Journal profile · Computer Science, Information Systems
Information Processing Letters
ISSN 0020-0190 · eISSN 1872-6119 · Elsevier · NETHERLANDS · Monthly
Information Processing Letters: CAS Zone 4 · Computer Science (2025 upgraded edition); impact factor 0.62; hybrid open access; APC about USD 2,590; review about 239 days (submission to acceptance, publisher); community-reported acceptance: about 50%; 40 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Information Processing Letters is published by Elsevier and is in Zone 4 of Computer Science in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Advanced Graph Theory Research, Complexity and Algorithms in Graphs and Algorithms and Data Compression, together about 26.9% of its articles. Its main subfields are Computational Theory and Mathematics and Computer Networks and Communications. (generated from OpenAlex topic counts and CAS ranking data)
Devoted to the Rapid Publication of Short Contributions to Information ProcessingInformation Processing Letters invites submission of original research articles that focus on fundamental aspects of information processing and computing. This naturally includes work in the broadly understood field of theoretical computer science; although papers in all areas of scientific inquiry will be given consideration, provided that they describe research contributions credibly motivated by applications to computing and involve rigorous methodology. High quality experimental papers that address topics of sufficiently broad interest may also be considered.Since its inception in 1971, Information Processing Letters has served as a forum for timely dissemination of short, concise and focused research contributions. Continuing with this tradition, and to expedite the reviewing process, manuscripts are generally limited in length to nine pages when they appear in print.More detailed information about the topics of interest and submission format can be found in the Guide for Authors.
From the journal's Aims & Scope
Research area (LetPub): Computer Science, Information Systems
Main research topics OpenAlex counts of recent articles; shares are approximate
- Advanced Graph Theory ResearchComputer Science10.7%
- Complexity and Algorithms in GraphsComputer Science8.1%
- Algorithms and Data CompressionComputer Science8%
- semigroups and automata theoryComputer Science6.6%
- Optimization and Search ProblemsComputer Science5.4%
- Computational Geometry and Mesh GenerationComputer Science5.2%
- Interconnection Networks and SystemsComputer Science4.9%
- Logic, programming, and type systemsComputer Science4%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Computer Science Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 4 |
| Minor | Computer Science, Information Systems | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Computer Science Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 4 |
| Minor | Computer Science, Information Systems | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Computer Science Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 4 |
| Minor | Computer Science, Information Systems | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 0.62LetPub ·
- Impact factor (publisher)
- 0.6Publisher website ·
- CiteScore 2026-06
- 2LetPub ·
- CiteScore (publisher)
- 2Publisher website ·
- SJR 2026-06
- 0.35LetPub ·
- SNIP 2026-06
- 0.78LetPub ·
- h-index
- 69LetPub ·
- h-index
- 146OpenAlex ·
- i10-index
- 3,520OpenAlex ·
- 2-year mean citedness
- 0.6OpenAlex ·
- Self-citation rate
- 0%LetPub ·
- Share of gold OA articles
- 28.09%LetPub ·
Volume
- Articles per year
- 34LetPub ·
Articles by year OpenAlex count · 8,752 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 36 | 18 | 2 |
| 2025 | 40 | 22 | 19 |
| 2024 | 64 | 33 | 63 |
| 2023 | 86 | 35 | 184 |
| 2022 | 79 | 31 | 234 |
| 2021 | 103 | 45 | 393 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Publisher-reported review time from the journal's website
239 dayssubmission to acceptance · community reports about 7.5 months
The publisher's own definition applies; dates from this journal's articles in the last 24 months are not available yet, so the publisher's figure is used.
Figures by source
- Average review time (community reports)
- about 7.5 monthsLetPub ·
- Average acceptance (community reports)
- 50%LetPub ·
- Submission to first decision
- 2 daysPublisher website ·
- First decision after review
- 94 daysPublisher website ·
- Submission to acceptance
- 239 daysPublisher website ·
- Acceptance to publication
- 4 daysPublisher website ·
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 2,590 / EUR 2,420 / GBP 2,070 / JPY 321,240 | — | — | |
| Publisher website | USD 2,880 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Policy excerpts from the journal's websiteOpen access
- Open access Open Access
Article Publishing Charge (APC): USD 2,880 (excluding taxes). The amount you pay may be reduced during submission if applicable.Review this journal’s open access policy.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Elsevier
- Country or region
- NETHERLANDS
- Language
- English
- Frequency
- Monthly
- ISSN
- 0020-0190
- Electronic ISSN
- 1872-6119
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about Information Processing Letters
What CAS zone is Information Processing Letters in?
In the 2025 upgraded edition of the CAS Journal Ranking, Information Processing Letters is in Zone 4 of Computer Science, and in Zone 4 of the minor category Computer Science, Information Systems. In the 2026 Xinrui edition it is in Zone 4 of Computer Science. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Information Processing Letters?
The latest impact factor listed by LetPub is 0.62; CiteScore 2, h-index 146.
How long does peer review take at Information Processing Letters?
The publisher reports about 239 days (submission to acceptance); authors report an average review time of about 7.5 months; the community-reported acceptance is “about 50%”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index Information Processing Letters?
According to LetPub and DOAJ records, Information Processing Letters is indexed in SCIE and Scopus.
Is Information Processing Letters open access, and what is the APC?
Information Processing Letters is a hybrid journal. For open-access publication: APC about USD 2,590.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .