scholarly journals pyDeltaRCM: a flexible numerical delta model

2021 ◽  
Vol 6 (64) ◽  
pp. 3398 ◽  
Author(s):  
Andrew Moodie ◽  
Jayaram Hariharan ◽  
Eric Barefoot ◽  
Paola Passalacqua
Keyword(s):  
Delta Model

scholarly journals Learning reward frequency over reward probability: A tale of two learning rules

2018 ◽  
Author(s):  
Hilary Don ◽  
A Ross Otto ◽  
Astin Cornwall ◽  
Tyler Davis ◽  
Darrell A. Worthy
Keyword(s):  
Average Reward ◽  
Binary Outcome ◽  
Delta Rule ◽  
Human Choice ◽  
Presentation Frequency ◽  
Learning Rules ◽  
Expected Values ◽  
Value Learning ◽  
Average Rewards ◽  
Delta Model

Learning about reward and expected values of choice alternatives is critical for adaptive behavior. Although human choice is affected by the presentation frequency of reward-related alternatives, this is overlooked by some dominant models of value learning. For instance, the delta rule learns average rewards, whereas the decay rule learns cumulative rewards for each option. In a binary-outcome choice task, participants selected between pairs of options that had reward probabilities of .65 (A) versus .35 (B) or .75 (C) versus .25 (D). Crucially, during training there were twice as many AB trials as CD trials, therefore option A was associated with higher cumulative reward, while option C gave higher average reward. Participants then decided between novel combinations of options (e.g., AC). Participants preferred option A, a result predicted by the Decay model, but not the Delta model. This suggests that expected values are based more on total reward than average reward.

Analysis of the effectiveness of space debris mitigation measures using the delta model

2001 ◽  
Vol 28 (9) ◽  
pp. 1437-1445 ◽  
Author(s):  
R. Walker ◽  
C.E. Martin ◽  
P.H. Stokes ◽  
J.E. Wilkinson ◽  
H. Klinkrad
Keyword(s):  
Space Debris ◽  
Mitigation Measures ◽  
Debris Mitigation ◽  
Delta Model

Decentralized Adaptive Control Based on Delta Model Representation

1994 ◽  
Vol 27 (11) ◽  
pp. 239-244
Author(s):  
M. Bakošová ◽  
R. Prokop ◽  
P. Dostál
Keyword(s):  
Adaptive Control ◽  
Model Representation ◽  
Delta Model

scholarly journals The Delta Model for Fresh Water Policy Analysis in the Netherlands

2014 ◽  
Vol 29 (2) ◽  
pp. 645-661 ◽  
Author(s):  
Geert Prinsen ◽  
Frederiek Sperna Weiland ◽  
Erik Ruijgh
Keyword(s):  
The Netherlands ◽  
Policy Analysis ◽  
Fresh Water ◽  
Water Policy ◽  
Delta Model
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