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Nation Equity: Incidental Emotions In Country-Of-Origin Effects, Durairaj Maheswaran, Cathy Yi Chen Dec 2006

Nation Equity: Incidental Emotions In Country-Of-Origin Effects, Durairaj Maheswaran, Cathy Yi Chen

Research Collection Lee Kong Chian School Of Business

Different from past research on country-of-origin effects that has focused on cognitive factors, this article examines the impact of incidental emotions and cognitive appraisals associated with these emotions on country-of-origin effects. Experiment 1 compared anger and sadness and demonstrated that country of origin influenced evaluations only in the angry (vs. sad) condition where human (vs. situation) control was high. Experiment 2 further identified the effects of agency control using a different emotion, frustration. Based on these observations, this article suggests that, like brands, countries also have equity associated with them, termed nation equity, that has both performance and emotional components. …

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Towards Effective Content-Based Music Retrieval With Multiple Acoustic Feature Composition, Jialie Shen, John Shepherd, Ngu Ahh Dec 2006

Towards Effective Content-Based Music Retrieval With Multiple Acoustic Feature Composition, Jialie Shen, John Shepherd, Ngu Ahh

Research Collection School Of Computing and Information Systems

In this paper, we present a new approach to constructing music descriptors to support efficient content-based music retrieval and classification. The system applies multiple musical properties combined with a hybrid architecture based on principal component analysis (PCA) and a multilayer perceptron neural network. This architecture enables straightforward incorporation of multiple musical feature vectors, based on properties such as timbral texture, pitch, and rhythm structure, into a single low-dimensioned vector that is more effective for classification than the larger individual feature vectors. The use of supervised training enables incorporation of human musical perception that further enhances the classification process. We compare …

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Query-Based Watermarking For Xml Data, Xuan Zhou, Hwee Hwa Pang, Kian-Lee Tan Dec 2006

Query-Based Watermarking For Xml Data, Xuan Zhou, Hwee Hwa Pang, Kian-Lee Tan

Research Collection School Of Computing and Information Systems

As increasing amount of XML data is exchanged over the internet, copyright protection of this type of data is becoming an important requirement for many applications. In this paper, we introduce a rights protection scheme for XML data based on digital watermarking. One of the main challenges for watermarking XML data is that the data could be easily reorganized by an adversary in an attempt to destroy any embedded watermark. To overcome it, we propose a query-based watermarking scheme, which creates queries to identify available watermarking capacity, such that watermarks could be recovered from reorganized data through query rewriting. The …

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Creativity Needed In Non-Profits?, Wee Liang Tan Dec 2006

Creativity Needed In Non-Profits?, Wee Liang Tan

Research Collection Lee Kong Chian School Of Business

Creativity is something that one might not associate with the social service sector. In fact, one might consider creativity something quite distant from the non-profit sector. "We in the social service sector have more important things to do - we serve our clients and beneficiaries; we don't have the time to fool around with fancy new ideas or projects." Yet such sentiments could be no further from the truth.

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Reputation Stretching In Online Auctions, Jianqing Chen, Mei Lin, Andrew B. Whinston Dec 2006

Reputation Stretching In Online Auctions, Jianqing Chen, Mei Lin, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

Reputation systems are ubiquitously employed in the online marketplaces to provide information on users’ abilities and trustworthiness. We focus particularly on the problem of reputation stretching, the extension of an established reputation into a new market. By examining various factors—market size, the expected performance in the expanding market, and the risk of performance in the expanding market—we characterize conditions that affect bidder’s stretching decision in the expanding market. Moreover, we analyze both the short-term and the long-term expanding cases, and obtain contrasting results in the two settings.

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A Universal Copyright Fund: A New Way To Bridge The Copyright Divide, Kung-Chung Liu, Haochen Sun Dec 2006

A Universal Copyright Fund: A New Way To Bridge The Copyright Divide, Kung-Chung Liu, Haochen Sun

Research Collection Yong Pung How School Of Law

The ever-increasing digitization of works, along with the deployment of technical measures to protect such works and the expansive use of the Internet, further exacerbate the divide between the IP-rich and IP-poor countries in their ability to benefit from such works. It is suggested by this paper that to borrow from experiences on how the telecommunications world provides universal service to each and every household at affordable prices, and to endeavor to shed some new light on how the copyright divide can be narrowed. It is structured in three parts. The first part will examine the past and future failure …

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An Experimental Study On U-Commerce Adoption: Impact Of Personalization And Privacy Concerns, H. Sheng, Fiona Fui-Hoon Nah, Keng Siau Dec 2006

An Experimental Study On U-Commerce Adoption: Impact Of Personalization And Privacy Concerns, H. Sheng, Fiona Fui-Hoon Nah, Keng Siau

Research Collection School Of Computing and Information Systems

Ubiquitous commerce (u-commerce) represents "anytime, anywhere" commerce. U-commerce can provide a high level of personalization, which can bring significant benefits to customers. However, privacy is a major concern to customers and an obstacle to the adoption of u-commerce. This research examines how personalization and context can impact customers' privacy concerns as well as intention to adopt u-commerce applications. As u-commerce is new and emerging, we used the scenario-based approach to operationalize personalization and context in an experimental study. The experimental results show that the effects of personalization on customers' privacy concerns and adoption intention are situation dependent.

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Identifying Difficulties In Learning Uml, Keng Siau, Poi-Peng Loo Dec 2006

Identifying Difficulties In Learning Uml, Keng Siau, Poi-Peng Loo

Research Collection School Of Computing and Information Systems

Despite its recognition as a standard object-oriented modeling language, Unified Modeling Language (UML) has been criticized for such deficiencies as semantic inconsistencies, vagueness, and conflicting notations. the relationship between these deficiencies and the difficulties in the learning process is the focus of this study. A concept mapping technique is used to unveil the learning difficulties and suggestions for alleviating them are provided.

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Formal Analysis And Systematic Construction Of Two-Factor Authentication Scheme, Guomin Yang, Duncan S. Wong, Huaxiong Wang, Xiaotie Deng Dec 2006

Formal Analysis And Systematic Construction Of Two-Factor Authentication Scheme, Guomin Yang, Duncan S. Wong, Huaxiong Wang, Xiaotie Deng

Research Collection School Of Computing and Information Systems

One of the most commonly used two-factor authentication mechanisms is based on smart card and user’s password. Throughout the years, there have been many schemes proposed, but most of them have already been found flawed due to the lack of formal security analysis. On the cryptanalysis of this type of schemes, in this paper, we further review two recently proposed schemes and show that their security claims are invalid. To address the current issue, we propose a new and simplified property set and a formal adversarial model for analyzing the security of this type of schemes. We believe that the …

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Continuous Monitoring Of Knn Queries In Wireless Sensor Networks, Yuxia Yao, Xueyan Tang, Ee Peng Lim Dec 2006

Continuous Monitoring Of Knn Queries In Wireless Sensor Networks, Yuxia Yao, Xueyan Tang, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Wireless sensor networks have been widely used for civilian and military applications, such as environmental monitoring and vehicle tracking. In these applications, continuous query processing is often required and their efficient evaluation is a critical requirement to be met. Due to the limited power supply for sensor nodes, energy efficiency is a major performance measure in such query evaluation. In this paper, we focus on continuous kNN query processing. We observe that the centralized data storage and monitoring schemes do not favor energy efficiency. We therefore propose a localized scheme to monitor long running nearest neighbor queries in sensor networks. …

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Finding A Length-Constrained Maximum-Sum Or Maximum-Density Subtree And Its Application To Logistics, Hoong Chuin Lau, Trung Hieu Ngo, Bao Nguyen Nguyen Dec 2006

Finding A Length-Constrained Maximum-Sum Or Maximum-Density Subtree And Its Application To Logistics, Hoong Chuin Lau, Trung Hieu Ngo, Bao Nguyen Nguyen

Research Collection School Of Computing and Information Systems

We study the problem of finding a length-constrained maximum-density path in a tree with weight and length on each edge. This problem was proposed in [R.R. Lin, W.H. Kuo, K.M. Chao, Finding a length-constrained maximum-density path in a tree, Journal of Combinatorial Optimization 9 (2005) 147–156] and solved in O(nU) time when the edge lengths are positive integers, where n is the number of nodes in the tree and U is the length upper bound of the path. We present an algorithm that runs in O(nlog2n) time for the generalized case when the edge lengths are positive real numbers, which …

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Measuring Qualities Of Articles Contributed By Online Communities, Ee Peng Lim, Ba-Quy Vuong, Hady W. Lauw, Aixin Sun Dec 2006

Measuring Qualities Of Articles Contributed By Online Communities, Ee Peng Lim, Ba-Quy Vuong, Hady W. Lauw, Aixin Sun

Research Collection School Of Computing and Information Systems

Using open source Web editing software (e.g., wiki), online community users can now easily edit, review and publish articles collaboratively. While much useful knowledge can be derived from these articles, content users and critics are often concerned about their qualities. In this paper, we develop two models, namely basic model and peer review model, for measuring the qualities of these articles and the authorities of their contributors. We represent collaboratively edited articles and their contributors in a bipartite graph. While the basic model measures an article's quality using both the authorities of contributors and the amount of contribution from each …

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Cosign: A Parallel Algorithm For Coordinated Traffic Signal Control, Shih-Fen Cheng, Marina A. Epelman, Robert L. Smith Dec 2006

Cosign: A Parallel Algorithm For Coordinated Traffic Signal Control, Shih-Fen Cheng, Marina A. Epelman, Robert L. Smith

Research Collection School Of Computing and Information Systems

The problem of finding optimal coordinated signal timing plans for a large number of traffic signals is a challenging problem because of the exponential growth in the number of joint timing plans that need to be explored as the network size grows. In this paper, the game-theoretic paradigm of fictitious play to iteratively search for a coordinated signal timing plan is employed, which improves a system-wide performance criterion for a traffic network. The algorithm is robustly scalable to realistic-size networks modeled with high-fidelity simulations. Results of a case study for the city of Troy, MI, where there are 75 signalized …

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Dynamic Multi-Linked Negotiations In Multi-Echelon Production Scheduling Networks, Hoong Chuin Lau, Guan Li Soh, Wee Chong Wan Dec 2006

Dynamic Multi-Linked Negotiations In Multi-Echelon Production Scheduling Networks, Hoong Chuin Lau, Guan Li Soh, Wee Chong Wan

Research Collection School Of Computing and Information Systems

In this paper, we are concerned with scheduling resources in a multi-tier production/logistics system for multi-indenture goods. Unlike classical production scheduling problems, the problem we study is concerned with local utilities which are private. We present an agent model and investigate an efficient scheme for handling multi-linked agent negotiations. With this scheme we attempt to overcome the drawbacks of sequential negotiations and negotiation parameter settings. Our approach is based on embedding a credit-based negotiation protocol within a local search scheduling algorithm. We demonstrate the computational efficiency and effectiveness of the approach in solving a real-life dynamic production scheduling problem which …

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Plans As Products Of Learning, Samin Karim, Budhitama Subagdja, Liz Sonenberg Dec 2006

Plans As Products Of Learning, Samin Karim, Budhitama Subagdja, Liz Sonenberg

Research Collection School Of Computing and Information Systems

This paper presents motivations and current related work in the field of plan learning. Additionally, two approaches that achieve plan learning are presented. The two presented approaches are centred on the BDI framework of agency and have particular focus on plans, which, alongside goals, are the means to fulfil intentions in most pragmatic and theoretical realisations of the BDI framework. The first approach is a hybrid architecture that combines a BDI plan extractor and executor with a generic low-level learner. The second approach uses hypotheses to suggest incremental refinements of a priori plans. Both approaches achieve plan generation that is …

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Set-Based Cascading Approaches For Magnetic Resonance (Mr) Image Segmentation (Scamis), Jiang Liu, Tze-Yun Leong, Kin Ban Chee, Boon Pin Tan, Borys Shuter, Shih Chang Wang Dec 2006

Set-Based Cascading Approaches For Magnetic Resonance (Mr) Image Segmentation (Scamis), Jiang Liu, Tze-Yun Leong, Kin Ban Chee, Boon Pin Tan, Borys Shuter, Shih Chang Wang

Research Collection School Of Computing and Information Systems

This paper introduces Set-based Cascading Approach for Medical Image Segmentation (SCAMIS), a new methodology for segmentation of medical imaging by integrating a number of algorithms. Existing approaches typically adopt the pipeline methodology. Although these methods provide promising results, the results generated are still susceptible to over-segmentation and leaking. In our methodology, we describe how set operations can be utilized to better overcome these problems. To evaluate the effectiveness of this approach, Magnetic Resonance Images taken from a teaching hospital research programme have been utilised, to reflect the real world quality needed for testing in patient datasets. A comparison between the …

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Supply Chain Information Sharing In A Macro Prediction Market, Zhiling Guo, Fang Fang, Andrew B. Whinston Dec 2006

Supply Chain Information Sharing In A Macro Prediction Market, Zhiling Guo, Fang Fang, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

This paper aims to address supply chain partners' incentives for information sharing from an information systems design perspective. Specifically, we consider a supply chain characterized by N geographically distributed retailers who order a homogeneous product from one manufacturer. Each retailer's demand risk consists of two parts: a systematic risk part that affects all retailers and an idiosyncratic risk part that only has a local effect. We propose a macro prediction market to effectively elicit and aggregate useful information about systematic demand risk. We show that such information can be used to achieve accurate demand forecast sharing and better channel coordination …

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A Within-Person Perspective On Feedback Seeking About Task Performance, Frederik Anseel, Filip Rene O Lievens Dec 2006

A Within-Person Perspective On Feedback Seeking About Task Performance, Frederik Anseel, Filip Rene O Lievens

Research Collection Lee Kong Chian School Of Business

In organisations, feedback about multiple performance dimensions is often available. Consequently, employees have to decide on which performance dimensions they will be seeking feedback. In a lab experiment 126 students indicated on which performance dimensions they wanted to receive feedback after completing a computerized in-basket task. Results showed that participants especially sought feedback about their best and most important performance dimensions. Individuals with a high learning goal orientation sought more feedback about their least important performance dimensions as compared to individuals with a low learning goal orientation. In general, results indicated that previous findings obtained in between-person studies of feedback …

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Singapore's Regionalization Blueprint: A Case For Transnational State Enterprise Networks?, Caroline Yeoh, Victor Sim, Louisa Zhang Dec 2006

Singapore's Regionalization Blueprint: A Case For Transnational State Enterprise Networks?, Caroline Yeoh, Victor Sim, Louisa Zhang

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Economics Of Competition': A Study Of Low-Cost Manufacturing Enclaves In Batam Island, Indonesia, Caroline Yeoh, Feng Hao Chua, Sylvie Tan Dec 2006

Economics Of Competition': A Study Of Low-Cost Manufacturing Enclaves In Batam Island, Indonesia, Caroline Yeoh, Feng Hao Chua, Sylvie Tan

Research Collection Lee Kong Chian School Of Business

Singapore’s transborder industrialization projects in China and India have received much attention. This regionalization initiative was intended to set in place a strategic configuration for the city-state to restructure its domestic industries and, pari passu, retain important linkages with contiguous, low-cost environments. Our study reports on Singapore’s pioneering, albeit lesser-known, project - Batamindo Industrial Park – in neighboring Batam Island, Indonesia, and finds that the strategic intent of this policy gambit remains stymied by non-economic, socio-political complexities in the host environment, and the economics of competition from other industrial estates in the vicinity of this prototype, remains to be addressed.

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More Than Job Demands Or Personality, Lack Of Organizational Respect Fuels Employee Burnout, Knowledge@Smu Nov 2006

More Than Job Demands Or Personality, Lack Of Organizational Respect Fuels Employee Burnout, Knowledge@Smu

Knowledge@SMU

One of the biggest complaints employees have, according to Wharton management professor Sigal Barsade, is that "they are not sufficiently recognized by their organizations for the work they do .... When employees don't feel that the organization respects and values them, they tend to experience higher levels of burnout." Barsade and doctoral student Lakshmi Ramarajan look at the role of respect in a paper titled, "What Makes the Job Tough? The Influence of Organizational Respect on Burnout in Human Services."

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Insurance: Indian And Foreign Firms Test Positive For Growth Steroid, Knowledge@Smu Nov 2006

Insurance: Indian And Foreign Firms Test Positive For Growth Steroid, Knowledge@Smu

Knowledge@SMU

The new crop of private and foreign players in India's de-nationalized insurance industry is achieving growth rates in market shares that are bigger than its ambitious estimates. Insurance penetration -- both life and non-life -- has taken off vertically with a proliferation of products, and the former state-owned monopolies are pulling out the best in their armory. India Knowledge@Wharton spoke to some of the key players, industry regulators and consulting houses to capture a ringside view of one of the biggest slugfests these days in the emerging economies.

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Mckinsey's Ian Davis: Maximizing Shareholder Value Doesn't Cut It Anymore, Knowledge@Smu Nov 2006

Mckinsey's Ian Davis: Maximizing Shareholder Value Doesn't Cut It Anymore, Knowledge@Smu

Knowledge@SMU

Shareholder value is growing increasingly irrelevant as government and society take a larger role in shaping business and industry, according to Ian Davis, managing director of McKinsey, the global management-consulting firm. In a Wharton Leadership Lecture, Davis said new societal pressures, such as regulation and environmental sustainability, are now joining the list of long-standing issues -- including growth, globalization and technology -- that demand the attention of today's CEOs.

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Going Up: Real Estate Is On The Rise Again In Japan, Knowledge@Smu Nov 2006

Going Up: Real Estate Is On The Rise Again In Japan, Knowledge@Smu

Knowledge@SMU

Nothing symbolizes Japan's bubble economy, or its subsequent long slump, more than real estate. Now, after dropping by as much as 70%, real estate prices are ticking up, signaling a renewed Japanese economy. A major restructuring of the nation's financial system, along with an injection of foreign capital and the introduction of publicly traded real estate investment trusts, are driving the real estate revival, according to Wharton faculty and real estate analysts working in Tokyo.

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Global Hotspots In The Real Estate Business, Knowledge@Smu Nov 2006

Global Hotspots In The Real Estate Business, Knowledge@Smu

Knowledge@SMU

Emerging real estate markets in India and China, along with recovering property industries in Germany and Japan, are among the top destinations for global real estate investors, according to panelists at the Samuel Zell and Robert Lurie Real Estate Center's fall meeting. During a session titled, "Global Hot Spots -- How to Think about Hot Foreign Markets," Wharton real estate professor Peter Linneman called on each panelist to describe the markets they find most intriguing.

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Unilever's Michael Polk: It's All About 'Dislocating Ideas', Knowledge@Smu Nov 2006

Unilever's Michael Polk: It's All About 'Dislocating Ideas', Knowledge@Smu

Knowledge@SMU

To drive home the subject of his speech at the recent third annual Wharton Marketing conference, Michael Polk, president of Unilever United States, flashed up a definition straight from the dictionary: 'Innovation: a new idea or method; a change in something established.' Polk, who manages such brands as Dove, Axe, Slim-Fast, Country Crock, Wishbone and Q-Tips, said innovation, not invention, lies at the heart of successful marketing campaigns.

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Making The Global Grade: Chinese Managers Are The Latest Enrollees In Western Executive Education Classes, Knowledge@Smu Nov 2006

Making The Global Grade: Chinese Managers Are The Latest Enrollees In Western Executive Education Classes, Knowledge@Smu

Knowledge@SMU

As Chinese firms increasingly turn their attention to strengthening their ability to compete in the global economy, they have a new challenge -- developing international expertise. One way they are doing this is by turning to Western executive education programs, which can include everything from courses in finance, marketing and corporate governance to a visit to Bloomingdale's and meals at noted Western restaurants.

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A Typology Of Plants In Global Manufacturing Networks, Ann Vereecke, Roland Van Dierdonck, Arnoud De Meyer Nov 2006

A Typology Of Plants In Global Manufacturing Networks, Ann Vereecke, Roland Van Dierdonck, Arnoud De Meyer

Research Collection Lee Kong Chian School Of Business

The purpose of this paper is to propose a new, empirically derived typology of plants in the international manufacturing network of multinational companies. This typology is based on the knowledge flows between the plants. In our research, network analysis has been used as a methodology for understanding the position of plants in international manufacturing networks. The focus has been primarily on the intangible knowledge network, and secondarily on the physical, logistic network. Our analysis leads to four types of plants with different network roles: the isolated plants, the receivers, the hosting network players, and the active network players. Our analysis …

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Choice Of Currency By East Asia Bond Issuers, David Fernandez, Simon Klassen Nov 2006

Choice Of Currency By East Asia Bond Issuers, David Fernandez, Simon Klassen

Research Collection Lee Kong Chian School Of Business

In discussing bond markets in Asia, academics and policymakers typically begin by noting that the Asian crisis of 1997-98 in part resulted from the underdevelopment of the region’s domestic bond markets and the resultant currency and duration mismatches. When assessing the progress made in developing these markets in the post-crisis years, academics and policymakers usually observe that, while several domestic currency government bond markets have moved ahead, corporate bond markets have lagged (Asian Development Bank (2002), Reserve Bank of Australia (2003)). The policy conclusion is therefore often drawn: to prevent another Asian crisis, Asian bond markets must be further developed.

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Bnp Paribas And Singapore Management University Set Up Asia's First Hedge Fund Centre, Singapore Management University Nov 2006

Bnp Paribas And Singapore Management University Set Up Asia's First Hedge Fund Centre, Singapore Management University

SMU Press Releases and News

No abstract provided.

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