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Record W1662399702 · doi:10.5942/jawwa.2016.108.0008

Using Decision Trees to Predict Drinking Water Advisories in Small Water Systems

2015· article· en· W1662399702 on OpenAlex
Heather Murphy, M. A. Bhatti, Richard Harvey, Edward A. McBean

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.
fundA Canadian funder is recorded on the work.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueAmerican Water Works Association · 2015
Typearticle
Languageen
FieldEngineering
TopicWater Systems and Optimization
Canadian institutionsUniversity of Guelph
FundersAboriginal Affairs and Northern Development CanadaNatural Sciences and Engineering Research Council of CanadaHealth Canada
KeywordsWater sourceDecision treeWater useWater infrastructureEnvironmental planningGeographic information systemEnvironmental resource managementEnvironmental scienceComputer scienceWater resource managementGeographyWater supplyEnvironmental engineeringData miningEcologyCartography

Abstract

fetched live from OpenAlex

As of Jan. 1, 2015, there were 1,838 drinking water advisories (DWAs) in effect across Canada, including DWAs in First Nations communities. This research investigates the use of data‐mining techniques to identify which factors can potentially lead to a DWA in small water systems such as those found in First Nations communities in Canada. The results show that the training level of operators, remoteness/geographic location, source water type, and the class of treatment system are factors that influence whether a DWA is issued in a water system. The decision trees discussed in this study demonstrate that data mining is capable of correctly predicting up to 79% of future DWAs. This study demonstrates that a decisiontree methodology is a powerful, user‐friendly tool that can help water managers and regulators better understand vulnerabilities related to the provision of drinking water in small systems.

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)0.001
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 score0.061
Threshold uncertainty score0.632

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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 head0.016
GPT teacher head0.215
Teacher spread0.199 · 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