledge base and discovering knowledge therefrom. Defining a novel representation called the Concept Frame Graph (CFG), we propose a learning algorithm for constructing a CFG knowledge base from text documents. An interactive concept map visualization technique is presented for user-guided knowledge discovery from the knowledge base. Through experimental studies on real life documents, we observe that the proposed approach is promising for mining deeper knowledge.

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Motion-Based Video Representation For Scene Change Detection, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang Nov 2002

Motion-Based Video Representation For Scene Change Detection, Chong-Wah Ngo, Ting-Chuen Pong, Hong-Jiang Zhang

Research Collection School Of Computing and Information Systems

In this paper, we present a new framework to automatically group similar shots into one scene, where a scene is generally referred to as a group of shots taken place in the same site. Two major components in this framework are based on the motion characterization and background segmentation. The former component leads to an effective video representation scheme by adaptively selecting and forming keyframes. The later is considered novel in that background reconstruction is incorporated into the detection of scene change. These two components, combined with the color histogram intersection, establish our basic concept on assessing the similarity of …

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Tax Cuts, Employment And Asset Prices: A Real Intertemporal Model, Hian Teck Hoon, Edmund S. Phelps Nov 2002

Tax Cuts, Employment And Asset Prices: A Real Intertemporal Model, Hian Teck Hoon, Edmund S. Phelps

Research Collection School Of Economics

We determine the effects of a delayed or immediate tax cut with or without a sunset feature in a real customer-market, nonRicardian economy. Our model incorporates both the supply-sider channel, through which reduced wage income taxes stimulate work effort, as well as the Feldstein-Rubin-Summers channel, through which cuts in income tax, in widening the deficit and thus driving up future short real interest rates, has a chilling effect on present and future investment, so reducing growth and employment on that account. After establishing conditions under which fiscal policy is sustainable, we first show that a delayed tax cut may depress …

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A Corrected Plug-In Method For The Quantile Confidence Interval Of A Transformed Regression, Zhenlin Yang, Yiu Kuen Tse Nov 2002

A Corrected Plug-In Method For The Quantile Confidence Interval Of A Transformed Regression, Zhenlin Yang, Yiu Kuen Tse

Research Collection School Of Economics

In this paper we propose an analytically corrected plug-in method for constructing confidence intervals of the conditional quantiles of a response variable with data transformation. The method can be applied to (i) a general conditional regression quantile, (ii) a general monotonic transformation, and (iii) a transformation model with heteroscedastic errors. Our results extend those in Yang (2002a), in which the median of a response variable under the Box-Cox transformation with homoscedastic errors was considered. A Monte Carlo experiment is conducted to compare the performance of the corrected plug-in method, the plug-in method and the delta method. The corrected plug-in method …

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Investigating The Effects Of Store-Brand Introduction On Retailer Demand And Pricing Behavior, Pradeep K. Chintagunta, Andre Bonfrer, Inseong Song Oct 2002

Investigating The Effects Of Store-Brand Introduction On Retailer Demand And Pricing Behavior, Pradeep K. Chintagunta, Andre Bonfrer, Inseong Song

Research Collection Lee Kong Chian School Of Business

The effects of the introduction of a store-brand into a particular product category are studied. The paper focuses on the effect of store-brand introduction on the demand as well as on the supply side. On the demand side, the changes in preferences for the national brands and price elasticities in the category are investigated. On the supply side, the effects of the new entrant on the interactions between the national brand manufacturers and the retailer introducing the store brand are studied, including how these interactions influence the retailer's pricing behavior. In doing so, it is possible to test whether the …

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Structural Analysis Of Audit Evidence Using Belief Functions, Hai Lu, Hai Lu Oct 2002

Structural Analysis Of Audit Evidence Using Belief Functions, Hai Lu, Hai Lu

Research Collection School Of Accountancy

This article performs two types of analysis using Dempster-Shafer theory of belief functions for evidential reasoning. The first analysis deals with the impact of the structure of audit evidence on the overall belief at each variable in the network, variables being the account balance to be audited, the related transaction streams, and the associated audit objectives. The second analysis deals with the impact of the relationship (logical "and" and "algebraic relationship") among various variables in the network on the overall belief. For our first analysis, we change the evidential structure from a network to a tree and determine its impact.

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Market Segmentation And Information Values Of Earnings Announcements: Some Empirical Evidence From An Event Study On The Chinese Stock Market, Yu Gao, Yiu Kuen Tse Oct 2002

Market Segmentation And Information Values Of Earnings Announcements: Some Empirical Evidence From An Event Study On The Chinese Stock Market, Yu Gao, Yiu Kuen Tse

Research Collection School Of Economics

This paper investigates the trading activities of two distinct classes of shareholders, namely, the Chinese domestic investors and the foreign investors in the segmented Chinese A-share and B-share markets, respectively. We conduct an event study on the annual earnings announcements based on two different accounting standards: IAS and PRC GAAP. The earnings announcements based on IAS and PRC GAAP are value relevant. The investors in the B-share market react to both the IAS and PRC GAAP earnings announcements, while the investors in the A-share market pay more attention to the PRC GAAP earnings reports. In the B-share market, positive abnormal …

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