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. 2010 Jan 15;26(5):589–595. doi: 10.1093/bioinformatics/btp698

Fig. 1.

Fig. 1.

Prefix trie and prefix DAWG of string ‘GOOGOL’. (A) Prefix trie. Symbol ‘∧’ marks the start of a string. The two numbers in a node gives the SA interval of the node. (B) Prefix DAWG constructed by collapsing nodes with the identical SA interval. For example, in the prefix trie, three nodes has SA interval [4, 4]. Their parents have interval [1, 2], [1, 2] and [1, 1], respectively. In the prefix DAWG, the [4, 4] node thus has parents [1, 2] and [1, 1]. Node [4, 4] represents three strings ‘OG’, ‘OGO’ and ‘OGOL’ with the first two strings being the prefix of ‘OGOL’. (A) is modified from Figure 1 in Li and Durbin (2009).