Using CMAC for adaptive nonlinear MPC and optimal setpoint identification of an activated sludge process
Bibliographic record
Abstract
This paper proposes both an adaptive nonlinear model predictive control and a method to identify an optimal setpoint. Local discrete-time linear models, estimated from output measurements, are stored in a Cerebellar Model Arithmetic Computer (CMAC). The CMAC provides a practical way to store, access, and interpolate the models in real-time and for future-time predictions. A finite-horizon nonlinear optimization decides on a desired control signal for training a CMAC controller. In order to search for on an optimal setpoint in the case of a measured disturbance, another set of local linear models is produced that depends on only outputs and disturbances. A Lyapunov-based method ensures stability (uniformly ultimately bounded signals) in the cases of a cart-pendulum system and an activated sludge process for wastewater treatment. Simulation results show successful trajectory tracking and setpoint identification for both systems in simulation.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".