Noise
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See: Noisy Data, Measurement Error, Classification Error, Missing Attibute Value.
References
2017
- (Sammut & Webb, 2017) ⇒ Claude Sammut, and Geoffrey I. Webb. (2017). “Noise”. In: (Sammut & Webb, 2017) DOI:10.1007/978-1-4899-7687-1_957.
- QUOTE: The training data for a learning algorithm is said to be noisy if the data contain errors. Errors can be of two types:
- A measurement error occurs when some attribute values are incorrect or inaccurate. Note that measurement of physical properties by continuous values is always subject to some error.
- In supervised learning, classification error means that a training example has an incorrect class label.
- QUOTE: The training data for a learning algorithm is said to be noisy if the data contain errors. Errors can be of two types:
- In addition to errors, training examples may have missing attribute values. That is, the values of some attribute values are not recorded.
Noisy data can cause learning algorithms to fail to converge to a concept description or to build a concept description that has poor classification accuracy on unseen examples. This is often due to overfitting.
- In addition to errors, training examples may have missing attribute values. That is, the values of some attribute values are not recorded.