首页 > 高职专科
题目内容 (请给出正确答案)
[多选题]

关于Dropout说法正确的是:()。

A.Dropout背后的思想其实就是把DNN当做一个集成模型来训练,之后取所有值的平均值,而不只是训练单个DNN

B.DNN网络将Dropout率设置为p,也就是说,一个神经元被保留的概率是1-p。当一个神经元被丢弃时,无论输入或者相关的参数是什么,它的输出值就会被设置为0

C.丢弃的神经元在训练阶段,对BP算法的前向和后向阶段都没有贡献。因为这个原因,所以每一次训练,它都像是在训练一个新的网络

D.Dropout方法通常和L2正则化或者其他参数约束技术(比如MaxNorm)一起使用,来防止神经网络的过拟合

查看答案
答案
收藏
如果结果不匹配,请 联系老师 获取答案
您可能会需要:
您的账号:,可能还需要:
您的账号:
发送账号密码至手机
发送
安装优题宝APP,拍照搜题省时又省心!
更多“关于Dropout说法正确的是:()。”相关的问题
第1题
减少神经网络过拟合的说法,以下哪些是错误的()?

A.通过正则化可以减少网络参数的个数,一定程度可能增加过拟合

B.利用L1或L2正则化可以使权重衰减,从而一定程度上减少过拟合

C.在神经网络训练过程中类似dropout减少神经元或相关链接权的数量

D.通过增加数据扰动的数据增强减少了神经网络的过拟合

点击查看答案
第2题
机器学习模型经常使用Dropout层构造全连接网络。()
点击查看答案
第3题
以下哪个是AlexNet的创新点()?

A.共享权重

B.dropout

C.Relu激活函数和重叠池化

D.双GPU训练(分组卷积)

点击查看答案
第4题
防止神经网络中过度拟合的最常用方法的是()

A.获取更多训练数据

B.减少网络容量

C.添加权重正规化

D.添加dropout

点击查看答案
第5题
模型训练中避免过拟合的策略有哪些()。

A.提前停止训练

B.Dropout

C.延迟停止训练

D.L2,L1正则

点击查看答案
第6题
在一个神经网络中,下面哪种方法可以用来处理过拟合()

A.Dropout

B.分批归一化(BatchNormalization)

C.正则化(regularization)

D.都不可以

点击查看答案
第7题
The new studies show that fewer than half of the 9th graders in many of the nation’s l
argest cities,ever graduate.The studies clearly show that the dropout rate isn’t dropping.And,in particular,the dropout rate isn’t dropping for poor and minority students.

Amazingly,though so many people regret the rising dropout rate,our schools continue to lack formal plans—or any plans—about students’ motivation.Most schools have no game plans to ensure that students understand that school will be completely necessary.Schools expect the children to act as the school is important,but they never teach them to believe that.

Years ago,families ensured that the offspring recognized the value of school.But in many modern families,the children may fail to recognize the importance of school life just because these families may actually tell the children that school is not important.Since many families are not motivating their children to be interested students,young professionals,like teachers,may need to provide this training.Otherwise,it is likely that the dropout rate will continue to not drop,but only worsen.

Here are some strategies to convince even the most apathetic students that they must stay in school.

Ask students if they will ever need to work:The world has changed.100 years ago,factory work was the booming job,and it required no education.Today,factories are increasingly automated.Most computer­related jobs require education and at least a high school diploma.

Ask students which century they will be prepared for:In 1900,the most common jobs were farm laborer and domestic servant—education not needed.Now,the most common jobs are office and sales worker—education and diploma usually needed.6 out of 10 people today work in a store or an office.

Ask students to devise a way that the employee could be replaced.For example,the coming trend in fast food is to use computers rather than people to run the restaurant.A prototype is apparently already being tested.The students should discover that most jobs that lack education and diploma requirements will be ripe for automation.

1.By saying “the dropout rate isn’t dropping”,the author means to say that ________.

A、most of the 9th graders can afford to go to school

B、quite a few of the 9th graders can graduate

C、the majority of the 9th graders cannot graduate

D、the minority of the 9th graders can’t graduate

2.The author’s attitude towards the schools is ________.

A、Criticism

B、Praise

C、Ignoring

D、Support

3.With the help of some professionals,________.

A、fewer students may stay in schools

B、some parents will be more convinced of their children’s future

C、the dropout rate in schools may drop

D、all the kids problems should be solved

4.What does the underlined word “offspring” probably mean?

A、friends

B、Students

C、Children

D、Parents

5.According to the passage,________ doesn’t need education.

A、an automation job of today

B、a computer­related job now

C、an office job at present

D、a domestic servant’s job in 1900

点击查看答案
第8题
过拟合问题是模型在训练集表现较好,但在测试集表现较差,为了避免过拟合问题,我们可以采取以下哪些方法?()

A.数据集合扩充

B.L1和L3正则化

C.提前停止训练

D.使用Dropout方法

点击查看答案
第9题
A review of exam standards is to be announced, because______.A.there are rumors that some

A review of exam standards is to be announced, because______.

A.there are rumors that some universities admit A-level failures

B.there are criticisms on the national educational performance

C.there is controversy over an alarming dropout rate of new vocational equivalents

D.there are suspicions on the feasibility of foundation course

点击查看答案
第10题
In America, you can achieve if you are prepared. You can soar(高飞)as far as your knowledg

In America, you can achieve if you are prepared. You can soar(高飞)as far as your knowledge, drive and social skills will take you. The hitch is that although most of our children are born with incredible potential, far too many of them never see their promises fulfilled because their brains dont get enough stimulation(刺激)early in life. Jon Fine, CEO and president of United Way of King County, showed slides(幻灯片)of two brains during a speech Friday. One showed the brain of a child who received lots of stimulation, and the other the brain of a neglected child. There was a marked difference in the development of the temporal lobe(颞叶), which meant the child who hadnt had rich experiences in his or her early childhood would have trouble processing information. High-quality early education is the surest way to reduce the high school dropout rate because children start learning the moment they enter the world. It could keep more people out of prison and help grow the talent well need to rebuild our economy, mend our environment and write brilliant music. Think about something as simple as vocabulary. How do children acquire the kind of deep and broad repository(储存)of words and language skills that are the foundation of success in school and in life? Obviously, since you need it to succeed in school, waiting until you are in school to learn isnt the best option. Kids learn at home from their parents, and parents arent equally prepared to teach. Kids who arrive at school behind rarely catch up.

Which is the best title of this passage?

A.The Importance of Early Education.

B.The Equal Chance in America.

C.Family Education in America.

D.The Cause of the High-school Dropout Rate.

点击查看答案
第11题
关于阶级与阶层,下列说法正确的是:()
点击查看答案
退出 登录/注册
发送账号至手机
密码将被重置
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改