International Journal of Approximate Reasoning

{{Infobox journal

| title = International Journal of Approximate Reasoning

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| abbreviation = Int. J. Approx. Reason.

| mathscinet = Internat. J. Approx. Reason.

| discipline = Operational research

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| editor = Thierry Denoeux

| publisher = Elsevier

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| history = 1987–present

| frequency = Monthly

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| impact = 3.816

| impact-year = 2020

| ISSN = 0888-613X

| eISSN = 1873-4731

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| website = https://www.journals.elsevier.com/international-journal-of-approximate-reasoning

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The International Journal of Approximate Reasoning (IJAR) is a peer-reviewed academic journal in operations research. It was founded in 1987 {{Cite journal |title=A Message from the Editor | volume=1 |issue=1 | pages=1–3 |doi=10.1016/0888-613X(87)90002-8 |issn=1873-4731|year=1987 |last1=Bezdek |first1=Jim | journal=International Journal of Approximate Reasoning |url=https://www.sciencedirect.com/journal/international-journal-of-approximate-reasoning/vol/1/issue/1 |hdl=11370/e79524f2-e0b1-4212-9348-85dc81937d71 |hdl-access=free }} by Jim Bezdek, and is published on a monthly basis by Elsevier, with Thierry Denoeux as its Editor-in-Chief.{{citation|url=https://www-sciencedirect-com.librweb.laurentian.ca/journal/international-journal-of-approximate-reasoning|title=International Journal of Approximate Reasoning|publisher=Elsevier|accessdate=2021-09-12}}