{"id":"https://openalex.org/keywords/sampling-theorem","display_name":"sampling theorem","description":"A signal-processing principle specifying conditions under which a continuous signal can be reconstructed from discrete samples taken at a sufficient rate.","display_name_alternatives":["Whittaker-Nyquist-Shannon sampling theorem","Nyquist-Shannon theorem","cardinal theorem of interpolation","sampling theorems","nyquist theorem","Nyquist sampling theorem","Nyquist-Shannon sampling theorem","Shannon sampling theorem","Whittaker-Shannon sampling theorem"],"ids":{"openalex":"https://openalex.org/keywords/sampling-theorem","wikidata":"https://www.wikidata.org/wiki/Q679800"},"primary_topic":{"id":"https://openalex.org/T11210","display_name":"Mathematical Analysis and Transform Methods","score":0.3918,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11210","display_name":"Mathematical Analysis and Transform Methods","score":0.3918,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":3753,"cited_by_count":51245,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/sampling-theorem","updated_date":"2026-10-16T04:06:51","created_date":"2026-09-30T00:00:00"}