MétaCan
Menu
Back to cohort
Record W3143886733

1 - Segmentation bathymétrique d'images multispectrales SPOT

2001· article· fr· W3143886733 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueTraitement du signal · 2001
Typearticle
Languagefr
FieldEngineering
TopicRemote-Sensing Image Classification
Canadian institutionsnot available
Fundersnot available
KeywordsBathymetrySegmentationInversion (geology)Computer scienceContext (archaeology)HydrographyArtificial intelligenceScale (ratio)Pattern recognition (psychology)Image segmentationBathymetric chartMarkov processData miningGeographyGeologyCartographyMathematicsStatisticsGeomorphology
DOInot available

Abstract

fetched live from OpenAlex

This paper addresses the analysis of multispectral SPOT images in order to update nautical charts and to control nautical data. We have developed a segmentation approach based on two Markovian modeling steps. The first one is based on Markov chain (1D) modeling, whereas the second step involves a hierarchical process, Markovian in scale. Each of them includes the unsupervised estimation of the parameters. The model parameters are automatically calibrated whereas the noise parameters are estimated in the context of generalized distribution mixtures. An adaptive bathymetric inversion model is then derived in order to recover the water depth near the coasts. This bathymetric estimation has been validated on real data, for which control points are available that correspond to bathymetric measures supplied by previous hydrographic campaigns.

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.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.574
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
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 head0.021
GPT teacher head0.244
Teacher spread0.223 · 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