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A Layered CPA Decoder for Reed-Muller Codes

2024· article· en· W4409156414 on OpenAlexaff
Jiajie Li, Warren J. Gross

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicError Correcting Code Techniques
Canadian institutionsMcGill University
Fundersnot available
KeywordsComputer scienceDecoding methodsReed–Muller codeComputer networkArithmeticTelecommunicationsConcatenated error correction codeBlock codeMathematics

Abstract

fetched live from OpenAlex

When decoding low-rate and short-length Reed-Muller (RM) codes, the recently proposed projection-aggregation (PA) decoder yields near maximum-likelihood decoding performance. However, the practicability of the PA decoder's implementation is nevertheless negatively impacted by its high computational cost. It has been demonstrated that this decoder is closely connected to the belief propagation (BP) decoder based on the parity-check matrix. Techniques inspired by the layered decoding and the broadcast modification for the BP decoder used by the low-density parity-check codes are proposed in this work. The proposed broadcast modification reduces the computational overhead induced by the proposed layered decoding for the collapsed PA (CPA) decoder. The proposed layered and broadcast-based CPA decoder has negligible degradation in decoding performance, and it produces a 47% reduction in the average complexity at <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$E_{b}/N_{0}=2.5\text{dP}$</tex>, when decoding RM(8, 3) codes.

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 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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.714
Threshold uncertainty score0.410

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 science0.0010.000
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 head0.025
GPT teacher head0.314
Teacher spread0.289 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreMethods

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
Published2024
Admission routes1
Has abstractyes

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