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Record W25666867

Practical investigations of complex systems

2007· dissertation· en· W25666867 on OpenAlexaff
Nicolas Brodu

Bibliographic record

VenueSpectrum Research Repository (Concordia University) · 2007
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicComplex Network Analysis Techniques
Canadian institutionsConcordia University
Fundersnot available
KeywordsComputer scienceField (mathematics)Domain (mathematical analysis)Data scienceSet (abstract data type)Context (archaeology)Complex systemManagement scienceArtificial intelligenceEngineeringMathematicsProgramming language
DOInot available

Abstract

fetched live from OpenAlex

What's currently called Complexity Science suffers from an unfortunate lack of consensus as to what is meant by these terms. A review of the common notions shows a field mined by controversies, with as many frameworks for the study of Complex Systems as there are authors who propose a generic one. This document is thus not an attempt to create yet another framework, but rather an application of the traditional scientific methodology to some Complex Systems in the domain of Computer Science. It is a demonstration that even for this field, the concrete application of predictive experiments set up to challenge the extent of the main notions proves fruitful. Moreover the tools and methods that are created along the way because they were necessary to carry on experiments represent by themselves an opportunity for making progress in the domain. This is precisely the case in the present Computer Science context in the form of new algorithms, that were successfully applied to the main experiments. Hence this work is both a call for a more classical and practical approach to Complexity, and a concrete application example for that call.

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)0.012
metaresearch head score (Gemma)0.046
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: Other · Consensus signal: none
Teacher disagreement score0.013
Threshold uncertainty score0.064

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0120.046
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0020.011
Scholarly communication0.0040.009
Open science0.0020.005
Research integrity0.0020.005
Insufficient payload (model declined to judge)0.0130.002

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 head0.063
GPT teacher head0.361
Teacher spread0.297 · 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
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

Citations3
Published2007
Admission routes1
Has abstractyes

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