LSM-MS2: A Foundation Model Bridging Spectral Identification and Biological Interpretation
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arXiv
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| Autori principali: | , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866914124526518272 |
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| author | Asher, Gabriel Shah, Devesh Caudy, Amy A. Ferro, Luke Amar, Lea Costa, Ana S. H. Patton, Thomas O'Connor, Niall Campbell, Jennifer M. Geremia, Jack |
| author_facet | Asher, Gabriel Shah, Devesh Caudy, Amy A. Ferro, Luke Amar, Lea Costa, Ana S. H. Patton, Thomas O'Connor, Niall Campbell, Jennifer M. Geremia, Jack |
| contents | A vast majority of mass spectrometry data remains uncharacterized, leaving much of its biological and chemical information untapped. Recent advances in machine learning have begun to address this gap, particularly for tasks such as spectral identification in tandem mass spectrometry data. Here, we present the latest generation of LSM-MS2, a large-scale deep learning foundation model trained on millions of spectra to learn a semantic chemical space. LSM-MS2 achieves state-of-the-art performance in spectral identification, improving on existing methods by 30% in accuracy of identifying challenging isomeric compounds, yielding 42% more correct identifications in complex biological samples, and maintaining robustness under low-concentration conditions. Furthermore, LSM-MS2 produces rich spectral embeddings that enable direct biological interpretation from minimal downstream data, successfully differentiating disease states and predicting clinical outcomes across diverse translational applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_26715 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | LSM-MS2: A Foundation Model Bridging Spectral Identification and Biological Interpretation Asher, Gabriel Shah, Devesh Caudy, Amy A. Ferro, Luke Amar, Lea Costa, Ana S. H. Patton, Thomas O'Connor, Niall Campbell, Jennifer M. Geremia, Jack Machine Learning A vast majority of mass spectrometry data remains uncharacterized, leaving much of its biological and chemical information untapped. Recent advances in machine learning have begun to address this gap, particularly for tasks such as spectral identification in tandem mass spectrometry data. Here, we present the latest generation of LSM-MS2, a large-scale deep learning foundation model trained on millions of spectra to learn a semantic chemical space. LSM-MS2 achieves state-of-the-art performance in spectral identification, improving on existing methods by 30% in accuracy of identifying challenging isomeric compounds, yielding 42% more correct identifications in complex biological samples, and maintaining robustness under low-concentration conditions. Furthermore, LSM-MS2 produces rich spectral embeddings that enable direct biological interpretation from minimal downstream data, successfully differentiating disease states and predicting clinical outcomes across diverse translational applications. |
| title | LSM-MS2: A Foundation Model Bridging Spectral Identification and Biological Interpretation |
| topic | Machine Learning |
| url | https://arxiv.org/abs/2510.26715 |