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Non-autoregressive modeling offers a promising alternative to the sequential decoding paradigm that dominates reaction and retrosynthesis prediction. By generating the reaction outcome or precursor set in a single pass rather than token by token, such approaches can avoid the exposure bias and error accumulation inherent to autoregressive decoders, while permitting parallel prediction of multiple reaction centers. Realizing these benefits, however, requires architectures that can capture the joint dependencies among simultaneously predicted outputs, which remains an open challenge for the field.
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Metro: Memory-Enhanced Transformer for Retrosynthetic Planning via Reaction Tree
These approaches have the following limitations: 1) the training dataset of single-step reactions limits the understanding of the transformation of organic molecules as a sequence of chaining chemical reactions. 2) past works use single-step retrosynthesis models, which neglect the context informati…
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These approaches have the following limitations: 1) the training dataset of single-step reactions limits the understanding of the transformation of organic molecules as a sequence of chaining chemical reactions. 2) past works use single-step retrosynthesis models, which neglect the context information in the reaction tree. 3) the test set is too small to comprehensively evaluate the performance. 4) the evaluation unit of existing benchmark is the reaction route which is one path from the root node to the leaf node in the reaction tree.