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Record W2964269336 · doi:10.1090/tran/7641

From dimers to webs

2018· article· en· W2964269336 on OpenAlexaff
Chris Fraser, Thomas Lam, Ian Le

Bibliographic record

VenueTransactions of the American Mathematical Society · 2018
Typearticle
Languageen
FieldMedicine
TopicAdvanced Neuroimaging Techniques and Applications
Canadian institutionsPerimeter Institute
FundersNational Science Foundation
KeywordsAlgorithmAnnotationComputer scienceArtificial intelligenceType (biology)MathematicsBiology

Abstract

fetched live from OpenAlex

We formulate a higher-rank version of the boundary measurement map for weighted planar bipartite networks in the disk. It sends a network to a linear combination of S L r \mathrm {SL}_r - webs and is built upon the r r -fold dimer model on the network. When r r equals 1, our map is a reformulation of Postnikov’s boundary measurement used to coordinatize positroid strata. When r r equals 2 or 3, it is a reformulation of the S L 2 \mathrm {SL}_2 - and S L 3 \mathrm {SL}_3 - web immanants defined by the second author. The basic result is that the higher-rank map factors through Postnikov’s map. As an application, we deduce generators and relations for the space of S L r \mathrm {SL}_r -webs, re-proving a result of Cautis-Kamnitzer-Morrison. We establish compatibility between our map and restriction to positroid strata and thus between webs and total positivity.

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)0.001
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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.053
Threshold uncertainty score0.176

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0020.002
Science and technology studies0.0030.003
Scholarly communication0.0060.012
Open science0.0020.005
Research integrity0.0030.003
Insufficient payload (model declined to judge)0.0530.015

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 head0.042
GPT teacher head0.358
Teacher spread0.316 · 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 designTheoretical or conceptual
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

Citations17
Published2018
Admission routes1
Has abstractyes

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Same venueTransactions of the American Mathematical SocietySame topicAdvanced Neuroimaging Techniques and ApplicationsFrench-language works237,207