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@ARTICLE{Qi:13095,
author = {Qi, Y. and Tastan, O. and Carbonell, J.G. and
Klein-Seetharaman, J. and Weston, J.},
title = {{S}emi-{S}upervised {M}ulti-{T}ask {L}earning for
{P}redicting {I}nteractions between {HIV}-1 and {H}uman
{P}roteins},
journal = {Bioinformatics},
volume = {26},
issn = {1367-4803},
address = {Oxford},
publisher = {Oxford University Press},
reportid = {PreJuSER-13095},
pages = {1645 - 1652},
year = {2010},
note = {Record converted from VDB: 12.11.2012},
abstract = {Protein-protein interactions (PPIs) are critical for
virtually every biological function. Recently, researchers
suggested to use supervised learning for the task of
classifying pairs of proteins as interacting or not.
However, its performance is largely restricted by the
availability of truly interacting proteins (labeled).
Meanwhile, there exists a considerable amount of protein
pairs where an association appears between two partners, but
not enough experimental evidence to support it as a direct
interaction (partially labeled).We propose a semi-supervised
multi-task framework for predicting PPIs from not only
labeled, but also partially labeled reference sets. The
basic idea is to perform multi-task learning on a supervised
classification task and a semi-supervised auxiliary task.
The supervised classifier trains a multi-layer perceptron
network for PPI predictions from labeled examples. The
semi-supervised auxiliary task shares network layers of the
supervised classifier and trains with partially labeled
examples. Semi-supervision could be utilized in multiple
ways. We tried three approaches in this article, (i)
classification (to distinguish partial positives with
negatives); (ii) ranking (to rate partial positive more
likely than negatives); (iii) embedding (to make data
clusters get similar labels). We applied this framework to
improve the identification of interacting pairs between
HIV-1 and human proteins. Our method improved upon the
state-of-the-art method for this task indicating the
benefits of semi-supervised multi-task learning using
auxiliary information.http://www.cs.cmu.edu/~qyj/HIVsemi.},
keywords = {Algorithms / Artificial Intelligence / Computational
Biology: methods / Data Interpretation, Statistical / HIV-1:
physiology / Human Immunodeficiency Virus Proteins:
metabolism / Humans / Models, Statistical / Protein
Interaction Mapping: methods / Proteins: metabolism / Human
Immunodeficiency Virus Proteins (NLM Chemicals) / Proteins
(NLM Chemicals) / J (WoSType)},
cin = {ISB-2},
ddc = {004},
cid = {I:(DE-Juel1)ISB-2-20090406},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung},
pid = {G:(DE-Juel1)FUEK505},
shelfmark = {Biochemical Research Methods / Biotechnology $\&$ Applied
Microbiology / Computer Science, Interdisciplinary
Applications / Mathematical $\&$ Computational Biology /
Statistics $\&$ Probability},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20823334},
pmc = {pmc:PMC2935441},
UT = {WOS:000281714100035},
doi = {10.1093/bioinformatics/btq394},
url = {https://juser.fz-juelich.de/record/13095},
}