What is Observation ML?
In machine learning, observations are the instances being analyzed, features are the explanatory factors grouped into a feature vector, and classes are the categories to be predicted.
Machine Learning Properties and Applications
Machine learning accelerates processes, enhances analytical capabilities, and improves accuracy. It finds applications in various domains such as automating banking tasks, managing expenses, and making financial forecasts.
The Purpose of Machine Learning
Machine learning, a branch of AI, enables computers to learn and adapt without explicit programming. This involves creating systems that can access and learn from data independently.
Types of Machine Learning
- Supervised Learning - Requires training with labeled data.
- Unsupervised Learning - Identifies patterns without labeled data.
- Reinforcement Learning - Learns through a trial-and-error method.
Instance-Based Learning
Instance-based learning involves memorizing and using a dataset to classify new instances via similarity metrics. This method is sometimes called lazy learning or memory-based learning. The complexity of this algorithm increases with the amount of data, as it compares new cases to stored examples to determine similarity and classification.
Framework of Instance-Based Learning
- The Function of Similarity: Evaluates similarity between a test instance and stored examples.
- Concept Description Updater: Updates the classification framework based on similarity results and performance tracking.
Unlike other methods, instance-based algorithms avoid storing explicit generalizations, allowing them to adapt to new data flexibly.
Advantages and Challenges
Perks: This approach allows for quick adaptations to new data and can focus on smaller, localized models.
Weaknesses: High classification costs and significant memory requirements pose challenges, as fresh models are needed for each query.
Observational learning continues to evolve, providing robust solutions for complex AI tasks.
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