Here’re the ten simplified meanings of Machine Learning Key Terms. Frankly, you always need these terms in memory. It’s no matter if you’re a working professional or Job searcher. ML solely a framework to solve real-life problems. Moreover, it provides insights. You may also like: Quiz on Machine Learning.

Machine learning key terms

Word	Definition
1. instance or example	A single object, observation, transaction, or record.
2. target or label	The numerical or categorical (label) attribute of interest. This is the variable to be predicted for each new instance.
3. features	The input attributes that are used to predict the target. These also may be numerical or categorical.
4. model	A mathematical object describing the relationship between the features and the target.
5. training data	The set of instances with a known target to be used to fit an ML model.
6. recall	Using a model to predict a target or label.
7. supervised machine learning	Machine learning in which, given examples for which the output value is known, the training process infers a function that relates input values to the output.
8. unsupervised machine learning	Machine-learning techniques that don’t rely on labeled examples, but rather try to find hidden structure in unlabeled data.
9. ML workflow	The stages in the ML process: data preparation, model building, evaluation, optimization, and prediction.
10. online machine learning	A form of machine learning in which predictions are made, and the model is updated, for each new example.

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