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• W2901865147 abstract "Chemical structure elucidation is a serious bottleneck in analytical chemistry today. We address the problem of identifying an unknown chemical threat given its mass spectrum and its chemical formula, a task which might take well trained chemists several days to complete. Given a chemical formula, there could be over a million possible candidate structures. We take a data driven approach to rank these structures by using neural networks to predict the presence of substructures given the mass spectrum, and matching these substructures to the candidate structures. Empirically, we evaluate our approach on a data set of chemical agents built for unknown chemical threat identification. We show that our substructure classifiers can attain over 90% micro F1-score, and we can find the correct structure among the top 20 candidates in 88% and 71% of test cases for two compound classes." @default.
• W2901865147 created "2018-11-29" @default.
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• W2901865147 date "2018-11-17" @default.
• W2901865147 modified "2023-10-16" @default.
• W2901865147 title "Chemical Structure Elucidation from Mass Spectrometry by Matching Substructures" @default.
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• W2901865147 doi "https://doi.org/10.48550/arxiv.1811.07886" @default.
• W2901865147 hasPublicationYear "2018" @default.
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