Thomas Boucher

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I am a PhD candidate studying machine learning at the University of Massachusetts Amherst. I work as a research assistant in the Autonomous Learning Laboratory, and my advisors are Sridhar Mahadevan and M. Darby Dyar.

My current research areas include transfer learning, manifold learning, and spectroscopy/chemometrics.

nasa_logo I am a member of the Mars Science Laboratory team, and I work with Prof. Dyar's group on the Mars rover Curiosity. Specifically, I work on the ChemCam instrument, a laser spectrometer (LIBS) that sits on the top of Curiosity. It lases Martian rocks and predicts their chemical compositions. I am working on a few different problems, but the overall goal of my research is to improve the accuracy of the chemical analyses.

ibm's watson logo
I work worked part-time at IBM's CIOLab in Cambridge, MA. I work on the machine learning models within the second generation of the Watson computer system. My work focuses primarily on open-domain question classification. We're not just playing Jeopardy anymore!

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Selected Publications & Code

or a more complete list on my Google Scholar page

  • T. Boucher, C. Carey, S. Mahadevan, and M.D. Dyar (2015)
    Aligning Mixed Manifolds
    29th AAAI Conference, Austin, TX. [PDF] [CODE]
  • T. Boucher, C. Carey, M.D. Dyar, S. Mahadevan, S. Clegg, and R. Wiens (2015)
    Manifold preprocessing for laser-induced breakdown spectroscopy under Mars conditions
    Journal of Chemometrics, 29: 484–491. [Link] [CODE]
  • T. Boucher, C. Carey, S. Giguere, S. Mahadevan, M.D. Dyar, S. Clegg, and R. Wiens (2015)
    Manifold Learning for Regression of Mars Spectra
    5th AI in Space IJCAI Workshop, Buenos Aires, AR. [PDF] [CODE]
  • T. Boucher, M. Ozanne, M. Carmosino, M.D. Dyar, S. Mahadevan, E. Breves, K. Lepore, and S. Clegg (2015)
    A study of machine learning regression methods for major elemental analysis of rocks using laser-induced breakdown spectroscopy
    Spectrochimica Acta Part B: Atomic Spectroscopy, Vol. 107, p. 1-10. [Link]
  • T. Boucher, M.D. Dyar, C. Carey, S. Giguere, S. Mahadevan, M.D. Dyar, S. Clegg, and R. Wiens (2015)
    Calibration transfer of LIBS spectra to correct for Mars-Earth Lab Differences
    46th Lunar and Planetary Science Conference, abs. no. 2773, the Woodlands, TX. [PDF]
  • T. Boucher, M.D. Dyar, C. Carey, S. Mahadevan, A. Mezzacappa, and N. Melikechi (2014)
    Recognizing the contribution of dust to ChemCam spectra of rocks and minerals on Mars
    SciX Conference, abs. no. 377, Reno, NV.
  • Y. Luo, T. Boucher, T. Oral, D. Osofsky and S. Weber (2014)
    A Study on crowdsourcing enterprise question collection and annotation
    International Conference on Language Resources and Evaluation, Reykjavik, IS. [PDF].
  • T. Boucher, M. Dyar, M. Carmosino, S. Mahadevan, S. Clegg and R. Wiens (2013)
    Manifold regression of LIBS data from geological samples for application to ChemCam on Mars
    SciX Conference, Milwaukee, WI. [PDF]
  • T.F. Boucher (2011)
    On Cyclotomic Primality Tests
    M.S. thesis. [ PDF ]


About Me

I spend most of my time doing research and reading, but I also enjoy listening and playing jazz, running, cycling, homebrewing, and backpacking.

Contact Info

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office Computer Science Building
Autonomous Learning Lab, Room 266