Cross Validated Questions, Problems & Solutions : TransWikia.com ~ Page 69

How to compare gender proportions in a population?

I want to test if more women are graduating from high school than men, the last ten years. I want to use percentages, not raw data. (2007-2017 percentages of women...

Asked on 01/04/2021 by New

1 answer

Pseudo R2 and prob>chi2

I am running a profit regression and I am finding difficulties in interpreting the prob>chi2 =0.0000 statistic. Also, should I be concerned that Pseudo R2=0.0209? How do I interpret it....

Asked on 01/03/2021 by Nsamwa

1 answer

Saddle-free Newton method for SGD - while Newton attracts saddles, is it worth to actively replel them?

While 2nd order methods have many advantages, e.g. natural gradient (e.g. in L-BFGS) attracts to close zero gradient point, which is usually saddle. Other try to pretend that our very...

Asked on 01/03/2021 by Jarek Duda

1 answer

Relative Error is not normally distributed

I have this model in machine learning, and in the end, I calculate the Relative Error to find out how off the model is from predicting based on the real...

Asked on 01/03/2021

1 answer

Tensor product between an ispline and a bspline for fitting data that should be monotonic in one dimension

I'm not very familiar with the process for solving tensor product basis fittings. I've done some work with fitting an ispline basis with a non-negative-least-squares solver to fit a...

Asked on 01/03/2021

0 answer

Interpretation of TSA::arimax output model is presented in R

I have a relatively simple problem, but yet taking some time to solve it. I am using the arimax() function from the TSA package. (Note: not arima() from the stats...

Asked on 01/02/2021 by wasif

1 answer

Training samples with no labels: To include or not to include?

I am working on a multi-label classification problem. Each sample is capable of taking more than a single label. Sometimes samples don't have any labels associated with them. My dataset...

Asked on 01/02/2021 by Aishwarya A R

1 answer

Custom Loss Function - Inducing sparsity

From the comments, I realized that my question wasn't clear enough, so I'll start with a short background. I am trying to construct an attention model that performs classification based...

Asked on 01/02/2021 by Mark.F

1 answer

Belief propagation on Polytree

I'm working through exercises on Belief Propagation and the Junction Tree Algorithm and I'm stuck with the following problem. Consider the distribution P(A,B,C,D,E,F,G,H)=P(A)P(B)P(C)P(F) P(D|A,B)P(E|B,C)P(G|D,F)P(H|E,F), i.e. ...

Asked on 01/02/2021 by JonaSc

0 answer

Q: Dividing maximum value by minimum value and reporting the difference "in times"

I found this plot good for presenting regional disparities; however, which terms should I use with such figure? This graph shows differences in mean salary between country regions by study...

Asked on 01/02/2021

0 answer

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