{"id":"https://openalex.org/keywords/sparse-matrices","display_name":"sparse matrices","description":"Matrices in which most entries are zero, commonly handled with specialized storage formats and algorithms in computing and numerical analysis.","display_name_alternatives":["sparse matrix"],"ids":{"openalex":"https://openalex.org/keywords/sparse-matrices","wikidata":"https://www.wikidata.org/wiki/Q1050404"},"primary_topic":{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.4794,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.4794,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.0722,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":9291,"cited_by_count":221375,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/sparse-matrices","updated_date":"2026-10-21T04:06:17","created_date":"2026-09-30T00:00:00"}