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In this video, Amun, a data scientist, discusses cleaning techniques for natural language processing (NLP). Highlighting that data cleaning is a fundamental step in the data science pipeline, he points out that while numerical data cleaning involves missing value and outlier treatment, text data requires different approaches. The video categorizes text cleaning techniques into two main buckets: basic cleaning and advanced cleaning. Amun emphasizes understanding basic cleaning methods, which are essential before considering advanced techniques. The tutorial aims to equip viewers with the necessary knowledge to effectively clean text data for NLP applications.