Natural_language_processingusing python.pptx

Natural_language_processingusing python.pptx

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  Lecture No 12 NaturalLanguage Processing (NLP) 10 June 2024 1
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  Outline • NLP • StopWords • Stemming • Lemmatization 10 June 2024 2
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  What is NLP •NLP is an integral part of AI, Computer Science. • It is all about making computers/machines as intelligent as human beings in the understanding of natural-communication language like text, speech and so on. • It comprises two major functionalities “human to machine and machine to human translation”. 10 June 2024 3
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  Applications of NLP •Email filters • Smart assistants • Search results • Predictive text • Language translation • Digital phone calls • Data analysis • Text analytics 10 June 2024 4
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  What Are StopWords? • Stop words are common words that do not carry significant meaning and are often removed from text during preprocessing. • Examples: "is", "the", "and", "in", "on", etc. • Removing stop words helps in reducing noise and focusing on meaningful words in the text. 10 June 2024 5
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  Python Libraries • NumPy •Pandas • Matplotlib • Seaborn • NLTK 10 June 2024 8
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  Art to readthe data • Data preprocessing is a data mining technique which is used to transform the raw data in a useful and efficient format. 10 June 2024 9
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  Stemming • Stemming isthe process of reducing a word to its word stem that affixes to suffixes and prefixes or to the roots of words known as a lemma. 10 June 2024 10
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