{"id":"https://openalex.org/keywords/zero-inflation","display_name":"excess zeros","description":"A count-data phenomenon in which observed zero values occur more often than expected under a standard statistical model.","display_name_alternatives":["zero inflation","excess zero counts","excess zero values","excessive zeros"],"ids":{"openalex":"https://openalex.org/keywords/zero-inflation","wikidata":null},"primary_topic":{"id":"https://openalex.org/T10243","display_name":"Statistical Methods and Bayesian Inference","score":0.2474,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"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/T10243","display_name":"Statistical Methods and Bayesian Inference","score":0.2474,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10968","display_name":"Statistical Distribution Estimation and Applications","score":0.1234,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":2521,"cited_by_count":56086,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/zero-inflation","updated_date":"2026-10-19T04:06:21","created_date":"2022-04-12T19:38:12"}