Table 1. Transformation techniques summary [29].

Name	Description of algorithms
PMU	Forward sequence + Mutual Information + Label Combination + second order
PSO-MMI	Particle Swarm Optimization
IPF	Interior Function of Penalty
FIMF	The preamble sequence and the label conjunction pattern have little reciprocal information exchange.
mRMR	Next sequence: Mutual information one by one
MAMFS	Sequential Forward Selection Label with a high order Mutual Knowledge Arrangement
MDMR	Mutual knowledge, individual by individual selecting onward patterns
MFNMI	Selection of Forward Sequence + distribution of mutual knowledge ascertained locally
MIFS	Optimization Alternative

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