Enhancing tf-idf Technique

[StephanieNhiLe]

Modify the tf-idf technique to consider alternative words with similar meanings.

• For instance, expand the vocabulary to include synonyms and related terms to capture a broader range of relevant terms in addition to the main keywords. This improvement will help in extracting more comprehensive insights from the dataset.
• For example, "hunger" is similar to "starving" could also be considered to capture a broader range of relevant terms.