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Record W2076832715 · doi:10.1145/1998196.1998254

Kinetic mesh refinement in 2D

2011· article· en· W2076832715 on OpenAlexaff
Umut A. Acar, Benoît Hudson, Duru Türkoğlu

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicComputational Geometry and Mesh Generation
Canadian institutionsAutodesk (Canada)
Fundersnot available
KeywordsDelaunay triangulationPolygon meshDegree (music)MathematicsAlgebraic numberTriangulationPlanarPoint (geometry)CombinatoricsComputationBinary logarithmAlgorithmComputer scienceGeometryMathematical analysisPhysicsComputer graphics (images)

Abstract

fetched live from OpenAlex

We provide a kinetic data structure (KDS) to the planar kinetic mesh refinement problem, which concerns computation of meshes of continuously moving points. Our KDS computes the Delaunay triangulation of a size-optimal well-spaced superset of a set of moving points with algebraic trajectories of constant degree. Our KDS is compact, requiring linear space in the size of the output. It is local, using a point in O(log Delta) certificates. It is responsive, repairing itself in O(log Delta) time per event. It is efficient, processing O(n2 log3 Delta) events in the worst case; this is optimal up to a polylogarithmic factor. Also, our KDS is dynamic, responding to point insertions and deletions in O(log Delta) time. In our bounds Delta stands for the geometric spread, the ratio of the diameter to the closest pair distance. To the best of our knowledge, this is the first KDS for mesh refinement.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.005
Threshold uncertainty score0.018

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0020.003
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0050.002

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 head0.039
GPT teacher head0.238
Teacher spread0.199 · 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
GenreMethods

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

Citations5
Published2011
Admission routes1
Has abstractyes

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