Fig. 5
From: Estimating Phred scores of Illumina base calls by logistic regression and sparse modeling
Comparisons of the Logistic quality scoring with the Illumina (Lookup table) scoring method. Two kinds of fluorescence signals preprocessed respectively by 3Dec and Bustard are used for comparisons. There are four combinations of schemes: Bustard+Lookup, Bustard+Logistic, 3Dec+Lookup, and 3Dec+Logistic. The first item is the base-calling method and the second item is the quality scoring method. The detailed implementations of these four schemes are described in Results. We compared them in two aspects: consistency and empirical discrimination power. a The consistency of four schemes. Left: 3Dec+Logistic and 3Dec+Lookup; Right: Bustard+Logistic and Bustard+Lookup. b The empirical discrimination powers of four schemes