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Record W3036126848 · doi:10.35424/rcarto.i101.672

Modelagem das mudanças espaço-temporais de áreas úmidas: estudo de caso da Região Administrativa de Abitibi-Témiscamingue – Québec, Canadá

2020· article· pt· W3036126848 on OpenAlexaffabout
Mariana Tiné, Liliana Pérez, Roberto Molowny‐Horas

Bibliographic record

VenueRevista Cartográfica · 2020
Typearticle
Languagept
FieldEnvironmental Science
TopicLand Use and Ecosystem Services
Canadian institutionsUniversité de Montréal
Fundersnot available
KeywordsPhysicsHumanitiesForestryGeographyArt

Abstract

fetched live from OpenAlex

As áreas úmidas estão entre os ecossistemas mais produtivos que existem, elas abrigam uma ampla biodiversidade de aves, peixes, vegetais, entre outros. Elas também desempenham papel fundamental no que diz respeito à mitigação e adaptação climática. Apesar de sua grande importância, estes ecossistemas estão cada vez mais ameaçados, seja pela interferência humana, seja pelas mudanças climáticas. Cerca de 35 % das áreas úmidas do planeta se localizam no Canadá, onde grande parte está na zona de floresta boreal. Este estudo tem como objetivo simular as mudanças espaço-temporais destes ecossistemas através de técnicas de modelagem híbrida. Para isto, foram usadas imagens de cobertura da terra multitemporais, interpretadas a partir do satélite LANDSAT, com as quais foi possível simular cenários até o ano de 2055, cujos resultados foram validados através de técnicas de comparação de mapas. A análise de mudanças mostrou um aumento das áreas úmidas de cerca de 63 % entre os anos de 1985 e 2005, tendência que persistiu até 2055, com um aumento contínuo destas na região de estudo. A análise e simulação de cenários futuros pode ajudar e apoiar a gestão e planejamento no que diz respeito à conservação destes ecossistemas tão importantes.

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)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation 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: Empirical
Teacher disagreement score0.034
Threshold uncertainty score0.111

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0030.001
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.025
GPT teacher head0.264
Teacher spread0.239 · 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 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

Citations0
Published2020
Admission routes2
Has abstractyes

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