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Characterizing the Performance of the First CHIME/FRB Outrigger as a Standalone Interferometer

2024· article· en· W4393062325 on OpenAlex
Mattias Lazda

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicSeismic and Structural Analysis of Tall Buildings
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsOutriggerInterferometryComputer sciencePhysicsOpticsStructural engineeringEngineering

Abstract

fetched live from OpenAlex

The Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) outrigger project is an upcoming VLBI experiment designed to localize one-off and repeating fast radio bursts to 50 milliarcsecond accuracy. To achieve this goal, three new radio telescopes – the outriggers – are currently being commissioned across Canada and the USA. The CHIME telescope is a non-steerable phased array operating from 400 – 800 MHz and has a ~200 sq. degree instantaneous field of view. To maximize the overlap between the field of view of CHIME and its outriggers, each telescope has adopted a near-identical physical design to that of the CHIME telescope. The first of these three telescopes, the k'ni?atn k'1 stk'masqt outrigger (abbr. KKO), is approximately 1/16th the size of CHIME and has been in operation since June 2022.

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.

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: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.424
Threshold uncertainty score0.363

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)0.0000.000

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 head0.005
GPT teacher head0.187
Teacher spread0.182 · 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