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Record W1636587464 · doi:10.48550/arxiv.math/0603068

Minimum Area Venn Diagrams Whose Curves are Polyominoes

2006· preprint· en· W1636587464 on OpenAlex
Stirling Chow, Frank Ruskey

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

VenueArXiv.org · 2006
Typepreprint
Languageen
FieldComputer Science
TopicTopological and Geometric Data Analysis
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsVenn diagramPolyominoSimple (philosophy)MathematicsSet (abstract data type)Intersection (aeronautics)DiagramDiscrete mathematicsCombinatoricsJordan curve theoremComputer scienceGeometry

Abstract

fetched live from OpenAlex

Venn diagrams are a graphical way to represent a set system. Each of the n sets is represented by a simple closed curve. The n curves subdivide the plane into 2^n open connected regions, each of which represents the intersection of its containing curves' sets. For example, two overlapping circles can divide the plane into 4 regions representing {}, A, B, and A intersect B. Three overlapping circles can also be used to represent the 2^3 ways in which 3 sets can intersect. One of the primary questions related to Venn diagrams concerns which shapes can be used for the curves. The previous examples used 2 and 3 circles, but a 4-set Venn diagram cannot be represented by 4 circles; instead, ellipses must be used. In this paper, we consider Venn diagrams whose curves are the outlines of polyominoes. In particular, we give examples of Venn diagrams where the curves are rotations and translations of a single polyomino, so-called congruent polyVenn diagrams. We also consider the problem of area-minimization (relative to a scaling factor) and present examples of Venn polyominoes which minimize area according to various constraints. At present, these examples do not generalize and so we develop an algorithm that comes close to minimizing the area. The algorithm is simple and utilizes symmetric chain decompositions of the Boolean lattice. We also provide asymptotic results that relate the area required by the algorithm's diagrams to the theoretical minimum area. We conclude by presenting some open problems related to Venn polyominoes and other shape-constrained Venn diagrams.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.058
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0030.004
Research integrity0.0000.001
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 head0.054
GPT teacher head0.261
Teacher spread0.207 · 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