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检索条件"机构=School of Statistics and Data Science&Key Laboratory of Data Science in Finance and Economics"
241 条 记 录,以下是121-130 订阅
On a fast consistent selection of nested models with possibly unnormalised probability densities
arXiv
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arXiv 2025年
作者: Bian, Rong Chan, Kung-Sik Cheng, Bing Tong, Howell Academy of Mathematics and System Science Chinese Academy of Sciences Beijing China School of Mathematical Sciences University of Chinese Academy of Sciences Beijing China Department of Statistics and Actuarial Science University of Iowa Iowa City United States AMSS Center for Forecasting Science Chinese Academy of Sciences Beijing China State Key Laboratory of Mathematical Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China Department of Statistics London School of Economics and Political Science London United Kingdom Department of Statistics and Data Science Tsinghua University Beijing China Paula and Gregory Chow Institute for Studies in Economics Xiamen University Xiamen China
Models with unnormalized probability density functions are ubiquitous in statistics, artificial intelligence and many other fields. However, they face significant challenges in model selection if the normalizing const... 详细信息
来源: 评论
Service-oriented manufacturing:A literature review and future research directions
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Frontiers of Engineering Management 2022年 第1期9卷 71-88页
作者: Zhong-Zhong JIANG Guangqi FENG Zelong YI Xiaolong GUO School of Business Administration&Institute of Behavioral and Service Operations Management Northeastern UniversityShenyang 110167China Key Laboratory of Data Analytics and Optimization for Smart Industry(Northeastern University) Ministry of EducationShenyang 110819China Department of Transportation Economics and Logistics Management College of EconomicsShenzhen UniversityShenzhen 518060China Anhui Province Key Laboratory of Contemporary Logistics and Supply Chain International Institute of FinanceSchool of ManagementUniversity of Science and Technology of ChinaHefei 230026China
This study presents a systematic review of the literature on service-oriented manufacturing(SOM).Specifically,we focus on the impact of SOM on firm operating decisions,which distinguishes this work from previous *** s... 详细信息
来源: 评论
Adaptive Robust Multi-View Linex-Based Xgboost Model for Credit Risk Assessment
SSRN
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SSRN 2023年
作者: Tang, Jingjing Zhu, Guorui Li, Jiahui Tian, Yingjie School of Business Administration Faculty of Business Administration Southwestern University of Finance and Economics Chengdu611130 China Institute of Big Data Southwestern University of Finance and Economics Chengdu611130 China School of Economics and Management University of Chinese Academy of Sciences Beijing100190 China Research Center on Fictitious Economy and Data Science Chinese Academy of Sciences Beijing100190 China Key Laboratory of Big Data Mining and Knowledge Management Chinese Academy of Sciences Beijing100190 China
Credit risk assessment is crucial for financial institutions. The data-driven methods regard the credit risk assessment as the class-imbalanced binary classification task since the non-default samples greatly outnumbe... 详细信息
来源: 评论
Hierarchical Alignment-enhanced Adaptive Grounding Network for Generalized Referring Expression Comprehension
arXiv
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arXiv 2025年
作者: Wang, Yaxian Ding, Henghui He, Shuting Jiang, Xudong Wei, Bifan Liu, Jun School of Computer Science and Technology Xi'an Jiaotong University China Ministry of Education Key Laboratory of Intelligent Networks and Network Security Xi'an Jiaotong University China Institute of Big Data Fudan University China Shanghai University of Finance and Economics China Nanyang Technological University Singapore School of Continuing Education Xi'an Jiaotong University China Shaanxi Province Key Laboratory of Big Data Knowledge Engineering Xi'an Jiaotong University China
In this work, we address the challenging task of Generalized Referring Expression Comprehension (GREC). Compared to the classic Referring Expression Comprehension (REC) that focuses on single-target expressions, GREC ... 详细信息
来源: 评论
DiGAN Breakthrough: Advancing diabetic data analysis with innovative GAN-based imbalance correction techniques
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Computer Methods and Programs in Biomedicine Update 2024年 5卷
作者: Zhao, Puyang Liu, Xinhui Yue, Zhiyi Zhao, Qianyu Liu, Xinzhi Deng, Yuhui Wu, Jingjin Department of Biostatistics The University of Texas Health Science Center at Houston Houston TX United States Department of Statistics The London School of Economics and Political Science London United Kingdom Department of Civil and Environmental Engineering Duke University Durham NC United States School of Physics Southeast University Nanjing China Guangdong Provincial Key Laboratory of Interdisciplinary Research and Application for Data Science Department of Statistics and Data Science BNU-HKBU United International College Zhuhai China
In the rapidly evolving field of medical diagnostics, the challenge of imbalanced datasets, particularly in diabetes classification, calls for innovative solutions. The study introduces DiGAN, a groundbreaking approac... 详细信息
来源: 评论
Autoregressive Networks with Dependent Edges
arXiv
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arXiv 2024年
作者: Chang, Jinyuan Fang, Qin Kolaczyk, Eric D. MacDonald, Peter W. Yao, Qiwei Joint Laboratory of Data Science and Business Intelligence Southwestern University of Finance and Economics Sichuan Chengdu611130 China Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China Business School University of Sydney Sydney2008 Australia Department of Mathematics and Statistics McGill University MontrealQCH3A 0B9 Canada Department of Statistics London School of Economics and Political Science LondonWC2A 2AE United Kingdom
We propose an autoregressive framework for modelling dynamic networks with dependent edges. It encompasses the models which accommodate, for example, transitivity, density-dependent and other stylized features often o... 详细信息
来源: 评论
Intersection-policy private mutual authentication from authorized private set intersection
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science China(Information sciences) 2020年 第2期63卷 116-130页
作者: Yamin WEN Fangguo ZHANG Huaxiong WANG Yinbin MIAO Zheng GONG School of Statistics and Mathematics Guangdong University of Finance and Economics State Key Laboratory of Cryptology School of Data and Computer Science Sun Yat-sen University Guangdong Key Laboratory of Information Security Sun Yat-sen University School of Physical and Mathematical Sciences Nanyang Technological University Department of Cyber Engineering Xidian University School of Computer South China Normal University
Private mutual authentication(PMA) enables two-way anonymous authentication between two users certified by the same trusted group authority. Most existing PMA schemes focus on acquiring a relatively onefold authentica... 详细信息
来源: 评论
The Development of Green Olympic Games: A Comparison of CO2Emission Reduction Strategies between PyeongChang 2018 and Beijing 2022  9th
The Development of Green Olympic Games: A Comparison of CO2E...
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9th International Conference on Information Technology and Quantitative Management, ITQM 2022
作者: Ding, Xuesong Jiang, Yilin Yang, Banban Su, Jingchun Chen, Liming Li, Na School of Economics and Management University of Chinese Academy of Sciences Beijing100190 China Chinese Academy of Fiscal Sciences Ministry of Finance Beijing100142 China Division of Sports Science and Physical Education Tsinghua University Beijing100084 China Division of Sports Science and Physical Education Tangshan Polytechnic College Tangshan063299 China Research Center on Fictitious Economy and Data Science Chinese Academy of Sciences Beijing100190 China Key Laboratory of Big Data Mining and Knowledge Management Chinese Academy Sciences Beijing100190 China
The Olympic Games are striking a balance between economic and ecological benefits. Taking the 5 ice event venues of the 2018 PyeongChang Winter Olympic Games as the research object, the CO2 emissions under the 2018 Py... 详细信息
来源: 评论
Empirical likelihood-based portmanteau tests for autoregressive moving average models with possible infinite variance innovation
arXiv
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arXiv 2022年
作者: Liu, Xiaohui Fan, Donghui Zhang, Xu Liu, Catherine C. Key Laboratory of Data Science in Finance and Economics Jiangxi University of Finance and Economic Nanchang China School of Statistics Jiangxi University of Finance and Economic Nanchang China School of Mathematical Science South China Normal University Guangzhou China Department of Applied Mathematics The Hong Kong Polytechnic University Hong Kong
It is an important task in the literature to check whether a fitted autoregressive moving average (ARMA) model is adequate, while the currently used tests may suffer from the size distortion problem when the underlyin... 详细信息
来源: 评论
Penalized Sparse Covariance Regression with High Dimensional Covariates
arXiv
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arXiv 2024年
作者: Gao, Yuan Zhang, Zhiyuan Cai, Zhanrui Zhu, Xuening Zou, Tao Wang, Hansheng Guanghua School of Management Peking University Beijing China School of Data Science Fudan University Shanghai China MOE Laboratory for National Development and Intelligent Governance Fudan University Shanghai China Faculty of Business and Economics The University of Hong Kong Hong Kong Research School of Finance Actuarial Studies and Statistics Australian National University Canberra Australia
Covariance regression offers an effective way to model the large covariance matrix with the auxiliary similarity matrices. In this work, we propose a sparse covariance regression (SCR) approach to handle the potential... 详细信息
来源: 评论