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2013

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Case Comment: A New Framework For The Implication Of Terms In Fact, Yihan Goh Dec 2013

Case Comment: A New Framework For The Implication Of Terms In Fact, Yihan Goh

Research Collection Yong Pung How School Of Law

In Sembcorp Marine Ltd v PPL Holdings Pte Ltd the Singapore Court of Appeal once again reaffirmed the Singapore courts’ rejection of the approach adopted by Lord Hoffmann in Attorney General of Belize v Belize Telecom Ltd which characterised the implication of a term in fact as a process of contractual interpretation. What may be of interest to practitioners and academics of common law jurisdictions wrestling with the implications of the Belize approach is the Court of Appeal’s prescription of ‘a three-step process’ for the implication of terms in fact, which is accompanied by an in-depth discussion of various conceptual …

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Public Law Theory And Judicial Review In Singapore: Jeyaretnam Kenneth Andrew V Ag [2013] Sgca 56, Benjamin Joshua Ong Dec 2013

Public Law Theory And Judicial Review In Singapore: Jeyaretnam Kenneth Andrew V Ag [2013] Sgca 56, Benjamin Joshua Ong

Research Collection Yong Pung How School Of Law

The Court of Appeal affirmed the High Court’s ruling that the applicant had no locus standito challenge the compatibility of a loan made by the Government to the InternationalMonetary Fund with Art 144(1) of the Constitution. On the interpretation of Art 144(1), therewas no prima facie case of reasonable suspicion that such incompatibility existed. Moreover,the applicant did not have sufficient interest in the matter.

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Relative Value Iteration For Average Reward Semi-Markov Control Via Simulation, Abhijit Gosavi Dec 2013

Relative Value Iteration For Average Reward Semi-Markov Control Via Simulation, Abhijit Gosavi

Engineering Management and Systems Engineering Faculty Research & Creative Works

This paper studies the semi-Markov decision process (SMDP) under the long-run average reward criterion in the simulation-based context. Using dynamic programming, a straightforward approach for solving this problem involves policy iteration; a value iteration approach for this problem involves a transformation that induces an additional computational burden. In the simulation-based context, however, where one seeks to avoid the transition probabilities needed in dynamic programming, value iteration forms a more convenient route for solution purposes. In this paper, hence, we present (to the best of knowledge for the first time) a relative value iteration algorithm for solving average reward SMDPs via …

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Adjust Decision-Making Targets Based On Psychological Thresholds, Jian Liu, Shun Xiang Wu, Si Feng Liu, Qiao Wang Dec 2013

Adjust Decision-Making Targets Based On Psychological Thresholds, Jian Liu, Shun Xiang Wu, Si Feng Liu, Qiao Wang

Electrical and Computer Engineering Faculty Research & Creative Works

This paper study the impact of psychological thresholds (PTs) on the decision maker's (DM's) decision target when making decision. A new approach of decision making is proposed in this paper. First, we construct criterion expected functions according to three different types of criteria: profit type, cost-type and intermediate-type, respectively. Then, we calculate the local degree of satisfaction (LDS) of each object when PTs exists, in order to adjust the initial decision target to make up new decision table. Later, by weighting the criteria reaching the DM's degree of satisfaction (DS) along with information aggregation algorithm, we obtain the overall satisfaction …

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Degrees Of Freedom Of The Single Antenna Gaussian Wiretap Channel With A Helper Irrespective Of The Number Of Antennas At The Eavesdropper, Mohamed Nafea, Aylin Yener Dec 2013

Degrees Of Freedom Of The Single Antenna Gaussian Wiretap Channel With A Helper Irrespective Of The Number Of Antennas At The Eavesdropper, Mohamed Nafea, Aylin Yener

Electrical and Computer Engineering Faculty Research & Creative Works

A Gaussian wiretap channel with a helper, i.e., a cooperative jammer, is considered and its secure degrees of freedom (s.d.o.f.) is computed. Previous work showed that the s.d.o.f. is upper bounded by 1 over 2 in this model when all parties are equipped with one antenna each. In this paper, the more challenging scenario where the eavesdropper has multiple antennas is tackled. Relying on structured signaling and cooperative jamming, specifically, by real interference alignment, it is shown that s.d.o.f. of 1 over 2 is achievable irrespective of the number of antennas the eavesdropper may have as long as the cooperative …

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Study Of Low-Rate Ook And Bpsk Transmission With Pn Sequence In Shallow Water Acoustic Communication, Jinxing Hao, Jintao Wang, Yahong Rosa Zheng Dec 2013

Study Of Low-Rate Ook And Bpsk Transmission With Pn Sequence In Shallow Water Acoustic Communication, Jinxing Hao, Jintao Wang, Yahong Rosa Zheng

Electrical and Computer Engineering Faculty Research & Creative Works

This work shows some results of synchronization and channel estimation in simple underwater acoustic communication systems using On-off keying and binary phase-shift keying.

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Solutions To Finite Horizon Cost Problems Using Actor-Critic Reinforcement Learning, Ivo Grondman, Hao Xu, Sarangapani Jagannathan, Robert Babuska Dec 2013

Solutions To Finite Horizon Cost Problems Using Actor-Critic Reinforcement Learning, Ivo Grondman, Hao Xu, Sarangapani Jagannathan, Robert Babuska

Electrical and Computer Engineering Faculty Research & Creative Works

Actor-critic reinforcement learning algorithms have shown to be a successful tool in learning the optimal control for a range of (repetitive) tasks on systems with (partially) unknown dynamics, which may or may not be nonlinear. Most of the reinforcement learning literature published up to this point only deals with modeling the task at hand as a Markov decision process with an infinite horizon cost function. In practice, however, it is sometimes desired to have a solution for the case where the cost function is defined over a finite horizon, which means that the optimal control problem will be time-varying and …

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Eagle-Eye: A Near-Optimal Statistical Framework For Noise Sensor Placement, Tao Wang, Chun Zhang, Jinjun Xiong, Yiyu Shi Dec 2013

Eagle-Eye: A Near-Optimal Statistical Framework For Noise Sensor Placement, Tao Wang, Chun Zhang, Jinjun Xiong, Yiyu Shi

Electrical and Computer Engineering Faculty Research & Creative Works

The relentless technology scaling has led to significantly reduced noise margin and complicated functionalities. As such, design time techniques per se are less likely to ensure power integrity, resulting in runtime voltage emergencies. To alleviate the issue, recently several works have shed light on the possibilities of dynamic noise management systems. Most of these works rely on on-chip noise sensors to accurately capture voltage emergencies. However, they all assume, either implicitly or explicitly, that the placement of the sensors is given. It remains an open problem in the literature how to optimally place a given number of noise sensors for …

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Two-Stage List Sphere Decoding For Under-Determined Multiple-Input Multiple-Output Systems, Chen Qian, Jingxian Wu, Yahong Rosa Zheng, Zhaocheng Wang Dec 2013

Two-Stage List Sphere Decoding For Under-Determined Multiple-Input Multiple-Output Systems, Chen Qian, Jingxian Wu, Yahong Rosa Zheng, Zhaocheng Wang

Electrical and Computer Engineering Faculty Research & Creative Works

A two-stage list sphere decoding (LSD) algorithm is proposed for under-determined multiple-input multiple-output (UD-MIMO) systems that employ N transmit antennas and Msystem; while Group 2 contains layers M+1 to N that contribute to the rank deficiency of the channel Gram matrix. Tree search algorithms are used for both groups, but with different search radii. A new method is proposed to adaptively adjust the tree search radius of Group 2 based on the statistical properties of the received signals. The employment of the adaptive tree search can significantly reduce the computation complexity. We also propose a modified channel Gram matrix to …

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Zero-Sum Two-Player Game Theoretic Formulation Of Affine Nonlinear Discrete-Time Systems Using Neural Networks, Shahab Mehraeen, Travis Dierks, S. Jagannathan, Mariesa L. Crow Dec 2013

Zero-Sum Two-Player Game Theoretic Formulation Of Affine Nonlinear Discrete-Time Systems Using Neural Networks, Shahab Mehraeen, Travis Dierks, S. Jagannathan, Mariesa L. Crow

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, the nearly optimal solution for discrete-time (DT) affine nonlinear control systems in the presence of partially unknown internal system dynamics and disturbances is considered. The approach is based on successive approximate solution of the Hamilton-Jacobi-Isaacs (HJI) equation, which appears in optimal control. Successive approximation approach for updating control and disturbance inputs for DT nonlinear affine systems are proposed. Moreover, sufficient conditions for the convergence of the approximate HJI solution to the saddle point are derived, and an iterative approach to approximate the HJI equation using a neural network (NN) is presented. Then, the requirement of full knowledge …

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Capacitance Calculation For Via Structures Using An Integral Equation Method Based On Partial Capacitance, Hanfeng Wang, Siming Pan, Jingook Kim, Albert E. Ruehli, Jun Fan Dec 2013

Capacitance Calculation For Via Structures Using An Integral Equation Method Based On Partial Capacitance, Hanfeng Wang, Siming Pan, Jingook Kim, Albert E. Ruehli, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a new integral equation formulation for via structures is developed for the capacitance extraction between vias and planes. The formulation is initially developed for axially symmetric geometries and then extended to axially asymmetric geometries by changing the circular ring cells to arc cells. The extended method can be used to calculate the shared-antipad via structure, which is widely used in high-speed differential signal interconnects. In addition, the image theory is used to handle inhomogeneous media, and a new technique is given to reduce computational costs for via-to-plane structures based on properties of the capacitance-matrix elements. The proposed …

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When There's A Will, There Might Be A Way: The Economic Impact Of Mobile Phones And Entrepreneurial Motivation On Female-Owned Microenterprises, Han Ei Chew, Vigneswara P. Ilavarasan, Mark Levy Dec 2013

When There's A Will, There Might Be A Way: The Economic Impact Of Mobile Phones And Entrepreneurial Motivation On Female-Owned Microenterprises, Han Ei Chew, Vigneswara P. Ilavarasan, Mark Levy

Research Collection Office of Impact

Based on a survey of 598 urban microentrepreneurs in Chennai, India, we contend that access to mobile phones is a necessary but not sufficient condition for achieving certain development goals. We explicate an innovative concept, entrepreneurial expectations, and explore its linkage with mobile phones and microenterprise growth. We found that among high-expectation microentrepreneurs (14 percent of the sample) business use of mobile phones amplified the impact of entrepreneurial expectations and was associated with greater microenterprise growth.

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Coupling Alignments With Recognition For Still-To-Video Face Recognition, Zhiwu Huang, X. Zhao, S. Shan, R. Wang, X. Chen Dec 2013

Coupling Alignments With Recognition For Still-To-Video Face Recognition, Zhiwu Huang, X. Zhao, S. Shan, R. Wang, X. Chen

Research Collection School Of Computing and Information Systems

The Still-to-Video (S2V) face recognition systems typically need to match faces in low-quality videos captured under unconstrained conditions against high quality still face images, which is very challenging because of noise, image blur, low face resolutions, varying head pose, complex lighting, and alignment difficulty. To address the problem, one solution is to select the frames of `best quality' from videos (hereinafter called quality alignment in this paper). Meanwhile, the faces in the selected frames should also be geometrically aligned to the still faces offline well-aligned in the gallery. In this paper, we discover that the interactions among the three tasks-quality …

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Improving Patient Length-Of-Stay In Emergency Department Through Dynamic Queue Management, Kar Way Tan, Hoong Chuin Lau, Francis Chun Yue Lee Dec 2013

Improving Patient Length-Of-Stay In Emergency Department Through Dynamic Queue Management, Kar Way Tan, Hoong Chuin Lau, Francis Chun Yue Lee

Research Collection School Of Computing and Information Systems

Addressing issue of crowding in an Emergency Department (ED) typically takes the form of process engineering or single-faceted queue management strategies such as demand restriction, queue prioritization or staffing the ED. This work provides an integrated framework to manage queue dynamically from both demand and supply perspectives. More precisely, we introduce intelligent dynamic patient prioritization strategies to manage the demand concurrently with dynamic resource adjustment policies to manage supply. Our framework allows decision-makers to select both the demand-side and supply-side strategies to suit the needs of their ED. We verify through a simulation that such a framework improves the patients' …

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Modeling Preferences With Availability Constraints, Bingtian Dai, Hady W. Lauw Dec 2013

Modeling Preferences With Availability Constraints, Bingtian Dai, Hady W. Lauw

Research Collection School Of Computing and Information Systems

User preferences are commonly learned from historical data whereby users express preferences for items, e.g., through consumption of products or services. Most work assumes that a user is not constrained in their selection of items. This assumption does not take into account the availability constraint, whereby users could only access some items, but not others. For example, in subscription-based systems, we can observe only those historical preferences on subscribed (available) items. However, the objective is to predict preferences on unsubscribed (unavailable) items, which do not appear in the historical observations due to their (lack of) availability. To model preferences in …

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Exposing And Mitigating Privacy Loss In Crowdsourced Survey Platforms, Thivya Kandappu, Vijay Sivaraman, Arik Friedman, Roksana Borell Dec 2013

Exposing And Mitigating Privacy Loss In Crowdsourced Survey Platforms, Thivya Kandappu, Vijay Sivaraman, Arik Friedman, Roksana Borell

Research Collection School Of Computing and Information Systems

Crowdsourcing platforms such as Amazon Mechanical Turk and Google Consumer Surveys can profile users based on their inputs to online surveys. In this work we first demonstrate how easily user privacy can be compromised by collating information from multiple surveys. We then propose, develop, and evaluate a crowdsourcing survey platform called Loki that allows users to control their privacy loss via atsource obfuscation.

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Factors Influencing Research Contributions And Researcher Interactions In Software Engineering: An Empirical Study, Subhajit Datta, A. S. M. Sajeev, Santonu Sarkar, Nishant Kumar Dec 2013

Factors Influencing Research Contributions And Researcher Interactions In Software Engineering: An Empirical Study, Subhajit Datta, A. S. M. Sajeev, Santonu Sarkar, Nishant Kumar

Research Collection School Of Computing and Information Systems

Research into software engineering (SE) education is largely concentrated on teaching and learning issues in coursework programs. This paper, in contrast, provides a meta analysis of research publications in software engineering to help with research education in SE. Studying publication patterns in a discipline will assist research students and supervisors gain a deeper understanding of how successful research has occurred in the discipline. We present results from a large scale empirical study covering over three and a half decades of software engineering research publications. We identify how different factors of publishing relate to the number of papers published as well …

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Firm Strategy And The Internet In U.S. Commercial Banking, Kim Huat Goh, Robert J. Kauffman Dec 2013

Firm Strategy And The Internet In U.S. Commercial Banking, Kim Huat Goh, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

As information technology (IT) becomes more accessible, sustaining any competitive advantage from it becomes challenging. This has caused some critics to dismiss IT as a less valuable resource. We argue that, in addition to being able to generate strategic advantage, IT should also be viewed as a strategic necessity that prevents competitive disadvantage in rapidly changing business environments. We test a set of hypotheses on strategic advantage and strategic necessity in the context of Internet banking investments among the entire population of the United States Federal Deposit Insurance Corporation (FDIC) banks from 2003 to 2005. We seek to understand whether …

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Topicsketch: Real-Time Bursty Topic Detection From Twitter, Wei Xie, Feida Zhu, Jing Jiang, Ee Peng Lim, Ke Wang Dec 2013

Topicsketch: Real-Time Bursty Topic Detection From Twitter, Wei Xie, Feida Zhu, Jing Jiang, Ee Peng Lim, Ke Wang

Research Collection School Of Computing and Information Systems

Twitter has become one of the largest platforms for users around the world to share anything happening around them with friends and beyond. A bursty topic in Twitter is one that triggers a surge of relevant tweets within a short time, which often reflects important events of mass interest. How to leverage Twitter for early detection of bursty topics has therefore become an important research problem with immense practical value. Despite the wealth of research work on topic modeling and analysis in Twitter, it remains a huge challenge to detect bursty topics in real-time. As existing methods can hardly scale …

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Little India Riot: The Dog That Did Not Bark, Tan K. B. Eugene Dec 2013

Little India Riot: The Dog That Did Not Bark, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In a commentary, SMU Associate Professor of Law and NMP Eugene Tan said that in the aftermath of the Little India riots, the focus and dominant narrative had been on law and order issues, with the Government emphasising that it was a spontaneous "one-off" event. He said that there was a need to consider if Singapore was prepared to shoulder more of the costs of having a large foreign labour force. However, he also noted that an immediate cutback of the workforce size would be simplistic and is not the solution, as reducing reliance on foreign workers could not be …

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Two Formulas For Success In Social Media: Social Learning And Network Effects, Liangfei Qiu, Qian Tang, Andrew B. Whinston Dec 2013

Two Formulas For Success In Social Media: Social Learning And Network Effects, Liangfei Qiu, Qian Tang, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

This paper examines social learning and network effects that are particularly important for online videos, considering the limited marketing campaigns of user-generated content. Rather than combining both social learning and network effects under the umbrella of social contagion or peer influence, we develop a theoretical model and empirically identify social learning and network effects separately. Using a unique data set from YouTube, we find that both mechanisms have statistically and economically significant effects on video views, and which mechanism dominates depends on the specific video type.

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A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fengtong Wen, Willy Susilo, Guomin Yang Dec 2013

A Secure And Effective Anonymous User Authentication Scheme For Roaming Service In Global Mobility Networks, Fengtong Wen, Willy Susilo, Guomin Yang

Research Collection School Of Computing and Information Systems

In global mobility networks, anonymous user authentication is an essential task for enabling roaming service. In a recent paper, Jiang et al. proposed a smart card based anonymous user authentication scheme for roaming service in global mobility networks. This scheme can protect user privacy and is believed to have many abilities to resist a range of network attacks, even if the secret information stored in the smart card is compromised. In this paper, we analyze the security of Jiang et al.’s scheme, and show that the scheme is in fact insecure against the stolen-verifier attack and replay attack. Then, we …

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An Efficient Partial Shape Matching Algorithm For 3d Tooth Recognition, Zhiyuan Zhang, Xin Zhong, Sim Heng Ong, Kelvin W. C. Foong Dec 2013

An Efficient Partial Shape Matching Algorithm For 3d Tooth Recognition, Zhiyuan Zhang, Xin Zhong, Sim Heng Ong, Kelvin W. C. Foong

Research Collection School Of Computing and Information Systems

As a new biometric strategy, tooth recognition has drawn much attention in recent years. However, most existing work focus mainly on 2D dental radiographs which are less informative and vulnerable to noise and pose variance. Although there are already several attempts on 3D tooth recognition, the results are still inaccurate and performance is inefficient. Moreover, existing methods cannot recognize precisely when the post-mortem data contains incomplete teeth. In this work, we propose an efficient and accurate partial shape matching algorithm to recognize 3D teeth for human identification. Given the ante-mortem and post-mortem teeth models which were taken from patients using …

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An Integrated Model Of Team Motivation And Worker Skills For A Computer-Based Project Management Simulation, Wee Leong Lee Dec 2013

An Integrated Model Of Team Motivation And Worker Skills For A Computer-Based Project Management Simulation, Wee Leong Lee

Research Collection School Of Computing and Information Systems

In this paper, I shall propose an integrated model of worker skills and team motivation for a computer-based simulation game that can be used to provide experiential learning to students. They can act as project managers here without being burdened by the costs and risks associated with unsuccessful projects. I shall present an approach of classifying skills into five different types (relevant to IT projects) and apply a five-point competency scale to each skill type. The Pearson Correlation will be applied to the scores of each skill type to generate an efficiency index that will characterize the effectiveness of a …

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A Simple Integration Of Social Relationship And Text Data For Identifying Potential Customers In Microblogging, Guansong Pang, Shengyi Jiang, Dongyi Chen Dec 2013

A Simple Integration Of Social Relationship And Text Data For Identifying Potential Customers In Microblogging, Guansong Pang, Shengyi Jiang, Dongyi Chen

Research Collection School Of Computing and Information Systems

Identifying potential customers among a huge number of users in microblogging is a fundamental problem for microblog marketing. One challenge in potential customer detection in microblogging is how to generate an accurate characteristic description for users, i.e., user profile generation. Intuitively, the preference of a user’s friends (i.e., the person followed by the user in microblogging) is of great importance to capture the characteristic of the user. Also, a user’s self-defined tags are often concise and accurate carriers for the user’s interests. In this paper, for identifying potential customers in microblogging, we propose a method to generate user profiles via …

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Market Orientation, Embeddedness And The Autonomy And Performance Of Multinational Subsidiaries In An Emerging Economy, Xiaoying Li, Xiaming Liu, Howard Thomas Dec 2013

Market Orientation, Embeddedness And The Autonomy And Performance Of Multinational Subsidiaries In An Emerging Economy, Xiaoying Li, Xiaming Liu, Howard Thomas

Research Collection Lee Kong Chian School Of Business

This paper develops a conceptual framework for market orientation, embeddedness, autonomy and performance of multinational subsidiaries in an emerging economy. We argue that internal and external embeddedness has different performance implications for export- and local market-oriented multinational subsidiaries. Our results, based on a sample of 233 multinational subsidiaries from China, indicate that while external embeddedness has a positive impact on specialized resources of both types of subsidiary, such resources only positively affect the performance of local market-oriented subsidiaries. By contrast, internal embeddedness has a negative impact on specialized resources of both types of subsidiary. Managerial and policy implications are discussed.

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Class Notes Nov 2013

Class Notes

Sooner Lawyer Archive

No abstract provided.

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Giving Highlights Nov 2013

Giving Highlights

Sooner Lawyer Archive

No abstract provided.

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Sooner Lawyer, Fall 2013/Winter 2014 Nov 2013

Sooner Lawyer, Fall 2013/Winter 2014

Sooner Lawyer Archive

No abstract provided.

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Artist Manager – Competencies, Responsibilities, Relations With Artist, Anna Pluszyńska Nov 2013

Artist Manager – Competencies, Responsibilities, Relations With Artist, Anna Pluszyńska

European Management Studies

Which skills should an artist manager have? What is the role of artist manager? What does the relations between manager and artist really mean? These questions were asked to the students of Management of Culture at the Jagiellonian University, and managers working with artists. This article is a summary of their thoughts and the most interesting opinions.

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