[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ff1jTmdASnx6iLFkGPRbjwz4uJkDd1uJj8s2kUXG9mhI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":29,"type":90},[],"2026-01-10 18:22:37",308850802,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},111,"f5c7bf6c2635b2d6ee5e3111e5576533","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48eba3395437dd881b1b9275a0ad1028.png","导游业务","work_49382768","25y第三章—判断题","我国已建成"四纵四横"为重点的高速铁路网,其中"四纵"指的是青岛一太 原、徐州一兰州、南京—成都和杭州—昆明.( )",[19,31,40,49,58,67,76,85,91,94],{"answer":20,"createTime":21,"id":22,"options":23,"question":28,"source":29,"type":30},[],"2025-12-31 20:24:56",296981845,[24,25,26,27],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fff7e7d405f6f650ca7c2e68e706be7c8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F315e4bd2ac589db109aa34fed130e6de.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2606de6030b2097c2d7d6d0631442ba8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa68828a51b7c9a5c80bd6aa6a0f1b5d1.png\">","函数 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F957f7377cbbe45ac03086e4283b648bd.png\"> 在点 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a85045064921421d97678ba6f129da8.png\"> 处的梯度是","v1",0,{"answer":32,"createTime":21,"id":33,"options":34,"question":39,"source":29,"type":30},[],296981846,[35,36,37,38],"一个标量","一个向量","一个矩阵","一个标量场","设 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F741dd3e54315f8162bc74118c5ae7872.png\"> 是一个标量函数,其梯度 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe32ffd8a08bd11ce6e863fd8759da9fa.png\"> 是",{"answer":41,"createTime":21,"id":42,"options":43,"question":48,"source":29,"type":30},[],296981847,[44,45,46,47],"模型参数更新太慢","模型在最小值附近震荡甚至发散","模型收敛速度显著提升","模型准确率提高但训练时间增加","在使用梯度下降法进行优化时,学习率过大可能导致什么问题",{"answer":50,"createTime":21,"id":51,"options":52,"question":57,"source":29,"type":30},[],296981848,[53,54,55,56],"决定模型中层数的多少","控制损失函数的形式","调整权重更新的步长","用于防止过拟合","在神经网络训练中,学习率的作用是什么",{"answer":59,"createTime":21,"id":60,"options":61,"question":66,"source":29,"type":30},[],296981849,[62,63,64,65],"模型快速收敛到局部最优解","模型无法收敛","模型计算资源占用过多","模型需要更多迭代次数才能达到收敛","若学习率设置得太小,最可能出现的问题是",{"answer":68,"createTime":21,"id":69,"options":70,"question":75,"source":29,"type":30},[],296981850,[71,72,73,74],"衡量模型预测结果与真实值之间的差异","用于确定数据集的分布特征","用于对特征空间进行降维处理","优化算法的收敛速度","在机器学习中,损失函数的主要作用是什么",{"answer":77,"createTime":21,"id":78,"options":79,"question":84,"source":29,"type":30},[],296981851,[80,81,82,83],"最大化损失值","最小化损失值","增加模型的泛化能力","减小模型的偏差","损失函数的梯度下降法更新参数的依据是",{"answer":86,"createTime":5,"id":87,"options":88,"question":89,"source":29,"type":90},[],308850801,[8,9],"JC错卡 (JC错 C对rd),1980年由日本最大的JC错信用卡公司发行.( )",3,{"answer":92,"createTime":5,"id":6,"options":93,"question":17,"source":29,"type":90},[],[8,9],{"answer":95,"createTime":5,"id":96,"options":97,"question":98,"source":29,"type":90},[],308850803,[8,9],"含有虎骨、犀牛角等成分的中药材、中成药禁止出境.( )"]