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Bibliographic Details
Main Authors: Neo, Neng Kai Nigel, Jing, Lim, Preston, Ngoui Yong Zhau, Serene, Koh Xue Ting, Shen, Bingquan
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2508.04180
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Table of Contents:
  • A common approach to the de novo molecular generation problem from mass spectra involves a two-stage pipeline: (1) encoding mass spectra into molecular fingerprints, followed by (2) decoding these fingerprints into molecular structures. In our work, we adopt MIST (Goldman et. al., 2023) as the encoder and MolForge (Ucak et. al., 2023) as the decoder, leveraging additional training data to enhance performance. We also threshold the probabilities of each fingerprint bit to focus on the presence of substructures. This results in a tenfold improvement over previous state-of-the-art methods, generating top-1 31% / top-10 40% of molecular structures correctly from mass spectra in MassSpecGym (Bushuiev et. al., 2024). We position this as a strong baseline for future research in de novo molecule elucidation from mass spectra.