User Shayan Shafiq

7 answers

232 votes

273k views

152 bookmarks

Micro Average vs Macro average Performance in a Multiclass classification setting

multiclass-classification evaluation

Dec 29 '16 at 17:39

4 answers

160 votes

101k views

146 bookmarks

When to use One Hot Encoding vs LabelEncoder vs DictVectorizor?

Dec 19 '15 at 19:30

5 answers

60 votes

97k views

31 bookmarks

What is the difference between Gradient Descent and Stochastic Gradient Descent?

machine-learning neural-network deep-learning gradient-descent

Aug 4 '18 at 6:36

4 answers

34 votes

15k views

20 bookmarks

Quick guide into training highly imbalanced data sets

machine-learning classification dataset class-imbalance

Sep 12 '14 at 15:20

3 answers

23 votes

75k views

9 bookmarks

How to predict probabilities in xgboost using R?

machine-learning r predictive-modeling decision-trees xgboost

Sep 8 '15 at 3:14

4 answers

20 votes

28k views

13 bookmarks

Any "rules of thumb" on number of features versus number of instances? (small data sets)

feature-selection model-selection

Apr 24 '16 at 6:55

5 answers

20 votes

17k views

6 bookmarks

In the context of Deep Learning, what is training warmup steps

machine-learning deep-learning training

Jul 19 '19 at 10:10

9 answers

18 votes

3k views

24 bookmarks

How Do I Learn Neural Networks?

machine-learning neural-network

Dec 26 '18 at 6:45

4 answers

16 votes

24k views

4 bookmarks

One hot encoding alternatives for large categorical values

machine-learning dataset dataframe dimensionality-reduction encoding

Nov 14 '17 at 17:20

4 answers

14 votes

22k views

5 bookmarks

Is feature engineering still useful when using XGBoost?

xgboost feature-engineering

Mar 20 '17 at 13:58

3 answers

13 votes

30k views

8 bookmarks

How to create US state choropleth map

data

Jan 4 '16 at 18:35

8 answers

13 votes

1k views

7 bookmarks

Difference between machine learning and artificial intelligence

machine-learning ai theory

May 19 '17 at 7:31

5 answers

12 votes

30k views

7 bookmarks

How to scrape imdb webpage?

data-mining python scraping

Apr 15 '15 at 23:53

2 answers

11 votes

7k views

2 bookmarks

Features of word vectors in Word2Vec

machine-learning word-embeddings word2vec nlp sentiment-analysis

Sep 9 '16 at 19:32

4 answers

11 votes

3k views

10 bookmarks

Books on Reinforcement Learning

machine-learning books reinforcement-learning

Aug 5 '15 at 5:58

3 answers

10 votes

1k views

5 bookmarks

Why is the F-measure preferred for classification tasks?

machine-learning evaluation scoring metric nlg

Aug 12 '18 at 9:32

4 answers

9 votes

1k views

2 bookmarks

Can Boosted Trees predict below the minimum value of the training label?

regression boosting natural-gradient-boosting

Jul 6 '20 at 11:39

2 answers

9 votes

854 views

3 bookmarks

Why continuous features are more important than categorical features in decision tree models?

machine-learning feature-selection decision-trees logistic-regression explainable-ai

Jan 15 '20 at 14:55

5 answers

9 votes

5k views

4 bookmarks

How does deep learning helps in detecting multiple objects in single image?

deep-learning convolutional-neural-network object-recognition

Apr 7 '16 at 19:15

5 answers

8 votes

3k views

4 bookmarks

How can we extract fields from images?

machine-learning python deep-learning keras object-detection

Jan 16 '20 at 12:35

3 answers

8 votes

6k views

8 bookmarks

Splitting train/test sets by an identifier?

machine-learning python dataset data-cleaning randomized-algorithms

May 3 '19 at 22:42

6 answers

7 votes

2k views

3 bookmarks

Why do we need data scientists if there are websites like this?

visualization

Jan 27 at 19:35

2 answers

7 votes

8k views

1 bookmarks

Muti-hot encoding vs Label-Encoding

encoding

Aug 21 '18 at 12:03

3 answers

6 votes

1k views

4 bookmarks

What are bias and variance in machine learning?

machine-learning dataset variance bias

Aug 12 '20 at 8:10

2 answers

6 votes

14k views

3 bookmarks

How to determine feature importance while using xgboost in pipeline?

python scikit-learn xgboost

Dec 30 '16 at 17:29

2 answers

6 votes

9k views

2 bookmarks

Why will the accuracy of a highly unbalanced dataset reduce after oversampling?

classification dataset unsupervised-learning supervised-learning class-imbalance

Feb 23 '18 at 8:51

3 answers

5 votes

7k views

5 bookmarks

When to use Random Forest

python regression random-forest logistic-regression

Jun 29 '19 at 20:28

1 answers

4 votes

1k views

2 bookmarks

Is there a problem of over fitting in my dataset?

feature-selection svm matlab overfitting

Aug 8 '16 at 4:32

2 answers

4 votes

8k views

2 bookmarks

What is a discrimination threshold of binary classifier?

classification graphs classifier roc

Feb 3 '15 at 8:52

2 answers

4 votes

86 views

1 bookmarks

Practical limitations of machine learning

machine-learning machine-learning-model

Mar 5 '20 at 17:04

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