Cross Validated
Richi W's user avatar
Richi W's user avatar
Richi W's user avatar
Richi W
  • Member for 11 years, 3 months
  • Last seen more than a week ago
Profile Activity
Stats
3,376
reputation
379k
reached
36
answers
61
questions
Communities
View all
About

Former: risk manager at an asset management company (9y+) Currently: risk model audit at a commercial bank

external lecturer at Vienna University of Technology

Badges
View all badges
4
gold badges
36
silver badges
58
bronze badges
Top tags
View all tags
17
Score
14
Posts
14
Posts %
16
Score
26
Posts
27
Posts %
16
Score
18
Posts
19
Posts %
13
Score
7
Posts
7
Posts %
9
Score
11
Posts
11
Posts %
3
Score
9
Posts
9
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
question
34
How to interpret the dendrogram of a hierarchical cluster analysis
Jan 15, 2014
question
32
Why is xgboost overfitting in my task? Is it fine to accept this overfitting?
Mar 30, 2016
question
17
Choosing the hyperparameters using T-SNE for classification
Nov 10, 2016
question
13
Is the Kolmogorov-Smirnov-Test too strict if the sample size is large?
Mar 16, 2018
question
12
xgboost - what is the difference between the tree booster and the linear booster?
Mar 14, 2016
question
12
Modelling auto-correlated binary time series
Mar 10, 2016
answer
11
$X,Y,Z$ are IID ${\rm Poisson}(\lambda)$. Find the correlation between $X$ and $X+Y+Z$
Feb 1, 2017
question
10
Definition of complexity of a tree in xgboost
Oct 21, 2015
question
9
Daylight saving time in time series modelling (e.g. load data)
Dec 3, 2012
question
9
Additive bias in xgboost (and its correction?)
Apr 6, 2016
Top network posts
View all network posts
222
How to suppress warnings globally in an R Script
41
How to build a factor model?
28
Applications of Fourier theory in trading
24
Discrete returns versus log returns of assets
23
What are reasons not to do factor investing in equity markets?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.