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Data Science

Notable Question

 Notable Question
Question with 2,500 views. This badge can be awarded multiple times.
Awarded 5572 times.
Why does reducing the n_estimators in RandomForestClassifier improve accuracy? [closed]
Awarded Sep 29, 2025 at 16:30
XGBoost probability distribution tending towards the extreme
Awarded Sep 28, 2025 at 22:36
Should you care about truncation and padding in an LLM even if it has a very large tokenizer.max_length so that truncation will never happen?
Awarded Sep 25, 2025 at 18:41
Minimum numbers of support vectors
Awarded Sep 25, 2025 at 9:45
Why does putting a 1/2 in front of the squared error make the math easier?
Awarded Sep 18, 2025 at 20:38
Confused about output shape of the transformer
Awarded Sep 18, 2025 at 12:48
Why would batch normalization allows us to use higher learning rate in the neural network?
Awarded Sep 18, 2025 at 3:21
Why is the F-measure preferred for classification tasks?
Awarded Sep 16, 2025 at 14:57
Combining Machine Learning classifier with NLTK Vader for Sentiment Analysis
Awarded Sep 16, 2025 at 13:57
Keras Attention Guided CNN problem
Awarded Sep 15, 2025 at 14:55
Why did Tufte call this a "superbly produced duck"?
Awarded Sep 15, 2025 at 1:33
XGBoost multiclassification interpreting predicted probabilities
Awarded Sep 10, 2025 at 13:00
How to correctly create a PyTorch Tensor from a Pandas DataFrame?
Awarded Sep 9, 2025 at 16:08
Does BERT need supervised data only when fine-tuning?
Awarded Sep 9, 2025 at 10:01
Is class imbalance really a problem in machine learning?
Awarded Sep 5, 2025 at 11:34
Where can I find a social network image dataset?
Awarded Sep 4, 2025 at 23:57
Set column names to column value in pandas forloop, add prefix to column names
Awarded Sep 4, 2025 at 10:37
Derivation of Ward's formula for agglomerative clustering
Awarded Sep 1, 2025 at 6:36
What does the output of an encoder in encoder-decoder model represent?
Awarded Aug 31, 2025 at 22:52
How to automate ANOVA in Python
Awarded Aug 29, 2025 at 8:11
Is it better to optimize hyperparameters or run multiple epochs?
Awarded Aug 27, 2025 at 10:07
Why is Local Outlier Factor classified as Unsupervised if it requires training data with no outliers?
Awarded Aug 26, 2025 at 7:53
Is CUDA 13 a thing (or am I misinterpreting something)?
Awarded Aug 21, 2025 at 23:57
Unbalanced training data for different classes
Awarded Aug 20, 2025 at 19:05
How to do train-test split for multi-class classification
Awarded Aug 16, 2025 at 10:32
n-gram Model - Why Smoothing?
Awarded Aug 15, 2025 at 3:16
Keras model.predict giving different shape from training label array
Awarded Aug 14, 2025 at 19:23
What is C in sklearn Logistic Regression?
Awarded Aug 13, 2025 at 16:34
How to deal with overestimation of small values and underestimation of high values in XGBoost?
Awarded Aug 13, 2025 at 14:06
What is the reasonable max number of features for LSTM?
Awarded Aug 13, 2025 at 10:11
How to identify the appropriate predictors in regression model
Awarded Aug 13, 2025 at 8:53
How do I change the location of Google BigQuery
Awarded Aug 11, 2025 at 10:21
How is weight matrix calculated in a neural network?
Awarded Aug 11, 2025 at 9:10
Clustering for Sparse Data Matrix of high dimension
Awarded Aug 7, 2025 at 16:30
How to train or approach the image datasets with different resolution in Deep Learning
Awarded Aug 7, 2025 at 9:36
Finding out the scale when using MinMaxScaler()
Awarded Aug 1, 2025 at 23:54
Shaping columns (and column headers) into multi-index rows using pivot/pivot_table
Awarded Jul 31, 2025 at 4:36
Parsing Python List values from column in pandas data frame??? Data cleaning help me please
Awarded Jul 31, 2025 at 1:06
Binary Classification with Very Small Dataset (<40 samples)
Awarded Jul 29, 2025 at 20:39
Adding time as a feature with xgboost/random forests
Awarded Jul 29, 2025 at 6:47
Can we automatically chose k value in k-means algorithm?
Awarded Jul 28, 2025 at 16:27
How do stacked CNN layers work?
Awarded Jul 27, 2025 at 23:46
How is openAI embedding models trained?
Awarded Jul 26, 2025 at 11:32
Why do we calculate partial derivative of Error w.r.t output of Neural Network during backpropagation?
Awarded Jul 20, 2025 at 11:00
What's the best way to use binned data in a tree-based model?
Awarded Jul 18, 2025 at 21:53
Optimizing parameters for a closed (black-box) system
Awarded Jul 12, 2025 at 18:11
Number of rows vs. number of variables
Awarded Jul 10, 2025 at 14:28
Splitting into multiple heads -- multihead self attention
Awarded Jul 9, 2025 at 13:47
Which Machine Learning algorithm should I use for a sports prediction study?
Awarded Jul 7, 2025 at 20:31
TimeDistributed with different input / output sequence length
Awarded Jul 6, 2025 at 11:38
How to interpret .get_booster().get_score(importance_type='weight') for XGBRegressor()
Awarded Jul 2, 2025 at 8:56
Should your learning rate get smaller as your neural net gets larger?
Awarded Jul 1, 2025 at 13:47
Why it is recommended to use T SNE to reduce to 2-3 dims and not higher dim?
Awarded Jun 29, 2025 at 12:36
Is there a method that is opposite of dimensionality reduction?
Awarded Jun 26, 2025 at 8:07
What are the steps and correct order of the operations in Machine Learning? [from Getting data to optimising models]
Awarded Jun 26, 2025 at 6:02
Why is orthogonal weights initialization so important for PPO?
Awarded Jun 24, 2025 at 13:13
Handling categorical missing values ML
Awarded Jun 19, 2025 at 10:52
What should you do with NaN Values?
Awarded Jun 19, 2025 at 10:52
How to build a database of image data for machine learning?
Awarded Jun 14, 2025 at 4:32
Scaling the target variables for Neural Networks in Regression Problem
Awarded Jun 13, 2025 at 13:22
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