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Articles 7171 - 7200 of 9289

Full-Text Articles in Social and Behavioral Sciences

Context-Aware Nearest Neighbor Query On Social Networks, Yazhe Wang, Baihua Zheng Oct 2011

Context-Aware Nearest Neighbor Query On Social Networks, Yazhe Wang, Baihua Zheng

Research Collection School Of Computing and Information Systems

Social networking has grown rapidly over the last few years, and social networks contain a huge amount of content. However, it can be not easy to navigate the social networks to find specific information. In this paper, we define a new type of queries, namely context-aware nearest neighbor (CANN) search over social network to retrieve the nearest node to the query node that matches the context specified. CANN considers both the structure of the social network, and the profile information of the nodes. We design ahyper-graph based index structure to support approximated CANN search efficiently.

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Virality Modeling And Analysis, Tuan Anh Hoang, Ee-Peng Lim Oct 2011

Virality Modeling And Analysis, Tuan Anh Hoang, Ee-Peng Lim

Research Collection School Of Computing and Information Systems

Virality is a virus-like behavior that allows a piece of information to widely and quickly diffuse within the network of adopters through word of mouth. It is about how easy users propagate information to their friends and friends of friends by means of diffusion. While virality of information has several interesting applications, there are much research to be conducted on virality. These areas of research include understanding the mechanism of virality, modeling the virality both qualitatively and quantitatively, and applying virality to applications such as marketing, event detection, and others. In this paper, we survey existing works on quantitative models …

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A Survey Of Information Diffusion Models And Relevant Problems, Minh Duc Luu, Tuan Anh Hoang, Ee-Peng Lim Oct 2011

A Survey Of Information Diffusion Models And Relevant Problems, Minh Duc Luu, Tuan Anh Hoang, Ee-Peng Lim

Research Collection School Of Computing and Information Systems

There has been tremendous interest in diffusion of innovations or information in a social system. Nowadays, social networks (offline as well as online) are considered as important medium for diffusion and large amount of research has been conducted to understand the dynamics of diffusion in social networks. In this work, we review some of the models proposed for diffusion in social networks. We also highlight the major features of these models by dividing the surveyed models into two categories: non-network and network diffusion models. The former refers to user communities without any knowledge about the user relationship network and the …

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On Modeling Virality Of Twitter Content, Tuan Anh Hoang, Ee Peng Lim, Palakorn Achananuparp, Jing Jiang, Feida Zhu Oct 2011

On Modeling Virality Of Twitter Content, Tuan Anh Hoang, Ee Peng Lim, Palakorn Achananuparp, Jing Jiang, Feida Zhu

Research Collection School Of Computing and Information Systems

Twitter is a popular microblogging site where users can easily use mobile phones or desktop machines to generate short messages to be shared with others in realtime. Twitter has seen heavy usage in many recent international events including Japan earthquake, Iran election, etc. In such events, many tweets may become viral for different reasons. In this paper, we study the virality of socio-political tweet content in the Singapore’s 2011 general election (GE2011). We collected tweet data generated by about 20K Singapore users from 1 April 2011 till 12 May 2011, and the follow relationships among them. We introduce several quantitative …

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Measuring An Organisation’S Innovation Climate: A Case Study From Singapore, Siu Loon Hoe Oct 2011

Measuring An Organisation’S Innovation Climate: A Case Study From Singapore, Siu Loon Hoe

Research Collection School Of Computing and Information Systems

Purpose: The article aims to discuss the six key factors that were proposed and included in the design of a customized innovation climate questionnaire. Design/methodology/approach: The implementation case study of an innovation climate survey for a Singapore‐based real estate group is presented. In particular, the design of the questionnaire and selection of key factors to be measured are discussed. Findings: While not a “rigorous” instrument in the academic sense, the article can guide managers and organization development professionals to better gauge an organization's innovation climate and deepen the understanding of innovation culture. Originality/value: This article contributes to the existing innovation …

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The Impact Of Ifrs On Accounting Quality In A Regulated Market: An Empirical Study Of China, Chunhui Liu, Lee J. Yao, Nan Hu, Ling Liu Oct 2011

The Impact Of Ifrs On Accounting Quality In A Regulated Market: An Empirical Study Of China, Chunhui Liu, Lee J. Yao, Nan Hu, Ling Liu

Research Collection School Of Computing and Information Systems

As more countries consider the adoption of International Financial Reporting Standards (IFRS) that are based on practices prevalent in the English-speaking countries with free markets, it’s increasingly important to understand the impact of IFRS on countries of different institutional, economic, and political environments. This article reports a study that examines the impact of IFRS on accounting quality in a regulated market, China, where new substantially IFRS-convergent accounting standards became mandatory for listed firms in 2007. Accounting quality is examined for the period 2005 to 2008 with only firms mandated to follow the new standards. The empirical results generally indicate that …

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Analyses Of Nocturnal Temperature Cooling-Rate Response To Historical Local-Scale Urban Land-Use/Land Cover Change, Winston T. L. Chow, Bohumil M. Svoma Sep 2011

Analyses Of Nocturnal Temperature Cooling-Rate Response To Historical Local-Scale Urban Land-Use/Land Cover Change, Winston T. L. Chow, Bohumil M. Svoma

Research Collection School of Social Sciences

Urbanization affects near-surface climates by increasing city temperatures relative to rural temperatures [i.e., the urban heat island (UHI) effect]. This effect is usually measured as the relative temperature difference between urban areas and a rural location. Use of this measure is potentially problematic, however, mainly because of unclear ‘‘rural’’ definitions across different cities. An alternative metric is proposed—surface temperature cooling/warming rates—that directly measures how variations in land-use and land cover (LULC) affect temperatures for a specific urban area. In this study, the impact of local-scale (,1 km2 ), historical LULC change was examined on near-surface nocturnal meteorological station temperatures sited …

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How The Mindless Growth Mantra Of Modern Economics Is Failing Us, Singapore Management University Sep 2011

How The Mindless Growth Mantra Of Modern Economics Is Failing Us, Singapore Management University

Perspectives@SMU

Just three years after the 2008 global financial crisis, the world wonders, yet again, if another global downturn might be looming.

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Inspiring Change: The Roles Of Women And Their Communities, Singapore Management University Sep 2011

Inspiring Change: The Roles Of Women And Their Communities, Singapore Management University

Perspectives@SMU

'Change' is a word often employed (and frequently abused) by politicians, industrialists, artists and leaders of various domains as a rallying call. Its effects can be profound on those discontented with the status quo and perhaps uninviting for those already contented with the way things are.

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Growing Singapore's Funny Bone: Laughing In The Face Of Dangers, Pitfalls And Politicians, Singapore Management University Sep 2011

Growing Singapore's Funny Bone: Laughing In The Face Of Dangers, Pitfalls And Politicians, Singapore Management University

Perspectives@SMU

There was once a time in Singapore when the mocking of authority figures would be regarded as a no-go zone. Leaders and politicians were rarely subjects of comedy for such jokes would be considered too distasteful and disrespectful for mass consumption. Acceptable local comedy, as such, was limited to the physical and sometimes lowbrow variety.

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Selling Singaporeans On The Isa, Tan K. B. Eugene Sep 2011

Selling Singaporeans On The Isa, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

Assistant Professor of Law Eugene Tan said that allowing judges to review both procedural requirements of preventive detention orders issued under the Internal Security Act would help to bolster public confidence and trust.

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Positioning The Booty-Call Relationship On The Spectrum Of Relationships: Sexual But More Emotional Than One-Night Stands, Peter K. Jonason, Norman P. Li, Jessica Richardson Sep 2011

Positioning The Booty-Call Relationship On The Spectrum Of Relationships: Sexual But More Emotional Than One-Night Stands, Peter K. Jonason, Norman P. Li, Jessica Richardson

Research Collection School of Social Sciences

Most research on human sexuality has focused on long-term pairbonds and one-night stands. However, growing evidence suggests there are relationships that do not fit cleanly into either of those categories. One of these relationships is a ‘‘booty-call relationship.’’ The purpose of this study was to describe the sexual and emotional nature of booty-call relationships by (a) examining the types of emotional and sexual acts involved in booty-call relationships and (b) comparing the frequency of those acts in booty-call relationships to one-night stands and serious long-term relationships. In addition, the manner in which sociosexuality is associated with the commission of these …

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Commentary: Crisis Is Danger Plus Opportunity, Ann Florini Sep 2011

Commentary: Crisis Is Danger Plus Opportunity, Ann Florini

Research Collection School of Social Sciences

John Clark has given us a great deal to be depressed about, in the story he tells about theroles of civil society in addressing the compelling threats of climate change and ecosystemcollapse. Fortunately, that account is incomplete. There is another half to the story, onethat provides a more hopeful picture. Indeed, a closer look at what is happening in thecivil society/environmental arena tells us much about humanity’s prospects for dealingwith climate change. It tells us even more about the rapidly evolving nature of civilsociety and humanity’s capacity for creative collective action. And from both perspectives,the glass, rather than being empty—or …

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Better Ways To Run The World, Ann Florini Sep 2011

Better Ways To Run The World, Ann Florini

Research Collection School of Social Sciences

Wherever government ministers and international bureaucrats gather to debate and shape the global economy, hordes of protesters converge. And now some of the groups involved in the coordinated protests plan to diversify their targets to include multinational corporations. The protests themselves are merely the visible tip of a vast iceberg of transnational networks tying together people from all parts of the world who share grievances about the current rules governing global economic integration. Transnational civil society networks should not and will not end up making the rules themselves: the final decisions must rest with governments. But the protest movement has …

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A Sentinel To Good Governance, Tan K. B. Eugene Sep 2011

A Sentinel To Good Governance, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

Assistant Prof Eugene Tan reviews S.R. Nathan's 12-year term as Head of State, and suggests President Nathan played a key role in defining the functions of the Elected Presidency.

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Introduction To The Special Issue: Governing Energy In A Fragmented World, Ann Florini, Navroz K. Dubash Sep 2011

Introduction To The Special Issue: Governing Energy In A Fragmented World, Ann Florini, Navroz K. Dubash

Research Collection School of Social Sciences

This special issue brings together leading experts from Asia, Europe and North America to examine the international institutions, national governance mechanisms and financing systems that together will determine the future of the energy sector. The enormous environmental externalities imposed by fossil fuel extraction and consumption, the devastating corruption and human rights abuses that have accompanied this energy system, and the geopolitical vulnerabilities that have arisen because of the uneven natural distribution of these resources, have occasioned enormous handwringing - but not, yet, a shift to a more rational system of providing energy services. Although national governments play the dominant role …

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Information Disclosure In Global Energy Governance, Ann Florini, Saleena Saleem Sep 2011

Information Disclosure In Global Energy Governance, Ann Florini, Saleena Saleem

Research Collection School of Social Sciences

The lack of global consensus on how to deal with complex energy governance challenges has led to the emergence of information disclosure initiatives as governance tools in and of themselves. This article assesses the effectiveness of disclosure mechanisms as tools of energy governance by looking at the motivations and desired outcomes behind a series of disclosure-based initiatives in the energy sector, namely: making energy markets work more efficiently; inducing corporations to internalize their climate change externalities; and improving democratic processes that lead to better energy governance outcomes. The disclosure initiatives assessed in this article adopt different strategies to achieve their …

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Communication, Organizing And Organization: An Overview And Introduction To The Special Issue, Francois Cooren, Timothy Kuhn, Joep P. Cornelissen, Timothy Adrian Robert Clark Sep 2011

Communication, Organizing And Organization: An Overview And Introduction To The Special Issue, Francois Cooren, Timothy Kuhn, Joep P. Cornelissen, Timothy Adrian Robert Clark

Research Collection Lee Kong Chian School Of Business

This paper provides an overview of previous work that has explored the processes and mechanisms by which communication constitutes organizing (as ongoing efforts at coordination and control of activity and knowledge) and organizations (as collective actors that are 'talked' into existence). We highlight differences between existing theories and analyses grounded in communication-as-constitutive (CCO) perspectives and describe six overarching premises for such perspectives; in so doing, we sharpen and bound the explanatory power of CCO perspectives for organization studies more generally. Building on these premises, we develop an agenda for further research, call for greater cross-fertilization between the communication and organization …

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When Does The Socio-Cultural Context Matter? Communal Orientation And Entrepreneurs' Resource Accumulation Efforts In Africa, Jane N. O. Khayesi, Gerard George Sep 2011

When Does The Socio-Cultural Context Matter? Communal Orientation And Entrepreneurs' Resource Accumulation Efforts In Africa, Jane N. O. Khayesi, Gerard George

Research Collection Lee Kong Chian School Of Business

We examined the effect of entrepreneurs’communal orientation and social capital on entrepreneurs’ acquisition of resources, and the cost of raising those resources. Using an errors-in-variables estimation in a sample of 242 Ugandan entrepreneurs from Kampala, we find that shared identity is positively associated with the quantity of resources raised by entrepreneurs, whereas shared identity and communal orientation are associated with a higher cost of raising resources. Further, communal orientation positively moderates the relationship between kin composition and the quantity of resources raised; whereas communal orientation negatively moderates the relationship between trust, shared identity, and resources. In contrast, a high communal …

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The Validity And Incremental Validity Of Knowledge Tests, Low-Fidelity Simulations, And High-Fidelity Simulations For Predicting Job Performance In Advanced-Level High-Stakes Selection, Filip Lievens, Fiona Patterson Sep 2011

The Validity And Incremental Validity Of Knowledge Tests, Low-Fidelity Simulations, And High-Fidelity Simulations For Predicting Job Performance In Advanced-Level High-Stakes Selection, Filip Lievens, Fiona Patterson

Research Collection Lee Kong Chian School Of Business

In high-stakes selection among candidates with considerable domain-specific knowledge and experience, investigations of whether high-fidelity simulations (assessment centers; ACs) have incremental validity over low-fidelity simulations (situational judgment tests; SJTs) are lacking. Therefore, this article integrates research on the validity of knowledge tests, low-fidelity simulations, and high-fidelity simulations in advanced-level high-stakes settings. A model and hypotheses of how these 3 predictors work in combination to predict job performance were developed. In a sample of 196 applicants, all 3 predictors were significantly related to job performance. Both the SJT and the AC had incremental validity over the knowledge test. Moreover, the AC …

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Designing Pareto-Optimal Selection Systems: Formalizing The Decisions Required For Selection System Development, Wilfried De Corte, Paul R. Sackett, Filip Lievens Sep 2011

Designing Pareto-Optimal Selection Systems: Formalizing The Decisions Required For Selection System Development, Wilfried De Corte, Paul R. Sackett, Filip Lievens

Research Collection Lee Kong Chian School Of Business

The article presents an analytic method for designing Pareto-optimal selection systems where the applicants belong to a mixture of candidate populations. The method is useful in both applied and research settings. In an applied context, the present method is the first to assist the selection practitioner when deciding on 6 major selection design issues: (1) the predictor subset, (2) the selection rule, (3) the selection staging, (4) the predictor sequencing, (5) the predictor weighting, and (6) the stage retention decision issue. From a research perspective, the method offers a unique opportunity for studying the impact and relative importance of different …

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Mapping Global Energy Governance, Navroz K. Dubash, Ann Florini Sep 2011

Mapping Global Energy Governance, Navroz K. Dubash, Ann Florini

Research Collection School of Social Sciences

The challenges inherent in energy policy form an increasingly large proportion of the great issues of global governance. These energy challenges reflect numerous transnational market or governance failures, and their solutions are likely to require a number of global components that can support or constrain national energy policy. Governing energy globally requires approaches that can simultaneously cope with three realities: the highly fragmented and conflictual nature of the current inter-state system's efforts to govern energy; the diversity of institutions and actors relevant to energy; and the dominance of national processes of energy decision making that are not effectively integrated into …

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Application Of An Agent-Based System As A Virtual Environment For The Formulation Of Policies, Araz Taeihagh, René Bañares-Alcántara, Moshe Givoni Sep 2011

Application Of An Agent-Based System As A Virtual Environment For The Formulation Of Policies, Araz Taeihagh, René Bañares-Alcántara, Moshe Givoni

Research Collection School of Social Sciences

The growth in the interdependence and complexity of socio-economic systems requires the development of tools and techniques to aid us in the formulation of better policies. Our efforts focus towards developing methodologies and support tools for better policy design and formulation. In this paper, we focus on the development of an agent-based approach to create a virtual environment for the exploration and analysis of different configurations of policy measures in order to build policy packages and test the effects of changes and uncertainties while formulating policies. By developing systematic approaches for the formulation andanalysis of policies it is possible to …

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The Wto Trade Effect, Pao Li Chang, Myoung-Jae Lee Sep 2011

The Wto Trade Effect, Pao Li Chang, Myoung-Jae Lee

Research Collection School Of Economics

This paper re-examines the GATT/WTO membership effect on bilateral trade flows, using nonparametric methods including pair-matching, permutation tests, and a Rosenbaum (2002) sensitivity analysis. Together, these methods provide an estimation framework that is robust to misspecification bias, allows general forms of heterogeneous membership effects, and addresses potential hidden selection bias. This is in contrast to most conventional parametric studies on this issue. Our results suggest large GATT/WTO trade-promoting effects that are robust to various restricted matching criteria, alternative GATT/WTO indicators, non-random incidence of positive trade flows, inclusion of multilateral resistance terms, and different matching methodologies.

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Effects Of Cultural Ethnicity, Firm Size, And Firm Age On Senior Executives’ Trust In Their Overseas Business Partners: Evidence From China, Crystal X. Jiang, Roy Y. J. Chua, Masaaki Kotabe, Janet Y. Murray Sep 2011

Effects Of Cultural Ethnicity, Firm Size, And Firm Age On Senior Executives’ Trust In Their Overseas Business Partners: Evidence From China, Crystal X. Jiang, Roy Y. J. Chua, Masaaki Kotabe, Janet Y. Murray

Research Collection Lee Kong Chian School Of Business

We investigate trust relationships between senior business executives and their overseas partners. Drawing on the similarity-attraction paradigm, social categorization theory, and the distinction between cognition- and affect-based trust, we argue that executives trust their overseas partners differently, depending on the partners’ cultural ethnicity. In a field survey of 108 Chinese senior executives, we found that these executives have higher affect-based trust in overseas partners of the same cultural ethnicity as themselves; cognition-based trust is associated with affect-based trust differently when overseas partners are of the same or different cultural ethnicity. We also examine the role of relative firm size and …

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Money, Bargaining, And Risk Sharing, Nicolas L. Jacquet, Serene Tan Sep 2011

Money, Bargaining, And Risk Sharing, Nicolas L. Jacquet, Serene Tan

Research Collection School Of Economics

We investigate the dual role of money as a self-insurance device and a means of payment when perfect risk sharing is not possible, and when the two roles of money are disentangled. We use a variant of Lagos–Wright (2005) where agents face a risk in the centralized market (CM): in the decentralized market (DM) money’s main role is as a means of payment, while in the CM it is as a self-insurance device. We show that state-contingent inflation rates can improve agents’ ability to self-insure in the CM, thereby improving the terms of trade in the DM. We then characterize …

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Embodied Cultural Cognition: Situating The Study Of Embodied Cognition In Socio-Cultural Contexts, Angela K. Y. Leung, Lin Qiu, Lay See Ong, Kim-Pong Tam Sep 2011

Embodied Cultural Cognition: Situating The Study Of Embodied Cognition In Socio-Cultural Contexts, Angela K. Y. Leung, Lin Qiu, Lay See Ong, Kim-Pong Tam

Research Collection School of Social Sciences

Embodiment research has demonstrated that cognition is grounded in bodily interactions with the environment and that abstract concepts are tied to the body’s sensory and motor systems. Building upon this embodiment perspective and advancing our understanding, we discuss the extension of embodied cultural cognition. We propose that some associations between bodily experiences and abstract concepts are not randomly formed; rather, the development of such associations is situated in a socio-cultural context, informed by cultural imperatives, values, and habits. We draw evidence supporting this view of embodied cultural cognition in body–mind linkages manifested in construal of emotions, time perception, person perception, …

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The International Energy Agency In Global Energy Governance, Ann Florini Sep 2011

The International Energy Agency In Global Energy Governance, Ann Florini

Research Collection School of Social Sciences

The International Energy Agency (IEA) is the organization that, despite its constrained membership, is as close as the world currently comes to a global focal point on the key energy governance arenas. Although when the IEA was established in the 1970s it had the specific and limited purpose of enabling the world's leading oil consumers to undertake collective action in response to oil supply shocks, it now finds itself at the center of many of the key developments in global energy governance. Its evolution and current challenges reflect the key themes of this special issue: the competition between state and …

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Visiting 'Home': Contacts With The Homeland, Self-Reflexivity And Emergent Migrant Bilingual Identities, Alan Williams, Charlotte Setijadi Sep 2011

Visiting 'Home': Contacts With The Homeland, Self-Reflexivity And Emergent Migrant Bilingual Identities, Alan Williams, Charlotte Setijadi

Research Collection School of Social Sciences

There has been increasing interest recently in the way that additional language learners' identities are affected and changed by their experiences in developing proficiency in another language. In the case of migrants, this is also affected by familiarity with their new country and language, and their transition into life in a new social and cultural environment. National and linguistic elements of identity are only part of people's multifaceted identities. However, these are of particular significance for language teachers and central to identity shifts involved in language acquisition and settlement in a new country. We present data from two adult EAL …

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Globalization, Modernity, And Migration: The Changing Visage Of Social Imagination, Darlene Machell Espena Sep 2011

Globalization, Modernity, And Migration: The Changing Visage Of Social Imagination, Darlene Machell Espena

Research Collection School of Social Sciences

In this article, I assert that the recent phenomenon of migration is one apparent and fundamental process that shapes human communities, transforming cultural variation, and distorts the constructs of distance and space. The boundaries of nation-states and identities are constantly being challenged, restructured and interrogated and the trends of modernity and globalization, new ways of projecting feelings and diffusing cultures among displaced communities are produced. The article looks for the new stories that are produced with this vibrant intersection of globalization, modernity and migration. In particular, I focus on the distinct Sikh migrant community in the Philippines: how they have …

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