Annals of Operations Research is the 3rd out of 53 Operations Research journals. This means the journal is among the top 6% in the sub-discipline of Operations Research. This Journal is the 8th out of 111 Systems Science journals. This means the journal is among the top 8% in the discipline of Systems Science. This Journal is the 265th out of 2,945 Formal Sciences journals. This means the journal is among the top 9% in the science branch of Formal Sciences. This Journal is the 878th out of 18,687 Social Sciences journals. This means the journal is among the top 5% in the science branch of Social Sciences.
How are inpact factors calculated?
The impact factor (IF) is calculated by counting citations from peer-reviewed journals only.
extended IF also counts citations from books and conference papers. However, no patent, abstract, working papers, online documents, etc., are covered.