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Record W2089586661 · doi:10.1504/ijram.2011.042673

Assessing global change when data are sparse

2011· article· en· W2089586661 on OpenAlexafffund
Marc A. Maes, Markus R. Dann

Bibliographic record

VenueInternational Journal of Risk Assessment and Management · 2011
Typearticle
Languageen
FieldDecision Sciences
TopicForecasting Techniques and Applications
Canadian institutionsUniversity of Calgary
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsNatural hazardClimate changeHazardGlobal warmingInferenceStatistical inferenceComputer scienceRisk analysis (engineering)EconometricsGeographyStatisticsBusinessMeteorologyEconomicsMathematicsArtificial intelligenceGeology

Abstract

fetched live from OpenAlex

Natural disasters and large-scale industrial accidents are rare events having very low probability of occurrence. They may result in high consequences for society, the environment and the economy. Media reports often suggest that the occurrence and severity of such hazards is perceived to be changing. Change may be a consequence of global environmental changes such as global warming, tectonic and geological changes, or changing human activity. The assessment of global hazard change using standard statistical methods can be challenging due to sparse or lacking data leading to increased parameter uncertainties. To compensate for the sparseness of data, a hierarchical model approach is introduced where similar hazards (or groups of hazards) are combined within one model. Statistical inference must then ‘borrow information’ from similar hazards resulting in informed risk analysis and decision making. As an example in this paper, the hierarchical approach is applied to the question: “Have tsunamis becoming more or less frequent in the last century?”

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 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)0.002
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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.630
Threshold uncertainty score0.499

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0020.001
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 head0.519
GPT teacher head0.510
Teacher spread0.009 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
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

Citations3
Published2011
Admission routes2
Has abstractyes

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