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Top Questions

11 votes
3 answers
1k views

Why use cosine similarity instead of scaling the vectors when calculating the similarity of vectors?

6 votes
3 answers
786 views

Is Pearson correlation a good loss function?

4 votes
4 answers
769 views

Python (S)ARIMA models completely wrong

5 votes
2 answers
609 views

Why using a partial derivative for the loss function?

5 votes
3 answers
873 views

How to understand data (What questions do you ask yourself)?

5 votes
2 answers
525 views

How to build a personalized recommendation system using real life scenario data?

2 votes
2 answers
280 views

How to calculate accuracy of an imbalanced dataset

3 votes
3 answers
438 views

How to train deep learning model on high dimensional dataset with limited memory and disk

4 votes
1 answer
415 views

How to Combat Data Drift

2 votes
1 answer
180 views

Is there a way to map words to their synonyms in tfidf?

2 votes
1 answer
333 views

URGENT: who knows how many matrix combinations this is

3 votes
2 answers
91 views

Imputing time data for an event that hasn't occurred yet

3 votes
2 answers
73 views

Can we visualize a feature space with 4 or more dimensions?

3 votes
1 answer
127 views

SGD performing better than Adam in Random minority oversampling, I don't know what is the reason. Help

2 votes
2 answers
94 views

Stacking: Use predictions of train or test to create features for level 1 classifier

3 votes
2 answers
79 views

Precision, recall and importance of them in the imbalance problem

2 votes
1 answer
61 views

Can you do the math for this simple treeSHAP example (decisionTree)?

2 votes
1 answer
71 views

Predict actual result after model trained with MinMaxScaler LinearRegression

4 votes
2 answers
71 views

Evaluation of a model of imbalanced data

0 votes
2 answers
50 views

Is R programming a good way to start with Data Science? [closed]

2 votes
1 answer
56 views

Why does prediction calibration on a resampling mode does not meet the expectation?

2 votes
1 answer
67 views

Parallel Data preprocessing

3 votes
1 answer
52 views

Time series data for prophet model

1 vote
3 answers
82 views

How to learn steep functions using neural network?

1 vote
1 answer
48 views

Combining sklearn pipelines with different output shape

2 votes
2 answers
47 views

Is there a machine learning tool that works directly on databases?

0 votes
2 answers
76 views

How to check the impact of predictive Model

2 votes
2 answers
35 views

Finding useful noun 2-grams?

0 votes
1 answer
44 views

How can I say if I have a class imbalance issue in my data?

3 votes
1 answer
56 views

What problems could arise from imputing missing values with impossible values?

3 votes
1 answer
91 views

Taxonomy of train-test split approaches

2 votes
1 answer
42 views

How to remove noise from signals?

1 vote
1 answer
53 views

Online Learning/Continual Learning for tree-based Algorithms

3 votes
1 answer
32 views

Logistic Regression using Logisticregression() class

0 votes
1 answer
52 views

How to create custom action space in openai.gym

1 vote
2 answers
39 views

Finding max profit from buying and selling items (between an array of prices for a set of specific days) with limited storage capacity

0 votes
1 answer
49 views

One word changes everything NLP

0 votes
1 answer
48 views

Classification on severe Class Imbalance high dimensional data

1 vote
2 answers
36 views

How can I create new dataset maintaining the same trend from an existing dataset?

1 vote
2 answers
44 views

How do I find out which metadata is affecting/influencing the classification model?

1 vote
1 answer
51 views

Model from an aggregate

2 votes
0 answers
63 views

Feature selection and model performance

0 votes
1 answer
63 views

I am facing the error of DecisionTreeregressor object has no attribute n_features

0 votes
1 answer
49 views

Binary classification performance difference between 0 and 1 class

1 vote
2 answers
23 views

How can I do mathematical operations to two columns of a CSV file and save the result in a new CSV file?

1 vote
2 answers
37 views

Inverted ROC curve

-1 votes
1 answer
36 views

Sklearn vs Pytorch vs Tensorflow vs Keras

1 vote
2 answers
36 views

Enocding of months for machine learning project


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