Research
Long-form articles on the evidence behind OJR and the open data it is computed from. Each one cites its sources and says when it was last updated.
Missing references and meeting abstracts in OJR
Published Last updated
A study of two gaps in the open data behind OJR: meeting abstracts typed as articles, which release 2025 leaves out, and missing reference lists, which remain.
OJR vs SNIP and SJR: journal ranking validation
Published Last updated
A validation study: how OJR agrees with CWTS SNIP, SCImago’s SJR and the Norwegian Register’s expert levels, where it disagrees and why.
What the research says about OJR
Published Last updated
How OJR’s design compares with the published evidence on journal indicators and on OpenAlex, where that evidence is mixed, and what is still untested.