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Articles 1 - 14 of 14
Full-Text Articles in Entire DC Network
Complex Knowledge Base Question Answering: A Survey, Yunshi Lan, Gaole He, Jinhao Jiang, Jing Jiang, Zhao Wayne Xin, Ji Rong Wen
Complex Knowledge Base Question Answering: A Survey, Yunshi Lan, Gaole He, Jinhao Jiang, Jing Jiang, Zhao Wayne Xin, Ji Rong Wen
Research Collection School Of Computing and Information Systems
Knowledge base question answering (KBQA) aims to answer a question over a knowledge base (KB). Early studies mainly focused on answering simple questions over KBs and achieved great success. However, their performances on complex questions are still far from satisfactory. Therefore, in recent years, researchers propose a large number of novel methods, which looked into the challenges of answering complex questions. In this survey, we review recent advances in KBQA with the focus on solving complex questions, which usually contain multiple subjects, express compound relations, or involve numerical operations. In detail, we begin with introducing the complex KBQA task and …
Demystifying Performance Regressions In String Solvers, Yao Zhang, Xiaofei Xie, Yi Li, Yi Lin, Sen Chen, Yang Liu, Xiaohong Li
Demystifying Performance Regressions In String Solvers, Yao Zhang, Xiaofei Xie, Yi Li, Yi Lin, Sen Chen, Yang Liu, Xiaohong Li
Research Collection School Of Computing and Information Systems
Over the past few years, SMT string solvers have found their applications in an increasing number of domains, such as program analyses in mobile and Web applications, which require the ability to reason about string values. A series of research has been carried out to find quality issues of string solvers in terms of its correctness and performance. Yet, none of them has considered the performance regressions happening across multiple versions of a string solver. To fill this gap, in this paper, we focus on solver performance regressions (SPRs), i.e., unintended slowdowns introduced during the evolution of string solvers. To …
The Influence Of Parental Psychological Control On Offspring Anxiety Symptomatology: A Cognitive Model, Yu Ping Wong
The Influence Of Parental Psychological Control On Offspring Anxiety Symptomatology: A Cognitive Model, Yu Ping Wong
Dissertations and Theses Collection (Open Access)
Parental control has often been purported to be a risk factor for offspring anxiety. Recent studies however, identify that a particular dimension of control - parental psychological control - is an especially important contributor to anxiety. However, the mechanisms behind this relationship remain unknown. Thus, in this study, we seek to bridge this gap in the literature by examining whether a cognitive mechanism underlies this relationship. Drawing on Beck's model of emotional disorders, we propose that control- related beliefs and negative automatic thoughts would serially mediate the influence of psychological control on anxiety symptoms. Moreover, we sought to examine the …
Theorizing Gender In Social Network Research: What We Do And What We Can Do Differently, Raina Brands, Gokhan Ertug, Fabio Fonti, Stefano Tasselli
Theorizing Gender In Social Network Research: What We Do And What We Can Do Differently, Raina Brands, Gokhan Ertug, Fabio Fonti, Stefano Tasselli
Research Collection Lee Kong Chian School Of Business
We review the ways in which gender is theorized in social network research and propose an alternative approach for future research to consider. To assess “what we do,” we undertake an evaluative review. In that review, we first examine how gender is typically theorized in structural approaches to social network research. Then, in greater detail, we review social network research that affords more diversity into such theorizing. We organize this more detailed review around a framework that is based on the level of analysis at which the implications of gender are invoked (cognitive, behavioral) and the focus of relational mechanisms …
Action-Centric Relation Transformer Network For Video Question Answering, Jipeng Zhang, Jie Shao, Rui Cao, Lianli Gao, Xing Xu, Heng Tao Shen
Action-Centric Relation Transformer Network For Video Question Answering, Jipeng Zhang, Jie Shao, Rui Cao, Lianli Gao, Xing Xu, Heng Tao Shen
Research Collection School Of Computing and Information Systems
Video question answering (VideoQA) has emerged as a popular research topic in recent years. Enormous efforts have been devoted to developing more effective fusion strategies and better intra-modal feature preparation. To explore these issues further, we identify two key problems. (1) Current works take almost no account of introducing action of interest in video representation. Additionally, there exists insufficient labeling data on where the action of interest is in many datasets. However, questions in VideoQA are usually action-centric. (2) Frame-to-frame relations, which can provide useful temporal attributes (e.g., state transition, action counting), lack relevant research. Based on these observations, we …
Breaking Neural Reasoning Architectures With Metamorphic Relation-Based Adversarial Examples, Alvin Chan, Lei Ma, Felix Juefei-Xu, Yew-Soon Ong, Xiaofei Xie, Minhui Xue, Yang Liu
Breaking Neural Reasoning Architectures With Metamorphic Relation-Based Adversarial Examples, Alvin Chan, Lei Ma, Felix Juefei-Xu, Yew-Soon Ong, Xiaofei Xie, Minhui Xue, Yang Liu
Research Collection School Of Computing and Information Systems
The ability to read, reason, and infer lies at the heart of neural reasoning architectures. After all, the ability to perform logical reasoning over language remains a coveted goal of Artificial Intelligence. To this end, models such as the Turing-complete differentiable neural computer (DNC) boast of real logical reasoning capabilities, along with the ability to reason beyond simple surface-level matching. In this brief, we propose the first probe into DNC's logical reasoning capabilities with a focus on text-based question answering (QA). More concretely, we propose a conceptually simple but effective adversarial attack based on metamorphic relations. Our proposed adversarial attack …
The Gap Of Semantic Parsing: A Survey On Automatic Math Word Problem Solvers, Dongxiang Zhang, Lei Wang, Luming Zhang, Bing Tian Dai, Heng Tao Shen
The Gap Of Semantic Parsing: A Survey On Automatic Math Word Problem Solvers, Dongxiang Zhang, Lei Wang, Luming Zhang, Bing Tian Dai, Heng Tao Shen
Research Collection School Of Computing and Information Systems
Solving mathematical word problems (MWPs) automatically is challenging, primarily due to the semantic gap between human-readable words and machine-understandable logics. Despite the long history dated back to the 1960s, MWPs have regained intensive attention in the past few years with the advancement of Artificial Intelligence (AI). Solving MWPs successfully is considered as a milestone towards general AI. Many systems have claimed promising results in self-crafted and small-scale datasets. However, when applied on large and diverse datasets, none of the proposed methods in the literature achieves high precision, revealing that current MWP solvers still have much room for improvement. This motivated …
The Neural Basis Of Human Female Mate Copying: An Empathy-Based Social Learning Process, Jin-Ying Zhuang, Xiaoqing Ji, Zhiyong Zhao, Mingxia Fan, Norman P. Li
The Neural Basis Of Human Female Mate Copying: An Empathy-Based Social Learning Process, Jin-Ying Zhuang, Xiaoqing Ji, Zhiyong Zhao, Mingxia Fan, Norman P. Li
Research Collection School of Social Sciences
We used functional magnetic resonance imaging (fMRI) to investigate the neural basis of human female mate copying.Consistent with previous mate copying effects, women's attractiveness ratings for target males increased significantlygreater after the males were observed paired with romantic partners versus ordinary friends, and this wasmainly accounted for by males being paired with attractive romantic partners. Attractiveness ratings for male targetswere lower when they were paired with an attractive opposite-sex friend. The fMRI data showed that the observationallearning process in mate copying recruited brain regions including the putamen, the inferior frontal gyrus, themiddle cingulate, the SMA, the insula, and the thalamus …
The Neural Basis Of Human Female Mate Copying: An Empathy-Based Social Learning Process, Jin-Ying Zhuang, Xiaoqing Ji, Zhiyong Zhao, Mingxia Fan, Norman P. Li
The Neural Basis Of Human Female Mate Copying: An Empathy-Based Social Learning Process, Jin-Ying Zhuang, Xiaoqing Ji, Zhiyong Zhao, Mingxia Fan, Norman P. Li
Research Collection School of Social Sciences
We used functional magnetic resonance imaging (fMRI) to investigate the neural basis of human female mate copying.Consistent with previous mate copying effects, women's attractiveness ratings for target males increased significantlygreater after the males were observed paired with romantic partners versus ordinary friends, and this wasmainly accounted for by males being paired with attractive romantic partners. Attractiveness ratings for male targetswere lower when they were paired with an attractive opposite-sex friend. The fMRI data showed that the observationallearning process in mate copying recruited brain regions including the putamen, the inferior frontal gyrus, themiddle cingulate, the SMA, the insula, and the thalamus …
Is The Smartphone A Smart Choice? The Effect Of Smartphone Separation On Executive Functions, Andree Hartanto, Hwajin Yang
Is The Smartphone A Smart Choice? The Effect Of Smartphone Separation On Executive Functions, Andree Hartanto, Hwajin Yang
Research Collection School of Social Sciences
Despite a huge spike in smartphone overuse, the cognitive and emotional consequences of smartphone overuse have rarely been examined empirically. In two studies, we investigated whether separation from a smartphone influences state anxiety and impairs higher-order cognitive processes, such as executive functions. We found that smartphone separation causes heightened anxiety, which in turn mediates the adverse effect of smartphone separation on all core aspects of executive functions, including shifting (Experiment 1) and inhibitory control and working-memory capacity (Experiment 2). Interestingly, impaired mental shifting was evident regardless of the extent of smartphone addiction, whereas smartphone addiction significantly moderated the negative effect …
Overcoming Learning Barriers Through Knowledge Management, Itiel E. Dror, Tamas Makany, Jonathan Kemp
Overcoming Learning Barriers Through Knowledge Management, Itiel E. Dror, Tamas Makany, Jonathan Kemp
Research Collection Lee Kong Chian School Of Business
The ability to learn highly depends on how knowledge is managed. Specifically, different techniques for note-taking utilize different cognitive processes and strategies. In this paper, we compared dyslexic and control participants when using linear and non-linear note-taking. All our participants were professionals working in the banking and financial sector. We examined comprehension, accuracy, mental imagery & complexity, metacognition, and memory. We found that participants with dyslexia, when using a non-linear note-taking technique outperformed the control group using linear note-taking and matched the performance of the control group using non-linear note-taking. These findings emphasize how different knowledge management techniques can avoid …
Deep Rationality: The Evolutionary Economics Of Decision Making, Douglas T. Kenrick, Vladas Griskevicius, Jill M. Sundie, Norman P. Li, Jessica Yexin Li, Steven L. Neuberg
Deep Rationality: The Evolutionary Economics Of Decision Making, Douglas T. Kenrick, Vladas Griskevicius, Jill M. Sundie, Norman P. Li, Jessica Yexin Li, Steven L. Neuberg
Research Collection School of Social Sciences
What is a “rational” decision? Economists traditionally viewed rationality as maximizing expected satisfaction. This view has been useful in modeling basic microeconomic concepts, but falls short in accounting for many everyday human decisions. It leaves unanswered why some things reliably make people more satisfied than others, and why people frequently act to make others happy at a cost to themselves. Drawing on an evolutionary perspective, we propose that people make decisions according to a set of principles that may not appear to make sense at the superficial level, but that demonstrate rationality at a deeper evolutionary level. By this, we …
Self-Organizing Neural Models Integrating Rules And Reinforcement Learning, Teck-Hou Teng, Zhong-Ming Tan, Ah-Hwee Tan
Self-Organizing Neural Models Integrating Rules And Reinforcement Learning, Teck-Hou Teng, Zhong-Ming Tan, Ah-Hwee Tan
Research Collection School Of Computing and Information Systems
Traditional approaches to integrating knowledge into neural network are concerned mainly about supervised learning. This paper presents how a family of self-organizing neural models known as fusion architecture for learning, cognition and navigation (FALCON) can incorporate a priori knowledge and perform knowledge refinement and expansion through reinforcement learning. Symbolic rules are formulated based on pre-existing know-how and inserted into FALCON as a priori knowledge. The availability of knowledge enables FALCON to start performing earlier in the initial learning trials. Through a temporal-difference (TD) learning method, the inserted rules can be refined and expanded according to the evaluative feedback signals received …
Multicultural Experience Enhances Creativity: The When And How, Angela K. Y. Leung, William W. Maddux, Adam D. Galinsky, Chi-Yue Chiu
Multicultural Experience Enhances Creativity: The When And How, Angela K. Y. Leung, William W. Maddux, Adam D. Galinsky, Chi-Yue Chiu
Research Collection School of Social Sciences
Many practices aimed at cultivating multicultural competence in educational and organizational settings (e.g., exchange programs, diversity education in college, diversity management at work) assume that multicultural experience fosters creativity. In line with this assumption, the research reported in this article is the first to empirically demonstrate that exposure to multiple cultures in and of itself can enhance creativity. Overall, the authors found that extensiveness of multicultural experiences was positively related to both creative performance (insight learning, remote association, and idea generation) and creativity-supporting cognitive processes (retrieval of unconventional knowledge, recruitment of ideas from unfamiliar cultures for creative idea expansion). Furthermore, …