Kernels for Chemical Compounds in Biological Screening

  • Authors:
  • Karol Kozak;Marta Kozak;Katarzyna Stapor

  • Affiliations:
  • Max Planck Institute of Molecular Cell Biology, 01307 Dresden, Germany;Max Planck Institute of Molecular Cell Biology, 01307 Dresden, Germany;Silesian Technical University, 44-100 Gliwice, Poland

  • Venue:
  • ICANNGA '07 Proceedings of the 8th international conference on Adaptive and Natural Computing Algorithms, Part II
  • Year:
  • 2007

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Abstract

Kernel methods are a class of algorithms for pattern analysis with a number of convenient features. This paper proposes extension of the kernel method for biological screening data including chemical compounds. Our investigation of extending kernel aims to combine properties of graphical structure and molecule descriptors. The use of such kernels allows comparison of compounds, not only on graphs but also on important molecular descriptors. Our experimental evaluation of eight different classification problems shows that a proposed special kernel, which takes into account chemical molecule structure and molecule descriptors, statistically improves significantly the classification performance.