| Input: similarity matrix , dataset , maximum number of iteration | | Output: valid exemplar set . | | (1) | Randomly generate expansion order . | | (2) | Let ; | | (3) | fordo | | (4) | ifthen | | (5) | compute by equations (18), (19) | | (6) | ifthen | | (7) | for , set | | (8) | end | | (9) | else | | (10) | compute by equations (20), (21), (22) | | (11) | ifthen | | (12) | for , set | | (13) | else | | (14) | for , set | | (15) | end | | (16) | ifthen | | (17) | Accept the new exemplar | | (18) | end | | (19) | end | | (20) | t = t + 1 | | (21) | end | | (22) | Until convergence |
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