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Record W2111271567 · doi:10.1109/dcc.1994.305917

Adaptive variable-to-variable length codes

2002· article· en· W2111271567 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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAlgorithms and Data Compression
Canadian institutionsBell (Canada)
Fundersnot available
KeywordsComputer scienceVariable (mathematics)Tree (set theory)Source codeAlgorithmCode (set theory)Variable-length codeTheoretical computer scienceMathematicsProgramming languageCombinatoricsDecoding methods

Abstract

fetched live from OpenAlex

In the last several years, adaptive codes for fixed-to-variable length and variable-to-fixed length codes have been described. This paper examines two methods for implementing adaptive variable-to-variable length codes, which have not been considered before due to the difficulty of designing optimum variable-to-variable length codes. The two adaptive methods are based on dual-tree codes, where a source tree parses the input sequence into source words and a code tree assigns each source word a code word. One adaptive method uses a single dual-tree code, and uses an algorithm which requires a complex logic circuit to adjust the shape of the source and code trees. The second method, called state-tree codes, uses a fixed pool of dual-tree codes and a state machine to select which dual-tree code is used. State-tree codes require more memory than the first method, but only a trivial logic circuit is needed to implement the codes, which will result in a very fast circuit.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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 categoriesInsufficient payload (model declined to judge)
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 score0.819
Threshold uncertainty score1.000

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 science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.001

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 head0.026
GPT teacher head0.222
Teacher spread0.195 · 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

Quick stats

Citations5
Published2002
Admission routes1
Has abstractyes

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