What is it about?
Hashing is a common technique that lets computers quickly find data by turning each item (like a word or ID) into a number that points to its storage location. Sometimes different items get the same number, which causes slowdowns. Perfect hashing avoids this by giving every item in a known dataset its own unique number. This survey reviews modern methods that can do this for very large datasets using little memory and very fast lookups.
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This page is a summary of: Modern Minimal Perfect Hashing: A Survey, ACM Computing Surveys, February 2026, ACM (Association for Computing Machinery),
DOI: 10.1145/3797036.
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