什么是 TF-IDF 向量化？

What is TF-IDF vectorization?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: NLP, TF-IDF, Feature Engineering

参考答案摘要

TF-IDF converts text into numeric features by weighting terms by their frequency in a document (TF) and rarity across documents (IDF). It is widely used for text mining and information retrieval.

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