KwickClips Artificial Intelligence · 38 sec · free
What is the first step?
Short answer. Make the dictionary.
What is a document vector?
The row of word counts for one document.
Bag of Words
| Doc | Vector |
|---|---|
| Riya plays | 1 1 0 |
| Aman plays | 0 1 1 |
| Riya, Aman | 1 0 1 |
Remember
| Make the dictionary |
| Count words per document |
How do three sentences become numbers? Here are the three rows. The dictionary is riya, plays, aman. Count each word per document. Each row of counts is a document vector. Two steps. Make the dictionary. Count words per document.
This clip is from the full lesson: Text Processing: Normalisation, Tokenisation, Bag of Words and TF-IDF — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417), CBSE Class 10 Artificial Intelligence (417)
More KwickClips from this lesson
What comes after sentence segmentation?46 sec
What is the stem of 'studies'?42 sec
Why does 'the' score zero?42 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.