Transformer Architecture TechnicalDeep Dive
Understanding the attention mechanism and transformer layers that power our NLP capabilities
Tokenization
WordPiece tokenization with vocabulary of 30,522 subword units
- WordPiece algorithm implementation
- UNK token handling for OOV words
- Special tokens: [CLS], [SEP], [MASK]
- Maximum sequence length: 512 tokens
Embedding Layer
768-dimensional embeddings with positional encoding
- Token embeddings + position embeddings
- Segment embeddings for sentence pairs
- Layer normalization + dropout (0.1)
- Sinusoidal positional encoding
Multi-Head Attention
12 attention heads with scaled dot-product attention mechanism
- Query-Key-Value attention computation
- Multi-head parallel processing
- Attention dropout (0.1) for regularization
- Residual connections + layer norm
Feed Forward Networks
Position-wise feed-forward networks with GELU activation
- Two-layer MLP: 768 → 3072 → 768
- GELU activation function
- Residual connections
- Stochastic depth regularization
NLP Challenges &Breakthroughs
Solving the fundamental challenges in understanding human language
Context Understanding
Bidirectional attention with masked language modeling pre-training
Long-range Dependencies
Self-attention mechanism with global receptive field
Computational Efficiency
Distillation and quantization techniques
Domain Adaptation
Fine-tuning on domain-specific datasets
Training Methodology Pre-training & Fine-tuningPre-training & Fine-tuning
Masked Language Modeling
Bidirectional context prediction pre-training
- 15% token masking
- Bidirectional prediction
- Next sentence prediction
- Trained on 570GB text
Task-Specific Fine-tuning
Supervised learning on labeled datasets
- SST-2 sentiment dataset
- Sequence classification
- Learning rate: 2e-5
- Early stopping patience=3
Knowledge Distillation
Model compression for production deployment
- Teacher-student architecture
- Soft target matching
- Temperature scaling
- 60% size reduction
Transform Text Data Into Actionable Intelligence
Deploy our multilingual NLP models to extract insights from customer feedback, automate content moderation, or power conversational AI experiences.