作者: Yashen Wang;Zhaoyu Wang;Huanhuan Zhang;Zhirun Liu (National Engineering Laboratory for Risk Perception and Prevention (RPP), China Academy of Electronics and Information Technology of CETC and Key Laboratory of Cognition and Intelligence Technology (CIT), Information Science Academy of CETC, Beijing, China School of Information Sciences, University of Illinois at Urbana-Champaign, Urbana, IL National Engineering Laboratory for Risk Perception and Prevention (RPP), China Academy of Electronics and Information Technology of CETC, Beijing, China Beijing Engineering Research Center of High Volume Language Information Processing and Cloud Computing Applications, School of Computer, Beijing Institute of Technology, Beijing, China)
出处: ACM Transactions on Knowledge Discovery from Data 2023 Vol.17 No.3 P1-32
摘要: Despite substantial interest in applications of neural networks to information retrieval, neural ranking models have mostly been applied to convention ...
作者: Wei, Yulong;Li, Rong-hua;Yang, Weihua (1Department of Mathematics , Taiyuan University of Technology, Taiyuan, 030024, China;2School of Computer Science & Technology , Beijing Institute of Technology, Beijing, 100081, China)
出处: Comput. J. 2023 Vol.66 No.1 P221-228
关键词: fault diagnosability;highly connected graph;maximally connected graph;MM* model;PMC model
摘要: Zhu et al. introduced the |$h$|-edge tolerable diagnosability to measure the fault diagnosis capability of a multiprocessor system with faulty links. ...
作者: Yitian Zhang;Yuming Tang;Zijian Zhang;Meng Li;Zhen Li;Salabat Khan;Huaping Chen;Guoqiang Cheng (1School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China;2School of Cyberspace Science & Technology, Beijing Institute of Technology, Beijing 100081, China;3School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230009, China;4College of Computer Science and Software Engineering, Shenzhen University, Shenzhen 518060, China;5Qianxin Technology Group Company, Beijing 100044, China)
出处: Mathematics 2023 Vol.11 No.1091 P1091
关键词: blockchain;verifiable random functions;differential privacy;zero-knowledge proof;federated learning
摘要: Federated learning (FL) has been widely used in both academia and industry all around the world. FL has advantages from the perspective of data securi ...
作者: 蒲瞻星1,2;,葛永新1; (1重庆大学大数据与软件学院;2北京理工大学计算机学院)
出处: 计算机学报 2023 第46卷 第3期 P594-608
关键词: 小样本学习;行为识别;视频分类;数据的流形分布;多特征融合
摘要: 现有基于小样本学习的视频行为识别方法,在解决小样本学习中信息量稀缺问题时存在信息重复度高以及类间相似性大等不足,而且鲜有关注小样本学习中的域偏移与枢纽点问题,从而导致动作类表达能力弱和行为识别中错误分类的问题,此外,复杂的网络结构导致参数量与计算量成倍增加.针对以上问题,本文提出一种基于多特征融合的 ...
作者: 谷香,李艳辉,袁野,李新玲,王国仁 (东北大学计算机科学与工程学院;重庆交通大学信息科学与工程学院;北京理工大学计算机学院)
出处: 计算机科学与探索 2023 第4期
关键词: 本地化差分隐私(LDP);个性化本地差分隐私(PLDP);数值型数据;分类型数据;众包
摘要: 众包应用的普及加速了企业的发展,随之而来的隐私泄露问题已经成为公众关注的焦点。现有的本地化差分隐私(LDP)机制主要关注单个隐私级别的效用优化,这会导致某些用户因提供的隐私保护级别不足拒绝共享数据,而某些用户则获得过多的隐私保护。为满足用户不同的隐私保护需求,针对收集和分析多维混合型数据提出一种个性 ...
作者: 韩锐,刘驰 (北京理工大学计算机学院)
出处: 计算机教育 2023 第2期 P173-176,181
关键词: 软件工程课程;实践教学;案例教学;自主学习;大数据应用
摘要: 针对当前软件工程实践教学往往依托少数案例进行专业知识讲授而导致的一系列问题,提出基于大数据案例的实践教学方法,给出不同地域、行业、规模和兼具时效性的61个大数据案例,阐述面向自主能力培养的实践教学设计思路和具体步骤,介绍教学实践并说明拓展结果。
作者: 乔连鹏,侯会文,王国仁 (东北大学 计算机科学与工程学院;北京理工大学 计算机学院)
出处: 软件学报 2023 第34卷 第3期 P1277-1291
关键词: 社区搜索;异质信息网络;属性公平性;遍历方法;枚举算法
摘要: 近年来,异质信息网络上的社区搜索问题已经吸引了越来越多的关注,而且被广泛应用在图数据分析工作中.但是现有异质信息网络上的社区搜索问题都没有考虑子图上属性的公平性.将属性的公平性与异质信息网络上的kPcore挖掘问题相结合,提出了基于属性公平的异质信息网络上的极大core挖掘问题.针对该问题,首先提出 ...
作者: 江东,袁野,张小伟,王国仁 (东北大学 计算机科学与工程学院;北京理工大学 计算机学院)
出处: 软件学报 2023 第34卷 第3期 P1396-1424
关键词: 数据定价;数据交易;数据市场;定价模型;数据管理
摘要: 在大数据时代,随着信息技术的发展,各行各业都在收集海量数据.数据是数字经济的基础,蕴含有巨大价值.但是由于缺乏高效可行的共享机制,数据拥有方彼此之间缺乏沟通,形成了一个个数据孤岛.这不利于大数据产业的健康发展.因此,给数据分配一个合适的价格,设计高效的数据交易市场平台成为消除数据孤岛、使数据充分流动 ...
作者: Long,Yucheng1;Ying,Zuobin2;Yan,Hongyang15;Fang,Ranqing3;Li,Xingyu1;Wang,Yajie4;Pan,Zijie2; (1Institute of Artificial Intelligence and Blockchain, Guangzhou University, Guangdong, Guangzhou, China;2Faculty of Data Science, City University of Macau, Macau, China;3School of Mathematics and Physics, Xiamen University Malaysia, Malaysia;4School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China;5Pazhou Lab, Guangdong, Guangzhou, China)
出处: Information Sciences 2023 Vol.634 P27-41
摘要: To further enhance the reliability of Machine Learning (ML) systems, considerable efforts have been dedicated to developing privacy protection techniq ...
作者: Hao,Shengang1;Zheng,Jun1;Yang,Jie1;Sun,Haipeng4;Zhang,Quanxin1;Zhang,Li2;Jiang,Nan3;Li,Yuanzhang1; (1School of Computer Science, Beijing Institute of Technology, Beijing, Beijing, 100081, China;2Department of Media Engineering, Communication University of Zhejiang, Zhejiang, Hangzhou, 310018, China;3State Key Laboratory of Shield Machine and Boring Technology, Henan, Zhengzhou, 450001, China;4School of Computer Science and Technology, Beijing Institute of Technology, Beijing, Beijing, 100081, China)
出处: Information Sciences 2023 Vol.634 P85-100
摘要: Condition-based maintenance (CBM) policy can avoid premature or late maintenance and reduce system failures and maintenance costs. Most existing CBM s ...