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Griffith University *

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Computer Science

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Nov 24, 2024

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Natural Language Processing and Text Classification In the realm of natural language processing (NLP), classification algorithms are widely used for text classification tasks. Multiclass classification can be employed to categorize news articles, emails, or social media posts into topics like politics, sports, or entertainment. Sentiment analysis is another application where binary classification determines whether a text expresses positive or negative sentiment (Neupane, 2023). A unique challenge in NLP classification is dealing with unstructured data and the nuances of language. Ambiguity, sarcasm, and context are factors that can make classification difficult. Building and maintaining comprehensive labeled datasets is also a labor-intensive process. For example, email providers often use text classification algorithms to filter spam emails into a separate folder, keeping the inbox clean from unwanted messages. These algorithms examine the content and metadata of emails to determine whether they are spam or legitimate communications. Additionally, in the field of news categorization, multiclass classification algorithms are used to classify news articles into various categories such as politics, business, technology, and sports. This helps news organizations organize and present their content to readers more effectively (ProjectPro, 2023). In conclusion, classification algorithms in NLP are essential for various tasks, including spam detection, news categorization, and sentiment analysis. While they offer valuable insights from unstructured text data, they must address challenges related to language nuances, context, and the creation of high-quality labeled datasets. References: Neupane, P. (2023). Understanding Text Classification in NLP with Movie Review Example. Analytics Vidhya . https://www.analyticsvidhya.com/blog/2020/12/understanding-text- classification-in-nlp-with-movie-review-example-example/ ProjectPro. (2023, July 15). Machine Learning NLP text Classification Algorithms and models. ProjectPro . https://www.projectpro.io/article/machine-learning-nlp-text- classification-algorithms-and-models/523
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