Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 504

The DOI matches its Crossref record.

Enumerative source encoding

Cover, T.·1973·IEEE Transactions on Information Theory

Abstract

LetSbe a given subset of binary n-sequences. We provide an explicit scheme for calculating the index of any sequence inSaccording to its position in the lexicographic ordering ofS. A simple inverse algorithm is also given. Particularly nice formulas arise whenSis the set of alln-sequences of weightkand also whenSis the set of all sequences having a given empirical Markov property. Schalkwijk and Lynch have investigated the former case. The envisioned use of this indexing scheme is to transmit or store the index rather than the sequence, thus resulting in a data compression of(\log\midS\mid)/n.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1109/tit.1973.1054929

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 504

Metadata

Authors
Cover, T.
Venue
IEEE Transactions on Information Theory
Published
1973-01
Volume
19
Issue
1
Pages
73-77
ISSN
  • 0018-9448 (ISSN-L)
  • 1557-9654
OpenAlex
W2034323860
Cited by
504
References
0
FWCI
8.03
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Enumerative source encoding. https://app.cochat.ai/papers/10.1109/tit.1973.1054929
The paper
Cover, T. (1973). Enumerative source encoding. IEEE Transactions on Information Theory. https://doi.org/10.1109/tit.1973.1054929

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.