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Record W1539713816 · doi:10.24102/ijes.v2i1.163

Prediction of TDS Variations in Tehran Groundwater by the use of neural networks

2013· article· en· W1539713816 on OpenAlexvenueno aff
Pouyan Abbasi Maedeh, Naser Mehrdadi, Gholamreza Nabi Bidhendi, Hamid Zare Abyaneh

Bibliographic record

VenueInternational Journal of Environment and Sustainability · 2013
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGroundwater and Isotope Geochemistry
Canadian institutionsnot available
Fundersnot available
KeywordsGroundwaterArtificial neural networkEnvironmental scienceWater resource managementStatisticsComputer scienceHydrology (agriculture)EconometricsArtificial intelligenceGeologyMathematicsGeotechnical engineering

Abstract

fetched live from OpenAlex

In an attempt  to examine the quality of ground water in Tehran with respect to the consumption pattern in the last ten years, five distinct neural  networks of different TDS input and output parameters were set out . It is observed that, in order to forecast with a great deal of trial and error, the tangent algorithms with the momentum-training algorithm turns out to be less erroneous in contrast to the sigmoid algorithms with Levenberg-Marquet. The maximum error occurring implies the maximum determination coefficient of 0.96. Moreover, in line with the neural network laid out in two layers, NRMSE is supposed to run out at 0.175, the average normal absolute value of error is expected to be 0.11 and the estimate is supposed to be excellently acceptable. The neural network involves the predominance of the two sulphate and chloride ions over the sodium parameter.

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)0.000
metaresearch head score (Gemma)0.001
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.034
Threshold uncertainty score0.067

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
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 head0.012
GPT teacher head0.188
Teacher spread0.176 · 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
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

Citations2
Published2013
Admission routes1
Has abstractyes

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Same venueInternational Journal of Environment and SustainabilitySame topicGroundwater and Isotope GeochemistryFrench-language works237,207