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Record W2062725515 · doi:10.1016/j.crma.2010.06.022

Inversion dans les tournois

2010· article· fr· W2062725515 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueComptes Rendus Mathématique · 2010
Typearticle
Languagefr
FieldComputer Science
TopicAdvanced Graph Theory Research
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsCombinatoricsMathematicsHumanitiesPhysicsPhilosophy

Abstract

fetched live from OpenAlex

Nous considérons la transformation qui inverse tous les arcs d'une partie X de l'ensemble des sommets d'un tournoi T . L' indice de T , noté <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>i</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mi>T</mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:math> , est le plus petit nombre de parties dont il faut inverser les arcs pour ramener T à un tournoi acyclique. Il apparaît que les tournois critiques et les tournois <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mo stretchy="false">(</mml:mo> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> <mml:mo stretchy="false">)</mml:mo> </mml:math> -critiques peuvent être définis au moyen d'inversions, les premiers étant d'indice un ou deux, les seconds d'indice au plus quatre. On peut voir <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>i</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mi>T</mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:math> comme le minimum de la distance de T aux tournois acycliques définis sur le même ensemble de sommets ; la distance entre deux tournois T et <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msup> <mml:mi>T</mml:mi> <mml:mo>′</mml:mo> </mml:msup> </mml:math> peut être également interprétée comme la dimension booléenne d'un graphe, celui-ci étant la somme booléenne de T et <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msup> <mml:mi>T</mml:mi> <mml:mo>′</mml:mo> </mml:msup> </mml:math> . Sur n sommets, la distance maximale vaut <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>n</mml:mi> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:math> tandis que <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>i</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mi>n</mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:math> , le maximum des indices des tournois à n sommets, satisfait les inégalités <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mfrac> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>−</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> <mml:mn>2</mml:mn> </mml:mfrac> <mml:mo>−</mml:mo> <mml:msub> <mml:mi mathvariant="normal">log</mml:mi> <mml:mn>2</mml:mn> </mml:msub> <mml:mi>n</mml:mi> <mml:mo>⩽</mml:mo> <mml:mi>i</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mi>n</mml:mi> <mml:mo stretchy="false">)</mml:mo> <mml:mo>⩽</mml:mo> <mml:mi>n</mml:mi> <mml:mo>−</mml:mo> <mml:mn>3</mml:mn> </mml:math> pour <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>n</mml:mi> <mml:mo>⩾</mml:mo> <mml:mn>4</mml:mn> </mml:math> . Soit <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi mathvariant="script">I</mml:mi> <mml:mi>m</mml:mi> <mml:mrow> <mml:mo>&lt;</mml:mo> <mml:mi>ω</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> (resp. <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi mathvariant="script">I</mml:mi> <mml:mi>m</mml:mi> <mml:mrow> <mml:mo>⩽</mml:mo> <mml:mi>ω</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> ), la classe des tournois finis (resp. au plus dénombrables) T tels que <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>i</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:mi>T</mml:mi> <mml:mo stretchy="false">)</mml:mo> <mml:mo>⩽</mml:mo> <mml:mi>m</mml:mi> </mml:math> . La classe <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi mathvariant="script">I</mml:mi> <mml:mi>m</mml:mi> <mml:mrow> <mml:mo>&lt;</mml:mo> <mml:mi>ω</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> est déterminée par un nombre fini d'obstructions ; nous donnons une description morphologique des éléments de <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi mathvariant="script">I</mml:mi> <mml:mn>1</mml:mn> <mml:mrow> <mml:mo>&lt;</mml:mo> <mml:mi>ω</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> et décrivons ses obstructions. Nous décrivons aussi un tournoi universel de la classe <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msubsup> <mml:mi mathvariant="script">I</mml:mi> <mml:mi>m</mml:mi> <mml:mrow> <mml:mo>⩽</mml:mo> <mml:mi>ω</mml:mi> </mml:mrow> </mml:msubsup> </mml:math> .

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.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.525
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0020.001
Research integrity0.0000.002
Insufficient payload (model declined to judge)0.0020.002

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 head0.034
GPT teacher head0.295
Teacher spread0.261 · 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