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Table 3 Cumulative F1 sum for k-means algorithm with distinct k values

From: Automatic and online setting of similarity thresholds in content-based visual information retrieval problems

k

CAPTE

INRIA

Corel

k = 2

3.9492

6.0073

9.2071

k = 4

5.6523

9.6352

14.1657

k = 8

-

13.6408

18.3246