All Questions

2
votes
2answers
59 views
+50

Which layer in a CNN able to detect spinned and translated objects

Conv layer or max pooling layer or anything else does the job? In my opinion, Conv layer or max pooling layer are able to do the job only when the rotations or translations are not too big.
-1
votes
0answers
37 views
+50

on the understanding of visualization of the fully connected layer

When the final fully connected layer is visualized, it shows a big picture consisting of mini-pictures patching together and overlapping with each other. The mini-pictures are visibly recognizable to ...
0
votes
0answers
89 views
+50

Logistic regression including instrumental variable (“ivprobit” in R) has coefficients with much reduced significance

I am trying to run a logistic regression including instrumental variables by using "ivprobit" function in R from the package called "ivprobit". If I do not include the instrumental variable, the "glm"...
3
votes
3answers
98 views
+50

Describing Specialization

I am trying to formalize an observed trend. To simplify what I am trying to do, suppose a dataset of salesmen selling items A, B, C, D. In the year 1950, the proportion of each sold is (0.2, 0.2, 0.1, ...
5
votes
3answers
148 views
+200

A/B testing ratio of sums

Context Consider the following scenario for a company selling goods online. A user can purchase several items (i.e. basket of items), some of which are of particular importance and are tracked ...
1
vote
1answer
26 views
+50

How to measure the consistency of improvement on different conditions?

I want to measure whether the speed improvement of method 1 over method 2 is consistent on different conditions. Below are two examples of the speedup values of method 1 over method 2 on 5 conditions. ...
0
votes
0answers
25 views
+50

How to solve an adaptive lasso model?

Assuming we are working with a linear regression model, lasso penalization solves: \begin{equation} \min_{\beta}\left\{\left\lVert y-X\beta\right\rVert_2^2+\lambda\sum_{j=1}^p \left\vert \beta_j\...
0
votes
0answers
37 views
+50

Equation (3.23) GP for ML book

This is the computation of the variance when we do Laplace Approximation for inference in binary classification. I do not understand why the variance is decomposed into these two terms.
0
votes
1answer
36 views
+50

How to calculate conditional hazard at time zero

I am looking for a statistical method to calculate the conditional hazard before the diagnoses or study has started; in other words, time is not a variable. For example, here is a hypothetical ...
3
votes
0answers
59 views
+200

Regression with dependent data with low dependence

Suppose you have data that is grouped in one way or another and therefore the assumption of independence is suspect. But you look at the intraclass correlation (or autocorrelation) and it is very ...