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A company wants to automatically label customer reviews as positive, negative, or neutral. They already have 10,000 reviews with known sentiment labels.
Which type of learning algorithm is most appropriate?
A
Unsupervised Learning
B
Supervised Learning
C
Reinforcement Learning
D
Self-supervised Learning
Explanation:
This is a supervised learning problem because:
Labeled Data Available: The company has 10,000 reviews with known sentiment labels (positive, negative, or neutral).
Classification Task: The goal is to classify new reviews into predefined categories.
Training with Labels: Supervised learning algorithms learn from labeled examples to make predictions on new, unseen data.
Why other options are incorrect:
A) Unsupervised Learning: Used when there are no labels, and the algorithm tries to find patterns or groupings in the data.
C) Reinforcement Learning: Involves an agent learning through trial and error by receiving rewards or penalties for actions in an environment.
D) Self-supervised Learning: A subset of unsupervised learning where the data itself provides supervision, typically by creating pseudo-labels from the data structure.
Key Takeaway: When you have labeled data and want to predict categories or values for new data, supervised learning is the appropriate approach.