Predicting human olfactory perception from chemical features of odor molecules

  • Andreas Keller
  • , Richard C. Gerkin
  • , Yuanfang Guan
  • , Amit Dhurandhar
  • , Gabor Turu
  • , Bence Szalai
  • , Joel D. Mainland
  • , Yusuke Ihara
  • , Chung Wen Yu
  • , Russ Wolfinger
  • , Celine Vens
  • , Leander Schietgat
  • , Kurt De Grave
  • , Raquel Norel
  • , Gustavo Stolovitzky
  • , Guillermo A. Cecchi
  • , Leslie B. Vosshall
  • , Pablo Meyer
  • , A. P. Bhondekar
  • , P. C. Boutros
  • Y. C. Chang, C. Y. Chen, B. W. Cherng, A. Dimitriev, A. Dolenc, A. O. Falcao, A. K. Golińska, M. Y. Hong, P. H. Hsieh, B. F. Huang, L. Hunyady, R. Kaur, M. D. Kazanov, R. Kumar, W. Lesiński, X. Lin, A. Matteson, Y. J. Oyang, B. Panwar, R. Piliszek, A. Polewko-Klim, G. P.S. Raghava, W. R. Rudnicki, L. Saiz, R. X. Sun, M. Toplak, Y. A. Tung, P. Us, P. Várnai, JMG Vilar, M. Xie, D. Yao, M. Zitnik, B. Zupan

Research output: Contribution to journalArticlepeer-review

250 Scopus citations

Abstract

It is still not possible to predict whether a given molecule will have a perceived odor or what olfactory percept it will produce.We therefore organized the crowd-sourced DREAM Olfaction Prediction Challenge. Using a large olfactory psychophysical data set, teams developed machine-learning algorithms to predict sensory attributes of molecules based on their chemoinformatic features.The resulting models accurately predicted odor intensity and pleasantness and also successfully predicted 8 among 19 rated semantic descriptors ("garlic," "fish," "sweet," "fruit," "burnt," "spices," "flower," and "sour"). Regularized linear models performed nearly as well as random forest-based ones, with a predictive accuracy that closely approaches a key theoretical limit.These models help to predict the perceptual qualities of virtually any molecule with high accuracy and also reverse-engineer the smell of a molecule.

Original languageEnglish
Pages (from-to)820-826
Number of pages7
JournalScience
Volume355
Issue number6327
DOIs
StatePublished - 24 Feb 2017
Externally publishedYes

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