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Singapore Management University

2014

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Ko Ko Gyi [Myanmar, Activist], Ko Ko Gyi Dec 2014

Ko Ko Gyi [Myanmar, Activist], Ko Ko Gyi

Digital Narratives of Asia

Myanmar democracy activist Ko Ko Gyi spent a total of 17 years in prison for his political beliefs. First detained for his involvement in student protests in 1989, he was eventually released in 2012, along with 600 others, when the military-led government began implementing reforms. Mr Ko Ko Gyi now champions democracy and human rights issues as General Secretary of the 88 Generation Peace and Open Society. He was also a member of the government's Rakhine Investigation Commission to investigate the sectarian violence in Rakhine state. He speaks to DNA about the darkest days of his time in the infamous …

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Effects Of Training Datasets On Both The Extreme Learning Machine And Support Vector Machine For Target Audience Identification On Twitter, Siaw Ling Lo, David Cornforth, Raymond Chiong Dec 2014

Effects Of Training Datasets On Both The Extreme Learning Machine And Support Vector Machine For Target Audience Identification On Twitter, Siaw Ling Lo, David Cornforth, Raymond Chiong

Research Collection School Of Computing and Information Systems

The ability to identify or predict a target audience from the increasingly crowded social space will provide a company some competitive advantage over other companies. In this paper, we analyze various training datasets, which include Twitter contents of an account owner and its list of followers, using features generated in different ways for two machine learning approaches - the Extreme Learning Machine (ELM) and Support Vector Machine (SVM). Various configurations of the ELM and SVM have been evaluated. The results indicate that training datasets using features generated from the owner tweets achieve the best performance, relative to other feature sets. …

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Human Action Classification Based On Sequential Bag-Of-Words Model, Hong Liu, Qiaoduo Zhang, Qianru Sun Dec 2014

Human Action Classification Based On Sequential Bag-Of-Words Model, Hong Liu, Qiaoduo Zhang, Qianru Sun

Research Collection School Of Computing and Information Systems

Recently, approaches utilizing spatial-temporal features have achieved great success in human action classification. However, they typically rely on bag-of-words (BoWs) model, and ignore the spatial and temporal structure information of visual words, bringing ambiguities among similar actions. In this paper, we present a novel approach called sequential BoWs for efficient human action classification. It captures temporal sequential structure by segmenting the entire action into sub-actions. Each sub-action has a tiny movement within a narrow range of action. Then the sequential BoWs are created, in which each sub-action is assigned with a certain weight and salience to highlight the distinguishing sections. …

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Online Learning On Incremental Distance Metric For Person Re-Identification, Yuke Sun, Hong Liu, Qianru Sun Dec 2014

Online Learning On Incremental Distance Metric For Person Re-Identification, Yuke Sun, Hong Liu, Qianru Sun

Research Collection School Of Computing and Information Systems

Person re-identification is to match persons appearing across non-overlapping cameras. The matching is challenging due to visual ambiguities and disparities of human bodies. Most previous distance metrics are learned by off-line and supervised approaches. However, they are not practical in real-world applications in which online data comes in without any label. In this paper, a novel online learning approach on incremental distance metric, OL-IDM, is proposed. The approach firstly modifies Self-Organizing Incremental Neural Network (SOINN) using Mahalanobis distance metric to cluster incoming data into neural nodes. Such metric maximizes the likelihood of a true image pair matches with a smaller …

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Mapping The Umbrella Movement: Uncovering Grounded Theologies In Hong Kong, Justin Kh Tse Dec 2014

Mapping The Umbrella Movement: Uncovering Grounded Theologies In Hong Kong, Justin Kh Tse

Research Collection School of Social Sciences

As this Syndicate forum on the Umbrella Movement and theology winds to a close, the physical occupations in Hong Kong seem to be nearing their end stage. With court injunctions, police clearances, statements of support from the People’s Republic of China (PRC) for the Hong Kong government, the attempted voluntary surrender of Occupy Central leaders to the police, and a student hunger strike after over seventy days of street occupations, it might seem late in the game to call for the mapping of “grounded theologies,” “performative practices of placemaking informed by understandings of the transcendent,” woven into the political constitution …

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Visionaries, Architects And Pioneers: Conceptualising Smu, Pin Pin Yeo, Patricia Meyer Dec 2014

Visionaries, Architects And Pioneers: Conceptualising Smu, Pin Pin Yeo, Patricia Meyer

Research Collection Library

The Singapore Management University (SMU) Library was tasked with documenting the early history of SMU by the chairman of its board of trustees. An oral history project to interview the pioneers involved in the formation of the university began in 2011. The project team included the Library, the Information Technology department, and a researcher/interviewer who was familiar with SMU. It was a steep learning curve for the team. As they conducted and processed the interviews, they learned about and made decisions on interviewing, recording, transcribing, storage, website design, discoverability, usability, and sustainability. The resulting oral history website presents the interviews …

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The Vientiane Report: National Landscape, Current Challenges And Opportunities For Growt, Institute For Societal Leadership, Lai Cheng Lim Dec 2014

The Vientiane Report: National Landscape, Current Challenges And Opportunities For Growt, Institute For Societal Leadership, Lai Cheng Lim

Institute of Societal Leadership Research Collection

Laos is a small, landlocked, mountainous country in Southeast Asia. As a country, it shares borders with Myanmar and the People’s Republic of China to the Northwest, Vietnam to the East, Cambodia to the South and Thailand to the West.

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The Dili Report: National Landscape, Current Challenges And Opportunities For Growth, Institute For Societal Leadership, Lai Cheng Lim Dec 2014

The Dili Report: National Landscape, Current Challenges And Opportunities For Growth, Institute For Societal Leadership, Lai Cheng Lim

Institute of Societal Leadership Research Collection

Timor-Leste, Asia’s newest nation, is located in Southeast Asia, on the southernmost edge of the Indonesian archipelago. The country was colonised by the Portuguese for over 450 years, occupied by the Indonesians for 24 years and administered by the United Nations for two and a half years. As a nation, Timor-Leste has had a very traumatic birth.

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Modeling The Evolution Of Generativity And The Emergence Of Digital Ecosystems, C. Jason Woodard, Eric K. Clemons Dec 2014

Modeling The Evolution Of Generativity And The Emergence Of Digital Ecosystems, C. Jason Woodard, Eric K. Clemons

Research Collection School Of Computing and Information Systems

Recent literature on sociotechnical systems has employed the concept of generativity to explain the remarkable capacity for digital artifacts to support decentralized innovation and the emergence of rich business ecosystems. In this paper, we propose agent-based computational modeling as a tool for studying the evolution of generativity, and offer a set of building blocks for constructing agent-based models in which generativity evolves. We describe a series of models that we have created using these building blocks, and summarize the results of our computational experiments to date. We find in several different settings that key features of generative systems can themselves …

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Values, Outrage And The Good Society, David Chan Dec 2014

Values, Outrage And The Good Society, David Chan

Research Collection School of Social Sciences

In an invited commentary, SMU Behavioural Sciences Institute Director Professor David Chan discussed the positives in public outrage and controversies. He explained how the reactions to some local headline events in 2014 reflected specific shared values and guiding principles in Singapore.

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Transnational Mobilities And The Making Of Creative Cities, Lily Kong Dec 2014

Transnational Mobilities And The Making Of Creative Cities, Lily Kong

Research Collection School of Social Sciences

This review essay on the literature on creative cities pays particular attention to the ways in which transnational mobilities contribute significantly to the making of such cities. The paper reviews critically both the literature and phenomena of creative cities and their transnational flows by framing the discussion around the mobility of ideas (creative economy/creative city discourse), the mobility of people (the migration of the creative class), the mobility of technology (the travel of the creative cluster and architectural iconism phenomena), the mobility of finances (capital and investment flows), and the mobility of images (transnational artistic collaborations and products).

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Measuring Student Performance And Providing Feedback Using Competency Framework, Joelle Elmaleh, Venky Shankararaman Dec 2014

Measuring Student Performance And Providing Feedback Using Competency Framework, Joelle Elmaleh, Venky Shankararaman

Research Collection School Of Computing and Information Systems

A number of Computer Science and Information Systems programs have effectively defined learning outcomes, course level competencies, and conducted assessments at the program level to determine areas for continuous improvement. However, many of these programs do not fully leverage the course competencies during the actual delivery and assessment of the course. This paper presents how course competencies can be used to effectively deliver and assess the course content, and give valuable timely feedback to the students. Using a large first year core course of the BSc (Information Systems Management) program (called Object Oriented Application Development course-OOAD) as an example, this …

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Detecting Flow Anomalies In Distributed Systems, Freddy Chong-Tat Chua, Ee Peng Lim, Bernardo Huberman Dec 2014

Detecting Flow Anomalies In Distributed Systems, Freddy Chong-Tat Chua, Ee Peng Lim, Bernardo Huberman

Research Collection School Of Computing and Information Systems

Deep within the networks of distributed systems, one often finds anomalies that affect their efficiency and performance. These anomalies are difficult to detect because the distributed systems may not have sufficient sensors to monitor the flow of traffic within the interconnected nodes of the networks. Without early detection and making corrections, these anomalies may aggravate over time and could possibly cause disastrous outcomes in the system in the unforeseeable future. Using only coarse-grained information from the two end points of network flows, we propose a network transmission model and a localization algorithm, to detect the location of anomalies and rank …

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Determinants Of Ethical Climate In The Firm:The Role Of Governance Systems And Environmental Uncertainty, John J. Williams, Alfred E. Seaman Dec 2014

Determinants Of Ethical Climate In The Firm:The Role Of Governance Systems And Environmental Uncertainty, John J. Williams, Alfred E. Seaman

Research Collection School Of Accountancy

Corporate governance mechanisms essentially reside in the control structure/systems of most organizations and provide, theoretically at least, a conduit to support a better organizational ethical climate. This linkage, however, has seldom been portrayed this way in the literature and, correspondingly, there are virtually no empirical studies to offer increased understanding, especially with respect to the professional accountant in practice. Accordingly, this paper empirically assesses the governance mechanisms sanctioned by the International Federation of Accountants (2009) as determinants of an organization’s ethical climate based on evidence from a Canadian sample of CFOs/controllers. The ethics/leadership literature relating to ethical climate provides the …

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High-Dimensional Data Stream Classification Via Sparse Online Learning, Dayong Wang, Pengcheng Wu, Peilin Zhao, Yue Wu, Chunyan Miao, Steven C. H. Hoi Dec 2014

High-Dimensional Data Stream Classification Via Sparse Online Learning, Dayong Wang, Pengcheng Wu, Peilin Zhao, Yue Wu, Chunyan Miao, Steven C. H. Hoi

Research Collection School Of Computing and Information Systems

The amount of data in our society has been exploding in the era of big data today. In this paper, we address several open challenges of big data stream classification, including high volume, high velocity, high dimensionality, and high sparsity. Many existing studies in data mining literature solve data stream classification tasks in a batch learning setting, which suffers from poor efficiency and scalability when dealing with big data. To overcome the limitations, this paper investigates an online learning framework for big data stream classification tasks. Unlike some existing online data stream classification techniques that are often based on first-order …

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Testing The Martingale Hypothesis, Peter C. B. Phillips, Sainan Jin Dec 2014

Testing The Martingale Hypothesis, Peter C. B. Phillips, Sainan Jin

Research Collection School Of Economics

We propose new tests of the martingale hypothesis based on generalized versions of the Kolmogorov–Smirnov and Cramér–von Mises tests. The tests are distribution-free and allow for a weak drift in the null model. The methods do not require either smoothing parameters or bootstrap resampling for their implementation and so are well suited to practical work. The article develops limit theory for the tests under the null and shows that the tests are consistent against a wide class of nonlinear, nonmartingale processes. Simulations show that the tests have good finite sample properties in comparison with other tests particularly under conditional heteroscedasticity …

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Cash Is Suprisingly Valuable As A Strategic Asset, Changhyun Kim, Richard A. Bettis Dec 2014

Cash Is Suprisingly Valuable As A Strategic Asset, Changhyun Kim, Richard A. Bettis

Research Collection Lee Kong Chian School Of Business

Academics, politicians, and journalists are often highly critical of U.S. firms for holding too much cash. Cash holdings are stockpiled free-cash flow and incur substantial opportunity costs from the perspectives of economics. However, behavioral theory highlights the benefits of cash holdings as fungible slack resources facilitating adaptive advantages. We use the countervailing forces embodied in these two theories to hypothesize and test a quadratic functional relationship of returns to cash measured by Tobin's q. We also build and test a related novel hypothesis of scale-dependent returns to cash based on the competitive strategy concept of strategic deterrence. Tests for both …

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Business Time Sampling Scheme And Its Applications To Semi-Martingale Hypothesis And Estimating Integrated Volatility, Yingjie Dong, Yiu Kuen Tse Dec 2014

Business Time Sampling Scheme And Its Applications To Semi-Martingale Hypothesis And Estimating Integrated Volatility, Yingjie Dong, Yiu Kuen Tse

Research Collection School Of Economics

No abstract provided.

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Rural Electrification And Development In South Korea, Terry Van Gevelt Dec 2014

Rural Electrification And Development In South Korea, Terry Van Gevelt

Research Collection College of Integrative Studies

In fifteen years, South Korea went from providing only 12% of rural households with electricity to providing 98% of rural households with electricity for lighting and productive uses. This paper provides an analysis of rural electrification and development in South Korea from 1965 to 1979 and finds that rural electrification contributed to a significant increase in rural household income levels and improved the quality of life in villages substantially. At the same time, rural electrification did not benefit the poorest quartile of rural households, increased economic and social inequality, led to a significant increase in household debt, and accelerated migration …

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Data Preparation For Social Network Mining And Analysis, Yazhe Wang Dec 2014

Data Preparation For Social Network Mining And Analysis, Yazhe Wang

Dissertations and Theses Collection (Open Access)

This dissertation studies the problem of preparing good-quality social network data for data analysis and mining. Modern online social networks such as Twitter, Facebook, and LinkedIn have rapidly grown in popularity. The consequent availability of a wealth of social network data provides an unprecedented opportunity for data analysis and mining researchers to determine useful and actionable information in a wide variety of fields such as social sciences, marketing, management, and security. However, raw social network data are vast, noisy, distributed, and sensitive in nature, which challenge data mining and analysis tasks in storage, efficiency, accuracy, etc. Many mining algorithms cannot …

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The (Un) Desirability Of Happiness: Pathogen Threats Predict Differences In The Value Of Happiness, Sharon Li Hua Koh Dec 2014

The (Un) Desirability Of Happiness: Pathogen Threats Predict Differences In The Value Of Happiness, Sharon Li Hua Koh

Dissertations and Theses Collection (Open Access)

People in some parts of the world find positive emotions more desirable than others. What accounts for this variability? We predicted that happiness would be valued less under conditions where the behaviors that happiness promotes would be less beneficial. We analyzed international survey data and United Nations voting records and found that happiness was valued relatively less in environments that had been historically pathogen-rich. Using a series of experimental studies, we showed that people who were experimentally primed by the threat of pathogens judged happiness in others less favorably and found happiness less appropriate. Our findings contribute to research on …

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On The Limitations Of Using Situational Judgement Tests To Measure Interpersonal Skills: The Moderating Influence Of Employee Anger, Jerel E. Slaughter, Michael S. Christian, Nathan P. Podsakoff, Evan F. Sinar, Filip Lievens Dec 2014

On The Limitations Of Using Situational Judgement Tests To Measure Interpersonal Skills: The Moderating Influence Of Employee Anger, Jerel E. Slaughter, Michael S. Christian, Nathan P. Podsakoff, Evan F. Sinar, Filip Lievens

Research Collection Lee Kong Chian School Of Business

Many authors have suggested that situational judgment tests (SJTs) are useful tools for assessing applicants because SJT items can be written to assess a number of job-related knowledges, skills, abilities and other characteristics (KSAOs). However, SJTs may not be appropriate for measuring certain KSAOs for some applicants. We posit that using SJTs to measure interpersonal skills may lead to invalid inferences about applicants with higher levels of angry hostility (AH), and thus, AH should moderate the relation between interpersonally oriented SJTs and job performance. Three studies, using samples of healthcare workers (n = 225), police officers (n = 54), and …

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Detecting Camouflaged Applications On Mobile Application Markets, Mon Kywe Su, Yingjiu Li, Huijie Robert Deng, Jason Hong Dec 2014

Detecting Camouflaged Applications On Mobile Application Markets, Mon Kywe Su, Yingjiu Li, Huijie Robert Deng, Jason Hong

Research Collection School Of Computing and Information Systems

Application plagiarism or application cloning is an emerging threat in mobile application markets. It reduces profits of original developers and sometimes even harms the security and privacy of users. In this paper, we introduce a new concept, called camouflaged applications, where external features of mobile applications, such as icons, screenshots, application names or descriptions, are copied. We then propose a scalable detection framework, which can find these suspiciously similar camouflaged applications. To accomplish this, we apply text-based retrieval methods and content-based image retrieval methods in our framework. Our framework is implemented and tested with 30,625 Android applications from the official …

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Midas: Empowering 802.11ac With Multiple-Input Distributed Antenna Systems, Jie Xiong, Karthikeyan Sundaresan, Kyle Jamieson, Mohammad A. Khojastepour, Sampath Rangarajan Dec 2014

Midas: Empowering 802.11ac With Multiple-Input Distributed Antenna Systems, Jie Xiong, Karthikeyan Sundaresan, Kyle Jamieson, Mohammad A. Khojastepour, Sampath Rangarajan

Research Collection School Of Computing and Information Systems

Next generation WLANs (802.11ac) are undergoing a major shift in their communication paradigm with the introduction of multi-user MIMO (MU-MIMO), transitioning from single-user to multi-user communications. We argue that the conventional AP deployment model of co-located antennas as well as their PHY and MAC mechanisms are not designed to realize the complete potential of MUMIMO. We propose to leverage distributed antenna systems (DAS) to empower next generation 802.11ac networks. We highlight the multitude of benefits that DAS brings to MU-MIMO and 802.11ac in general. However, several challenges arise in the process of realizing these benefits in practice, where avoiding client …

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Using Consumer Informedness As An Information Strategy, Ting Li, Robert John Kauffman, Eric Van Heck, Peter Vervest, Benedict Dellaert Dec 2014

Using Consumer Informedness As An Information Strategy, Ting Li, Robert John Kauffman, Eric Van Heck, Peter Vervest, Benedict Dellaert

Research Collection School Of Computing and Information Systems

Consumer informedness describes the degree to which consumers are aware of the specific attributes of products or services offered in the marketplace. Understanding how this level of informedness can amplify consumer behaviour provides firms with the opportunity to develop information-based strategies that can encourage their target segment make purchases.

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I’Ve Heard You Have Problems: Cellular Signal Monitoring Through Ue Participatory Sensing, Huiguang Liang, Hyong Kim, Hwee-Pink Tan, Wai-Leong Yeow Dec 2014

I’Ve Heard You Have Problems: Cellular Signal Monitoring Through Ue Participatory Sensing, Huiguang Liang, Hyong Kim, Hwee-Pink Tan, Wai-Leong Yeow

Research Collection School Of Computing and Information Systems

The operating environment of cellular networks can be in a constant state of change. One Singaporean operator expressed difficulty with the coverage assertion (CA) problem of whether regulated minimum coverage is met, especially in urban areas. Currently, the operator manually appraises coverage through laborious and expensive walk/drive-tests. In this paper, we propose Tattle, a distributed, low-cost and comprehensive cellular network measurement collection and processing framework. We exemplify Tattle by leveraging on participating UEs to report on network coverage in real-time. Tattle exploits wireless local-area interfaces to exchange RSCP measurements amongst devices to preserve the co-locality of readings and conserve power. …

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Unisense: A Unified And Sustainable Sensing And Transport Architecture For Large Scale And Heterogeneous Sensor Networks, Yunye Jin, Hwee-Pink Tan Dec 2014

Unisense: A Unified And Sustainable Sensing And Transport Architecture For Large Scale And Heterogeneous Sensor Networks, Yunye Jin, Hwee-Pink Tan

Research Collection School Of Computing and Information Systems

In this paper, we propose UNISENSE, a unified and sustainable sensing and transport architecture for large scale and heterogeneous sensor networks. The proposed architecture incorporates seven principal components, namely, application profiling, node architecture, intelligent network design, network management, deep sensing, generalized participatory sensing, and security. We describe the design and implementation for each component. We also present the deployment and performance of the UNISENSE architecture in four practical applications.

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Orchestrating Service Innovation Using Design Moves: The Dynamics Of Fit Between Service And Enterprise It Architectures, Narayan Ramasubbu, Charles Jason Woodard, Sunil Mithas Dec 2014

Orchestrating Service Innovation Using Design Moves: The Dynamics Of Fit Between Service And Enterprise It Architectures, Narayan Ramasubbu, Charles Jason Woodard, Sunil Mithas

Research Collection School Of Computing and Information Systems

Service science perspectives highlight the central role of information technology (IT) in transforming the design and delivery of services. To discern the mechanisms through which IT impacts service innovation, we explore the dynamics of the relationship between enterprise IT and service architectures, and how these dynamics influence the performance of service innovation projects. We conducted six case studies to investigate how firms orchestrated service innovation, focusing on the design of the service architecture and its relationship to enterprise systems. We synthesize the case findings to develop a set of propositions on the antecedents and consequences of fit (or misfit) between …

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Young People's Attitudes Towards Inter-Ethnic And Inter-Religious Socializing, Courtship And Marriage In Indonesia, Lyn Parker, Chang Yau Hoon, Raihani Raihani Dec 2014

Young People's Attitudes Towards Inter-Ethnic And Inter-Religious Socializing, Courtship And Marriage In Indonesia, Lyn Parker, Chang Yau Hoon, Raihani Raihani

Research Collection School of Social Sciences

This paper presents the attitudes of high school students in Indonesia towards inter-ethnic and inter-religious socializing, courtship and marriage. It also explores how different personal characteristics and social conditions such as gender, ethnicity, type of school and community affect these attitudes. The basic findings come from a survey of more than 3,000 students in senior high schools in five provinces of Indonesia: Jakarta, Yogyakarta, West Sumatra, Central Kalimantan and Bali. Survey data were supplemented with data from interviews and focus group discussions with students and from participant observation in and around the same schools. The authors found that most students …

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Unpacking The Multicultural Experience-Creativity Relationship, Angela K. Y. Leung Dec 2014

Unpacking The Multicultural Experience-Creativity Relationship, Angela K. Y. Leung

Research Collection School of Social Sciences

No abstract provided.

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