Journal profile · Computer Science, Artificial Intelligence
International Journal of Approximate Reasoning
ISSN 0888-613X · eISSN 1873-4731 · Elsevier Inc. · UNITED STATES · Bimonthly · Founded 1987
International Journal of Approximate Reasoning: CAS Zone 3 · Computer Science (2025 upgraded edition); impact factor 2.79; hybrid open access; APC about USD 3,050; review about 126 days (submission to acceptance, publisher); community-reported acceptance: about 25%; 193 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
International Journal of Approximate Reasoning is published by Elsevier Inc. and is in Zone 3 of Computer Science in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Rough Sets and Fuzzy Logic, Bayesian Modeling and Causal Inference and Multi-Criteria Decision Making, together about 37.8% of its articles. Its main subfields are Artificial Intelligence. (generated from OpenAlex topic counts and CAS ranking data)
Uncertainty in Intelligent SystemsThe International Journal of Approximate Reasoning is intended to serve as a forum for the treatment of imprecision and uncertainty in Artificial and Computational Intelligence, covering both the foundations of uncertainty theories, and the design of intelligent systems for scientific and engineering applications. It publishes high-quality research papers describing theoretical developments or innovative applications, as well as review articles on topics of general interest.Relevant topics include, but are not limited to, probabilistic reasoning and Bayesian networks, imprecise probabilities, random sets, belief functions (Dempster-Shafer theory), possibility theory, fuzzy sets, rough sets, decision theory, non-additive measures and integrals, qualitative reasoning about uncertainty, comparative probability orderings, game-theoretic probability, default reasoning, nonstandard logics, argumentation systems, inconsistency tolerant reasoning, elicitation techniques, philosophical foundations and psychological models of uncertain reasoning.Domains of application for uncertain reasoning systems include risk analysis and assessment, information retrieval and database design, information fusion, machine learning, data and web mining, computer vision, image and signal processing, intelligent data analysis, statistics, multi-agent systems, etc.The journal is affiliated with the Society for Imprecise Probability: Theories and Applications (SIPTA), and Beliefs functions and Applications Society (BFAS).
From the journal's Aims & Scope
Research area (LetPub): Computer Science, Artificial Intelligence
Editor-in-chief Thierry DenoeuxPublisher website
Editorial board by country: 11 in mainland China (about 12%); most named Spain 12, Mainland China 11, Italy 11, United States 9, France 9 (93 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Rough Sets and Fuzzy LogicComputer Science13.7%
- Bayesian Modeling and Causal InferenceComputer Science12.8%
- Multi-Criteria Decision MakingDecision Sciences11.3%
- Logic, Reasoning, and KnowledgeComputer Science7.5%
- Fuzzy Logic and Control SystemsComputer Science5.1%
- Advanced Algebra and LogicComputer Science4.9%
- Fuzzy Systems and OptimizationMathematics4%
- Data Mining Algorithms and ApplicationsComputer Science3.7%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Computer Science Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 3 |
| Minor | Computer Science, Artificial Intelligence | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Computer Science Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 3 |
| Minor | Computer Science, Artificial Intelligence | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Computer Science Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Computer Science | Zone 3 |
| Minor | Computer Science, Artificial Intelligence | Zone 3 |
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
- 2.79LetPub ·
- Impact factor (publisher)
- 2.8Publisher website ·
- CiteScore 2026-06
- 6.3LetPub ·
- CiteScore (publisher)
- 6.3Publisher website ·
- SJR 2026-06
- 0.66LetPub ·
- SNIP 2026-06
- 1.28LetPub ·
- h-index
- 85LetPub ·
- h-index
- 136OpenAlex ·
- i10-index
- 1,824OpenAlex ·
- 2-year mean citedness
- 2.8OpenAlex ·
- Self-citation rate
- 14.3%LetPub ·
- Share of gold OA articles
- 33.83%LetPub ·
Volume
- Articles per year
- 169LetPub ·
Articles by year OpenAlex count · 4,081 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 154 | 68 | 34 |
| 2025 | 193 | 80 | 421 |
| 2024 | 161 | 74 | 967 |
| 2023 | 175 | 92 | 1,274 |
| 2022 | 169 | 99 | 2,242 |
| 2021 | 167 | 156 | 2,055 |
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
126 dayssubmission to acceptance · community reports about 12 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 12 monthsLetPub ·
- Average acceptance (community reports)
- 25%LetPub ·
- Submission to first decision
- 1 daysPublisher website ·
- First decision after review
- 62 daysPublisher website ·
- Submission to acceptance
- 126 daysPublisher website ·
- Acceptance to publication
- 6 daysPublisher website ·
- Peer review
- Single anonymous peer reviewPublisher 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 3,050 / EUR 2,850 / GBP 2,440 / JPY 378,290 | — | — | |
| Publisher website | USD 3,280 | — | — |
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)
Open calls for papers2, by deadline
Publisher websiteWhat to prepare5 items from the author guidelines
- Abstract
- ≤ 250 words
- Keywords
- 1–7
- Reference style
- Numbered, in order of citation
- Templates
- LaTeX
- Highlights
- Required
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI use
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship Group authorship
Group authorship refers to the attribution of an article to a defined and named group of authors whose members have contributed to the work. Examples include research consortia, clinical trial groups, collaborative networks, task forces or working groups, expert panels or consensus groups, and participatory research groups. Group authorship must be declared on the title page at submission. When av…
Source ↗Publisher website ·- Conflicts of interest Declaration of competing interests
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence or bias their work. Examples of potential competing interests include:EmploymentConsultanciesStock ownershipHonorariaPaid expert testimonyPatent applications or registrationsGrants or any other fundingAffiliation with the journal as an Editor or Advisory Board …
Source ↗Publisher website ·- License & copyright License options
Authors will be offered open access user license options which will determine how you, and third parties, can reuse your open access article. We advise that you review these options and any funding body license requirements before selecting a license option.
Source ↗Publisher website ·- Open access Open access
Open Archive: all published items free to read/download 48 months after publication Model summary
We refer you to our open access information page to learn about open access options for this journal.
Source ↗Publisher website ·- Peer review Peer review
Single anonymized review process Model summary
This journal follows a single anonymized review process. Your submission will initially be assessed by our editors. If your submission is deemed suitable, it will typically be sent to be reviewed by a minimum of two reviewers for an independent expert assessment of the scientific quality. The decision as to whether your article is accepted or rejected for publication will be made by our editors.Re…
Source ↗Publisher website ·- Preprints Preprints
Preprint sharingAuthors may share preprints in line with Elsevier's article sharing policy. Sharing preprints, such as on a preprint server, will not count as prior publication.We advise you to read our policy on multiple, redundant or concurrent publication. In support of Open Science, this journal offers its authors a free preprint posting service on SSRN, Elsevier’s preprint and early research …
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 Inc.
- Country or region
- UNITED STATES
- Language
- English
- Frequency
- Bimonthly
- Founded
- 1987
- ISSN
- 0888-613X
- Electronic ISSN
- 1873-4731
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about International Journal of Approximate Reasoning
What CAS zone is International Journal of Approximate Reasoning in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Journal of Approximate Reasoning is in Zone 3 of Computer Science, and in Zone 3 of the minor category Computer Science, Artificial Intelligence. In the 2026 Xinrui edition it is in Zone 3 of Computer Science. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Journal of Approximate Reasoning?
The latest impact factor listed by LetPub is 2.79; CiteScore 6.3, h-index 136.
How long does peer review take at International Journal of Approximate Reasoning?
The publisher reports about 126 days (submission to acceptance); authors report an average review time of about 12 months; the community-reported acceptance is “about 25%”. 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.
What are the manuscript requirements of International Journal of Approximate Reasoning?
According to the journal's author guidelines: Abstract: ≤ 250 words; Keywords: 1–7; Reference style: Numbered, in order of citation; Templates: LaTeX; Highlights: Required. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of International Journal of Approximate Reasoning based?
Of the 93 board members whose country the journal's board page names, 11 (about 12%) are in mainland China; the countries named most often are Spain (12), Mainland China (11) and Italy (11). Counted from the institutions listed on the board page; for reference only.
Which databases index International Journal of Approximate Reasoning?
According to LetPub and DOAJ records, International Journal of Approximate Reasoning is indexed in SCIE and Scopus.
Is International Journal of Approximate Reasoning open access, and what is the APC?
International Journal of Approximate Reasoning is a hybrid journal. For open-access publication: APC about USD 3,050.
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 2026-08-26). Last updated: .