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Record W4417491674 · doi:10.1098/rsbm.2025.0013

Nicholas Kaiser

2025· article· en· W4417491674 on OpenAlexaff
J. A. Peacock, J. Richard Bond, Joseph Silk

Bibliographic record

VenueBiographical Memoirs of Fellows of the Royal Society · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicGalaxies: Formation, Evolution, Phenomena
Canadian institutionsUniversity of Toronto
FundersUniversity of EdinburghUniversity of OxfordRoyal Astronomical SocietyCalifornia Institute of Technology
KeywordsGalaxyDark matterMeasure (data warehouse)GravitationDark energyCluster analysisCosmologyWeak gravitational lensing

Abstract

fetched live from OpenAlex

Abstract Nick Kaiser was a statistical cosmologist of rare creativity, who wrote many deeply influential papers concerning the study of large-scale inhomogeneities in the Universe. His most important achievements were: explaining the biased amplitude of galaxy clustering via the enhanced correlations of rare massive haloes of dark matter; diagnosing how the peculiar velocities associated with structure formation would generate anisotropic redshift-space distortions in galaxy clustering; and analysing the effect of weak gravitational lensing, in which small coherent distortions of the shape of galaxy images could be used to map the dark matter distribution and measure its statistical properties. These theoretical ideas are at the heart of new generations of large galaxy surveys, which aim to use Nick’s methods to probe fundamental aspects of the cosmological model, particularly measuring whether the vacuum density evolves with time, and testing whether Einstein’s relativistic theory of gravity is correct on cosmological scales.

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)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.052
Threshold uncertainty score0.174

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0020.001
Scholarly communication0.0020.002
Open science0.0010.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0520.016

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 head0.005
GPT teacher head0.211
Teacher spread0.206 · 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 designNot applicable
Domainnot available
GenreOther

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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