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Adaptive Model Reduction and State Estimation of Agro-hydrological Systems

2022· article· en· W4226019104 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venue2022 American Control Conference (ACC) · 2022
Typearticle
Languageen
FieldEnvironmental Science
TopicSoil Moisture and Remote Sensing
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsComputer scienceDimensionality reductionEstimatorTrajectoryMathematical optimizationCurse of dimensionalityField (mathematics)Reduction (mathematics)Artificial intelligenceMathematicsStatistics

Abstract

fetched live from OpenAlex

Closed-loop irrigation can provide a reliable solution for precision irrigation. One challenge in closed-loop irrigation is to estimate the soil moisture information. The very high dimensionality of a typical agricultural field model makes optimization-based state estimators like Moving Horizon Estimation (MHE) very challenging. This work addresses the very high dimensionality issue and proposes a systematic approach for state estimation of large-scale agro-hydrological systems. We first present an algorithm for structure-preserving adaptive model reduction using trajectory-based unsupervised machine learning techniques; and then an adaptive MHE algorithm is developed based on the reduced model. The proposed algorithms are applied to an actual agricultural field to show the effectiveness of the proposed approaches.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.133
Threshold uncertainty score0.494

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.012
GPT teacher head0.216
Teacher spread0.203 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it