《Science China(Information Sciences)》

作品数：4577被引量：9880H指数：26
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《Science China(Information Sciences)》
主办单位：Chinese Academy of Sciences;National Natural Science Foundation of China
最新期次：2025年4期更多>>
发文主题：EDITORBASED_ONED-BNETWORKS更多>>
发文领域：自动化与计算机技术电子电信理学自然科学总论更多>>
发文基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>
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Privacy-preserving recommendation with coarse-grained spatiotemporal contexts
《Science China(Information Sciences)》2025年第4期62-77,共16页Lei CHEN Chen GAO Jiahuan LEI Xiaoyi DU Xinlei SHI Hengliang LUO Depeng JIN Yong LI Meng WANG 
supported in part by National Natural Science Foundation of China(Grant Nos.72188101,62272262,72342032,72442026,62402077);National Key Research and Development Program of China(Grant No.2022YFB3104-702);New Cornerstone Science Foundation through the XPLORER PRIZE,China Postdoctoral Science Foundation(Grant No.2023M741943);Postdoctoral Fellowship Program of CPSF(Grant No.GZC20231373)。
The behavior of users on online life service platforms like Meituan and Yelp often occurs within specific finegrained spatiotemporal contexts(i.e.,when and where).Recommender systems,designed to serve millions of user...
关键词：privacy-preserveing coarse-grained spatiotemporal contexts recommender systems 
Coarse-to-fine lightweight meta-embedding for ID-based recommendations
《Science China(Information Sciences)》2025年第4期78-93,共16页Yang WANG Haipeng LIU Zeqian YI Biao QIAN Meng WANG 
supported in part by Research Projects of National Natural Science Foundation of China(Grant Nos.U21A20470,62172136,72188101);Institute of Advanced Medicine and Frontier Technology(Grant No.2023IHM01080)。
State-of-the-art recommender systems are increasingly focused on optimizing implementation efficiency,such as enabling on-device recommendations under memory constraints.Current methods commonly use lightweight embedd...
关键词：lightweight meta-embedding coarse-to-fine learning ID-based recommendations 
PerFedKG:two-stage information-loop federated knowledge graph for personalized privacy-preserving recommendation systems
《Science China(Information Sciences)》2025年第4期94-95,共2页Fan WANG Xuyun ZHANG Weiming LIU Li LI Yuwen LIU Zhongyuan ZHANG Guanfeng LIU Shengye PANG Xiaolong XU Lianyong QI 
supported in part by National Natural Science Foundation of China(Grant No.62372242)。
Knowledge graphs(KGs)effectively mitigate data sparsity in recommendation systems(RSs)by providing valuable auxiliary information[1].However,traditional centralized KG-based RSs increase the risk of user privacy leaka...
关键词：two stage information loop recommendation systems rss model training personalized privacy preserving recommendation systems federated knowledge graph decentralized data knowledge graphs kgs effectively knowledge graphs 
Silicon integrated microwave photonics
《Science China(Information Sciences)》2025年第4期96-146,共51页Yuansheng TAO Zihan TAO Le LI Yichen WU Bitao SHEN Yimeng WANG Luwen XING Wencan LI Huajin CHANG Jingmei ZHANG Haowen SHU Ninghua ZHU Xingjun WANG 
supported by National Key Research and Development Program of China(Grant No.2022YFB2803700);National Natural Science Foundation of China(Grant Nos.62235002,62327811,62322501,623B2004,12204021);China National Postdoctoral Program for Innovative Talents(Grant No.BX20240014)。
The generation,processing,and measurement of microwave signals using optoelectronic technology on compact chips represent a significant trend in the evolution of microwave photonics(MWP).Among various platforms,silico...
关键词：silicon photonics microwave photonics broadband signal processing hybrid integration 
High-temperature optoelectronic synaptic devices based on 4H-SiC
《Science China(Information Sciences)》2025年第4期147-155,共9页Mingxuan BU Yue WANG Zhenyi NI Dongke LI Deren YANG Xiaodong PI 
supported by National Natural Science Foundation of China(Grant Nos.U22A2075,92364204,91964107,U20A20209);Fundamental Research Funds for the Central Universities(Grant No.226-2022-00200);Leading Innovative and Entrepreneur Team Introduction Program of Hangzhou(Grant No.TD2022012);support from the Qianjiang Distinguished Expert Program in Hangzhou。
Optoelectronic synaptic devices operating at high temperatures have application potential across many important fields,including the aerospace and defense industries.However,limited research exists on such devices.Her...
关键词：optoelectronic synaptic devices 4H-SIC synaptic plasticity neuromorphic computing high-temperature devices 
β-Ga_(2)O_(3)solar-blind ultraviolet light detector with infinite PDCR
《Science China(Information Sciences)》2025年第4期156-161,共6页Haifeng CHEN Xu ZHAO Xiangtai LIU Qin LU Shaoqing WANG Zhan WANG Yifan JIA Yunhe GUAN Lijun LI Yue HAO 
supported by Natural Science Basic Research Program of Shaanxi Province of China(Grant No.2023-JC-YB-574);National Natural Science Foundation of China(Grant No.62304178)。
Ultra-high photo-dark current ratio(PDCR)has always been a fascinating indicator for photodetectors.In this paper,the β-Ga_(2)O_(3) solar-blind ultraviolet(UV)light detector with Ni-Ni double Schottky-junctions struc...
关键词：Ga_(2)O_(3) PDCR Schottky junction solar-blind ultraviolet PHOTODETECTOR 
Temporal-spectral correlation dynamics of Raman random fiber laser
《Science China(Information Sciences)》2025年第4期162-172,共11页Longqun NI Yifei QI Xingyu BAO Jing ZHANG Pan WANG Han WU Zinan WANG 
supported by National Natural Science Foundation of China(Grant Nos.62435002,62075030);Ministry of Science and Technology of China(Grant No.DL2023167001L);Sichuan Science and Technology Program(Grant No.2023YFSY0058);111 Project(Grant No.B14039)。
Raman random fiber laser(RRFL)possesses rich physical properties of spectral,temporal,and spatial domains due to its unique feedback mechanism and complex nonlinear effects.Characterizing and controlling the microscop...
关键词：random fiber laser microscopic characteristics temporal-spectral correlation random spikes nonlinear optics 
High quantum efficiency ultraviolet photodetector based on graphene and truncated silicon nanocones
《Science China(Information Sciences)》2025年第4期173-182,共10页Feng TIAN Shaoxiong WU Xinyu LIU Baoshi QIAO Dong PU Zongwen LI Cheng CHEN Xiaoxue CAO Srikrishna Chanakya BODEPUDI Muhammad Abid ANWAR Xiaochen WANG Yuda ZHAO Bin YU Tawfique HASAN Huan HU Yang XU 
supported by National Key R&D Program of China(Grant No.2022YFA1204304);National Natural Science Foundation of China(Grant No.U22A2076);Zhejiang Provincial Young Talents Program;Natural Science Foundation of Zhejiang Province(Grant No.LDT23F04013F04);China Scholarship Council(Grant No.202106320210)。
Ultraviolet photodetectors have a wide range of applications,covering optical analysis,environmental detection,and security solutions.While silicon is extensively used in photodetection,the performance of silicon-base...
关键词：SILICON GRAPHENE ultraviolet photodetector truncated cones nanostructures 
Ultra-low power MoS_(2)optoelectronic synapse with wavelength sensitivity for color target recognition
《Science China(Information Sciences)》2025年第4期183-192,共10页Bo WEI Yabo CHEN Xiaotong HAN Yan KANG Bujia LIANG Cheng LI Xiaokuo YANG Liang FANG Yuanxi PENG 
supported by National Natural Science Foundation of China(Grant Nos.61832007,62274183);Key Program of National Natural Science Foundation of China(Grant No.U22A2027);National Key Research and Development Program of China(Grant No.2023YFB4502100)。
Optoelectronic synapses that integrate visual perception and pre-processing hold significant potential for neuromorphic vision systems(NVSs).However,due to a lack of wavelength sensitivity,existing NVS mainly focuses ...
关键词：optoelectronic synapse neuromorphic vision system color recognition 2D materials image pre-processing 
Multispectral non-line-of-sight imaging via deep fusion photography
《Science China(Information Sciences)》2025年第4期193-211,共19页Hao LIU Zhen XU Yifan WEI Kai HAN Xin PENG 
supported by National Natural Science Foundation of China(Grant Nos.62272421,62375283);Science Fund Program for Outstanding Young Scholars of Hunan Province(Grant No.2024JJ4044)。
Passive non-line-of-sight(NLOS)imaging is a promising technique that extends visual perception to hidden objects around the corner,offering advantages such as low-cost,portability,and real-time.However,the low quality...
关键词：non-line-of-sight imaging multispectral deep fusion Kolmogorov-Arnold network VIS-SWIR-LWIR multispectral imaging learning-based imaging method 
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