keywords = "genetic algorithms, genetic programming, ranking
function, peptide-spectrum match, tandem mass
spectrometry",
isbn13 = "978-1-7281-2152-6",
DOI = "doi:10.1109/CEC.2019.8790049",
size = "8 pages",
abstract = "The analysis of tandem mass spectrometry (MS/MS)
proteomics data relies on automated methods that assign
peptides to observed MS/MS spectra. Typically these
methods return a list of candidate peptide-spectrum
matches (PSMs), ranked according to a scoring function.
Normally the highest-scoring candidate peptide is
considered as the best match for each spectrum.
However, these best matches do not necessary always
indicate the true matches. Identifying a full-length
correct peptide by peptide identification tools is
crucial, and we do not want to assign a spectrum to the
peptide which is not expressed in the given biological
sample. Therefore in this paper, we present a new
approach to improving the previous ordering/ranking of
the PSMs, aiming at bringing the correct PSM for
spectrum ahead of all the incorrect ones for the same
spectrum. We develop a new method called GP-PSM-rank,
which employs genetic programming (GP) to learn a
ranking function by combining different feature
functions",