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. 2014 Sep 30;2:e606. doi: 10.7717/peerj.606

Figure 2. Ratio between the worst case size of the q-group index and the size of the q-gram index.

Figure 2

Ratio between the worst case size of the q-group index and the size of the q-gram index for different K. The purple line marks the break-even point, i.e., the K beyond which the q-group index guarantees to be smaller than the classical q-gram index.