A Framework for Optimizing Human-Machine Interaction in Classification Systems

Fuente: arXiv
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Auteurs principaux: Muric, Goran, Minton, Steven
Format: Preprint
Publié: 2026
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author Muric, Goran
Minton, Steven
author_facet Muric, Goran
Minton, Steven
contents Automated decision systems increasingly rely on human oversight to ensure accuracy in uncertain cases. This paper presents a practical framework for optimizing such human-in-the-loop classification systems using a double-threshold policy. Conventional classifiers usually produce a confidence score and apply a single cutoff, but our approach uses two thresholds (a lower and an upper) to automatically accept or reject high-confidence cases while routing ambiguous instances to human reviewers. We formulate this problem as an optimization task that balances system accuracy against the cost of human review. Through analytical derivations and Monte Carlo simulations, we show how different confidence score distributions impact the efficiency of human intervention and reveal regions of diminishing returns, where additional review yields minimal benefit. The framework provides a general, reproducible method for improving reliability in any decision pipeline requiring selective human validation, including applications in entity resolution, fraud detection, medical triage, and content moderation.
format Preprint
id arxiv_https___arxiv_org_abs_2601_05974
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A Framework for Optimizing Human-Machine Interaction in Classification Systems
Muric, Goran
Minton, Steven
Human-Computer Interaction
Automated decision systems increasingly rely on human oversight to ensure accuracy in uncertain cases. This paper presents a practical framework for optimizing such human-in-the-loop classification systems using a double-threshold policy. Conventional classifiers usually produce a confidence score and apply a single cutoff, but our approach uses two thresholds (a lower and an upper) to automatically accept or reject high-confidence cases while routing ambiguous instances to human reviewers. We formulate this problem as an optimization task that balances system accuracy against the cost of human review. Through analytical derivations and Monte Carlo simulations, we show how different confidence score distributions impact the efficiency of human intervention and reveal regions of diminishing returns, where additional review yields minimal benefit. The framework provides a general, reproducible method for improving reliability in any decision pipeline requiring selective human validation, including applications in entity resolution, fraud detection, medical triage, and content moderation.
title A Framework for Optimizing Human-Machine Interaction in Classification Systems
topic Human-Computer Interaction
url https://arxiv.org/abs/2601.05974