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Unified Direct Method for Land Subdivision: Circular Sides Permitted

2008· article· en· W2171433553 on OpenAlex

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

VenueJournal of Surveying Engineering · 2008
Typearticle
Languageen
FieldEngineering
Topic3D Modeling in Geospatial Applications
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsSubdivisionPolygon (computer graphics)SolverComputer scienceLine (geometry)Cartesian coordinate systemIntersection (aeronautics)Function (biology)AlgorithmMathematical optimizationGeometryMathematicsEngineeringGeographyCartography

Abstract

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Land subdivision is an important activity in surveying engineering. Given a polygon-shaped area of land, the objective is normally to divide the land into two areas with specific requirements. Existing methods for land subdivision are applicable only when the sides of the land are all straight lines. This paper presents a unified direct method that can handle tracts of land with one or more circular sides. The ends of the partitioning line are assumed to connect straight and circular sides. Using a Cartesian coordinate system, three formulas representing the foundation of the proposed method were developed: (1) the function of the circular side; (2) the intersection between the partitioning line and the circular side; and (3) the area of the circular segment which is cut by the partitioning line. The resulting nonlinear problem was solved using the Excel-based, Premium Solver software. Any partitioning case can be handled by a simple change to the worksheet. Tracts of land with all-straight sides are special cases that correspond to a very large radius of the circular side. In addition, the proposed method can handle optimization objectives that cannot be addressed by existing methods, such as minimizing the difference between the frontages of the partitioned parts.

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)0.001
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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.583
Threshold uncertainty score0.666

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
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 head0.033
GPT teacher head0.254
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