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Articles 1411 - 1440 of 1690
Full-Text Articles in Entire DC Network
Who Is Retweeting The Tweeters? Modeling, Originating, And Promoting Behaviors In The Twitter Network, Achananuparp Palakorn, Ee Peng Lim, Jing Jiang, Tuan Anh Hoang
Who Is Retweeting The Tweeters? Modeling, Originating, And Promoting Behaviors In The Twitter Network, Achananuparp Palakorn, Ee Peng Lim, Jing Jiang, Tuan Anh Hoang
Research Collection School Of Computing and Information Systems
Real-time microblogging systems such as Twitter offer users an easy and lightweight means to exchange information. Instead of writing formal and lengthy messages, microbloggers prefer to frequently broadcast several short messages to be read by other users. Only when messages are interesting, are they propagated further by the readers. In this article, we examine user behavior relevant to information propagation through microblogging. We specifically use retweeting activities among Twitter users to define and model originating and promoting behavior. We propose a basic model for measuring the two behaviors, a mutual dependency model, which considers the mutual relationships between the two …
A Fuzzy Logic Multi-Criteria Decision Framework For Selecting It Service Providers, Amir Karami, Zhiling Guo
A Fuzzy Logic Multi-Criteria Decision Framework For Selecting It Service Providers, Amir Karami, Zhiling Guo
Research Collection School Of Computing and Information Systems
Selecting IT service providers in information systems outsourcing involves both qualitative and quantitative evaluations. This paper proposes an integrated multi-criteria decision-making (MCDM) framework to effectively handle uncertainty and subjectivity in the vendor selection process. The proposed methods apply fuzzy logic approach to integrate qualitative survey data into traditional multi-criteria decision models such as data envelope analysis (DEA), analytical hierarchy process (AHP) methods, and TOPSIS. Based on case studies from Iranian banking industry, we empirically test the proposed framework and show it is superior to existing methods. We demonstrate that the fuzzy logic approach provides a robust analysis for vendor selection …
Bodies For The Gods: Image Worship In Chinese Popular Religion, Margaret Chan
Bodies For The Gods: Image Worship In Chinese Popular Religion, Margaret Chan
Research Collection School of Social Sciences
No abstract provided.
Topic Based Query Suggestions For Video Search, Kong-Wah Wan, Ah-Hwee Tan, Joo-Hwee Lim, Liang-Tien Chia
Topic Based Query Suggestions For Video Search, Kong-Wah Wan, Ah-Hwee Tan, Joo-Hwee Lim, Liang-Tien Chia
Research Collection School Of Computing and Information Systems
Query suggestion is an assistive technology mechanism commonly used in search engines to enable a user to formulate their search queries by predicting or completing the next few query words that the user is likely to type. In most implementations, the suggestions are mined from query log and use some simple measure of query similarity such as query frequency or lexicographical matching. In this paper, we propose an alternative method of presenting query suggestions by their thematic topics. Our method adopts a document-centric approach to mine topics in the corpus, and does not require the availability of a query log. …
Travels Of The Criminal Question: Cultural Embeddedness And Diffusion [Book Review], Mark Findlay
Travels Of The Criminal Question: Cultural Embeddedness And Diffusion [Book Review], Mark Findlay
Research Collection Yong Pung How School Of Law
No abstract provided.
The Derivative Action In Asia: A Complex Reality, Dan W. Puchniak
The Derivative Action In Asia: A Complex Reality, Dan W. Puchniak
Research Collection Yong Pung How School Of Law
This Article uses the derivative action in Asia as a lens for re-evaluating the foundational theories of Asian and comparative corporate law. It begins by demonstrating that the cultural theory of “Asian non-litigiousness” provides scant explanatory or predictive value for either the evolution or function of the derivative action in Asia’s leading economies. As such, this Article suggests that the theory of Asian non-litigiousness should be relegated to the dustbin of academic history. Without the black box of Asian culture to erroneously explain away potential differences between “Asian” and “Western” derivative actions, the reality of the derivative action in Asia’s …
Cross Media Hyperlinking For Search Topic Browsing, Song Tan, Chong-Wah Ngo, Hung-Khoon Tan, Lei Pang
Cross Media Hyperlinking For Search Topic Browsing, Song Tan, Chong-Wah Ngo, Hung-Khoon Tan, Lei Pang
Research Collection School Of Computing and Information Systems
With the rapid growth of social media, there are plenty of information sources freely available online for use. Nevertheless, how to synchronize and leverage these diverse forms of information for multimedia applications remains a problem yet to be seriously studied. This paper investigates the synchronization of multiple media content in the physical form of hyperlinking them. The ultimate goal is to develop browsing systems that author search results with rich media information mined from various knowledge sources. The authoring enables the vivid visualization and exploration of different information landscapes inherent in search results. Several key techniques are studied in this …
Ancient Chinese Power, Modern Chinese Thought, Linsay Cunningham-Cross, William A. Callahan
Ancient Chinese Power, Modern Chinese Thought, Linsay Cunningham-Cross, William A. Callahan
Research Collection School of Social Sciences
Ancient Chinese Thought, Modern Chinese Power is the latest publication to come from Yan Xuetong's ongoing research project that explores the interstate political philosophy of China's pre-Qin era. This book is interesting on many levels, and has already drawn attention from public intellectuals and scholars in the West. This essay thus first will examine the scholarly issue of how Yan and his colleagues are employing pre-Qin thought to make philosophical and political arguments about how China will rise. It will consider the relation of the ‘kingly way’ (wang 王) and the ‘hegemonic way’ (ba 霸) to critically analyze Yan's argument …
The Valuation Of User-Generated Content: A Structural, Stylistic And Semantic Analysis Of Online Reviews, Noi Sian Koh
The Valuation Of User-Generated Content: A Structural, Stylistic And Semantic Analysis Of Online Reviews, Noi Sian Koh
Dissertations and Theses Collection (Open Access)
The ability and ease for users to create and publish content has provided vast amount of online product reviews. However, the amount of data is overwhelmingly large and unstructured, making information difficult to quantify. This creates challenge in understanding how online reviews affect consumers’ purchase decisions. In my dissertation, I explore the structural, stylistic and semantic content of online reviews. Firstly, I present a measurement that quantifies sentiments with respect to a multi-point scale and conduct a systematic study on the impact of online reviews on product sales. Using the sentiment metrics generated, I estimate the weight that customers place …
Kovesi And The Formal And Material Elements Of Concepts, T. Brian Mooney, Mark Nowacki, John N. Williams
Kovesi And The Formal And Material Elements Of Concepts, T. Brian Mooney, Mark Nowacki, John N. Williams
Research Collection School of Social Sciences
In his seminal work Moral Notions, Julius Kovesi presents a novel account of concept formation. At the heart of this account is a distinction between what he terms the material element and the formal element of concepts. This paper elucidates his distinction in detail and contrasts it with other distinctions such as form-matter, universal-particular, genus-difference, necessary-sufficient, and open texture-closed texture. We situate Kovesi’s distinction within his general philosophical method, outlining his views on concept formation in general and explain how his theory of concept formation is applied in moral philosophy.
Including The Excluded: Communitarian Paths To Cosmopolitanism, Eduard Jordaan
Including The Excluded: Communitarian Paths To Cosmopolitanism, Eduard Jordaan
Research Collection School of Social Sciences
Cosmopolitanism is frequently criticised for overlooking the situatedness of morality and the importance of solidarity in their aspiration to global justice. A number of thinkers take these criticisms seriously and pursue ‘a communitarian path to cosmopolitanism’. Four such approaches are considered. All four view morality and justice as grounded in a specific social setting and hold that justice is more likely to result if there is some ‘we-feeling’ among people, but are simultaneously committed to expanding the realm of justice and moral concern to beyond national boundaries. To enable the theorisation of an expanded realm of situated justice and moral …
Discussion Of "Biomedical Ontologies: Toward Scientific Debate", Brochhausen M., Burgun A., Ceusters W., Hasman A., Tze-Yun Leong, Musen M., Oliveira J., Peleg M., Rector A., Schulz S.
Discussion Of "Biomedical Ontologies: Toward Scientific Debate", Brochhausen M., Burgun A., Ceusters W., Hasman A., Tze-Yun Leong, Musen M., Oliveira J., Peleg M., Rector A., Schulz S.
Research Collection School Of Computing and Information Systems
With these comments on the paper “Biomedical Ontologies: Toward scientific debate”, written by Victor Maojo et al., Methods of Information in Medicine wants to stimulate a discussion on advantages and challenges of biomedical ontologies. An international group of experts have been invited by the editor of Methods to comment on this paper. Each of the invited commentaries forms one section of this paper.
Measuring Social Networks For Real-Time Competitive Advantage, Singapore Management University
Measuring Social Networks For Real-Time Competitive Advantage, Singapore Management University
Perspectives@SMU
Social networks offer up a goldmine of information just waiting to be exploited. For the first time, human relationships, comments and activities are documented quite publicly on platforms like Facebook and Twitter. Save for privacy concerns, never before has it been easier to know what people think, what they like, and to whom they are connected.
Measuring Social Networks For Real-Time Competitive Advantage, Knowledge@Smu
Measuring Social Networks For Real-Time Competitive Advantage, Knowledge@Smu
Knowledge@SMU
Social networks offer up a goldmine of information. Save for privacy concerns, it has never before been easier for researchers to understand the needs and wants of their subjects or to examine links between the likes and dislikes of connected individuals. Going beyond the report of human quirks over the internet, however, web 2.0 data has practical uses too, especially for professionals in finance and marketing. At the 3rd International Conference on Social Informatics, hosted by SMU's School of Information Systems, academics discussed the hurdles and real-world benefits of data mining.
Beyond Search: Event-Driven Summarization For Web Videos, Richard Hong, Jinhui Tang, Hung-Khoon Tan, Chong-Wah Ngo, Shuicheng Yan, Tat-Seng Chua
Beyond Search: Event-Driven Summarization For Web Videos, Richard Hong, Jinhui Tang, Hung-Khoon Tan, Chong-Wah Ngo, Shuicheng Yan, Tat-Seng Chua
Research Collection School Of Computing and Information Systems
The explosive growth of Web videos brings out the challenge of how to efficiently browse hundreds or even thousands of videos at a glance. Given an event-driven query, social media Web sites usually return a large number of videos that are diverse and noisy in a ranking list. Exploring such results will be time-consuming and thus degrades user experience. This article presents a novel scheme that is able to summarize the content of video search results by mining and threading "key" shots, such that users can get an overview of main content of these videos at a glance. The proposed …
Finding Relevant Answers In Software Forums, Swapna Gottopati, David Lo, Jing Jiang
Finding Relevant Answers In Software Forums, Swapna Gottopati, David Lo, Jing Jiang
Research Collection School Of Computing and Information Systems
Online software forums provide a huge amount of valuable content. Developers and users often ask questions and receive answers from such forums. The availability of a vast amount of thread discussions in forums provides ample opportunities for knowledge acquisition and summarization. For a given search query, current search engines use traditional information retrieval approach to extract webpages containing relevant keywords. However, in software forums, often there are many threads containing similar keywords where each thread could contain a lot of posts as many as 1,000 or more. Manually finding relevant answers from these long threads is a painstaking task to …
Virality Modeling And Analysis, Tuan Anh Hoang, Ee-Peng Lim
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 …
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
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, …
Visiting 'Home': Contacts With The Homeland, Self-Reflexivity And Emergent Migrant Bilingual Identities, Alan Williams, Charlotte Setijadi
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 …
Communication, Organizing And Organization: An Overview And Introduction To The Special Issue, Francois Cooren, Timothy Kuhn, Joep P. Cornelissen, Timothy Adrian Robert Clark
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 …
Generating Aspect-Oriented Multi-Document Summarization With Event-Aspect Model, Peng Li, Yinglin Wang, Wei Gao, Jing Jiang
Generating Aspect-Oriented Multi-Document Summarization With Event-Aspect Model, Peng Li, Yinglin Wang, Wei Gao, Jing Jiang
Research Collection School Of Computing and Information Systems
In this paper, we propose a novel approach to automatic generation of aspect-oriented summaries from multiple documents. We first develop an event-aspect LDA model to cluster sentences into aspects. We then use extended LexRank algorithm to rank the sentences in each cluster. We use Integer Linear Programming for sentence selection. Key features of our method include automatic grouping of semantically related sentences and sentence ranking based on extension of random walk model. Also, we implement a new sentence compression algorithm which use dependency tree instead of parser tree. We compare our method with four baseline methods. Quantitative evaluation based on …
Unsupervised Information Extraction With Distributional Prior Knowledge, Cane Wing-Ki Leung, Jing Jiang, Kian Ming A. Chai, Hai Leong Chieu, Loo-Nin Teow
Unsupervised Information Extraction With Distributional Prior Knowledge, Cane Wing-Ki Leung, Jing Jiang, Kian Ming A. Chai, Hai Leong Chieu, Loo-Nin Teow
Research Collection School Of Computing and Information Systems
We address the task of automatic discovery of information extraction template from a given text collection. Our approach clusters candidate slot fillers to identify meaningful template slots. We propose a generative model that incorporates distributional prior knowledge to help distribute candidates in a document into appropriate slots. Empirical results suggest that the proposed prior can bring substantial improvements to our task as compared to a K-means baseline and a Gaussian mixture model baseline. Specifically, the proposed prior has shown to be effective when coupled with discriminative features of the candidates.
Early Childhood Bilingualism Leads To Advances In Executive Attention: Dissociating Culture And Language, Sujin Yang, Hwajin Yang, Barbara Lust
Early Childhood Bilingualism Leads To Advances In Executive Attention: Dissociating Culture And Language, Sujin Yang, Hwajin Yang, Barbara Lust
Research Collection School of Social Sciences
This study investigated whether early especially efficient utilization of executive functioning in young bilinguals would transcend potential cultural benefits. To dissociate potential cultural effects from bilingualism, four-year-old U.S. Korean-English bilingual children were compared to three monolingual groups – English and Korean monolinguals in the U.S.A. and another Korean monolingual group, in Korea. Overall, bilinguals were most accurate and fastest among all groups. The bilingual advantage was stronger than that of culture in the speed of attention processing, inverse processing efficiency independent of possible speed-accuracy trade-offs, and the network of executive control for conflict resolution. A culture advantage favoring Korean monolinguals …
Linking Entities To A Knowledge Base With Query Expansion, Swapna Gottipati, Jing Jiang
Linking Entities To A Knowledge Base With Query Expansion, Swapna Gottipati, Jing Jiang
Research Collection School Of Computing and Information Systems
In this paper we present a novel approach to entity linking based on a statistical language model-based information retrieval with query expansion. We use both local contexts and global world knowledge to expand query language models. We place a strong emphasis on named entities in the local contexts and explore a positional language model to weigh them differently based on their distances to the query. Our experiments on the TAC-KBP 2010 data show that incorporating such contextual information indeed aids in disambiguating the named entities and consistently improves the entity linking performance. Compared with the official results from KBP 2010 …
Generating Aspect-Oriented Multi-Document Summarization With Event-Aspect Model, Peng Li, Yinglin Wang, Wei Gao, Jing Jiang
Generating Aspect-Oriented Multi-Document Summarization With Event-Aspect Model, Peng Li, Yinglin Wang, Wei Gao, Jing Jiang
Research Collection School Of Computing and Information Systems
In this paper, we propose a novel approach to automatic generation of aspect-oriented summaries from multiple documents. We first develop an event-aspect LDA model to cluster sentences into aspects. We then use extended LexRank algorithm to rank the sentences in each cluster. We use Integer Linear Programming for sentence selection. Key features of our method include automatic grouping of semantically related sentences and sentence ranking based on extension of random walk model. Also, we implement a new sentence compression algorithm which use dependency tree instead of parser tree. We compare our method with four baseline methods. Quantitative evaluation based on …
Unsupervised Discovery Of Discourse Relations For Eliminating Intra-Sentence Polarity Ambiguities, Lanjun Zhou, Binyang Li, Wei Gao, Zhongyu Wei, Kam-Fai Wong
Unsupervised Discovery Of Discourse Relations For Eliminating Intra-Sentence Polarity Ambiguities, Lanjun Zhou, Binyang Li, Wei Gao, Zhongyu Wei, Kam-Fai Wong
Research Collection School Of Computing and Information Systems
Polarity classification of opinionated sentences with both positive and negative sentiments1 is a key challenge in sentiment analysis. This paper presents a novel unsupervised method for discovering intra-sentence level discourse relations for eliminating polarity ambiguities. Firstly, a discourse scheme with discourse constraints on polarity was defined empirically based on Rhetorical Structure Theory (RST). Then, a small set of cuephrase-based patterns were utilized to collect a large number of discourse instances which were later converted to semantic sequential representations (SSRs). Finally, an unsupervised method was adopted to generate, weigh and filter new SSRs without cue phrases for recognizing discourse relations. Experimental …
Topical Keyphrase Extraction From Twitter, Xin Zhao, Jing Jiang, Jing He, Yang Song, Palakorn Achananuparp, Ee Peng Lim, Xiaoming Li
Topical Keyphrase Extraction From Twitter, Xin Zhao, Jing Jiang, Jing He, Yang Song, Palakorn Achananuparp, Ee Peng Lim, Xiaoming Li
Research Collection School Of Computing and Information Systems
Summarizing and analyzing Twitter content is an important and challenging task. In this paper, we propose to extract topical keyphrases as one way to summarize Twitter. We propose a context-sensitive topical PageRank method for keyword ranking and a probabilistic scoring function that considers both relevance and interestingness of keyphrases for keyphrase ranking. We evaluate our proposed methods on a large Twitter data set. Experiments show that these methods are very effective for topical keyphrase extraction.
Writing To Learn: Can Reflection Journals Be Used To Promote Self-Reflection And Learning?, Duan Ning, Magdeleine Lew, Henk G. Schmidt
Writing To Learn: Can Reflection Journals Be Used To Promote Self-Reflection And Learning?, Duan Ning, Magdeleine Lew, Henk G. Schmidt
Research Collection Lee Kong Chian School Of Business
The purpose of the present study was to evaluate whether there is evidence of reflection in student-written journals and to investigate whether students show improvements in their reflective skills through journal keeping. To that end, the reflection journals of 3460 first-year students enrolled in a polytechnic were studied by means of an automated coding procedure. Data used in the analyses were students' journals for an entire week, collected once at the beginning and again at the end of an academic year. Outcomes of the content analyses suggest that there is evidence of reflection in students' journals and that students reflected …
Link Type Based Pre-Cluster Pair Model For Coreference Resolution, Yang Song, Houfeng Wang, Jing Jiang
Link Type Based Pre-Cluster Pair Model For Coreference Resolution, Yang Song, Houfeng Wang, Jing Jiang
Research Collection School Of Computing and Information Systems
This paper presents our participation in the CoNLL-2011 shared task, Modeling Unrestricted Coreference in OntoNotes. Coreference resolution, as a difficult and challenging problem in NLP, has attracted a lot of attention in the research community for a long time. Its objective is to determine whether two mentions in a piece of text refer to the same entity. In our system, we implement mention detection and coreference resolution seperately. For mention detection, a simple classification based method combined with several effective features is developed. For coreference resolution, we propose a link type based pre-cluster pair model. In this model, pre-clustering of …
Query Weighting For Ranking Model Adaptation, Peng Cai, Wei Gao, Aoying Zhou, Kam-Fai Wong
Query Weighting For Ranking Model Adaptation, Peng Cai, Wei Gao, Aoying Zhou, Kam-Fai Wong
Research Collection School Of Computing and Information Systems
We propose to directly measure the importance of queries in the source domain to the target domain where no rank labels of documents are available, which is referred to as query weighting. Query weighting is a key step in ranking model adaptation. As the learning object of ranking algorithms is divided by query instances, we argue that it’s more reasonable to conduct importance weighting at query level than document level. We present two query weighting schemes. The first compresses the query into a query feature vector, which aggregates all document instances in the same query, and then conducts query weighting …