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Record W7091633219 · doi:10.5281/zenodo.17360639

Modelos Taper para descrever o afilamento de Pinus taeda na floresta de Inhamacari no posto administrativo de Machipanda

2025· other· pt· W7091633219 on OpenAlexaff

Bibliographic record

VenueZenodo (CERN European Organization for Nuclear Research) · 2025
Typeother
Languagept
FieldEnvironmental Science
TopicForest ecology and management
Canadian institutionsCanadian Parks and Wilderness Society
Fundersnot available
KeywordsPinus <genus>Water equivalentForest inventoryStatistical analysis

Abstract

fetched live from OpenAlex

O presente estudo objectivou-se em ajustar equação de perfil de tronco não segmentada para estimativas de afilamento de Pinus taeda, da floresta de Inhamacari, Província de Manica. Os dados para o presente trabalho foram colectados no povoamento de Pinus taeda, numa amostra de 100 indivíduos. Mensurou-se a altura total, comercial e as circunferências do fuste, nas posições a 0,30; 0,50; 0,70; 0,90 1,10; 1,30; 1,50; 1,70; 2,30 m; quando maior que 2,30m foi mensurada aproximadamente, de 1,00 a 1,00 m até a altura total. Com estes dados ajustou-se diferentes modelos de perfil de tronco, os de Schöepfer, Hradetzky e de Kozak et al, tendo sido selecionada a melhor equação usando o coeficiente de determinação de ajuste (R²%), erro padrão de estimativa percentual (Syx%) análise gráfica dos resíduos e análise gráfica dos perfis estimado. Os modelos de Hradetzky e o de Shöepfer obtiveram resultados satisfatórios, com alto valor de coeficiente de determinação ajustado de 99,756 % para o modelo de Hradetzky e de 98,394 % para o modelo de Shöepfer, baixo erro-padrão da estimativa de 6,94 % para Hradetzky e 7,25 % para o modelo Shöepfer e melhor distribuição de resíduos para ambos os modelos, o modelo de Kozak et al, obteve resultados baixos em comparação aos outros modelos (95,52 % de R²% e 11,50 % de Syx%). Na validação dos modelos, usou-se o teste Qui-quadrado (X2), onde seleccionou-se o modelo de Hradetzky que teve melhor ajuste, o mesmo apresentando X2calculado menor de 0,173835024 que o X2crítico de15,507, indicando melhor desempenho.

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)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.019
Threshold uncertainty score0.038

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.002
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.023
GPT teacher head0.248
Teacher spread0.225 · 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 designSimulation or modeling
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
Published2025
Admission routes1
Has abstractyes

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