Σύγκριση μεθόδων

	Αναδρομικό Νευρωνικό Δίκτυο	Εντροπία Δείγματος
Πεδίο	Βαθιά Μάθηση	Πολύπλοκα Συστήματα
Οικογένεια	Machine learning	Machine learning
Έτος προέλευσης	1986–1990	2000
Δημιουργός	Rumelhart, D. E.; Elman, J. L.	Richman & Moorman
Τύπος	Sequential neural network	Nonlinear entropy measure
Θεμελιώδης πηγή	Elman, J. L. (1990). Finding structure in time. Cognitive Science, 14(2), 179–211.	Richman, J. S., & Moorman, J. R. (2000). Physiological time-series analysis using approximate entropy and sample entropy. American Journal of Physiology, 278(6), H2039–H2049.
Εναλλακτικές ονομασίες	RNN, Elman network, Jordan network, simple recurrent network	SampEn, Sample Entropy (SampEn), Örneklem Entropisi, Nonlinear Complexity Measure
Συναφείς	3	2
Σύνοψη	A Recurrent Neural Network (RNN) is a class of neural network designed to process sequential data by maintaining a hidden state that carries information across time steps. Introduced in its modern form by Rumelhart et al. (1986) and further shaped by Elman (1990), RNNs became the dominant architecture for sequence modelling in NLP, speech, and time-series analysis before the rise of attention-based models.	Sample Entropy (SampEn) is a nonlinear measure of the complexity and regularity of a time series. Introduced by Richman and Moorman in 2000 as an improvement over Approximate Entropy (ApEn), it quantifies the likelihood that similar patterns of a given length in the series remain similar when extended by one additional data point. A higher SampEn value indicates greater irregularity and complexity, while a lower value indicates more regularity or self-similarity.