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Record W2127632365 · doi:10.5120/13846-1678

Semi-Adaptive Substitution Coder for Lossless Text Compression

2013· article· en· W2127632365 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

VenueInternational Journal of Computer Applications · 2013
Typearticle
Languageen
FieldComputer Science
TopicAlgorithms and Data Compression
Canadian institutionsnot available
Fundersnot available
KeywordsComputer scienceLossless compressionSubstitution (logic)Compression (physics)Data compressionTheoretical computer scienceAlgorithmProgramming languageThermodynamics

Abstract

fetched live from OpenAlex

In this paper, a new text transformation technique called Semi-Adaptive Substitution Coder for Lossless Text Compression is proposed. The rapid advantage of this Substitution Coder is that it substitutes the codewords by referring the reference of the word's position in the dictionary to expedite the dictionary mapping and also codewords are shorter than words and, thus, the same amount of text will require less space. In general, text transformation needs an external dictionary to store the frequently used words. To preserve this transformation method in a healthy way, a semiadaptive dictionary is used and therefore which reduces the expenditure of memory overhead and speeds up the transformation because of the smaller size dictionary. This new transformation algorithm is implemented and tested using Calgary Corpus and Large Corpus. In this implementation Semi-Adaptive Substitution Coder in connection with a popular bzip2 and commonly used Gzip compressors improve the compression performance by about 7-9% on large files.

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: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.782
Threshold uncertainty score0.456

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 science0.0020.000
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 head0.017
GPT teacher head0.281
Teacher spread0.264 · 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