2 articles tagged with #chemical-language-models. AI-curated summaries with sentiment analysis and key takeaways from 50+ sources.
Researchers propose uncertainty-aware reinforcement learning methods for chemical language models that account for prediction confidence when optimizing molecular properties. By incorporating predictive uncertainty into the optimization process, the approach improves hit discovery rates from 50% to 75% while maintaining molecular quality scores.
Researchers used sparse autoencoders to mechanistically analyze MolFormer, a chemical language model, revealing that it learns meaningful molecular semantics beyond surface-level syntax. Early layers track molecular grammar through position-encoding, while deeper layers capture pharmacologically relevant atomic features, with non-canonical SMILES notations causing more disruption than invalid ones due to cascading positional errors.
