DC-CRNN	Dynamically Configurable Convolutional Recurrent Neural Network
SSA	Salp Swarm Optimization Algorithm
SA	Simulated Annealing
HC	Hill Climbing
LAHC	Late Acceptance Hill-Climbing
TS	Tabu Search
lp	Local Search Probability
RNNs	Recurrent Neural Networks
CRNNs	Convolutional Recurrent Neural Networks
CNNs	Convolutional Neural Networks
NAS	Neural Architecture Search
LSTM	Long Short-Term Memory
WFST	Weighted Finite-State Transducer
CTC	Connectionist Temporal Classification
BLSTM	Bidirectional Long Short-Term Memory
STN	Spatial Transformer Network
TL	Transfer Learning
seq-to-seq	Sequence-To-Sequence
LDN	Language Denoiser Network
NEAT	Neuroevolution Of Augmenting Topologies
PSO	Particle Swarm Optimization
QBPSO	Particle Swarm Optimization With Binary Encoding
ACO	Ant Colony Optimization
HSSA	Hybrid Salp Swarm Optimization Algorithm
IFN/ENIT	Technology/Ecole Nationale d’Ingénieurs De Tunis
WER	Word Error Rate
CER	Character Error Rate