s****i
发帖数: 197 | 1 在下最近准备毕业疯狂找工作中 无奈非名校老板非大牛只得疯狂打怪练级 无奈小弟不
才有几道题目不解还望大虾们不吝赐教在下感激不尽啊！
1. under what scenario factor analysis and PCA are equivalent? (这个记不大清
楚好象是这个意思)
2. when will a linear regression out performs a logistic regression given
the response variable is categorical (binary case or not?)?
3. what is the pros and cons of support vector machine, artificial neural
network, random forest, boosting, respectively?
4. under what scenario will logistic regression and K means be equivalent in
clustering (这道题记不太清了)
答的很糟糕估计是悲剧了贴出来以免大家再载进同样的坑里啊 在此先谢谢众位大虾了
～～ |
s********r
发帖数: 297 | |
C******y
发帖数: 2007 | |
g******2
发帖数: 234 | 4 2. it depends on the underlying error distribution. linear regression will
beat logistic regression if the error distribution is normal and the
response variable is just categorized from continuous variable.
4. the question doesn't seem to be right. logistic regression requires
response variable and is for classification. is the question about logistic
regression and KNN? |
C******y
发帖数: 2007 | 5 4说的是clustering，如果是KNN，那lz就记错了两个词。
logistic
【在 g******2 的大作中提到】
: 2. it depends on the underlying error distribution. linear regression will
: beat logistic regression if the error distribution is normal and the
: response variable is just categorized from continuous variable.
: 4. the question doesn't seem to be right. logistic regression requires
: response variable and is for classification. is the question about logistic
: regression and KNN?
|
s****i
发帖数: 197 | 6 谢谢楼上大虾的解答 对于2可以讲的详细一点吗?比如说怎样categorized from
continuous variable?
4的那个真的想不起来了 如果是logistic regression和knn的话该怎样回答呢??
不知对于1和3该怎样回答呢??
logistic
【在 g******2 的大作中提到】
: 2. it depends on the underlying error distribution. linear regression will
: beat logistic regression if the error distribution is normal and the
: response variable is just categorized from continuous variable.
: 4. the question doesn't seem to be right. logistic regression requires
: response variable and is for classification. is the question about logistic
: regression and KNN?
|
b********r
发帖数: 764 | |
I*****a
发帖数: 5425 | 8 T家面试如此难啊。
in
【在 s****i 的大作中提到】
: 在下最近准备毕业疯狂找工作中 无奈非名校老板非大牛只得疯狂打怪练级 无奈小弟不
: 才有几道题目不解还望大虾们不吝赐教在下感激不尽啊！
: 1. under what scenario factor analysis and PCA are equivalent? (这个记不大清
: 楚好象是这个意思)
: 2. when will a linear regression out performs a logistic regression given
: the response variable is categorical (binary case or not?)?
: 3. what is the pros and cons of support vector machine, artificial neural
: network, random forest, boosting, respectively?
: 4. under what scenario will logistic regression and K means be equivalent in
: clustering (这道题记不太清了)
|
I*****a
发帖数: 5425 | 9 2. depends on the shape of prob(Y=g_i | X=x_i)? its linear in LM, but
sigmoidal in logistic regr.
in
【在 s****i 的大作中提到】
: 在下最近准备毕业疯狂找工作中 无奈非名校老板非大牛只得疯狂打怪练级 无奈小弟不
: 才有几道题目不解还望大虾们不吝赐教在下感激不尽啊！
: 1. under what scenario factor analysis and PCA are equivalent? (这个记不大清
: 楚好象是这个意思)
: 2. when will a linear regression out performs a logistic regression given
: the response variable is categorical (binary case or not?)?
: 3. what is the pros and cons of support vector machine, artificial neural
: network, random forest, boosting, respectively?
: 4. under what scenario will logistic regression and K means be equivalent in
: clustering (这道题记不太清了)
|
A****1
发帖数: 33 | 10 For the first question,
If communalities (common variance) are close to 1, the EFA and PCA are
similar.
in
【在 s****i 的大作中提到】
: 在下最近准备毕业疯狂找工作中 无奈非名校老板非大牛只得疯狂打怪练级 无奈小弟不
: 才有几道题目不解还望大虾们不吝赐教在下感激不尽啊！
: 1. under what scenario factor analysis and PCA are equivalent? (这个记不大清
: 楚好象是这个意思)
: 2. when will a linear regression out performs a logistic regression given
: the response variable is categorical (binary case or not?)?
: 3. what is the pros and cons of support vector machine, artificial neural
: network, random forest, boosting, respectively?
: 4. under what scenario will logistic regression and K means be equivalent in
: clustering (这道题记不太清了)
|
|
|
w********e
发帖数: 944 | |
t*******2
发帖数: 384 | |
S*x
发帖数: 705 | 13 我猜twitter?
【在 t*******2 的大作中提到】
: co ask, 哪个是T家？
|
h***i
发帖数: 3844 | 14 logistic 是要有response的啊？supervised learning和unsupervised learning，不
一样啊
【在 s****i 的大作中提到】
: 谢谢楼上大虾的解答 对于2可以讲的详细一点吗?比如说怎样categorized from
: continuous variable?
: 4的那个真的想不起来了 如果是logistic regression和knn的话该怎样回答呢??
: 不知对于1和3该怎样回答呢??
:
: logistic
|
l*******s
发帖数: 1258 | 15 能问下这个是店面还是？
感觉难度不是太高啊 大部分还记得 以前上machine learning课学过 小部分忘了 |
s****i
发帖数: 197 | 16 这个可以请大虾解答一下吗???或者哪里有书或者材料可以查到的???
先谢谢了啊~~
【在 l*******s 的大作中提到】
: 能问下这个是店面还是？
: 感觉难度不是太高啊 大部分还记得 以前上machine learning课学过 小部分忘了
|
