KwickClips Artificial Intelligence · 42 sec · free
Can a model read the word Delhi?
Short answer. No. It must be encoded as numbers.
What range does normalising use?
0 to 1.
Two fixes
| Normalise: scale numbers to 0-1 |
| Encode: turn text into numbers |
| One-hot: Delhi = 1 0 0 |
Remember
| Same scale for numbers |
| Numbers for text |
Models only read numbers. So what about words? Two fixes help. Normalising scales numbers from zero to one. Encoding turns text into numbers. One hot writes Delhi as one, zero, zero. Same scale for numbers. Numbers for text.
This clip is from the full lesson: Data Pre-processing and Data Interpretation — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Artificial Intelligence (417), CBSE Class 11 Artificial Intelligence (843), CBSE Class 11 Artificial Intelligence (843)
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