Digital Commons Network^™

Multi-Task Zipping Via Layer-Wise Neuron Sharing, Xiaoxi He, Zimu Zhou, Lothar Thiele

Research Collection School Of Computing and Information Systems

Future mobile devices are anticipated to perceive, understand and react to the world on their own by running multiple correlated deep neural networks on-device. Yet the complexity of these neural networks needs to be trimmed down both within-model and cross-model to fit in mobile storage and memory. Previous studies squeeze the redundancy within a single model. In this work, we aim to reduce the redundancy across multiple models. We propose Multi-Task Zipping (MTZ), a framework to automatically merge correlated, pre-trained deep neural networks for cross-model compression. Central in MTZ is a layer-wise neuron sharing and incoming weight updating scheme that …

Voting And Commenting Mechanisms In Ongoing Crowdsourcing Platforms: A Case Study Of Lego Ideas Platform, Khalid Murzig M. Alharbi

Dissertations and Theses Collection (Open Access)

Although crowdsourcing, an innovative online call to help solve problems or generate new ideas, has gained much traction in the business word, not much research has been done on the commenting and voting mechanisms. Most of the research has focussed on the why and how businesses crowdsource. To fill the gap, this research focusses on the commenting and voting mechanisms and aims to analyse the effectiveness of the commenting and voting mechanism in an ongoing crowdsourcing platform, Lego Idea. Using Python software, 8663 comments were extracted from the Lego Ideas platform. These comments were then manually categorised into 10 variables …

Social Software Development: Insights And Solutions, Abhishek Sharma

Dissertations and Theses Collection (Open Access)

Over last few decades, the way software is developed has changed drastically. From being an activity performed by developers working individually to develop standalone programs, it has transformed into a highly collaborative and cooperative activity. Software development today can be considered as a participatory culture, where developers coordinate and engage together to develop software while continuously learning from one another and creating knowledge.

In order to support their communication and collaboration needs, software developers often use a variety of social media channels. These channels help software developers to connect with like-minded developers and explore collaborations on software projects of interest. …

The Business Of Accelerating The Acceleration Of Startups, David Wai Lun Ng

Dissertations and Theses Collection (Open Access)

The cross-domain and cross-border aspects of the Business Accelerator sector has resulted in an ecosystem that has seen actors in the space jostle for clear and competitive positioning. The evolution of Business Accelerators as a business entity, seeking to supply positive interventions to the journey of start-ups, is common to all growth and innovation orientated ecosystems. The ability for Business Accelerator managers to demonstrably impact their subject acceleratees positively has been an under-researched area. Against this background is the rising volume of capital being channeled into funding startups due to the widespread drive for innovation led growth which is increasingly …

Zine 2018: A Look At The Past Year, Smu Libraries

Library Events

The file contains digitized pages from SMU Libraries’ zine-making activity. Pages are individual contributions from staff members reflecting their 2018 SMU journey.

Building A Case For The Replacement Of A Legacy Library Management System, Nilofar Maideen Shameem

Research Collection Library

This chapter presents the feasibility study conducted at SMU Libraries as part of an overall strategy aimed at engaging key stakeholders and getting their buy-in, right from the planning stage, for the migration and implementation of a library management system. The feasibility study was conducted over a period of eight months and involved representatives from various teams within the library as well as the university’s IT department.

Likely Trajectory Of Fed Policy Far From Settled, Thomas Lam, David Fernandez

Research Collection Lee Kong Chian School Of Business

Markets seem to be assuming an almost pre-set path of Fed policy normalization in 2019, including hiking rates and shrinking the balance sheet. In contrast, we see many uncertainties ahead.

Comparison Mining From Text, Maksim Tkachenko

Dissertations and Theses Collection (Open Access)

Online product reviews are important factors of consumers' purchase decisions. They invade more and more spheres of our life, we have reviews on books, electronics, groceries, entertainments, restaurants, travel experiences, etc. More than 90 percent of consumers read online reviews before they purchase products as reported by various consumers surveys. This observation suggests that product review information enhances consumer experience and helps them to make better-informed purchase decisions. There is an enormous amount of online reviews posted on e-commerce platforms, such as Amazon, Apple, Yelp, TripAdvisor. They vary in information and may be written with different experiences and preferences.

If …

The Rise Of Real-Time Retail Payments, Zhiling Guo

MITB Thought Leadership Series

TRANSACTING for just about anything using our mobile phones has become commonplace, and so many consumers will be intrigued to discover that after making a purchase it can still take longer for payment to reach a vendor’s bank account than it does for the purchased goods to be delivered.

Leveraging Artificial Intelligence To Capture The Singapore Rideshare Market, Pradeep Varakantham

MITB Thought Leadership Series

BIKE-SHARING programmes face many of the issues encountered by their counterparts in the carsharing world. But in Singapore, there are a number of factors that have a unique impact on the industry. These include the regulatory structure and the significant fines for those companies who do not abide by these regulations. When this is combined with the competitive nature of the industry in one of the world's most dynamic cities, it becomes clear that first movers who leverage machine learning and prediction will come to dominate the industry

Societal Trust And Corporate Tax Avoidance, Kiridaran Kanagaretnam, Jimmy Lee, Chee Yeow Lim, Gerald Lobo

Research Collection School Of Accountancy

Using aninternational sample of firms from 25 countries and a country-level index for societal trust, we document that societal trust is negatively associated with tax avoidance, even after controlling for other institutional determinants, such as home country legal institutions and tax system characteristics.We explore the effects of two country-level institutional characteristics—strength of lega linstitutions and capital market pressure—on the relation between societal trust and tax avoidance. We find that the relation between trust and tax avoidance is less pronounced when legal institutions in a country are stronger and is more pronounced when capital market pressure is stronger. Finally, we examine …

An Exploratory Study Of How To Navigate Brand Management And Improve Sales Performance Through Control Policies, Pavuth Sriaranyakul

Dissertations and Theses Collection (Open Access)

The aim of this study was to examine the effects of alcohol and tobacco control policies on sales performance when two central elements of marketing, communication and promotion programs, are significantly restricted. The study took place in Thailand, which has some of the strongest tobacco control regulations in the world, along with moderately strong alcohol control regulations. Under these regulations, tobacco firms operate in a dark market, with near-total regulatory prohibition on advertising, promotion, and even the display of their products. Alcohol firms operate in a less restrictive or “grey” market, as they face restrictions on advertising and promotion content, …

Semiparametric Maximum Likelihood Inference For Nonignorable Nonresponse With Callbacks, Zhong Guan, Denis H. Y. Leung, Jing Qin

Research Collection School Of Economics

We model the nonresponse probabilities as logistic functions ofthe outcome variable and other covariates in the survey sampling study withcallback. The identification aspect of this callback model is investigated. Semiparametricmaximum likelihood estimators of the parameters in the responseprobabilities are proposed and studied. As a result, an efficient estimator ofthe mean of the outcome variable is constructed using the estimated responseprobabilities. Moreover, if a regression model for conditional mean of the outcomevariable given some covariate is available, then we can obtain an evenmore efficient estimate of the mean of the outcome variable by fitting the regressionmodel using an adjusted least squares …

Pride And Protectionism: U.S. Trade Policy And Its Impact On Asia, Mark Zandi, Steve Cochrane, Ryan Sweet, Ruth Stroppiana, Katrina Ell

Asian Management Insights

U.S. trade policy and its impact on Asia.

Many of the trade policies of the United States President Donald Trump’s administration are aimed at addressing the perceived adverse impact of trade on the country’s manufacturing employment, and improving trade deals the President sees as not being in U.S. interests. These appear to be worthwhile goals, but crafting trade policy to address them is difficult.

Incentives: Achieving Business Results With The Right Pay Scheme, Fermin Diez

Asian Management Insights

Achieving business results with the right pay scheme.

Much has been said both for and against using incentives to drive business results—be it revenue and profit, or market share. Despite this, there is surprisingly little research, particularly in Asia, to guide practitioners on how different pay models affect decisions that lead to better company performance.

Paris Baguette: A Korean's Brand Success In France, Singapore Management University

Asian Management Insights

it’s official–the bakery chain makes a classic French food item better than the French.

Root-N Consistency Of Intercept Estimators In A Binary Response Model Under Tail Restrictions, Lili Tan, Yichong Zhang

Research Collection School Of Economics

The intercept of the binary response model is irregularly identified when the supports of both the special regressor V and the error term ε are the whole real line. This leads to the estimator of the intercept having potentially a slower than √n convergence rate, which can result in a large estimation error in practice. This paper imposes addition tail restrictions which guarantee the regular identification of the intercept and thus the √n-consistency of its estimator. We then propose an estimator that achieves the √n rate. Finally, we extend our tail restrictions to a full-blown model with endogenous regressors.

Mild-Explosive And Local-To-Mild-Explosive Autoregressions With Serially Correlated Errors, Yiu Lim Lui, Weilin Xiao, Jun Yu

Research Collection School Of Economics

This paper firstly extends the results of Phillips and Magdalinos (2007a) by allowing for anti-persistent errors in mildly explosive autoregressive models. It is shown that the Cauchy asymptotic theory remains valid for the least squares (LS) estimator. The paper then extends the results of Phillips, Magdalinos and Giraitis (2010) by allowing for serially correlated errors of various forms in local-to-mild-explosive autoregressive models. It is shown that the result of smooth transition in the limit theory between local-to-unity and mild-explosiveness remains valid for the LS estimator. Finally, the limit theory for autoregression with intercept is developed.

Against Populist Isolationism: New Asian Regionalism And Global South Powers In International Economic Law, Pasha L. Hsieh

Research Collection Yong Pung How School Of Law

This article provides the most up-to-date examination of the Regional Comprehensive Economic Partnership (RCEP), which is poised to become the world’s largest free trade agreement (FTA). It argues that the 16-country mega-FTA will galvanize the paradigm shift in Asian regionalism and build a normative foundation for the Global South in international economic law. Based on intertwined theoretical and substantive claims, this article opens an inquiry into the assertive legalism of developing nations in the new regional economic order. It further manifests the pivotal force of emerging economies against populist isolationism in the Trump era that undermines the neoliberal foundation of …

Book Review: The Negotiator's Desk Reference, Dorcas Quek Anderson

Research Collection Yong Pung How School Of Law

Negotiation theory and practice have evolved at a phenomenal pace since thepublication of Fisher and Ury’s seminal work Getting to Yes.1 The sheer breadth of topics inThe Negotiator’s Desk Reference2 (“NDR”) attests to how negotiation has advanced as a multidisciplinary field. Published in 2017 to replace its predecessor The Negotiator’s Fieldbook,3the NDR comprises 101 chapters written by very prominent academics and practitioners drawnfrom a wide range of professions, disciplines and cultures. According to its editors, more thanhalf of the contents are new, reflecting the new frontiers of the negotiation field.

Credit Assignment For Collective Multiagent Rl With Global Rewards, Duc Thien Nguyen, Akshat Kumar, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Scaling decision theoretic planning to large multiagent systems is challenging due to uncertainty and partial observability in the environment. We focus on a multiagent planning model subclass, relevant to urban settings, where agent interactions are dependent on their collective influence'' on each other, rather than their identities. Unlike previous work, we address a general setting where system reward is not decomposable among agents. We develop collective actor-critic RL approaches for this setting, and address the problem of multiagent credit assignment, and computing low variance policy gradient estimates that result in faster convergence to high quality solutions. We also develop difference …

Applying Design Thinking To Student Outreach Projects: Experiences From An Information Systems School, Swapna Gottipati, Venky Shankararaman, Alan Megargel

Research Collection School Of Computing and Information Systems

As countries turn into Smart Nations, Infocom Technology plays a key role in enhancing their competitiveness through high skilled workforces. Reaching to younger generations and attracting them to computing programs such as Information Systems (IS) and Computer Science (CS) is a key challenge faced by universities. Many high quality students from junior colleges either don’t choose IS programs or choose IS programs as their last option during the application process. A School of Information Systems (SIS) from a large metropolitan university decided to implement an innovative outreach program to attract high quality high school aka Junior College (JC) students. JC …

Design And Implementation Of Decision Support For Traffic Management At Multipurpose Port Gates, Ketki Kulkarni, Hoong Chuin Lau, Hai Wang, Sathyavarathan Sivabalasingam, Trong Khiem Tran

Research Collection School Of Computing and Information Systems

Effective traffic management can help port operators gain a competitive edge in service level and efficient use of limited resources. One critical aspect of traffic management is gate operations management, ensuring a good customer experience to logistic carriers and considering the impact of congestion in and around the port. In this paper, we describe the design and implementation of a decision support tool to help gate operators plan for future scenarios with fluctuating demand and limited resources. We propose a simulation optimization framework which incorporates theoretical results from queuing theory to approximate complex multi-lane multi-server systems. Our major contribution in …

Sybmatch: Sybil Detection For Privacy-Preserving Task Matching In Crowdsourcing, Jiangang Shu, Ximeng Liu, Kan Yang, Yinghui Zhang, Xiaohua Jia, Robert H. Deng

Research Collection School Of Computing and Information Systems

The past decade has witnessed the rise of crowdsourcing, and privacy in crowdsourcing has also gained rising concern in the meantime. In this paper, we focus on the privacy leaks and sybil attacks during the task matching, and propose a privacy-preserving task matching scheme, called SybMatch. The SybMatch scheme can simultaneously protect the privacy of publishers and subscribers against semi-honest crowdsourcing service provider, and meanwhile support the sybil detection against greedy subscribers and efficient user revocation. Detailed security analysis and thorough performance evaluation show that the SybMatch scheme is secure and efficient.

Building A Smart Nation: Singapore's Digital Journey, Siu Loon Hoe

Research Collection School Of Computing and Information Systems

Singapore’s smart nation journey began when the drive was officially announced by the country’s Prime Minister Lee Hsien Loong in November 2014 (Lee, 2014). The vision is to improve people’s lives and create more opportunities through information and communications technology (ICT). The smart nation drive is an effort by the government to co-create innovative, people-centric solutions with citizens and businesses. The three priority areas, underpinned by cyber security, are elderly, transportation and data. Since then, various digital strategies and policies have been further articulated, and digital programmes and projects implemented in the country.

Online Learning Tool On External Financing Needs, Yuanto Kusnadi

Research Collection School Of Accountancy

In collaboration with colleagues at the Centre ofTeaching Excellence (CTE), I have developed an innovative online learningobject on External Financing Needs. This tool is designed to introduce a noveland refreshing way in teaching accounting and finance concepts to students andto create a more interactive learning experience in the classroom. The online learning tool is used in the two courses:Accounting for Entrepreneurs and Financial Management, to explain the relevantconcepts related to financial forecasting and financial planning. One unique feature about the learning object is that itprovides instantaneousfeedback to students as they can learn whether the numbers theyprovide are correct/wrong (as indicated …

A Simple Proximal Stochastic Gradient Method For Nonsmooth Nonconvex Optimization, Zhize Li, Jian Li

Research Collection School Of Computing and Information Systems

We analyze stochastic gradient algorithms for optimizing nonconvex, nonsmooth finite-sum problems. In particular, the objective function is given by the summation of a differentiable (possibly nonconvex) component, together with a possibly non-differentiable but convex component. We propose a proximal stochastic gradient algorithm based on variance reduction, called ProxSVRG+. Our main contribution lies in the analysis of ProxSVRG+. It recovers several existing convergence results and improves/generalizes them (in terms of the number of stochastic gradient oracle calls and proximal oracle calls). In particular, ProxSVRG+ generalizes the best results given by the SCSG algorithm, recently proposed by [Lei et al., NIPS'17] for …

Quest For Relevance: Whither The Asean Charter In Shaping A Shared Regional Identity And Values, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

Promulgated in 2007, the Charter of the Association of Southeast Asian Nations (ASEAN) reaffirms ASEAN’s longstanding policy of non-interference in member-states’ internal affairs and the retention of consultation and consensus as fundamental tenets of decision-making in ASEAN. This essay considers the role of soft law in the interpretation and development of the ASEAN Charter. It also considers whether the Charter will help ASEAN achieve integration as well as promote democracy, human rights and development in an immensely diverse region comprising half a billion people. The essay argues that although the Charter is a binding legal instrument, the text enables a …

Stamp Duty Relief And Anti-Avoidance Provisions, Vincent Ooi

Research Collection Yong Pung How School Of Law

Reliefs from stamp dutyIn certain circumstances, stamp duty reliefs may be applicable to instruments that would otherwise be dutia-ble, provided that the reliefs are claimed within specified statutory time limits. Such reliefs are distinct from stamp duty remissions, which may be granted by the Minister through the exercise of his powers under Sec-tion 74 of the Stamp Duties Act (Cap 312, 2006 Ed.). Under Section 74 of the Stamp Duties Act, the Minister has the discretion to prospectively or retrospectively reduce or remit duties subject to such conditions as he may impose. This power may be exercised on a general …

"Decisional" And "Operational" Negligence, Vincent Ooi

Research Collection Yong Pung How School Of Law

This article draws a distinction between “decisional” negligence, which concerns the negligence exhibited by a professional advising his client in a decision to pursue a course of action, and “operational” negligence which concerns the manner in which a professional acts upon his client’s instructions to pursue a course of action. With the advent of Montgomery, the distinction between the two kinds of negligence has been thrown into focus in the context of medical negligence. The distinction is an important one for two reasons: 1) the “standard of care” test to be applied; and 2) the measure of damages.