Abstract
On account of the idea of maximum fuzzy entropy and symmetric implicational mechanism under the environment of intuitionistic fuzzy sets, we come up with the intuitionistic fuzzy entropy derived symmetric implicational (IFESI) algorithm. Above all, novel symmetric implicational principles are presented, and the unified solutions of the IFESI algorithm are acquired for IFMP (intuitionistic fuzzy modus ponens) and IFMT (intuitionistic fuzzy modus ponens), which build upon in view of residual intuitionistic implications. Thereafter, the reductive properties and continuity of the IFESI algorithm are validated for IFMP and IFMT. In addition, the IFESI algorithm is extended to the alpha-IFESI algorithm, and the unified solutions of the alpha-IFESI algorithm are obtained for IFMP and IFMT. Finally, two examples of fuzzy classification for the alpha-IFESI algorithm are presented to demonstrate the detailed computing process of the IFESI algorithm.