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Cited by 549

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Identifying Hierarchical Structure in Sequences: A linear-time algorithm

Open access
Nevill-Manning, C. G., Witten, I. H.·1997·Journal of Artificial Intelligence Research

Abstract

SEQUITUR is an algorithm that infers a hierarchical structure from a sequence of discrete symbols by replacing repeated phrases with a grammatical rule that generates the phrase, and continuing this process recursively. The result is a hierarchical representation of the original sequence, which offers insights into its lexical structure. The algorithm is driven by two constraints that reduce the size of the grammar, and produce structure as a by-product. SEQUITUR breaks new ground by operating incrementally. Moreover, the method's simple structure permits a proof that it operates in space and time that is linear in the size of the input. Our implementation can process 50,000 symbols per second and has been applied to an extensive range of real world sequences.

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Metadata

Authors
Nevill-Manning, C. G., & Witten, I. H.
Venue
Journal of Artificial Intelligence Research
Published
1997-09-01
Volume
7
Pages
67-82
ISSN
1076-9757 (ISSN-L)
OpenAlex
W2105686649
Cited by
549
References
17
FWCI
7.61
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Identifying Hierarchical Structure in Sequences: A linear-time algorithm. https://app.cochat.ai/papers/10.1613/jair.374
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Nevill-Manning, C. G., & Witten, I. H. (1997). Identifying Hierarchical Structure in Sequences: A linear-time algorithm. Journal of Artificial Intelligence Research. https://doi.org/10.1613/jair.374

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