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All questions asked by Charles_de_Montigny

List all solved & unsolved questions asked by Charles_de_Montigny

GBM: small change in the trainset causes radical change in predictions

1   Data Science Asked on 06/30/2021

gbm  python  xgboost 

Anomaly detection for multiple correlated variables (sensors)

0   Cross Validated Asked on 01/18/2021

anomaly detection  cross correlation  time series 

Clustering with Likert items and N/A option

1   Cross Validated Asked on 01/17/2021

clustering  non response  survey 

Case-Control Study Design for Longitudinal Analysis

0   Cross Validated Asked on 01/17/2021

case control study  hypothesis testing  inference  observational study  panel data 

Multivariate time series vs multi dimensional time series

0   Cross Validated Asked on 01/16/2021

terminology  time series 

Relation between test and train error with gradient descent iterates

0   Cross Validated Asked on 01/16/2021

gradient descent  machine learning  mathematical statistics  risk  training error 

What is the proper specification/classification for estimating # of occurrences until last event in a series of dependent events?

0   Cross Validated Asked on 01/16/2021

probability  simulation  stochastic processes 

How to derive Bias of PCA estimator

0   Cross Validated Asked on 01/16/2021

bias  least squares  pca 

Using gradient information in minimizing error function, in Bishop's Pattern Recognition

3   Cross Validated Asked on 01/16/2021

gradient descent  machine learning  neural networks  optimization  pattern recognition 

Mean squared error of OLS smaller than Ridge?

5   Cross Validated Asked on 01/15/2021

matlab  mse  regression  ridge regression 

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