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  1. Labeling a sparse covering of a De Bruijn graph, and utility thereof

    So far, in this week of khmer blog posts (1, 2, 3), we've been focusing on the read-to-graph aligner ("graphalign"), which enables sequence alignments to a De Bruijn graph. One persistent challenge with this functionality as introduced is that our De Bruijn graphs nodes are anonymous, so we have no …

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  2. Abundance counting of sequences in graphs with graphalign

    De Bruijn graph alignment should also be useful for exploring concepts in transcriptomics/mRNAseq expression. As with variant calling graphalign can also be used to avoid the mapping step in quantification; and, again, as with the variant calling approach, we can do so by aligning our reference sequences to the …

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  3. Graph alignment and variant calling

    There's an interesting and intuitive connection between error correction and variant calling - if you can do one well, it lets you do (parts of) the other well. In the previous blog post on some new features in khmer, we introduced our new "graphalign" functionality, that lets us align short sequences …

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