Architecture,Model 1 baseline,Model 2,Model 3,Model 4,Model 5
1. Embedding Layer,✓,✓,✓,✓,✓
2. LSTM Layer (150 units),✓,✓ (150 units),Bidirectional (150 units),"Bidirectional (250 units, return_sequences=True)",
3. Dropout (0.1),✓,✓,✓,✓,✓
4. LSTM Layer (100 units),,✓ (100 units),,Bidirectional (150 units),
5. Dropout (0.1) - 2nd occurrence,,✓,,✓,
6. GRU Layer (150 units),,,,,✓ (150 units)
7. Dense Layer,✓,✓,✓,✓,✓