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Smooth Feedback Construction Over Spherical Polytopes

2020· article· en· W3046873695 on OpenAlexaff
Xiao Tan, Soulaimane Berkane, Dimos V. Dimarogonas

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicControl and Dynamics of Mobile Robots
Canadian institutionsUniversité du Québec en Outaouais
Fundersnot available
KeywordsPolytopeUnit sphereEuclidean geometryEuclidean spacePolyhedronCombinatoricsMathematicsSpherical trigonometryConvex polytopeGreat circlePolytope modelComputer scienceRegular polygonGeometryConvex set

Abstract

fetched live from OpenAlex

In this work, we investigate the partitioning and control problems on the 2− sphere, the set of all unit vectors in ${{\mathbb{R}}^3}$. Specifically, we present a spherical-polytope-based partitioning for the 2− sphere and then propose a novel approach to construct a feedback control law over a given set of spherical polytopes. Instead of designing the control law directly on the sphere, we propose a smooth atlas on it based on the gnomonic projection. We further show that the gnomonic map projects the spherical polytopes to Euclidean polytopes. Moreover, the kinematics evolving on a spherical polytope can be transformed via feedback into a single integrator in the Euclidean space. Thanks to these properties, control algorithms that were originally developed for polytopes in Euclidean spaces can now be applied to spherical polytopes on the 2 –sphere. We conclude this paper by showing a control construction on the sphere with cluttered obstacles.

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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.634
Threshold uncertainty score0.873

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)0.0010.000

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 head0.006
GPT teacher head0.183
Teacher spread0.177 · 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 designSimulation or modeling
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

Citations0
Published2020
Admission routes1
Has abstractyes

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