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【爬虫案例】采集农产品每日价格数据采集农产品每日价格数据一、爬取网站。with open(r''''''''.\猪肉报价.csv'''''''', mode=''''''''w+'''''''', newline='''''''''... 阅159 转5 评0 公众公开 22-12-31 23:30 |
with open(r''''''''.\开放基金排行数据.csv'''''''', mode=''''''''w+'''''''', newline='''''''''''''''', encoding='''&... 阅37 转0 评0 公众公开 22-12-30 08:39 |
北京:https://tianqi.2345.com/wea_history/54511.htm上海:https://tianqi.2345.com/wea_history/58362.htm广州:https://tianqi.2345.com/wea_history/59287.htm深圳:https://tianqi.2345.com/wea_history/59493.htm. 阅78 转4 评0 公众公开 22-12-26 11:57 |
【优秀作业】粒子群算法(Python)粒子群优化算法一、概述。# 函数用于计算粒子适应度值def funAckley(x): c = 20 y = -1.0 * c * np.exp(-0.2 * np.sqrt((x[0] ** 2 + x[1] ** 2) / 2)) \ - np.exp((np.cos(2 * np.pi * x[0]) + np.cos(2 * np.pi * x[1])) / 2) \ + c + np.exp(1) return y.,对应的粒子位置为,PSO算... 阅225 转5 评0 公众公开 22-11-20 04:54 |
【组队学习】韩宇:Kaggle UW-Madison GI Tract Image Segmentation 银牌方案。 阅46 转0 评0 公众公开 22-10-02 00:12 |
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【组队学习分享】齐国梁:MarTech Challenge 点击反欺诈预测。 阅32 转0 评0 公众公开 22-09-17 00:18 |