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Record W3206422146 · doi:10.1016/j.cageo.2021.104962

Updating geostatistically simulated models of mineral deposits in real-time with incoming new information using actor-critic reinforcement learning

2021· article· en· W3206422146 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

VenueComputers & Geosciences · 2021
Typearticle
Languageen
FieldEngineering
TopicReservoir Engineering and Simulation Methods
Canadian institutionsMcGill University
Fundersnot available
KeywordsReinforcement learningComputer scienceGridNode (physics)Artificial intelligenceSpatial analysisData miningMachine learningGeology

Abstract

fetched live from OpenAlex

The existing technologies that update geostatistically simulated models of mineral deposits cannot self-learn from incoming new information generated in operating mines and do not account for high-order spatial statistics. This work proposes a novel self-learning artificial intelligence algorithm that learns from incoming new information and accounts for high-order spatial statistics, in order to update the geostatistically simulated models of mineral deposits in real-time. The proposed algorithm uses deep policy gradient reinforcement learning with an actor and a critic agent. The grid nodes of the geostatistically simulated model are visited sequentially in a random path, the environment generates the states for each grid node, and feeds the state to the actor and critic agents that respectively predict and evaluate the updated property of the grid node The data is stored in a replay memory, which is sampled at regular intervals to train the agents. The trained agents are then used for further rounds of self-learning. An application of the proposed algorithm at a copper mining operation with incoming drilling machine sensor data (collected spatially), and processing mill sensor data (collected over time), demonstrates its applied aspects in updating the geostatistically simulated models of copper grades of the mineral deposit in real-time, while also reproducing spatial patterns and high-order spatial statistics.

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: none
Teacher disagreement score0.273
Threshold uncertainty score0.541

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
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 head0.018
GPT teacher head0.260
Teacher spread0.242 · 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