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基于数据挖掘的智能电网调度技术研究 被引量:17
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作者 石智永 管晓峰 +2 位作者 侯尽然 王国民 耿琦 《电子设计工程》 2019年第22期170-174,共5页
为满足智能电网调度系统对高精度调度技术的需求,文中将数据挖掘技术应用于智能电网调度平台中,构建了基于数据挖掘的调度挖掘模型。根据模型文中针对电力负荷预测,提出了一种基于粒子群优化和支持向量机的电力负荷预测方法。讨论了基... 为满足智能电网调度系统对高精度调度技术的需求,文中将数据挖掘技术应用于智能电网调度平台中,构建了基于数据挖掘的调度挖掘模型。根据模型文中针对电力负荷预测,提出了一种基于粒子群优化和支持向量机的电力负荷预测方法。讨论了基于数据挖掘的电力负荷预测算法,并描述了关键模块的实现。最后给出了实际负荷曲线的对比,从数据来看文中的预测算法相对于传统ID3预测算法更接近实际负荷。因此,提出的方法可以为实现先进的智能电网调度系统提供帮助。 展开更多
关键词 数据挖掘 智能电网 粒子群优化 支持向量机
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Environmental and Psycho-social Factors Related to Prostate Cancer Risk in the Chinese Population:a Case-control Study 被引量:5
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作者 LI Mei Ling LIN Ji +11 位作者 HOU Jian guo XU Lei CUI Xin Gang XU Xing Xing YU Yong Wei HAN Xue wang guo min guo Jian ming XU Dan Feng THOMPSON Timothy C CAO Guang Wen ZHANG Hong Wei 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2014年第9期707-717,共11页
Objective To study the risk environmental and psycho-social factors associated to prostate cancer (PCa) in Chinese population. Methods 250 PCa patients and 500 controls were enrolled in this case-control study. Info... Objective To study the risk environmental and psycho-social factors associated to prostate cancer (PCa) in Chinese population. Methods 250 PCa patients and 500 controls were enrolled in this case-control study. Information was collected and logistic regression analysis was used to estimate the odds ratios (OR) and 95% confidence intervals (95% CI) for relationship between lifestyle, eating habits and psycho-social factors with PCa risk. Results Green vegetables and green tea were associated with a decreased risk of PCa (0R=0.39, 95% CI: 0.28-0.53; 0R=0.59, 95% Cl: 0.40-0.87, respectively). Family history of PCa (0R=7.16, 95% CI: 2.01-25.49), history of prostate diseases (0R=2.28, 95% Cl: 1.53-3.41), alcohol consumption (0R=1.97, 95% CI: 1.33-2.90), red meat consumption (0R=1.74, 95% CI: 1.20-2.52), barbecued (0R=2.29, 95% CI: 1.11-4.73) or fried (0R=2.35, 95% CI: 1.24-4.43) foods were related with increased PCa risk. Negative psycho-social factors including occupational setbacks (0R=1.61, 95% CI: 2.00-2.59), marital separation (0R=1.94, 95% CI: 1.29-2.91), self-contained suffering {0R=2.37, 95% CI: 1.58-3.55), and high sensitivity to the personal comments (0R=1.73, 95% CI: 1.18-2.54) were related to PCa. Conclusion Regular consumption of green vegetables and green tea may suggest protective effects on PCa. Alcohol consumption, red meat consumption and barbecued or fried foods were associated with PCa. Negative psycho-social factors may also play a role in the incidence of PCa in Chinese population. 展开更多
关键词 Case-control study LIFESTYLE Dietary factors Psycho-social factors Prostate cancer
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