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. 2013 Jul 10;14:220. doi: 10.1186/1471-2105-14-220

Figure 1.

Figure 1

Flowchart of NURD algorithm. Using NURD to estimate the isoform expression mainly consists of five steps: (1) read mapping, which is not a part of NURD, but the preparation for it; (2) getting gene annotation; (3) counting reads based on gene annotation and read mapping; (4) getting likelihood function based on read counts and gene annotation; (5) estimating isoform expression by maximize the likelihood.