[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fIUe01rF8It1j-giUtQmwtTlQnT0_UUyd3GfuRK8sQpc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":16,"related":17,"source":28,"type":110},[],"2025-05-06 08:14:20",185806933,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":14},85,"fc0c1d00e84a5bdd920ca3eef531981e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffb47e65ee6bbb8f896e6b4fca1783b07.png","机器学习初步","exam_155114386","聚类问题与分类的监督学习任务更加相近",[18,30,39,48,57,66,75,84,93,102],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2025-05-06 08:14:14",185805630,[23,24,25,26],"非负性","同一性","稳定性","直递性","距离度量需满足的基本性质不包括()","v1",0,{"answer":31,"createTime":20,"id":32,"options":33,"question":38,"source":28,"type":29},[],185805640,[34,35,36,37],"留出法","交叉验证法","自助法","以上三个选项都可以","下列什么方法可以用来获得从原始数据集中划分出 &quot;测试集&quot;",{"answer":40,"createTime":20,"id":41,"options":42,"question":47,"source":28,"type":29},[],185805650,[43,44,45,46],"训练集;需要","训练集;不需要","验证集;需要","验证集;不需要","我们通常将数据集划分为训练集,验证集和测试集进行模型的训练,参数的验证需要在()上进行,参数确定后()重新训练模型",{"answer":49,"createTime":20,"id":50,"options":51,"question":56,"source":28,"type":29},[],185805659,[52,53,54,55],"均匀分布","二项分布","泊松分布","正态分布","拉普拉斯修正实质上假设了属性值与类别服从什么先验分布",{"answer":58,"createTime":20,"id":59,"options":60,"question":65,"source":28,"type":29},[],185805669,[61,62,63,64],"具有中心对称性","严格大于0","单调且任意阶可导","不需要写成分段形式","对数几率函数作为单位阶跃函数的替代函数的优点是什么",{"answer":67,"createTime":20,"id":68,"options":69,"question":74,"source":28,"type":29},[],185805685,[70,71,72,73],"较高的簇内相似度","较低的簇内相似度","较大的簇间距离","和某个参考模型的结果相似","一个好的聚类可能存在的特征通常不包括",{"answer":76,"createTime":20,"id":77,"options":78,"question":83,"source":28,"type":29},[],185805709,[79,80,81,82],"经验","专家","规则","实践","机器学习的经典定义是:利用 () 改善系统自身的性能",{"answer":85,"createTime":20,"id":86,"options":87,"question":92,"source":28,"type":29},[],185805724,[88,89,90,91],"部分不独立","部分独立","相互不独立","相互独立","朴素贝叶斯分类器中,对给定类别,模型对所有属性间的独立性有何种假设",{"answer":94,"createTime":20,"id":95,"options":96,"question":101,"source":28,"type":29},[],185805746,[97,98,99,100],"下溢","上溢","内存不足","计算开销大","极大似然中,若直接连乘,易造成什么现象",{"answer":103,"createTime":20,"id":104,"options":105,"question":109,"source":28,"type":29},[],185805758,[106,107,108],"原型聚类","密度聚类","层次聚类","k 均值聚类属于下列哪一种聚类算法",3]