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Modelling GAP Probability for a Right Conical Canopy

2022· article· en· W4312571976 on OpenAlexaff
Rory Pittman, Baoxin Hu

Bibliographic record

VenueIGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium · 2022
Typearticle
Languageen
FieldEnvironmental Science
TopicRemote Sensing and LiDAR Applications
Canadian institutionsYork University
Fundersnot available
KeywordsConical surfaceZenithCanopyPath (computing)Crown (dentistry)Path lengthOpticsCone (formal languages)MathematicsGeometryPhysicsGeographyComputer scienceAlgorithmMaterials science

Abstract

fetched live from OpenAlex

An updated treatment of deriving the gap probability for a discontinuous canopy, specifically for right cones, is presented with respect to the framework of Li & Strahler [1]. Rather than employing numerical integration, equations of path length for a right cone have now been formulated and utilized. Three cases of ray transmission through the right cone are elucidated, corresponding to a ray passing through the side, as well as exiting through the bottom for whether half-apex angle is less than or exceeds the zenith angle of illumination. Path length histograms have been calculated for various zenith angles, for an example conical tree. Between-crown gap probabilities have been computed for various zenith angles, and conform to results obtained by Li & Strahler [1] for a right conical canopy.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.008
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.023
GPT teacher head0.263
Teacher spread0.240 · 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

Citations1
Published2022
Admission routes1
Has abstractyes

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