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Record W177017953

GRAPH-THEORETIC MODELS OF SPREAD AND COMPETITION

2004· article· en· W177017953 on OpenAlexaboutno aff
Stephen G. Hartke, Fred S. Roberts

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldPhysics and Astronomy
TopicComplex Network Analysis Techniques
Canadian institutionsnot available
Fundersnot available
KeywordsVoter modelVertex (graph theory)Competition (biology)GraphConjectureCombinatoricsMathematicsMathematical economicsEconometricsDiscrete mathematicsStatistics
DOInot available

Abstract

fetched live from OpenAlex

We consider three graph-theoretical models of spread and competition motivated by biological applications and also by spread of opinions in social networks and fires in geographical areas. We modify the voter model of Clifford, Sudbury, Holley, and Liggett by introducing confidence levels. In the voter model, a group of voters has opinions “yes” or “no, ” interpreted as infected or non-infected in a disease application. As time progresses each voter’s opinion is influenced by his or her neighbors, with the confidence level of a voter determining how quickly the voter reconsiders his or her opinion (how quickly a person might change disease state). We show that the voter model with confidence levels always results in a uniform opinion, and we determine the probability of each uniform opinion based on the initial opinions and–what is unusual in this subject–on the structure of the underlying graph. We also consider a perfectly contagious disease, where vertices adjacent to infected vertices become infected at every discrete time step. The only intervention allowed is a limited number of vaccinations per time step. This model of disease spread is equivalent to a model of fire spread introduced by Hartnell where firefighters correspond to vaccinations.

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)0.000
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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.628
Threshold uncertainty score0.230

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.009
GPT teacher head0.231
Teacher spread0.222 · 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 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

Citations9
Published2004
Admission routes1
Has abstractyes

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