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Record W4414639553 · doi:10.1007/978-981-96-7933-1_2

Cities in a Changing World

2025· book-chapter· en· W4414639553 on OpenAlexaffabout
Daniel Hoornweg

Bibliographic record

VenueAdvances in 21st century human settlements · 2025
Typebook-chapter
Languageen
FieldEconomics, Econometrics and Finance
TopicRegional Economics and Spatial Analysis
Canadian institutionsOntario Tech University
Fundersnot available
KeywordsUrban agglomerationPopulationChinaMegacityWorld populationScale (ratio)

Abstract

fetched live from OpenAlex

In 1921, Canada was one of the first countries to reach the half-urban milestone. The rest of the world, combined, did not reach 50% urban until more than 85 years later in 2008. In the 1920s, global population surpassed 2 billion. One hundred years later, the population had quadrupled to more than 8 billion. For the last 100 years, the world’s attention was often on the emergence of more than 75 new countries. Geopolitical tensions were intense at times, leaving cities somewhat overlooked. Yet, they led global wealth and waste generation, which increased more than tenfold as the world urbanized. Cities, especially Canadian cities, drove this Great Acceleration largely through their ability to scale. A city that doubles in size more than doubles wealth, energy use, and waste generation. The increase is superlinear (~ 1.15). That same city that doubles in size can also do so with less than twice the infrastructure costs. Infrastructure costs increase sublinearly (~ 0.85). Countries and businesses do not benefit from this scaling superpower. As cities scale, they evolve into large urban agglomerations with complex adaptive systems that behave uncannily like natural systems. Cities can benefit by applying the contributions of two key researchers: Dana Meadows and her places to intervene in a (urban) system, and Elinor Ostrom’s the city as commons.

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)0.003
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: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.065
Threshold uncertainty score0.130

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.005
Science and technology studies0.0110.012
Scholarly communication0.0160.016
Open science0.0010.011
Research integrity0.0030.005
Insufficient payload (model declined to judge)0.0280.005

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 head0.022
GPT teacher head0.244
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

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
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 routes2
Has abstractyes

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