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Record W2990722555 · doi:10.3917/re1.085.0075

Un état de l’art de l’exploitation minière sous-marine

2017· article· fr· W2990722555 on OpenAlexaboutno aff
Julien Denègre

Bibliographic record

VenueAnnales des Mines - Responsabilité et environnement · 2017
Typearticle
Languagefr
FieldEngineering
TopicMining and Resource Management
Canadian institutionsnot available
Fundersnot available
KeywordsHumanitiesPolitical scienceArt

Abstract

fetched live from OpenAlex

À l’exception de l’exploitation de diamants par 150 mètres de profondeur, aucune opération de longue durée n’a encore été menée à bien en matière de collecte à des fins commerciales de minéraux solides à des profondeurs supérieures à - 200 mètres. La compagnie canadienne Nautilus Minerals a obtenu sa première concession minière en janvier 2011 pour des gisements de sulfures polymétalliques, en Papouasie-Nouvelle-Guinée. Elle travaille à la mise au point d’un système d’exploitation de ces gisements, dont les premiers essais devraient avoir lieu en 2019. La France dispose par ailleurs d’un ensemble cohérent d’atouts, de ressources, de compétences et d’expertises uniques au monde en matière de fonds sous-marins et d’exploitation minière. Ces acteurs sont regroupés au sein d’un groupe de travail dédié du Cluster Maritime Français (CMF). L’État a mis en place un concours mondial de l’innovation consacré à la valorisation des richesses marines, qui a permis de financer les projets les plus innovants et de fédérer plusieurs industriels français autour des deux consortiums (MELODI et FONASURF) dédiés aux développements d’outils d’exploration et d’exploitation.

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)0.003
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: Review · Consensus signal: none
Teacher disagreement score0.035
Threshold uncertainty score0.069

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0020.002
Science and technology studies0.0040.004
Scholarly communication0.0070.005
Open science0.0010.003
Research integrity0.0020.003
Insufficient payload (model declined to judge)0.0190.005

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 head0.259
Teacher spread0.237 · 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
GenreReview

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
Published2017
Admission routes1
Has abstractyes

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