Browsing by Author "Liu, Yu"
Now showing items 1-6 of 6
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Climate Warming Consistently Reduces Grassland Ecosystem Productivity
Wu, Gao-Lin; Zheng, Zhen; Alatalo, Juha Mikael; Zhao, Jingxue; Liu, Yu ( Advanced Earth And Science , 2021 , Article)Future climate may profoundly impact the functioning of terrestrial ecosystems. However, we do not know well how the functioning of different types of grassland ecosystems is associated with variation in temperature and ... -
Deep CNN-Based real-time traffic light detector for self-driving vehicles
Ouyang, Zhenchao; Niu, Jianwei; Liu, Yu; Guizani, Mohsen ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Due to the unavailability of Vehicle-to-Infrastructure (V2I) communication in current transportation systems, Traffic Light Detection (TLD) is still considered an important module in autonomous vehicles and Driver Assistance ... -
An Efficient, Accountable, and Privacy-Preserving Access Control Scheme for Internet of Things in a Sharing Economy Environment
Liu, Yu; Xue, Kaiping; He, Peixuan; Wei, David S.L.; Guizani, Mohsen ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)The Internet of Things (IoT) has set off a new information technology revolution due to its convenience and efficiency. An IoT enables sharing economy, as more people are willing to share their own things (mostly mobile ... -
Information on harm outcomes was insufficiently reported in systematic reviews and meta-analyses of individual participant data
Xu, Chang; Kwong, Joey S. W.; Jia, Pengli; Liu, Yu; Zhang, Weixin; Qin, Zongshi; Liu, Tongzu... more authors ... less authors ( John Wiley and Sons Inc , 2021 , Other)Meta-analysis is an important tool for summarizing findings from scientific research. But for harm outcomes,issues may arise due to the distribution problems, zero-events problems, as well as low statistical power. Individual ... -
Methodological issues of systematic reviews and meta-analyses in the field of sleep medicine: A meta-epidemiological study
Xu, Chang; Furuya-Kanamori, Luis; Kwong, Joey S.W.; Li, Sheng; Liu, Yu; Doi, Suhail A.... more authors ... less authors ( Elsevier , 2021 , Article)An increasing number of systematic reviews and meta-analyses (SRMAs) have been published in the field of sleep medicine. We evaluated the methodological issues of these SRMAs. A protocol was developed in advance. Three ... -
Sedentary Behavior, Physical Activity, and All-Cause Mortality: Dose-Response and Intensity Weighted Time-Use Meta-analysis.
Xu, Chang; Furuya-Kanamori, Luis; Liu, Yu; Færch, Kristine; Aadahl, Mette; A Seguin, Rebecca; LaCroix, Andrea; Basterra-Gortari, F Javier; Dunstan, David W; Owen, Neville; Doi, Suhail A R... more authors ... less authors ( Elsevier , 2019 , Article)Previous studies have placed those with excessive sedentary behavior at increased risk of all-cause mortality. There is evidence of interdependency of sedentary behavior with physical activity, and its elucidation will ...