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2014

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Corporate Claims Against Director For Paying Bribes On Company's Behalf: Ho Kang Peng V Scintronix (Formerly Ttl Holdings), Wai Yee Wan Nov 2014

Corporate Claims Against Director For Paying Bribes On Company's Behalf: Ho Kang Peng V Scintronix (Formerly Ttl Holdings), Wai Yee Wan

Research Collection Yong Pung How School Of Law

Can a company recover the value of the bribe from a director who has paid the bribe, on behalf of the company, to a third party to secure certain benefits for the company, and where it is not alleged that the director had personally benefitted from the bribe? This question raises several complex issues relating to directors’ standard of care, corporate authorisation and corporate illegality, which were considered by the recent decision of the Singapore Court of Appeal in Ho Kang Peng v Scintronix Corp (formerly known as TTL Holdings).

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On The Road To Watershed Hustings, Tan K. B. Eugene Nov 2014

On The Road To Watershed Hustings, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In a commentary, SMU Associate Professor of Law and former Nominated Member of Parliament Eugene Tan noted that with just 23 months left in the 12th Parliament's five-year term, the next polls, which will have to be held by Jan 9, 2017, promise to be the watershed general election. He also commented that it will almost certainly be a straight fight between the ruling People's Action Party and the Workers' Party, providing some indication of whether Singapore is evolving from a one-party dominant to a two-party political system.

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Saving Sharks By Nudging Change, Tan K. B. Eugene Nov 2014

Saving Sharks By Nudging Change, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In a commentary, SMU Associate Professor of Law and an ‘I’m FINished with FINS’ campaign ambassador Eugene Tan welcomed Parliament’s passing of the Animals and Birds (Amendment) Bill. He commented that the Bill, which seeks to enhance the welfare and responsible care of animals, is important as he felt that our treatment of non-human beings, which share the same space we do, speaks equally to what we are as a society as well as our sense of well-being and responsibility to creatures unable to protect themselves. Citing the silent, unfolding phenomenon of the declining popularity of shark’s fin soup in …

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Difference And The Establishment: An Asian Canadian Senior Pastor's Evangelical Spatiality At Tenth Avenue Alliance Church In Vancouver, Bc, Justin K. H. Tse Nov 2014

Difference And The Establishment: An Asian Canadian Senior Pastor's Evangelical Spatiality At Tenth Avenue Alliance Church In Vancouver, Bc, Justin K. H. Tse

Research Collection School of Social Sciences

This paper explores how the evangelical spatiality of an Asian Canadian senior pastor at a historically Anglo-Saxon congregation has transformed it from an ethnically homogeneous, aging church to a heterogeneously-constituted gathering in an evangelical Protestant tradition. This piece challenges the conventional wisdom of the church growth movement and the new religious economics in the sociology of religion, both of which advise religious groups to construct homogeneity and consensus in efforts for numerical growth over against secularizing forces. The paper argues instead that Pastor Ken Shigematsu’s evangelical spatiality from the mid-1990s to the present must be understood as a theological embrace …

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Can American Christians Care About Hong Kong’S Umbrella Movement?, Justin Kh Tse Nov 2014

Can American Christians Care About Hong Kong’S Umbrella Movement?, Justin Kh Tse

Research Collection School of Social Sciences

It’s a delicate task to write about how American Christians, especially evangelicals, can care about Hong Kong’s Umbrella Movement.

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Jian Ghomeshi And Secular Sexualities, Justin Kh Tse Nov 2014

Jian Ghomeshi And Secular Sexualities, Justin Kh Tse

Research Collection School of Social Sciences

The public conversation swirling around Jian Ghomeshi’s termination from the Canadian Broadcasting Company (CBC) is a grand exercise in secular sexualities.It begins with his Facebook post. Explaining that he was fired because of his private BDSM consensual acts with an ex-girlfriend, he castigates the CBC for both acknowledging that his acts were consensual and then wrongfully pulling the plug on him because he would serve as a poor role model.

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2014 Future Earth Young Scientists Conference On Integrated Science And Knowledge Co-Production For Ecosystems And Human Well-Being, Ivy Shiue, Et. Al. Nov 2014

2014 Future Earth Young Scientists Conference On Integrated Science And Knowledge Co-Production For Ecosystems And Human Well-Being, Ivy Shiue, Et. Al.

Research Collection Yong Pung How School Of Law

Effective integration in science and knowledge co-production is a challenge that crosses research boundaries, climate regions, languages and cultures. Early career scientists are crucial in the identification of, and engagement with, obstacles and opportunities in the development of innovative solutions to complex and interconnected problems. On 25–31 May 2014, International Council for Science and International Social Science Council, in collaboration with the International Network of Next-Generation Ecologists and Institute for New Economic Thinking: Young Scholars Initiative, assembled a group of early career researchers with diverse backgrounds and research perspectives to reflect on and debate relevant issues around ecosystems and human …

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Citizen Ai: Warrior, Jester And Middleman, William A. Callahan Nov 2014

Citizen Ai: Warrior, Jester And Middleman, William A. Callahan

Research Collection School of Social Sciences

Ai Weiwei is famous for crossing boundaries, especially the boundary between art and politics. To appreciate the often contradictory nature ofAis work, this essay employs multiple narratives: " Ai the Heroic Warrior" who cńticizes the Chinese government; " Ai the Court Jester " who plays with the Chinese state and Western media; and "Ai the Middleman " who acts as a broker between China and the West, between young and old people, and between civil society and the state in the PRC. The essay concludes that afourth narrative can bńng together these three stones in a multicoded understanding ofAis work: …

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Cultural Psychological Theory, Kimin Eom, Heejung S. Kim Nov 2014

Cultural Psychological Theory, Kimin Eom, Heejung S. Kim

Research Collection School of Social Sciences

Cultural psychology has revived the original intention of the cognitive revolution in which psychologists aimed to bring meaning to the study of the mind (Bruner, 1990). In contrast to much of psychological research that has been devoted to discovering “pure” context-free psychological mechanisms, the basic assumption of cultural psychology is that the human psyche cannot exist independently of its sociocultural contexts, and therefore, the study of human actions must consider the contexts in which these actions take place (Shweder, 1995). From the beginning, cultural psychology has aimed to understand the mutual influence between psyche and cultural contexts. According to the …

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The Spatial Turn In Social History: A Review Of Recent Research Trends, Fiona Williamson Nov 2014

The Spatial Turn In Social History: A Review Of Recent Research Trends, Fiona Williamson

Research Collection School of Social Sciences

In 2010 Ralph Kingston highlighted how history’s ‘rediscovery of space and place’was firmly on the agenda for the twenty-first century.1 Four years on this article askswhether Kingston’s claim is still valid or whether historians’ passion for all thingsspatial has run its course. This article reviews five recent collections of essays connected by themes of urban space and place, and asks how far the exploration of spaceas a way of understanding the past is still proving an embryonic and constructiveway of approaching the past.

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Empirical Study On International Commercial Mediation And Conciliation, Nadja Alexander Nov 2014

Empirical Study On International Commercial Mediation And Conciliation, Nadja Alexander

Research Collection Yong Pung How School Of Law

In this post on the Kluwer Mediation Blog, the preliminary results from the empirical study on international commercial mediation and conciliation are presented.

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Trade And Divergence In Education Systems, Fali Huang, Pao-Li Chang Nov 2014

Trade And Divergence In Education Systems, Fali Huang, Pao-Li Chang

Research Collection School Of Economics

This article presents a theory on the endogenous choice of education policy and the two-way causal relationship between trade and education systems. A country’s education system determines its talent distribution and comparative advantage; the possibility of trade by raising the returns to the sector of comparative advantage in turn induces countries to further differentiate their education systems and reinforces the initial pattern of comparative advantage. Specifically, the Nash equilibrium choice of education systems by two countries interacting strategically are necessarily more divergent than their autarky choices, and yet less than what is socially optimal for the world.

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Norming Rates And Limit Theory For Some Time-Varying Coefficient Autoregressions, Offer Lieberman, Peter C. B. Phillips Nov 2014

Norming Rates And Limit Theory For Some Time-Varying Coefficient Autoregressions, Offer Lieberman, Peter C. B. Phillips

Research Collection School Of Economics

A time-varying autoregression is considered with a similarity-based coefficient and possible drift. It is shown that the random-walk model has a natural interpretation as the leading term in a small-sigma expansion of a similarity model with an exponential similarity function as its AR coefficient. Consistency of the quasi-maximum likelihood estimator of the parameters in this model is established, the behaviours of the score and Hessian functions are analysed and test statistics are suggested. A complete list is provided of the normalization rates required for the consistency proof and for the score and Hessian function standardization. A large family of unit …

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Rapid: A Toolkit For Reliability Analysis Of Non-Deterministic Systems, Lin Gui, Jun Sun, Yang Liu, Truong Khanh Nguyen, Jin Song Dong Dong Nov 2014

Rapid: A Toolkit For Reliability Analysis Of Non-Deterministic Systems, Lin Gui, Jun Sun, Yang Liu, Truong Khanh Nguyen, Jin Song Dong Dong

Research Collection School Of Computing and Information Systems

Non-determinism in concurrent or distributed software systems (i.e., various possible execution orders among different distributed components) presents new challenges to the existing reliability analysis methods based on Markov chains. In this work, we present a toolkit RaPiD for the reliability analysis of non-deterministic systems. Taking Markov decision process as reliability model, RaPiD can help in the analysis of three fundamental and rewarding aspects regarding software reliability. First, to have reliability assurance on a system, RaPiD can synthesize the overall system reliability given the reliability values of system components. Second, given a requirement on the overall system reliability, RaPiD can distribute …

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Band Selection For Hyperspectral Images Using Probabilistic Memetic Algorithm, Liang Feng, Ah-Hwee Tan, Meng-Hiot Lim, Si Wei Jiang Nov 2014

Band Selection For Hyperspectral Images Using Probabilistic Memetic Algorithm, Liang Feng, Ah-Hwee Tan, Meng-Hiot Lim, Si Wei Jiang

Research Collection School Of Computing and Information Systems

Band selection plays an important role in identifying the most useful and valuable information contained in the hyperspectral images for further data analysis such as classification, clustering, etc. Memetic algorithm (MA), among other metaheuristic search methods, has been shown to achieve competitive performances in solving the NP-hard band selection problem. In this paper, we propose a formal probabilistic memetic algorithm for band selection, which is able to adaptively control the degree of global exploration against local exploitation as the search progresses. To verify the effectiveness of the proposed probabilistic mechanism, empirical studies conducted on five well-known hyperspectral images against two …

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The Role Of Operations Executives In Strategy Making, Lieven Demeester, Arnoud De Meyer, Jovan Grahovac Nov 2014

The Role Of Operations Executives In Strategy Making, Lieven Demeester, Arnoud De Meyer, Jovan Grahovac

Research Collection Lee Kong Chian School Of Business

Creating competitive advantage based on operations capabilities is likely to require much analysis and communication within the operations function. At the same time, much communication and joint strategizing with the top and other functional executives is likely to be needed as well. Hence, given that operations executives have limited time and also have to perform many other routine tasks, they need to manage two tradeoffs. The first one is between the time spent on strategy making and the time spent on everything else. The other is within strategy making, between the time spent on "functional deliberation" within the operations function …

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Modloc: Localizing Multiple Objects In Dynamic Indoor Environment, Xiaonan Guo, Dian Zhang, Kaishun Wu, Lionel M. Ni Nov 2014

Modloc: Localizing Multiple Objects In Dynamic Indoor Environment, Xiaonan Guo, Dian Zhang, Kaishun Wu, Lionel M. Ni

Research Collection School Of Computing and Information Systems

Radio frequency (RF) based technologies play an important role in indoor localization, since Radio Signal Strength (RSS) can be easily measured by various wireless devices without additional cost. Among these, radio map based technologies (also referred as fingerprinting technologies) are attractive due to high accuracy and easy deployment. However, these technologies have not been extensively applied on real environment for two fatal limitations. First, it is hard to localize multiple objects. When the number of target objects is unknown, constructing a radio map of multiple objects is almost impossible. Second, environment changes will generate different multipath signals and severely disturb …

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K-Sketch: Digital Storytelling With Animation Sketches, Richard Christopher Davis, Nur Camellia Binte Zakaria Nov 2014

K-Sketch: Digital Storytelling With Animation Sketches, Richard Christopher Davis, Nur Camellia Binte Zakaria

Research Collection School Of Computing and Information Systems

K-Sketch gives novice animators an easy way to tell stories with animation sketches. It relies on users’ intuitive sense of space and time, and makes animation easy through the use of sketching and demonstration. Our studies have shown that people take naturally to telling stories with K-Sketch, and it is particularly helpful for exploring the timing of events. We also found that K-Sketch is a good collaborative medium for telling stories. In this demonstration we will show how K-Sketch works and explain how these advantages are realized in practice.

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Exploiting Geographical Neighborhood Characteristics For Location Recommendation, Yong Liu, Wei Wei, Aixin Sun, Chunyan Miao Nov 2014

Exploiting Geographical Neighborhood Characteristics For Location Recommendation, Yong Liu, Wei Wei, Aixin Sun, Chunyan Miao

Research Collection School Of Computing and Information Systems

Geographical characteristics derived from the historical check-in data have been reported effective in improving location recommendation accuracy. However, previous studies mainly exploit geographical characteristics from a user’s perspective, via modeling the geographical distribution of each individual user’s check-ins. In this paper, we are interested in exploiting geographical characteristics from a location perspective, by modeling the geographical neighborhood of a location. The neighborhood is modeled at two levels: the instance-level neighborhood defined by a few nearest neighbors of the location, and the region-level neighborhood for the geographical region where the location exists. We propose a novel recommendation approach, namely Instance-Region Neighborhood …

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The Evolution Of Research On Multimedia Travel Guide Search And Recommender Systems, Junge Shen, Zhiyong Cheng, Jialie Shen, Tao Mei, Xinbo Gao Nov 2014

The Evolution Of Research On Multimedia Travel Guide Search And Recommender Systems, Junge Shen, Zhiyong Cheng, Jialie Shen, Tao Mei, Xinbo Gao

Research Collection School Of Computing and Information Systems

The importance of multimedia travel guide search and recommender systems has led to a substantial amount of research spanning different computer science and information system disciplines in recent years. The five core research streams we identify here incorporate a few multimedia computing and information retrieval problems that relate to the alternative perspectives of algorithm design for optimizing search/recommendation quality and different methodological paradigms to assess system performance at large scale. They include (1) query analysis, (2) diversification based on different criteria, (3) ranking and reranking, (4) personalization and (5) evaluation. Based on a comprehensive discussion and analysis of these streams, …

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Traccs: Trajectory-Aware Coordinated Urban Crowd-Sourcing, Cen Chen, Shih-Fen Cheng, Aldy Gunawan, Archan Misra, Koustuv Dasgupta, Deepthi Chander Nov 2014

Traccs: Trajectory-Aware Coordinated Urban Crowd-Sourcing, Cen Chen, Shih-Fen Cheng, Aldy Gunawan, Archan Misra, Koustuv Dasgupta, Deepthi Chander

Research Collection School Of Computing and Information Systems

We investigate the problem of large-scale mobile crowd-tasking, where a large pool of citizen crowd-workers are used to perform a variety of location-specific urban logistics tasks. Current approaches to such mobile crowd-tasking are very decentralized: a crowd-tasking platform usually provides each worker a set of available tasks close to the worker's current location; each worker then independently chooses which tasks she wants to accept and perform. In contrast, we propose TRACCS, a more coordinated task assignment approach, where the crowd-tasking platform assigns a sequence of tasks to each worker, taking into account their expected location trajectory over a wider time …

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Online Transfer Learning, Peilin Zhao, Steven C. H. Hoi, Jialei Wang, Bin Li Nov 2014

Online Transfer Learning, Peilin Zhao, Steven C. H. Hoi, Jialei Wang, Bin Li

Research Collection School Of Computing and Information Systems

This paper investigates a new machine learning framework of Online Transfer Learning (OTL), which aims to attack an online learning task on a target domain by transferring knowledge from some source domain. We do not assume data in the target domain follows the same distribution as that in the source domain, and the motivation of our work is to enhance a supervised online learning task on a target domain by exploiting the existing knowledge that had been learnt from training data in source domains. OTL is in general a challenging problem since data in both source and target domains not …

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Mutual Funds And Information Diffusion: The Role Of Country-Level Governance, Chunmei Lin, Massimo Massa, Hong Zhang Nov 2014

Mutual Funds And Information Diffusion: The Role Of Country-Level Governance, Chunmei Lin, Massimo Massa, Hong Zhang

Research Collection Lee Kong Chian School Of Business

We hypothesize that poor country-level governance, which makes public information less reliable, induces fund managers to increase their use of semipublic information. Utilizing data from international mutual funds and stocks over the 2000-2009 period, we find that semipublic information-related stock rebalancing can be five times higher in countries with the worst quality of governance than in countries with the best. The use of semipublic information increases price informativeness but also increases information asymmetry and reduces stock liquidity. It also intensified the price impact and liquidity crunch during the recent global financial crisis.

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Deep Learning For Content-Based Image Retrieval: A Comprehensive Study, Ji Wan, Dayong Wang, Steven C. H. Hoi, Pengcheng Wu, Jianke Zhu, Yongdong Zhang, Jintao Li Nov 2014

Deep Learning For Content-Based Image Retrieval: A Comprehensive Study, Ji Wan, Dayong Wang, Steven C. H. Hoi, Pengcheng Wu, Jianke Zhu, Yongdong Zhang, Jintao Li

Research Collection School Of Computing and Information Systems

Learning effective feature representations and similarity measures are crucial to the retrieval performance of a content-based image retrieval (CBIR) system. Despite extensive research efforts for decades, it remains one of the most challenging open problems that considerably hinders the successes of real-world CBIR systems. The key challenge has been attributed to the well-known "semantic gap" issue that exists between low-level image pixels captured by machines and high-level semantic concepts perceived by human. Among various techniques, machine learning has been actively investigated as a possible direction to bridge the semantic gap in the long term. Inspired by recent successes of deep …

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Historical Traffic-Tolerant Paths In Road Networks, Pui Hang Li, Man Lung Yiu, Kyriakos Mouratidis Nov 2014

Historical Traffic-Tolerant Paths In Road Networks, Pui Hang Li, Man Lung Yiu, Kyriakos Mouratidis

Research Collection School Of Computing and Information Systems

Historical traffic information is valuable for transportation analysis and planning, as well as for route search services. In view of these applications, we propose the k traffic-tolerant paths problem (TTP) on road networks, which takes a source-destination pair and historical traffic information as input, and returns k paths that minimize the aggregate (historical) travel time. Unlike the shortest path problem, the TTP problem has a combinatorial search space that renders the optimal solution expensive to compute. We propose an exact algorithm and a heuristic algorithm for this problem. Experiments on real traffic data demonstrate the effectiveness of TTP paths and …

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Dynamic Clustering Of Contextual Multi-Armed Bandits, Trong T. Nguyen, Hady W. Lauw Nov 2014

Dynamic Clustering Of Contextual Multi-Armed Bandits, Trong T. Nguyen, Hady W. Lauw

Research Collection School Of Computing and Information Systems

With the prevalence of the Web and social media, users increasingly express their preferences online. In learning these preferences, recommender systems need to balance the trade-off between exploitation, by providing users with more of the "same", and exploration, by providing users with something "new" so as to expand the systems' knowledge. Multi-armed bandit (MAB) is a framework to balance this trade-off. Most of the previous work in MAB either models a single bandit for the whole population, or one bandit for each user. We propose an algorithm to divide the population of users into multiple clusters, and to customize the …

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Generative Modeling Of Entity Comparisons In Text, Maksim Tkachenko, Hady W. Lauw Nov 2014

Generative Modeling Of Entity Comparisons In Text, Maksim Tkachenko, Hady W. Lauw

Research Collection School Of Computing and Information Systems

Users frequently rely on online reviews for decision making. In addition to allowing users to evaluate the quality of individual products, reviews also support comparison shopping. One key user activity is to compare two (or more) products based on a specific aspect. However, making a comparison across two different reviews, written by different authors, is not always equitable due to the different standards and preferences of individual authors. Therefore, we focus instead on comparative sentences, whereby two products are compared directly by a review author within a single sentence. We study the problem of comparative relation mining. Given a set …

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Predicting Effectiveness Of Ir-Based Bug Localization Techniques, Tien-Duy B. Le, Ferdian Thung, David Lo Nov 2014

Predicting Effectiveness Of Ir-Based Bug Localization Techniques, Tien-Duy B. Le, Ferdian Thung, David Lo

Research Collection School Of Computing and Information Systems

Recently, many information retrieval (IR) based bug localization approaches have been proposed in the literature. These approaches use information retrieval techniques to process a textual bug report and a collection of source code files to find buggy files. They output a ranked list of files sorted by their likelihood to contain the bug. Recent approaches can achieve reasonable accuracy, however, even a state-of-the-art bug localization tool outputs many ranked lists where buggy files appear very low in the lists. This potentially causes developers to distrust bug localization tools. Parnin and Orso recently conduct a user study and highlight that developers …

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Stopwatch: A Cloud Architecture For Timing Channel Mitigation, Peng Li, Debin Gao, Michael K Reiter Nov 2014

Stopwatch: A Cloud Architecture For Timing Channel Mitigation, Peng Li, Debin Gao, Michael K Reiter

Research Collection School Of Computing and Information Systems

This article presents StopWatch, a system that defends against timing-based side-channel attacks that arise from coresidency of victims and attackers in infrastructure-as-a-service clouds. StopWatch triplicates each cloud-resident guest virtual machine (VM) and places replicas so that the three replicas of a guest VM are coresident with nonoverlapping sets of (replicas of) other VMs. StopWatch uses the timing of I/O events at a VM’s replicas collectively to determine the timings observed by each one or by an external observer, so that observable timing behaviors are similarly likely in the absence of any other individual, coresident VMs. We detail the design and …

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Player Acceptance Of Human Computation Games: An Aesthetic Perspective, Xiaohui Wang, Dion Hoe Lian Goh, Ee Peng Lim, Adrian Wei Liang Vu Nov 2014

Player Acceptance Of Human Computation Games: An Aesthetic Perspective, Xiaohui Wang, Dion Hoe Lian Goh, Ee Peng Lim, Adrian Wei Liang Vu

Research Collection School Of Computing and Information Systems

Human computation games (HCGs) are applications that use games to harness human intelligence to perform computations that cannot be effectively done by software systems alone. Despite their increasing popularity, insufficient research has been conducted to examine the predictors of player acceptance for HCGs. In particular, prior work underlined the important role of game enjoyment in predicting acceptance of entertainment technology without specifying its driving factors. This study views game enjoyment through a taxonomy of aesthetic experiences and examines the effect of aesthetic experience, usability and information quality on player acceptance of HCGs. Results showed that aesthetic experience and usability were …

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