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Record W1983738395 · doi:10.4141/cjss07053

A relative weight model for soil productivity assessment

2008· article· en· W1983738395 on OpenAlexvenueno aff
Jun Zhang

Bibliographic record

VenueCanadian Journal of Soil Science · 2008
Typearticle
Languageen
FieldEnvironmental Science
TopicSoil and Land Suitability Analysis
Canadian institutionsnot available
FundersUniversity of Missouri
KeywordsLoess plateauConstraint (computer-aided design)ProductivitySoil scienceEnvironmental scienceLoessAgricultural engineeringMeasure (data warehouse)Weight functionMathematicsComputer scienceStatisticsGeologyData miningEngineering

Abstract

fetched live from OpenAlex

Soil productivity is a function of inherent factors such as topography, parent material, physical and chemical properties of the soil, and the infrastructure for irrigation and drainage. As multi-criteria evaluation methods in soil productivity assessment, the least-factor and weight methods, while popular, have limitations. The least-factor method is not accurate enough in the absence of a vital constraint factor, and the weight method leads to an inaccurate, and even incorrect result when there is a vital constraint factor. In order to overcome these limitations a new concept, relative weight, was introduced and a prototype model developed. In this prototype model, every factor has different relative weights in different soil units, thus allowing it to overcome shortcomings of the Weight method where the weights of a given factor are assumed to be equal in all soil units. This prototype model was then applied in a case study on the Loess Plateau in Northwest China. Results from the case study indicated this prototype model was more precise than either the least-factor or weight methods, and was able to avoid the invalid results of the Weight method. Key words: Soil productivity index, relative weight, multi-criteria evaluation, Loess Plateau

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 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)0.002
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.258
Threshold uncertainty score0.996

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.002
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.022
GPT teacher head0.238
Teacher spread0.216 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
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
Published2008
Admission routes1
Has abstractyes

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