Researchers have developed a new framework called Higher-order Grammar Representation (HGR) to improve molecular learning models. HGR addresses limitations in existing sequential and graph formalisms by explicitly encoding higher-order topology, such as ring systems, in a computationally efficient manner. The framework serializes molecular topology into a compact sequence of production rules, making it compatible with standard sequence models. To evaluate HGR, a new benchmark called RingDiv was created, featuring 1.18 million molecules and a ring diversity index (RDI) to measure ring-system coverage. Models utilizing HGR demonstrated superior performance in molecular generation, achieving 100% validity and leading distributional alignment, and excelled in representation learning, outperforming existing baselines on MoleculeNet benchmarks. AI
IMPACT This new framework could significantly improve the efficiency and accuracy of AI models used in chemical research and drug discovery.
RANK_REASON The cluster contains an academic paper detailing a new computational framework and benchmark for molecular learning models. [lever_c_demoted from research: ic=1 ai=1.0]
- Generative and Foundation Models in Chemistry
- HGR-based models
- HGR-FM
- Higher-order Grammar Representation
- Higher-order Molecular Grammars
- MoleculeNet
- RingDiv
- RingDiv300k
- ring diversity index
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