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Bibliographic Details
Main Authors: Veskoukis, Alexios, Kalles, Dimitris
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.15955
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author Veskoukis, Alexios
Kalles, Dimitris
author_facet Veskoukis, Alexios
Kalles, Dimitris
contents Decision-tree methods are widely used on structured tabular data and are valued for interpretability across many sectors. However, published studies often list the predictors they use (for example age, diagnosis codes, location). Privacy laws increasingly regulate such data types. We use published decision-tree papers as a proxy for real-world use of legally governed data. We compile a corpus of decision-tree studies and assign each reported predictor to a regulated data category (for example health data, biometric identifiers, children's data, financial attributes, location traces, and government IDs). We then link each category to specific excerpts in European Union and United States privacy laws. We find that many reported predictors fall into regulated categories, with the largest shares in healthcare and clear differences across industries. We analyze prevalence, industry composition, and temporal patterns, and summarize regulation-aligned timing using each framework's reference year. Our evidence supports privacy-preserving methods and governance checks, and can inform ML practice beyond decision trees.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15955
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Governance by Evidence: Regulated Predictors in Decision-Tree Models
Veskoukis, Alexios
Kalles, Dimitris
Machine Learning
Decision-tree methods are widely used on structured tabular data and are valued for interpretability across many sectors. However, published studies often list the predictors they use (for example age, diagnosis codes, location). Privacy laws increasingly regulate such data types. We use published decision-tree papers as a proxy for real-world use of legally governed data. We compile a corpus of decision-tree studies and assign each reported predictor to a regulated data category (for example health data, biometric identifiers, children's data, financial attributes, location traces, and government IDs). We then link each category to specific excerpts in European Union and United States privacy laws. We find that many reported predictors fall into regulated categories, with the largest shares in healthcare and clear differences across industries. We analyze prevalence, industry composition, and temporal patterns, and summarize regulation-aligned timing using each framework's reference year. Our evidence supports privacy-preserving methods and governance checks, and can inform ML practice beyond decision trees.
title Governance by Evidence: Regulated Predictors in Decision-Tree Models
topic Machine Learning
url https://arxiv.org/abs/2512.15955