👉 In the context of computer science, a "chaff" is an object or value that is not useful. A chaff in this context refers to an irrelevant data point or feature that can be removed from a dataset without significant impact on the overall performance or accuracy of the model.
For example:
```python
import numpy as np
from sklearn.datasets import load_breast_cancer
cancer = load_breast_cancer()
X, y = cancer.data, cancer.target
``
chaffs