This document discusses machine learning. It defines machine learning as designing algorithms that extract valuable information from data. It states that machine learning is useful for problems where existing solutions require fine-tuning or many rules, complex problems traditional methods can't solve, and environments that are changing. Examples of machine learning tasks are given, such as image classification using convolutional neural networks, detecting tumors using convolutional neural networks, automatically classifying news articles using natural language processing, and creating chatbots or personal assistants using natural language processing and question-answering modules.
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