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IEEE/ICACT20230048 Slide.15        [Big Slide]       [YouTube]	Oral Presentation
	TFIDF is a commonly used word weighting technique for information retrieval and word mining. The step to calculate TF-IDF score is as follows: First, Term Frequency (TF) calculates the number of times a word appears in a single Payload. Second, Inverse Document Frequency (IDF) estimates the number of times the word appears in all Payloads. Finally, the two are multiplied to obtain a weighted score.

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