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Record W7072122587

Understanding avalanche problem assessments: A concept mapping study with public avalanche forecasters

2022· dissertation· en· W7072122587 on OpenAlexaboutno aff

Bibliographic record

VenueSummit (Simon Fraser University) · 2022
Typedissertation
Languageen
FieldEnvironmental Science
TopicLandslides and related hazards
Canadian institutionsnot available
Fundersnot available
KeywordsComponent (thermodynamics)HazardPoison controlPoint (geometry)Range (aeronautics)Noise (video)Human factors and ergonomicsRisk assessment
DOInot available

Abstract

fetched live from OpenAlex

Avalanche problems have become a fundamental component of avalanche hazard assessment and communication since the introduction of the Conceptual Model of Avalanche Hazard. However, the observations used to assess them are not explicitly defined and rely largely on avalanche forecasters’ subjective judgements that are prone to noise and bias. This study uses concept mapping to develop a comprehensive understanding of factors influencing operational applications of avalanche problems in public avalanche bulletins in Canada. Interviews with 22 experienced forecasters revealed a diverse range of physical observations and additional considerations. While some of the observed inconsistencies can be attributed to physical differences among forecast regions, others originate from personal perspectives on risk communication considerations, approaches to dealing with uncertainty, and attributes of operational forecast systems. This research offers a starting point for the development of more objective criteria for adding and removing avalanche problems in public bulletins.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.024
metaresearch head score (Gemma)0.047
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Qualitative · Consensus signal: Qualitative
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.025
Threshold uncertainty score0.125

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0240.047
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0030.003
Science and technology studies0.0080.005
Scholarly communication0.0070.013
Open science0.0020.004
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0030.000

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 head0.036
GPT teacher head0.234
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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designQualitative
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2022
Admission routes1
Has abstractyes

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