Fast Target Set Reduction for Large-Scale Protein Function Prediction: A Multi-class Multi-label Machine Learning Approach

  • Thomas Lingner
  • Peter Meinicke
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5251)

Abstract

Large-scale sequencing projects have led to a vast amount of protein sequences, which have to be assigned to functional categories. Currently, profile hidden markov models and kernel-based machine learning methods provide the most accurate results for protein classification. However, the prediction of new sequences with these approaches is computationally expensive. We present an approach for fast scoring of protein sequences by means of feature-based protein sequence representation and multi-class multi-label machine learning techniques. Using the Pfam database, we show that our method provides high computational efficiency and that the approach is well-suitable for pre-filtering of large sequence sets.

Keywords

protein classification large-scale multi-class multi-label Pfam homology search metagenomics target set reduction protein function prediction machine learning 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Thomas Lingner
    • 1
  • Peter Meinicke
    • 1
  1. 1.Department of Bioinformatics, Institute for Microbiology and GeneticsUniversity of GöttingenGöttingenGermany

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