Long-Context Modeling via GSS-Transformer Hybrid Architecture with Learnable Mixing
Researchers have introduced a Parallel Hybrid Architecture (PHA) that combines Gated State Spaces (GSS), Grouped Query Attention (GQA), and Feed-Forward Networks (FFNs) to improve long-context language modeling. This architecture runs these components in parallel, allowing each to specialize in different aspects of sequence modeling, unlike previous methods that forced SSMs to approximate attention or serialized the two paradigms. PHA demonstrates competitive perplexity with standard Transformers while offering significantly better efficiency in terms of throughput and memory usage, particularly for long contexts. AI
IMPACT This hybrid architecture offers a path to more efficient long-context language modeling, potentially reducing computational costs and memory requirements for advanced NLP tasks.