Fig. 5
From: Comparative analysis of metagenomic classifiers for long-read sequencing datasets
Read alignment. Read alignment consists of three steps (1) Indexing and kmer search, (2) Chaining and scoring (3) Alignment. Kmer-based tools use only the first step, and usually, they do not care about the position in the genome. Mapping-based tools use the first and second steps, which increase accuracy but last much longer. The alignment step provides the exact alignment and the score but increases the running time