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Record W2100204172 · doi:10.1109/dcc.2008.101

All-Match LZ77 Bit Recycling

2008· article· en· W2100204172 on OpenAlexaff
Danny Dub�, Vincent Beaudoin

Bibliographic record

VenueDCC · 2008
Typearticle
Languageen
FieldComputer Science
TopicAlgorithms and Data Compression
Canadian institutionsUniversité Laval
Fundersnot available
KeywordsComputer scienceRedundancy (engineering)Multiplicity (mathematics)ExploitData compressionAlgorithmComputer hardwareTheoretical computer scienceArithmeticMathematicsOperating systemComputer security

Abstract

fetched live from OpenAlex

Summary form only given. Recently, a technique called bit recycling (BR) was introduced to help reduce the redundancy caused by the multiplicity of encodings. It has been used to improve LZ77 compression, which is especially prone to allow for the existence of numerous different compressed files for some given original file F. The multiplicity of encodings causes redundancy. Instead of trying to eliminate or reduce the multiplicity itself, BR exploits it and extracts a compensation from it. It uses implicit communication that happens when, at some point in the compression process, we have that: 1. the compressor C has more than one option; and 2. the decompressor D is able to recognize that situation. The mere fact that C has the liberty to select one among many options allows it to implicitly send bits to D. The particularity of BR is that it avoids storing as many bits as possible in the compressed file by implicitly sending them instead. Previous work presented a technique that recycles bits based on the existence of multiple longest matches, called longest-match BR (LMBR). This work presents a more general, and more powerful, technique, called all-match BR (AMBR) that exploits shorter matches.

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)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation 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: none
Teacher disagreement score0.251
Threshold uncertainty score0.841

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0020.003
Science and technology studies0.0010.001
Scholarly communication0.0020.003
Open science0.0020.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.2510.142

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 head0.043
GPT teacher head0.264
Teacher spread0.221 · 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 designBench or experimental
Domainnot available
GenreEmpirical

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
Published2008
Admission routes1
Has abstractyes

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