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    Study on privacy preserving encrypted traffic detection by Xinyu ZHANG, Bingsheng ZHANG, Quanrun MENG, Kui REN

    Published 2021-08-01
    “…Existing encrypted traffic detection technologies lack privacy protection for data and models, which will violate the privacy preserving regulations and increase the security risk of privacy leakage.A privacy-preserving encrypted traffic detection system was proposed.It promoted the privacy of the encrypted traffic detection model by combining the gradient boosting decision tree (GBDT) algorithm with differential privacy.The privacy-protected encrypted traffic detection system was designed and implemented.The performance and the efficiency of proposed system using the CICIDS2017 dataset were evaluated, which contained the malicious traffic of the DDoS attack and the port scan.The results show that when the privacy budget value is set to 1, the system accuracy rates are 91.7% and 92.4% respectively.The training and the prediction of our model is efficient.The training time of proposed model is 5.16 s and 5.59 s, that is only 2-3 times of GBDT algorithm.The prediction time is close to the GBDT algorithm.…”
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    Spatial Differentiation Mechanism of Urban Housing Prices from the Perspective of Amenity: A Case Study of Nanjing by Guangyuan Feng, Xiaopu Bi, Jingxiang Zhang, Tianhan Cheng

    Published 2025-05-01
    “…An evaluation indicator system of human environment quality was established under the amenity connotation based on three dimensions of natural amenity, artificial amenity and social atmosphere amenity, and the Gradient Boosting Decision Tree (GBDT) algorithm was applied to investigate the impact of different amenity factors on housing prices. …”
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    Associations between life’s essential 8 and arthritis among adults in United States: a national-wide longitudinal study by Feiying He, Xiangchun Xu, Hongwen Yu, Ziyang Miao, Zhaolin Fu, Lei Shi

    Published 2025-03-01
    “…Subgroup analyses ideallighted poorer scores for smoking (P < 0.002, poor_socre and intermediate_score) and physical activity(P = 0.001, poor_score) as significant risk factors. Gradient Boosting Decision Trees predicted disease risk, with age, HDL cholesterol, and blood pressure identified as the three most significant predictive factors. …”
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    Examining Nasdaq Market Data and Presenting an Optimized Model by Extreme Gradient Boosting Regression and Artificial Bee Colony by Ali Ahmadpour

    Published 2025-06-01
    “…The study introduces an Extreme Gradient Boosting Regression (XGBR) model optimized with three distinct metaheuristic algorithms: Battle Royal Optimization (BRO), Moth Flame Optimization (MFO), and Artificial Bee Colony (ABC). …”
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    Impacts of characteristics of service facilities in metro station area on housing prices by Minqing Zhu, Chengwang Zhou, Yizhe Yang, Hongjun Cui, Xinwei Ma

    Published 2024-12-01
    “…The results showed that: (1) the development of metro stations encourages the evolution of housing prices and service facilities, and there is a more pronounced concentration effect of service facility allocation intensity on the urban central circle; (2) the characteristics of service facilities in metro station areas have a nonlinear effect and threshold effect on housing prices; (3) the gradient boosting decision tree model explains a premium effect, which is better than the ordinary least square model; (4) kernel the density is the most significant, and affects housing prices, with per capita quantity decreasing as diversity increases over time. …”
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