ZeroDivisionError in loss function calculation
A ZeroDivisionError occurs when Python tries to divide a number by zero, which is mathematically undefined. In machine learning, this error can arise during the calculation of loss functions, such….
Category: Python
Data leakage due to incorrect train-test split
Data leakage occurs when information from outside the training dataset is used to create the model, leading to overly optimistic performance during training but poor generalization on new data. One….
ImportError: cannot import ‘train_test_split’
The error “ImportError: cannot import ‘train_test_split’” usually occurs when trying to import train_test_split from scikit-learn but there is an issue with the installation or import path. Step 1: Check If….
Overfitting due to high model complexity
Overfitting occurs when a machine learning model learns patterns from the training data too well, including noise and random fluctuations. This leads to poor generalization on new, unseen data. High….
TypeError: expected sequence, got ndarray
The error “TypeError: expected sequence, got ndarray” occurs when a function expects a list, tuple, or other sequence-like data structure but receives a NumPy ndarray. Possible Causes and Fixes: 1…..
Not normalizing data before training ML models
Data normalization is a crucial preprocessing step in machine learning. If skipped, it can negatively affect model performance, particularly for algorithms that rely on feature scaling. In this guide, I….
Memory overflow when loading large datasets
Dealing with large datasets in Python can be challenging, especially when memory overflow occurs. This issue happens when the dataset exceeds the available RAM, causing the system to slow down….
KeyError: column not found in DataFrame
In Pandas, a KeyError: column not found in DataFrame occurs when you try to access a column that does not exist in a DataFrame. This error commonly happens due to:….
IndexError: Tensor index out of range
When working with tensors in frameworks like PyTorch or TensorFlow, you might encounter the error: IndexError: index out of range in self This error happens when you try to access….
ValueError: Shapes not aligned for matrix multiplication
When performing matrix multiplication in Python using numpy.dot() or the @ operator, you might encounter the error: ValueError: shapes (m,n) and (p,q) not aligned for matrix multiplication This error occurs….