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A Novel Method to Estimate Measurement Error in AI-Assisted Measurements

2022· article· en· W4283741227 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 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) · 2022
Typearticle
Languageen
FieldComputer Science
TopicAdversarial Robustness in Machine Learning
Canadian institutionsUniversity of Ottawa
Fundersnot available
KeywordsComputer scienceObservational errorArtificial intelligenceAlgorithmStatisticsMathematics

Abstract

fetched live from OpenAlex

Adopting Artificial Intelligence (AI) systems in measurement instruments and systems entails a necessity to predict the error contributed by the AI model to the measured value, especially on out-of-sample data. However, reporting aggregated error estimates, such as model accuracy or Root Mean Square Error (RMSE) as is customary in AI, cannot quantify the error of the AI model for a single measurement instance, which is what we need in measurement. In this paper, we propose a novel method to estimate the AI model’s error for a single measurement. Our goal is to predict the error and use it to correct the predicted measurand’s quantity. To do so, in the first step we use an existing dataset to train an AI model that predicts measurement values, which is the usual approach for designing AI-assisted measurement systems. Our contribution is in the second step, where we create a secondary dataset that consists of the errors between the ground truth and the predicted values, and we use this dataset to train a secondary AI model that predicts the errors. We then adjust the predicted measurement values with the predicted error values. Our performance evaluations on the well-known California Housing dataset shows that our approach lowers the measurement predictions’ Mean Absolute Percentage Error from 21% to 16%, resulting in more accurate measurements.

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)0.003
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.855
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0020.001
Research integrity0.0000.001
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 head0.130
GPT teacher head0.382
Teacher spread0.252 · 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