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项目背景 A 石油集团原有一套“勘探与生产技术数据管理系统”，底层结构为 JAVA，展现部分用报表工具。该系统的设计目标是宏观展示全国油井数据，监控各项关键指标，防范已知和未知风险，追溯并解决 ..
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多维分析主要面向业务用户提供数据查询分析服务，由于业务人员不懂 SQL，也无法完成多表关联（有意义的查询经常是基于多表的），所以在多维分析建模阶段需要将多表转换成单表，也就是 CUBE。这样用 ..
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我们知道一个完整的数据挖掘项目通常包含以下流程（1）业务理解、（2）数据理解、（3）数据准备、（4）数据预处理和建模、（5）模型评估、（6）模型部署应用。而要完成一个数据挖掘任务，必须要具备两 ..
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看看问题 S银行POS交易情况报表很慢，业务人员要等待一个多小时（3700秒）才能看到结果，严重影响业务。报表表样如下： [图片] 解决步骤 首先，要理解业务和计算特征。POS交易情况表连接数 ..
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随着企业信息化建设的深入，很多机构的生产系统已建设完成，在保证生产的有序进行后，如何更有效地进行经营决策成了管理者面临的最大任务。商业智能（BI）就是在这种背景成为支撑企业经营分析的一大利器。 ..
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随着人工智能技术的火热，各种 AI 培训也应运而生，翻阅各种社交网站和 APP，几乎每天都能刷到 Python、人工智能相关的文章，点进去很大一部分都是培训机构给自家 AI 课程打的广告。那么 ..
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机器学习发展到今天已经有众多优秀前辈给我们贡献了各种各种现成的开源包 以最流行的 Scikit-learn 为例，提供了包括回归 (Regression)、降维(Dimensionality ..
