| S.No. | Topic | Level | Meaning |
|---|---|---|---|
| 1 | Tokenization | 🤍 | Beginner |
| 2 | Stemming | 🤍 | Beginner |
| 3 | Lemmatization | 🤍 | Beginner |
| 4 | Bagofwords | 💛 | Novice |
| 5 | TF-IDF | 💛 | Novice |
| 6 | Text-processing | 🧡 | Learner |
| 7 | Word2vec | 🧡 | Learner |
| 8 | RNN | 💚 | Intermediate |
| 9 | LSTM | 💚 | Intermediate |
| 10 | GRU | 💚 | Intermediate |
| 11 | Word Embedding | 💙 | Pro |
| 12 | Bidirectional LSTM | 💙 | Pro |
| 13 | Encoder and Decoder | 💙 | Pro |
| 14 | Attention Model | ❤ | Master |
| 15 | Transformers | ❤ | Master |
| 16 | BERT | 🖤 | Legend |