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Record W2786714294

Quantifying spatial variability using semivariograms

2010· book· en· W2786714294 on OpenAlexaboutno aff
Servet Ahmet Çizmeli

Bibliographic record

VenueLAP LAMBERT Academic Publishing eBooks · 2010
Typebook
Languageen
FieldEarth and Planetary Sciences
TopicRemote Sensing and Land Use
Canadian institutionsnot available
Fundersnot available
KeywordsRemote sensingScale (ratio)Image resolutionSpatial ecologySampling (signal processing)Spatial variabilityRange (aeronautics)Temporal scalesEnvironmental scienceField (mathematics)GeographyComputer scienceCartographyMathematicsArtificial intelligenceStatisticsEngineeringComputer visionEcology
DOInot available

Abstract

fetched live from OpenAlex

Natural processes occurring on the surface of the earth manifest themselves at multiple spatial scales. The amount of spatial variability revealed from remote sensing images is strongly dependent on the scale of observation. Each remote sensing image is acquired at a given spatial resolution, revealing only a limited range of the existing natural variability. The simple method presented in this book was developed for the quantification of the loss of fine-scale spatial detail in low-resolution ocean color images acquired over highly patchy coastal waters. The method can however be used for the analysis of targets other than water as well as in other types of applications like the determination of the optimum scale of observation for a field sampling campaign, the design of the spatial aspects of a new sensor, study of scale-change effects in multi-scale/multi-sensor projects and possibly in many others. The current study was accomplished in 2000 for the fulfillment of a Masters of Science degree at the Remote Sensing department of Universite de Sherbrooke under the supervision of Dr. Norm O'Neill and Jean-Claude Therriault.

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)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.005
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0050.006
Science and technology studies0.0000.000
Scholarly communication0.0030.001
Open science0.0000.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0040.002

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 head0.050
GPT teacher head0.261
Teacher spread0.211 · 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 designNot applicable
Domainnot available
GenreMethods

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
Published2010
Admission routes1
Has abstractyes

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