She Invented That A digital museum of women in science
← Discovery archive

Discovery Exhibit

Inverse document frequency

1 scientist

A statistical weighting idea that became foundational to information retrieval and search ranking.

The Breakthrough

Why this discovery matters

A statistical weighting idea that became foundational to information retrieval and search ranking.

Continue Exploring

Related Discoveries

Discovery

ARM processor architecture

Co-design of the original ARM processor architecture, which became one of the world's most widely used instruction-set …

View discovery → Discovery

Artemisinin and dihydroartemisinin for malaria

Discovery and development of artemisinin-based antimalarial treatments.

View discovery → Discovery

BBC Micro

Co-design of the BBC Micro computer, influential in British computing education.

View discovery →