The hypergraph of θ-classes and θ-graphs of partial cubes.
Bibliographic record
Abstract
Given a partial cube G, the Θ-graph of G has Θ-classes of G as its vertices, and two vertices in it are adjacent if the corresponding Θ-classes meet in a vertex of G. We present a counter-example to the question from [8] whether Θ-graphs of graphs of acyclic cubical complexes are always dually chordal graphs. On a positive side, we show that in the class of ACC pexpansion graphs each Θ-graph is both a dually chordal and a chordal graph. In the proof a fundamental characterization of α-acyclic hypergraphs is combined with techniques from metric graph theory. Along the way, we also introduce a new, weaker version of simplicial elimination scheme which yields yet another characterization of chordal graphs.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".