[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftWJfLK_Q6mCf5yGsCPe--i6AoAY4xQFMptd6alOWJls":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-12-05 09:27:29",169080201,[8,9,10,11],"pig","kettle","data-integration","spoon",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"a43ae8db2adcf5b9a3610e2bf29f70d7","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0dddceff3241f4dd17f1eea7df3ca647.png","数据采集与清洗","work_39461664","NO.2习题---认识数据预处理技术","搭建Kettle环境时,将解压后的文件夹重命名为",[21,32,41,50,57,66,75,84,93,102],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],169080192,[25,26,27,28],"增加数据量","提高数据挖掘结果的质量","减少数据存储空间","增加数据多样性","数据预处理的主要目的是什么","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],169080193,[36,37,38,39],"填补遗漏数据值","平滑有噪声数据","增加新数据特征","识别或除去异常值","在数据预处理中,不属于数据清理技术的是",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],169080194,[45,46,47,48],"数据采样","数据清理","数据集成","数据转换","实体识别问题属于数据预处理中的哪个阶段",{"answer":51,"createTime":5,"id":52,"options":53,"question":56,"source":30,"type":31},[],169080195,[54,47,48,55],"数据清洗","数据归约","在数据预处理中,用于减少数据集大小的是",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":30,"type":31},[],169080196,[61,62,63,64],"过滤式","封装式","随机式","嵌入式","下列哪项不是特征选择的类型",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":30,"type":31},[],169080197,[70,71,72,73],"pig-0.17.0.tar.gz","pig-0.17.0-src.tar.gz","pig-0.17.0-bin.tar.gz","pig-0.17.0.zip","在搭建Pig系统环境时,下载的文件名是什么",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":30,"type":31},[],169080198,[79,80,81,82],"source ~\u002F.bashrc","sudo source ~\u002F.bashrc",". ~\u002F.bashrc","config ~\u002F.bashrc","配置Pig环境变量后,需要执行哪个命令使其生效",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":30,"type":31},[],169080199,[88,89,90,91],"pdi-ce-7.0.0.0-25.tar.gz","pdi-ce-7.0.0.0-25.zip","kettle-7.0.0.0-25.zip","kettle-7.0.0.0-25.tar.gz","在搭建Kettle系统环境时,下载的文件名是什么",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":30,"type":31},[],169080200,[97,98,99,100],".\u002Fkettle.sh",".\u002Fspoon.sh",".\u002Fpan.sh",".\u002Fstart-kettle.sh","验证Kettle是否安装成功的命令是什么",{"answer":103,"createTime":5,"id":6,"options":104,"question":19,"source":30,"type":31},[],[8,9,10,11]]