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Top Questions
58
votes
Practical hyperparameter optimization: Random vs. grid search
machine-learning
hyperparameter
parameter-optimization
asked Jul 8, 2015 at 14:25
stats.stackexchange.com
36
votes
Shuffling non-zero elements of each row in an array - Python / NumPy
python
numpy
vectorization
shuffle
asked Aug 18, 2017 at 20:57
stackoverflow.com
36
votes
Coordinate vs. gradient descent
optimization
gradient-descent
asked Apr 14, 2015 at 14:38
stats.stackexchange.com
29
votes
Applying filter in scipy.signal: Use lfilter or filtfilt?
filters
python
infinite-impulse-response
asked Nov 10, 2014 at 15:55
dsp.stackexchange.com
23
votes
Why are second-order derivatives useful in convex optimization?
optimization
asked Apr 8, 2015 at 13:04
stats.stackexchange.com
20
votes
Is there a way to define the required sbt version in build.sbt?
scala
sbt
asked Feb 10, 2015 at 10:12
stackoverflow.com
17
votes
Stupid Backoff implementation clarification
nlp
smoothing
asked May 5, 2013 at 9:36
stackoverflow.com
16
votes
R - Parallelizing multiple model learning (with dplyr and purrr)
r
parallel-processing
dplyr
purrr
asked Jul 7, 2016 at 17:44
stackoverflow.com
10
votes
Firefox - Websites with custom fonts not displaying
firefox
fonts
asked Nov 16, 2017 at 10:00
askubuntu.com
8
votes
Why do we take the average for regression Random Forest predictions?
regression
random-forest
ensemble
asked Oct 5, 2017 at 11:00
stats.stackexchange.com
1
2
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Top Answers
49
Fastest way to replace NAs in a large data.table
stackoverflow.com
33
Read a small random sample from a big CSV file into a Python data frame
stackoverflow.com
17
sparse.model.matrix loses rows in R
stackoverflow.com
15
LDA vs word2vec
stats.stackexchange.com
13
R - Parallelizing multiple model learning (with dplyr and purrr)
stackoverflow.com
6
Getting Commit ID in CodePipeline
stackoverflow.com
6
DRAM Frequency showing 800 instead of 1600
superuser.com
5
ggplot2: Add points to geom_line
stackoverflow.com
5
How to prevent overfitting in Gaussian Process
stats.stackexchange.com
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