以下不属于分类器评价指标的是()。
A. 准确率
B. 召回率
C. 轮廓系数
D. 精确率
下面不属于支持向量回归优点的是( )
A. 能抓住数据和特征之间的非线性关系
B. 不容易出现过拟合
C. 异常值影响较小
D. 计算复杂度低
常用的滚动计算函数包括
A. rolling_mean()
B. rolling_sum()
C. rolling_min()
D. rolling_max()
1Tellingyourfriendsomethingpersonalmakesherfeelyou___________hermorethanothers,saysaresearcheratHarvardUniversity.2Peopleoftenfeelfightsarenormalinmarriageandfamilyrelationshipsbutdifficulttoacceptinfriendship.Thiscancausefriendsto___________toofastontheirrelationshipwhentrouble___________.3Studiesshowthathavingafriend___________canreduceworryduringadifficultexperience.“Ourbodies___________thattheydon’thavetorespondsomuchtodangerifsomeoneistheretohelp,”saysaresearcherinpsychology.