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A differentially private nonnegative matrix factorization for recommender system
期刊论文
Information Sciences, 2022, 卷号: 592, 页码: 21-35
作者:
Ran, Xun
;
Wang, Yong
;
Zhang, Leo Yu
;
Ma, Jun
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2022/04/21
Benchmarking
Collaborative filtering
Economic and social effects
Information services
Large dataset
Matrix algebra
Matrix factorization
Privacy-preserving techniques
Differential privacies
Factorization methods
Filtering problems
Imputation
Non-negativity
Nonnegative matrix factorization
Objective functions
Personalized information services
Polynomial expression
User data
A Process-Based Model Integrating Remote Sensing Data for Evaluating Ecosystem Services
期刊论文
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS, 2021, 卷号: 13, 期号: 6, 页码: 22
作者:
Niu, Zhongen
;
He, Honglin
;
Peng, Shushi
;
Ren, Xiaoli
;
Zhang, Li
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  |  
浏览/下载:69/0
  |  
提交时间:2021/08/19
CEVSA-ES model
ecosystem services
remote sensing
model-data fusion
China
Exploring spatial path dependence in industrial space with big data: A case study of Beijing
期刊论文
CITIES, 2021, 卷号: 108, 页码: 11
作者:
Yang, Zhenshan
;
Wu, Di
;
Wang, Dawei
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  |  
浏览/下载:41/0
  |  
提交时间:2021/03/15
Spatial path dependence
Big data
Machine learning
Information services industry
Beijing
Medical Term and Status Generation From Chinese Clinical Dialogue With Multi-Granularity Transformer
期刊论文
IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 2021, 卷号: 29, 页码: 3362-3374
作者:
Li, Mei
;
Xiang, Lu
;
Kang, Xiaomian
;
Zhao, Yang
;
Zhou, Yu
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  |  
浏览/下载:34/0
  |  
提交时间:2021/12/28
Medical diagnostic imaging
Transformers
Task analysis
Medical services
Computational modeling
Semantics
Data mining
Medical dialogue
multi-granularity
attention mechanism
natural language understanding
sequence to sequence learning
Temporal Pattern-Aware QoS Prediction via Biased Non-Negative Latent Factorization of Tensors
期刊论文
IEEE TRANSACTIONS ON CYBERNETICS, 2020, 卷号: 50, 期号: 5, 页码: 1798-1809
作者:
Luo, Xin
;
Wu, Hao
;
Yuan, Huaqiang
;
Zhou, MengChu
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  |  
浏览/下载:16/0
  |  
提交时间:2020/08/24
Quality of service
Hidden Markov models
Data models
Training
Web services
Time factors
Latent factor analysis (LFA)
latent factorization of tensor
learning temporal pattern
linear bias (LB)
non-negative latent factorization of tensor
non-negativity constraint
quality-of-service (QoS) prediction
Vitality of Urban Parks and Its Influencing Factors from the Perspective of Recreational Service Supply, Demand, and Spatial Links
期刊论文
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2020, 卷号: 17, 期号: 5, 页码: 1-10
作者:
Zhu, Jieyuan
;
Lu, Huiting
;
Zheng, Tianchen
;
Rong, Yuejing
;
Wang, Chenxing
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  |  
浏览/下载:12/0
  |  
提交时间:2021/08/31
park vitality
recreational services
volunteered check-in data
POI-based urban function mix
Beijing
Temporal variations in ambient air quality indicators in Shanghai municipality, China
期刊论文
SCIENTIFIC REPORTS, 2020, 卷号: 10, 期号: 1, 页码: -
作者:
Chen, Yuanyuan
;
Bai, Yang
;
Liu, Hongtao
;
Alatalo, Juha M.
;
Jiang, Bo
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  |  
浏览/下载:70/0
  |  
提交时间:2020/08/07
VEHICLE EMISSION INVENTORY
PROVINCIAL CAPITAL CITIES
NRT TRAFFIC DATA
ECOSYSTEM SERVICES
SOURCE APPORTIONMENT
OZONE PRODUCTION
POLLUTION
HEALTH
IMPACT
PM2.5
Perceiving Beijing & x2019;s & x201C;City Image & x201D; Across Different Groups Based on Geotagged Social Media Data
期刊论文
IEEE ACCESS, 2020, 卷号: 8, 页码: 93868-93881
作者:
Peng, Xia
;
Bao, Yi
;
Huang, Zhou
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2021/07/09
Urban areas
Social network services
Cultural differences
Big Data
Radio spectrum management
Text analysis
City image
geotagged data
hotspots
social media
text analysis
A k-anonymous location privacy protection method of dummy based on approximate matching
期刊论文
Kongzhi yu Juece/Control and Decision, 2020, 卷号: 35, 期号: 1, 页码: 65-73
作者:
Zhang, Yong-Bing
;
Zhang, Qiu-Yu
;
Li, Zong-Yi
;
Duan, Hong-Xiang
;
Zhang, Mo-Yi
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2020/11/14
Data privacy
Efficiency
Location
Quality of service
Semantics
Telecommunication services
Approximate matching
Candidate sets
Dummy
Location privacy protection
Physical dispersion
Privacy protection
Semantic features
Semantic similarity
Social weather: A review of crowdsourcing-assisted meteorological knowledge services through social cyberspace
期刊论文
GEOSCIENCE DATA JOURNAL, 2019, 页码: 19
作者:
Zhu, Yifan
;
Zhang, Sifan
;
Li, Yinan
;
Lu, Hao
;
Shi, Kaize
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  |  
浏览/下载:18/0
  |  
提交时间:2020/03/30
crowdsourcing
data-driven
knowledge services
meteorological services
social space
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