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Cross Validated : Recent Questions and Answers (Page 41)

Find answers to your questions about Cross Validated or help others by answering their Cross Validated questions.

Error metric to compare ratios derived from a binary prediction task

I'm working on a research problem where a binary classification task ultimately produces a ratio downstream. I would like to understand the best way to quantitatively compare the resultant ratio...

Asked on 11/09/2021

0 answer

Machine learning to select features to create predictive model

Sorry if this is a little confused! I am experimenting Forex data using keras to attempt to find phenomena that predicts a rise or fall in a forex symbol's price....

Asked on 11/09/2021 by Atrag

0 answer

Summary statistics to collect for data that is too large in volume

I have some data on performance counters for some computers. It includes things like memory usage, network usage, etc. emitted every minute (so they are time series). When software updates...

Asked on 11/09/2021 by ryu576

0 answer

Endogeneity testing using correlation test

I am currently testing my linear model using OLS method. The last thing I have to test is endogeneity issue. Is it enough if I test each explanatory variable for...

Asked on 11/09/2021 by sabiste

3 answer

find upper and lower bounds on average causal effect $theta$

I am working on some problems in All of statistics by Wasserman, and I am not quite sure how to tackle this problem. Suppose you are given data $(X_1,...

Asked on 11/09/2021 by MoneyBall

1 answer

How to correct for unequal observation time in poisson regression

So I have data from a number of people on the number of sexual partners they've had in their life so far (self reported, but let's assume they're perfectly accurate...

Asked on 11/09/2021 by Thomas Richardson

1 answer

On gradient boosting and types of encodings

I am having a look at this material and I have found the following statement:For this class of models [Gradient Boosting Machine algorithms] [...] it is both...

Asked on 11/09/2021

0 answer

RFE: Pre-define a specificity threshold

I would like to use recursive feature elimination (implemented via caret in R) to perform feature selection for about 40 test results with 2 possible outcomes. Consequently, RFE either models...

Asked on 11/09/2021

1 answer

Best software for image segmentation for time-series images?

I am currently measuring fluorescence for cells using time lapse images. For each sample, I have 50-100 cells. I currently manually select the ROIs (individual cells) using HCImage and measure...

Asked on 11/09/2021 by tshast2

1 answer

semantic value of a convolution neural network

It seems to be common knowledge in computer vision that in a convolution neural network, layers closer to the image has higher resolution but lower semantic value, and vice visa...

Asked on 11/09/2021

1 answer

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