Digital Commons Network^™

Trust In Leadership: Meta-Analytic Findings And Implications For Research And Practice, Kurt T. Dirks, Donald L. Ferrin

Research Collection Lee Kong Chian School Of Business

In this study, the authors examined the findings and implications of the research on trust in leadership that has been conducted during the past 4 decades. First, the study provides estimates of the primary relationships between trust in leadership and key outcomes, antecedents, and correlates (k = 106). Second, the study explores how specifying the construct with alternative leadership referents (direct leaders vs. organizational leadership) and definitions (types of trust) results in systematically different relationships between trust in leadership and outcomes and antecedents. Direct leaders (e.g., supervisors) appear to be a particularly important referent of trust. Last, a theoretical framework …

Analyzing Unified Modeling Language Using Concept Mapping, Keng Siau, Z. Shen

Research Collection School Of Computing and Information Systems

The Unified Modeling Language (UML) is a visual modeling language for object-oriented software development. Although the Object Management Group (OMG) adopted UML as its standard modeling language in 1997, the consensus in the academic community and the industry is that further research is needed to evaluate, enhance, extend, and formalize UML. A substantial amount of research has been conducted to this end, but most was based on common sense, informal observation, and intuition. Systematic and empirical studies to analyze, evaluate, and enhance UML have been lacking. This paper attempts to evaluate and study UML from a cognitive perspective. Specifically, the …

In Search Of Permanent Homes: Singapore's House Churches And The Politics Of Space, Lily Kong

Research Collection School of Social Sciences

This paper focuses on one category of the 'unofficially sacred'-namely, those secular spaces which are used for worship and, in particular, residential spaces which are turned into 'house churches'. Using the case study of a house church in Singapore, the paper examines issues about the politics of religion in urban landscapes in a secular and simultaneously multireligious state. Contrary and in addition to current wisdoms about the politics of religious space, it is argued that various politics are observed: a politics of inclusion; a politics of hybridisation and in-betweenness; a politics of appropriation and nationalisation; and a politics of impermanence …

Interference Between Verbal Concept Formation And Spatial Mental Rotation In Female Subjects, Tamas Makany, Kázmér Karadi, János Kallai, Lynn Nadel

Research Collection Lee Kong Chian School Of Business

In this study the relation between spatial cognition and verbal intelligence abilities was examined in case of 52 women. Interference between mental rotation performance and verbal intelligence scores was found. Women with good verbal abilities have lower scores in mental rotation tasks than subjects with poorer verbal abilities. This finding is in accordance with some basic models of a dual-coding system. The spatial functions represented in mental rotation interfered with verbal-based concept formation and lexical knowledge in college women.

Singapore Management University Announces New Wee Kim Wee Centre At Convocation 2002, Singapore Management University

SMU Press Releases and News

No abstract provided.

On Uncertainty, Ambiguity, And Complexity In Project Management, Michael T. Pich, Christoph H. Loch, Arnoud De Meyer

Research Collection Lee Kong Chian School Of Business

This article develops a model of a project as a payoff function that depends on the state of the world and the choice of a sequence of actions. A causal mapping, which may be incompletely known by the project team, represents the impact of possible actions on the states of the world. An underlying probability space represents available information about the state of the world. Interactions among actions and states of the world determine the complexity of the payoff function. Activities are endogenous, in that they are the result of a policy that maximizes the expected project payoff.

A key …

Dsc Analysis Of Rectangular Plates With Non-Uniform Boundary Conditions, Yibao Zhao, G. W. Wei

Research Collection Lee Kong Chian School Of Business

This paper introduces the discrete singular convolution (DSC) for the vibration analysis of rectangular plates with non-uniform and combined boundary conditions. A systematic scheme is proposed for the treatment of boundary conditions required in the proposed approach. The validity of the DSC approach for plate vibration is tested by using a large number of numerical examples that have a combination of simply supported, clamped and transversely supported (with non-uniform elastic rotational restraint) edges. The present results are in excellent agreement with those in the literature.

Organizing And Personalizing Intelligence Gathering From The Web, Hwee-Leng Ong, Ah-Hwee Tan, Jamie Ng, Pan Hong, Qiu-Xiang Li

Research Collection School Of Computing and Information Systems

In this paper, we describe how an integrated web‐based application, code‐named FOCI (Flexible Organizer for Competitive Intelligence), can help the knowledge worker in the gathering, organizing, tracking and dissemination of competitive intelligence (CI). It combines the use of a novel user‐configurable clustering, trend analysis and visualization techniques to manage information gathered from the web. FOCI allows its users to define and personalize the organization of the information clusters according to their needs and preferences into portfolios. These personalized portfolios created are saved and can be subsequently tracked and shared with other users. The paper runs through an example to show …

Detection Of Slide Transition For Topic Indexing, Chong-Wah Ngo, Ting-Chuen Pong, Thomas S. Huang

Research Collection School Of Computing and Information Systems

This paper presents an automatic and novel approach in detecting the transitions of slides for video sequences of technical lectures. Our approach adopts a foreground vs background segmentation algorithm to separate a presenter from the projected electronic slides. Once a background template is generated, text captions are detected and analyzed. The segmented caption regions as well as background templates together provide salient visual cues to decide whether a slide is flipped and replaced. The partitioning of videos according to slide changes not only structure the content of video according to topics, but also facilitate the synchronization of video, audio and …

Hci Research Issues In Electronic Commerce, Fiona Fui-Hoon Nah, Sid Davis

Research Collection School Of Computing and Information Systems

This article outlines a number of important research issues in human-computer interaction in the e-commerce environment. It highlights some of the challenges faced by users in browsing Web sites and conducting searches for information, and suggests several areas of research for promoting ease of navigation and search. Also, it discusses the importance of trust in the online environment, describing some of the antecedents and consequences of trust, and provides guidelines for integrating trust into Web site design. The issues discussed in this article are presented under three broad categories of human-computer interaction – Web usability, interface design, and trust – …

Endogenous Tariff Formation With Intra-Industry Trade, Pao-Li Chang

Research Collection School Of Economics

Previous theoretical contributions on endogenous tariff formation have focused on trade models with homogeneous goods and constant returns to scale. This paper investigates the political equilibrium of trade policy when economic structure is instead characterized by differentiated products and increasing returns to scale and there exists intra-industry trade. The result shows that endogenous tariffs are positive for all industries with non-negligible shares of world production. However, the level of protection is less than the optimal tariff that would otherwise be imposed by a benevolent government in an unorganized industry, and higher in an organized industry. The protection provided to all …

The Evolution And Utilization Of The Gatt/Wto Dispute Settlement Mechanism, Pao Li Chang

Research Collection School Of Economics

This paper attempts to study the usage of the GATT/WTO dispute settlement mechanism and to explain its patterns across different regimes and decades, using a unified theoretical model. This study first explores the role of the degree of legal controversy over a panel ruling in determining countries’ incentives to block/appeal a panel report under the GATT/WTO regime. The model is able to explain the surge in blocking incidence during the 1980s over the preceding GATT years and the immense frequency at which the new appellate procedure under the WTO is invoked. Furthermore, a two-sided asymmetric information framework is used to …

A Misspecification-Robust Impulse Response Estimator, Pao Li Chang, Shinichi Sakata

Research Collection School Of Economics

Impulse response analysis is typically conducted by fitting an autoregression model to a time series and calculating the moving average coefficients implied by the estimated autoregression model. The possible shape and persistence of the impulse response function implied by a parsimonious autoregression specification are very limited. This paper proposes an alternative approach to estimating impulse response function, which is asymptotically valid yet is less sensitive to model misspecifications in small samples. The small sample advantages of the proposed impulse response estimator over the conventional approach is demonstrated by Monte Carlo studies. The large sample validity of the proposed estimator is …

Hcl: A Specification Language For Hierarchical Text Classification, Aixin Sun, Ee Peng Lim, Wee-Keong Ng

Research Collection School Of Computing and Information Systems

Hierarchical text classification refers to assigning text documents to the categories in a given category tree based on their content. With large number of categories organized as a tree, hierarchical text classification helps users to find information more quickly and accurately. Nevertheless, hierarchical text classification methods in the past have often been constructed in a proprietary manner. The construction steps often involve human efforts and are not completely automated. In this paper, we therefore propose a specification language known as HCL (Hierarchical Classification Language) . HCL is designed to describe a hierarchical classification method including the definition of a category …

Integrating Local Search And Network Flow To Solve The Inventory Routing Problem, Hoong Chuin Lau, Q Liu, H. Ono

Research Collection School Of Computing and Information Systems

The inventory routing problem is one of important and practical problems in logistics. It involves the integration of inventory management and vehicle routing, both of which are known to be NP-hard. In this paper, we combine local search and network flows to solve the inventory management problem, by utilizing the minimum cost flow sub-solutions as a guiding measure for local search. We then integrate with a standard VRPTW solver to present experimental results for the overall inventory routing problem, based on instances extended from the Solomon benchmark problems.

Exchanging Preliminary Information In Concurrent Engineering: Alternative Coordination Strategies, Christian Terwiesch, Christoph H. Loch, Arnoud De Meyer

Research Collection Lee Kong Chian School Of Business

Successful application of concurrent development processes (concurrent engineering) requires tight coordination. To speed development, tasks often proceed in parallel by relying on preliminary information from other tasks, information that has not yet been finalized. This frequently causes substantial rework using as much as 50% of total engineering capacity. Previous studies have either described coordination as a complex social process, or have focused on the frequency, but not the content, of information exchanges. Through extensive fieldwork in a high-end German automotive manufacturer, we develop a framework of preliminary information that distinguishes information precision and information stability. Information precision refers to the …

Human Resource Development Programs For Overseas Assignments In The Asia-Pacific: A Study Of Managers In Singapore, A. Ahad M. Osman-Gani, Wee Liang Tan

Research Collection Lee Kong Chian School Of Business

Asia-Pacific region form a major arena of increasing interest for overseas business operations. In this regard, human resource development (HRD) issues are found to play significant roles in major international business decisions. Yet little is known about the international HRD programs and practices employed by companies to train and develop managers for this dynamic region. This paper presents the empirical findings of a study on the relative importance of training on several key factors that are crucial to companies for their managers to succeed in overseas assignments in the Asia Pacific region. The study is based on a sample of …

Leadership Antecedents Of Informal Knowledge Acquisition And Dissemination, Siu Loon Hoe, Steve Mcshane

Research Collection School Of Computing and Information Systems

Knowledge management is emerging as one of the leading influences on an organisation’s survival and competitive advantage (Blumentritt & Johnston 1999). Knowledge management is concerned with the effective acquisition, sharing, storage and utilisation of knowledge (Huber 1991; Saffady 1998). Corporate leaders are increasingly aware of the notion that an organisation’s long-term survival depends on its ability to generate new knowledge and continuously learn from the environment. The importance of a superior organisational learning capability as a source of competitive advantage is a common refrain among both managers and scholars (e.g. Kohli & Jaworski 1990; Nonaka 1991; Quinn 1992; Slater & …

The Case For Cyber Foraging, Rajesh Balan, Jason Flinn, Mahadev Satyanarayanan, Shafeeq Sinnamohideen, Hen-I Yang

Research Collection School Of Computing and Information Systems

In this paper, we propose cyber foraging: a mechanism to augment the computational and storage capabilities of mobile devices. Cyber foraging uses opportunistically discovered servers in the environment to improve the performance of interactive applications and distributed file systems on mobile clients. We show how the performance of distributed file systems can be improved by staging data at these servers even though the servers are not trusted. We also show how the performance of interactive applications can be improved via remote execution. Finally, we present VERSUDS: a virtual interface to heteregeneous service discovery protocols that can be used to discover …

G-Portal : A Map-Based Digital Library For Distributed Geospatial And Georeferenced Resources, Ee Peng Lim, Dion Hoe-Lian Goh

Research Collection School Of Computing and Information Systems

As the World Wide Web evolves into an immense information network, it is tempting to build new digital library services and expand existing digital library services to make use of web content. In this paper, we present the design and implementation of G-Portal, a web portal that aims to provide digital library services over geospatial and georeferenced content found on the World Wide Web. G-Portal adopts a map-based user interface to visualize and manipulate the distributed geospatial and georeferenced content. Annotation capabilities are supported, allowing users to contribute geospatial and georeferenced objects as well as their associated metadata. The other …

A Digital Library For Geography Examination Resources, Lian-Heong Chua, Dion Hoe-Lian Goh, Zehua Liu, Ee Peng Lim, Rebecca Pei-Hui Ang

Research Collection School Of Computing and Information Systems

We describe a Web-based application developed above a digital library of geographical resources for Singapore students preparing to take a national examination in geography. The application provides an interactive, non-sequential approach to learning that supplements textbooks.

Dr. Richard Hu Is Appointed New Chancellor Of Singapore Management University, Singapore Management University

SMU Press Releases and News

No abstract provided.

Culture And Its Consequences For Entrepreneurship, Gerard George, Shaker A Zahra

Research Collection Lee Kong Chian School Of Business

This special issue of the Journal "Entrepreneurship Theory and Practice" focuses on the relationship between culture and entrepreneurship. It adopts a broad definition of both culture and entrepreneurship. Culture is used to refer to the enduring set of values of a nation, a region, or an organization. Entrepreneurship is defined as the act and process by which societies, regions, organizations, or individuals identify and pursue business opportunities to create wealth. The articles in this special issue highlight opportunities for future research, both theoretical and empirical. These studies offer a preliminary roadmap for conducting influential and insightful research that can enrich …

National Culture And Entrepreneurship: A Review Of Behavioral Research, James C. Hayton, Gerard George, Shaker A. Zahra

Research Collection Lee Kong Chian School Of Business

Conceptual arguments for the association between cultural characteristics and entrepreneurship have existed for decades but only in the last 10 years has this relationship been the focus of empirical scrutiny. In this article, we review and synthesize the findings of 21 empirical studies that examine the association between national cultural characteristics and aggregate measures of entrepreneurship, individual characteristics of entrepreneurs, and aspects of corporate entrepreneurship. The study concedes that a predominant number of empirical studies have used Hofstede's conceptualization of national culture and that other domains have been underdeveloped. A preliminary model that integrates past findings is extended. The review …

Data Management In Location-Dependent Information Services: Challenges And Issues, Dik Lun Lee, Jianliang Xu, Baihua Zheng, Wang-Chien Lee

Research Collection School Of Computing and Information Systems

Location-dependent information services have great promise for mobile and pervasive computing environments. They can provide local and nonlocal news, weather, and traffic reports as well as directory services. Before they can be implemented on a large scale, however, several research issues must be addressed.

Fast Filter-And-Refine Algorithms For Subsequence Selection, Beng-Chin Ooi, Hwee Hwa Pang, Hao Wang, Limsoon Wong, Cui Yu

Research Collection School Of Computing and Information Systems

Large sequence databases, such as protein, DNA and gene sequences in biology, are becoming increasingly common. An important operation on a sequence database is approximate subsequence matching, where all subsequences that are within some distance from a given query string are retrieved. This paper proposes a filter-and-refine algorithm that enables efficient approximate subsequence matching in large DNA sequence databases. It employs a bitmap indexing structure to condense and encode each data sequence into a shorter index sequence. During query processing, the bitmap index is used to filter out most of the irrelevant subsequences, and false positives are removed in the …

Untimely Punishment And Dubious Desert, John N. Williams

Research Collection School of Social Sciences

Discussions of punishment have always assumed (e.g.[4, pp. 80-5]) that there are no circumstances in which someone can be justifiably punished for a crime that he will commit. This assumption has been directly challenged by Christopher New’s apparent example of morally justified ‘prepunishment’ [7]. In a recent paper, Fred Feldman rejects the ‘received wisdom’1 that desert cannot precede its basis by giving apparent examples of ‘predeserved’ charity, reward and apology [3, pp. 71-75]. If there can be cases of predeserved punishment as well, then anyone who holds that it is morally justifiable to punish an offender if and only if …

Orwell And Huxley: Making Dissent Unthinkable, John N. Williams

Research Collection School of Social Sciences

In this paper I compare the fictional world depicted by Orwell’s 1984 with that of Huxley’s Brave New World from the point of view of an analytic philosopher. Neither novel should be read as predictions, the accuracy of which can be used to judge them. Rather, both attempt to portray what humanity could conceivably become. The authenticity of this conceivability is a necessary condition of the power of both works to raise central philosophical questions about the human condition. What is ethically wrong with control? How far can Man go in recreating himself? In what sense are these worlds anti-utopian? …

Moorean Absurdities And Higher Order Beliefs, John N. Williams

Research Collection School of Social Sciences

No abstract provided.

Superman, Wittgenstein And The Disappearance Of Moorean Absurdity, John N. Williams

Research Collection School of Social Sciences

'You have known me for years, Lois' explains Superman, as I lay aside my copy of Crimmins’s example (1992). 'But there is something you have not yet discovered. You also know me under a disguise. You have not yet realized that this person is I in disguise. On that way of thinking about me, you have different opinions of me. In fact you think me an idiot.' I've just informed Superman that I accept his testimony on the strength of his intelligence. But I confess I don’t quite know how to acknowledge my acceptance of his final remark.