Inferring gene interaction networks from ISH images via kernelized graphical models

  • Authors:
  • Kriti Puniyani;Eric P. Xing

  • Affiliations:
  • School of Computer Science, Carnegie Mellon University;School of Computer Science, Carnegie Mellon University

  • Venue:
  • ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part VI
  • Year:
  • 2012

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Abstract

New bio-technologies are being developed that allow high-throughput imaging of gene expressions, where each image captures the spatial gene expression pattern of a single gene in the tissue of interest. This paper addresses the problem of automatically inferring a gene interaction network from such images. We propose a novel kernel-based graphical model learning algorithm, that is both convex and consistent. The algorithm uses multi-instance kernels to compute similarity between the expression patterns of different genes, and then minimizes the L1 regularized Bregman divergence to estimate a sparse gene interaction network. We apply our algorithm on a large, publicly available data set of gene expression images of Drosophila embryos, where our algorithm makes novel and interesting predictions.