data-science

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A efficient quantiles algorithm/data structure that allows samples to be updated as they increment over time?
user_3560110
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8
2
391
quantile data-science statistics java
LightGBM model returning the same score with different parameters
user_134123890
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3
1
730
data-science
Vectorized Custom function not working as expected In pandas
user_122739580
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2
1
817
data-science pandas vectorization python-3.x python
pandas groupby() with custom aggregate function to concatenate columns then rows using pandas
user_137534900
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3
5
1112
data-science pandas python
Python Random Number Generator within a normal distribution with Min and Max values
user_27997070
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2
3
1786
data-science normal-distribution scipy python-3.x python
How to handle modeling categorical variables where categories may change over time?
user_23078040
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2
1
88
data-science statsmodels python
Print out a specific set of rows of a dataset based on conditions
user_136654200
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2
1
49
data-science pandas dataframe python
Why is validation accuracy significantly higher than accuracy of predicted labels on different set drawn from same distribution
user_135422200
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2
0
33
data-science keras tensorflow validation python
cv2.approxPolyDP() , cv2.arcLength() How these works
user_118195860
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13
1
13629
data-science computer-vision image-manipulation opencv python
Implement LOOCV for model selection (Without using the caret package)
user_136880490
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4
1
604
cross-validation data-science statistics r
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