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Record W2022126092 · doi:10.1587/comex.2.135

DC-free LDPC convolutional codes

2013· article· en· W2022126092 on OpenAlexafffund
Emma Frontana, I.J. Fair

Bibliographic record

VenueIEICE Communications Express · 2013
Typearticle
Languageen
FieldComputer Science
TopicError Correcting Code Techniques
Canadian institutionsUniversity of Alberta
FundersNatural Sciences and Engineering Research Council of CanadaUniversity of Alberta
KeywordsConvolutional codeLow-density parity-check codeSerial concatenated convolutional codesComputer scienceAlgorithmTurbo codeDecoding methodsError detection and correctionConcatenated error correction codeSequence (biology)Forward error correctionTheoretical computer scienceBlock code

Abstract

fetched live from OpenAlex

The use of variable-length error control codes is a natural choice in transmission systems with variable-length data sequences. These systems also employ constrained sequence codes (often called line codes) to ensure that the transmitted symbol sequence is balanced and contains sufficient timing information to facilitate reliable demodulation. We outline how low density parity check convolutional codes (LDPC-CC’s) can be integrated with guided scrambling (GS) constrained sequence codes in a manner that supports variable length sequences and limits the detrimental effects of error extension during GS decoding by placing the LDPC-CC decoder before the GS decoder within the receiver. We present spectra and bit error rate results that demonstrate the advantage of this approach.

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 categoriesOpen science
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.549
Threshold uncertainty score0.996

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 science0.0090.004
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 head0.035
GPT teacher head0.289
Teacher spread0.254 · 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.

Study designTheoretical or conceptual
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
Published2013
Admission routes2
Has abstractyes

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