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Radio-frequency Interference Characterization and Mitigation for SARAS Experiment

2024· article· en· W4405676837 on OpenAlex

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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicInternet of Things and Social Network Interactions
Canadian institutionsnot available
Fundersnot available
KeywordsInterference (communication)Radio frequencyCo-channel interferenceCharacterization (materials science)Electromagnetic interferenceComputer scienceAdjacent-channel interferenceElectronic engineeringTelecommunicationsPhysicsEngineeringOpticsChannel (broadcasting)

Abstract

fetched live from OpenAlex

From the Big Bang to the present, over the last 14 billion years, the Universe has undergone a series of crucial transformations.The emergence of the first stars and galaxies -called the Cosmic Dawn (CD) -and the subsequent ionization of the Universe, referred to as the epoch of reionization (EoR), constitute one such crucial period in cosmic evolution history.This period led to the formation of further structures that evolved into the Universe we see today.Very little is known about this crucial period due to the lack of observations.The 21-cm (1420 MHz) hyperfine transition of neutral hydrogen, redshifted to a frequency range of 40 MHz to 200 MHz from these cosmic times, has been recognized as an important probe of the physics of CD/EoR.Detection of this signal will provide insights into the properties of the first sources that lit up the Universe.Worldwide, there are several experiments to detect this elusive signal: SARAS (RRI, India), EDGES (US), PRIzM (Canada), High-z (US), and LEDA (US).In addition, several more experiments are being developed and commissioned.

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: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.950
Threshold uncertainty score0.466

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 communication0.0000.001
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 head0.014
GPT teacher head0.274
Teacher spread0.260 · 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