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Record W2181611202 · doi:10.4095/213249

A preliminary scheme for multihierarchical rock classification for use with thematic computer-based query systems

2002· report· en· W2181611202 on OpenAlexaff
L C Struik, M Quat, Peter Davenport, A V Okulitch

Bibliographic record

Venuenot available
Typereport
Languageen
FieldComputer Science
TopicGeochemistry and Geologic Mapping
Canadian institutionsNatural Resources Canada
Fundersnot available
KeywordsThematic mapClassification schemeScheme (mathematics)Computer scienceInformation retrievalData miningGeologyCartographyGeographyMathematics

Abstract

fetched live from OpenAlex

Amultiple hierarchical system of rock classification is introduced to permit widely applicable thematic querying of bedrock geological databases. The classification is based on three main rock character-istics: composition, texture, and fabric. These characteristics permit queries that would yield results useful across scientific disciplines that rely on rock properties (e.g. agriculture, forestry, fishery). In addition, rock names in the classification are linked to the common geological genetic criteria: igneous, sedimentary, and metamorphic. These genetic assignments would yield results useful for traditional geological thinking. The linkage between a rock classification built on rock properties and fundamental rock genesis appears to pro-vide the most versatility for computer-based rock database systems. The scheme is extensible and can easily adapt to the evolution of genetic concepts.

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)0.011
metaresearch head score (Gemma)0.014
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: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.021
Threshold uncertainty score0.069

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0110.014
Meta-epidemiology (narrow)0.0010.002
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0040.005
Science and technology studies0.0030.002
Scholarly communication0.0090.008
Open science0.0040.004
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0210.011

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 head0.110
GPT teacher head0.285
Teacher spread0.175 · 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
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

Citations10
Published2002
Admission routes1
Has abstractyes

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