Abbreviations	Full Name
EMTO	Evolutionary multitasking optimization
EMTAs	Evolutionary multitask algorithms
DE	Differential evolution
GA	Genetic algorithm
PSO	Particle swarm optimization
ACO	Ant colony optimization
MTLLSO	Multitask level-based learning swarm optimizer
MFEA	Multifactorial evolutionary algorithm
MFEA-II	Multifactorial evolutionary algorithm with online transfer parameter estimation
MTGA	Multitasking genetic algorithm
MFDE	Multifactorial differential evolution
DAMTO	Domain adaptation multitask optimization
BLKT-DE	Block-level knowledge transfer for evolutionary multitask optimization
MFPSO	Multifactorial particle swarm optimization
LLSO	Level-based learning swarm optimizer
RLMFEA	Evolutionary multitasking via reinforcement learning
MFEA-AKT	MFEA with adaptive knowledge transfer
LBKT	Level-based knowledge transfer
EMEA	Evolutionary multitasking via explicit autoencoding
CI	Complete intersection
PI	Partial intersection
NI	No intersection
HS	High similarity
MS	Medium similarity
LS	Low similarity