TY - GEN
T1 - Bayesian joint estimation of CN and LOH aberrations
AU - Rancoita, Paola M.V.
AU - Hutter, Marcus
AU - Bertoni, Francesco
AU - Kwee, Ivo
PY - 2009
Y1 - 2009
N2 - SNP-microarrays are able to measure simultaneously both copy number and genotype at several single nucleotide polymorphism positions. Combining the two data, it is possible to better identify genomic aberrations. For this purpose, we propose a Bayesian piecewise constant regression which infers the type of aberration occurred, taking into account all the possible influence in the microarray detection of the genotype, resulting from an altered copy number level. Namely, we model the distributions of the detected genotype given a specific genomic alteration and we estimate the hyper-parameters used on public reference datasets.
AB - SNP-microarrays are able to measure simultaneously both copy number and genotype at several single nucleotide polymorphism positions. Combining the two data, it is possible to better identify genomic aberrations. For this purpose, we propose a Bayesian piecewise constant regression which infers the type of aberration occurred, taking into account all the possible influence in the microarray detection of the genotype, resulting from an altered copy number level. Namely, we model the distributions of the detected genotype given a specific genomic alteration and we estimate the hyper-parameters used on public reference datasets.
KW - Bayesian regression
KW - Change point problem
KW - DNA copy number estimation
KW - LOH estimation
KW - Piecewise constant function
UR - http://www.scopus.com/inward/record.url?scp=77952567971&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-02481-8_168
DO - 10.1007/978-3-642-02481-8_168
M3 - Conference contribution
SN - 3642024807
SN - 9783642024801
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 1109
EP - 1117
BT - Distributed Computing, Artificial Intelligence, Bioinformatics, Soft Computing, Ambient Assisted Living - 10th Int. Work-Conf. Artificial Neural Networks, IWANN 2009 Workshops, Proceedings
T2 - 10th International Work-Conference on Artificial Neural Networks, IWANN 2009
Y2 - 10 June 2009 through 12 June 2009
ER -