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What CORE conference ranks mean (A*, A, B, C)

The CORE ranking sorts computer-science conferences into tiers. It started in Australia and New Zealand, is reviewed in rounds every few years, and is now widely used beyond that region, in hiring, promotion and grant reviews.

The tiers

• A*: the flagship conferences of a research area, where its leading work appears.
• A: excellent, highly respected conferences.
• B: good conferences with solid reviewing.
• C: conferences that meet the minimum standard to be ranked.

Some conferences are listed as national or regional, or as unranked; unranked does not mean poor, often only that the venue is new or was not reviewed.

Using it well

Ranks are set per conference, not per paper, and change between rounds, so cite the round you used. Tiers are coarse: two A* conferences in different areas can differ a lot in size and acceptance rate. Check the current rank on the CORE portal; each computer-science conference page here links to its entry.