Hugging Face Daily PapersKeyu Wang, Yangyi Huang, Jiale Kang1 min readpaperadvanced
DepthBench: Measuring How Residual Connections Enable More Computational Depth
Summary
DepthBench is a new benchmark designed to measure how effectively Transformer architectures utilize increased computational depth. The study found that residual connection designs, particularly Highway Connections (HC) and Full AttnRes, are crucial for translating architectural depth into effective computational gains, unlike standard normalization methods.
- Deeper Transformers don't always yield more effective computation; the benefit is strongly architecture-dependent.
- Standard Pre-LN and most norm/scaling variants show little benefit or degrade performance in deep, narrow models.
- Highway Connections (HC) and Full AttnRes consistently improve performance with increased depth, even at extreme deep shapes.
- Gains from HC and Full AttnRes extend beyond pre-training loss to improved domain-specific performance.
This paper provides critical insights for ML engineers and researchers designing large Transformer models, showing how to effectively scale models by depth rather than just width.
8/10

