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Record W4412769435 · doi:10.5705/ss.202024.0339

Nonparametric Spatial Modeling towards the Mode

2025· article· en· W4412769435 on OpenAlexfundno aff
Tao Wang, Weixin Yao

Bibliographic record

VenueStatistica Sinica · 2025
Typearticle
Languageen
FieldDecision Sciences
Topicdemographic modeling and climate adaptation
Canadian institutionsnot available
FundersSocial Sciences and Humanities Research Council of CanadaNatural Sciences and Engineering Research Council of CanadaNational Science Foundation
KeywordsNonparametric statisticsMode (computer interface)Computer scienceEconometricsArtificial intelligenceStatisticsMathematicsHuman–computer interaction

Abstract

fetched live from OpenAlex

Existing models for spatial data analysis typically rely on mean or quantile regression to model the association between a dependent variable and covariates.We in this paper propose a novel spatial modal regression by assuming that the conditional mode of the response Y given covariates X follows a nonparamet-and i ∈ Z N .The suggested spatial modal regression can be utilized to capture the "most likely" effect and may reveal new interesting data structures that are possibly missed by the conditional mean or quantiles, especially in cases of asymmetric data distributions.We derive the asymptotic distributions for the resulting modal estimators with appropriate choices of bandwidths.To numerically estimate the developed model, we recommend a modified modal expectation-maximization (MEM) algorithm with the assistance of a Gaussian kernel.Numerical examples are presented to demonstrate the favorable finite sample performance of the estimators.We also generalize the propounded spatial modal regression to an additive sum form to offer a versatile solution to handle high-dimensional datasets.

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)0.009
metaresearch head score (Gemma)0.026
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.009
Threshold uncertainty score0.046

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0090.026
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.002
Science and technology studies0.0000.002
Scholarly communication0.0020.003
Open science0.0030.003
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0030.001

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 head0.159
GPT teacher head0.440
Teacher spread0.281 · 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 designTheoretical or conceptual
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
Published2025
Admission routes1
Has abstractyes

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