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Record W2461148994

Compression and decompression of quadrilateral meshes.

2003· article· en· W2461148994 on OpenAlexaboutno aff
Quanbin. Jing

Bibliographic record

VenueScholarship at UWindsor (University of Windsor) · 2003
Typearticle
Languageen
FieldMedicine
TopicSpine and Intervertebral Disc Pathology
Canadian institutionsnot available
Fundersnot available
KeywordsCompression (physics)QuadrilateralPolygon meshComputer scienceComputer graphics (images)Structural engineeringEngineeringMaterials scienceComposite materialFinite element method
DOInot available

Abstract

fetched live from OpenAlex

3D Quad mesh plays an important role in various engineering fields. Due to improved design and model acquisition tools, as well as the need for higher accuracy, the number and complexity of these models are growing more rapidly than network bandwidth. Therefore, reducing the amount of transmission by compressing the 3D quad model is imperative. A mesh may be represented by its vertex data and its connectivity. Vertex data comprise coordinates of all the vertices and optionally the vertex colors and the associated normal vectors and textures. Connectivity captures the incidence relation between the quads of the mesh and their bounding vertices. Traditionally, the quad mesh connectivity encoding process involves triangulation and triangle mesh compression; this may introduce additional cost. Quad mesh can be compressed and decompressed linearly without triangulation. We introduce it in terms of a simple data structure, which we call the OE Table. It represents the connectivity of any manifold quad mesh as two tables, V and OE. V[i] is an integer reference to a vertex. OE[i] is an integer reference to an edge. Spirale Reversi decompression of quad mesh will be described in detail. It is possible to combine vertex data compression techniques with the connectivity compression. A lower upper bound 2.67 bits/quad for coding quad mesh connectivity is presented. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2003 .J56. Source: Masters Abstracts International, Volume: 42-03, page: 0964. Adviser: Asish Mukopadhyay. Thesis (M.Sc.)--University of Windsor (Canada), 2003.

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)0.000
metaresearch head score (Gemma)0.002
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: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.011
Threshold uncertainty score0.037

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0110.002

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 head0.023
GPT teacher head0.257
Teacher spread0.234 · 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

Citations0
Published2003
Admission routes1
Has abstractyes

Explore more

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