Fig. 2
From: PCVR: a pre-trained contextualized visual representation for DNA sequence classification
DNA sequence FCGR embedding process of PCVR. For clarity, we present an example with \(k = 3\). Each k-mer in the DNA sequence is mapped to a grid position in CGR. The locating process of the first four k-mers is displayed using colored lines. The number of each k-mer that appears in a sequence is counted. Finally, these counts are converted into frequencies and each pixel in the FCGR is shaded according to its frequency