{"id":"https://openalex.org/W4210790264","doi":"https://doi.org/10.1007/978-3-030-95070-5_16","title":"Low Rank Matrix Approximation for\u00a0Imputing Missing Categorical Data","display_name":"Low Rank Matrix Approximation for\u00a0Imputing Missing Categorical Data","publication_year":2022,"publication_date":"2022-01-01","ids":{"openalex":"https://openalex.org/W4210790264","doi":"https://doi.org/10.1007/978-3-030-95070-5_16"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-030-95070-5_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-95070-5_16","pdf_url":null,"source":{"id":"https://openalex.org/S2764900261","display_name":"Communications in computer and information science","issn_l":"1865-0929","issn":["1865-0929","1865-0937"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Communications in Computer and Information Science","raw_type":"book-chapter"},"type":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5055792634","display_name":"Joseph Muthui Wacira","orcid":null},"institutions":[{"id":"https://openalex.org/I148561064","display_name":"African Institute for Mathematical Sciences","ror":"https://ror.org/02f9k5d27","country_code":"ZA","type":"education","lineage":["https://openalex.org/I148561064"]},{"id":"https://openalex.org/I869660684","display_name":"University of the Western Cape","ror":"https://ror.org/00h2vm590","country_code":"ZA","type":"education","lineage":["https://openalex.org/I869660684"]}],"countries":["ZA"],"is_corresponding":true,"raw_author_name":"Joseph Muthui Wacira","raw_affiliation_strings":["African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","Department of Mathematics and Applied Mathematics, University of Western Cape, Bellville, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","institution_ids":["https://openalex.org/I148561064"]},{"raw_affiliation_string":"Department of Mathematics and Applied Mathematics, University of Western Cape, Bellville, South Africa","institution_ids":["https://openalex.org/I869660684"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090897524","display_name":"Dinna Ranirina","orcid":null},"institutions":[{"id":"https://openalex.org/I148561064","display_name":"African Institute for Mathematical Sciences","ror":"https://ror.org/02f9k5d27","country_code":"ZA","type":"education","lineage":["https://openalex.org/I148561064"]},{"id":"https://openalex.org/I26092322","display_name":"Stellenbosch University","ror":"https://ror.org/05bk57929","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26092322"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Dinna Ranirina","raw_affiliation_strings":["African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","institution_ids":["https://openalex.org/I148561064"]},{"raw_affiliation_string":"Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa","institution_ids":["https://openalex.org/I26092322"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008341060","display_name":"Bubacarr Bah","orcid":"https://orcid.org/0000-0003-3318-6668"},"institutions":[{"id":"https://openalex.org/I148561064","display_name":"African Institute for Mathematical Sciences","ror":"https://ror.org/02f9k5d27","country_code":"ZA","type":"education","lineage":["https://openalex.org/I148561064"]},{"id":"https://openalex.org/I26092322","display_name":"Stellenbosch University","ror":"https://ror.org/05bk57929","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26092322"]}],"countries":["ZA"],"is_corresponding":false,"raw_author_name":"Bubacarr Bah","raw_affiliation_strings":["African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa"],"raw_orcid":"https://orcid.org/0000-0003-3318-6668","affiliations":[{"raw_affiliation_string":"African Institute for Mathematical Sciences (AIMS), Cape Town, South Africa","institution_ids":["https://openalex.org/I148561064"]},{"raw_affiliation_string":"Department of Mathematical Sciences, Stellenbosch University, Stellenbosch, South Africa","institution_ids":["https://openalex.org/I26092322"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5055792634"],"corresponding_institution_ids":["https://openalex.org/I148561064","https://openalex.org/I869660684"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.05627439,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"242","last_page":"256"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11612","display_name":"Stochastic Gradient Optimization Techniques","score":0.9944999814033508,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/categorical-variable","display_name":"Categorical variable","score":0.8924632668495178},{"id":"https://openalex.org/keywords/matrix-completion","display_name":"Matrix completion","score":0.7989498376846313},{"id":"https://openalex.org/keywords/missing-data","display_name":"Missing data","score":0.7318357825279236},{"id":"https://openalex.org/keywords/rank","display_name":"Rank (graph theory)","score":0.6021061539649963},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5988756418228149},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.5704981684684753},{"id":"https://openalex.org/keywords/low-rank-approximation","display_name":"Low-rank approximation","score":0.5094671845436096},{"id":"https://openalex.org/keywords/matrix-norm","display_name":"Matrix norm","score":0.5025444030761719},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5001828670501709},{"id":"https://openalex.org/keywords/minification","display_name":"Minification","score":0.4907282590866089},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.36770719289779663},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2849932610988617},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.18505799770355225},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.07799369096755981},{"id":"https://openalex.org/keywords/eigenvalues-and-eigenvectors","display_name":"Eigenvalues and eigenvectors","score":0.056765735149383545}],"concepts":[{"id":"https://openalex.org/C5274069","wikidata":"https://www.wikidata.org/wiki/Q2285707","display_name":"Categorical variable","level":2,"score":0.8924632668495178},{"id":"https://openalex.org/C2778459887","wikidata":"https://www.wikidata.org/wiki/Q6787865","display_name":"Matrix completion","level":3,"score":0.7989498376846313},{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.7318357825279236},{"id":"https://openalex.org/C164226766","wikidata":"https://www.wikidata.org/wiki/Q7293202","display_name":"Rank (graph theory)","level":2,"score":0.6021061539649963},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5988756418228149},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.5704981684684753},{"id":"https://openalex.org/C90199385","wikidata":"https://www.wikidata.org/wiki/Q6692777","display_name":"Low-rank approximation","level":3,"score":0.5094671845436096},{"id":"https://openalex.org/C92207270","wikidata":"https://www.wikidata.org/wiki/Q939253","display_name":"Matrix norm","level":3,"score":0.5025444030761719},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5001828670501709},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.4907282590866089},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.36770719289779663},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2849932610988617},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.18505799770355225},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.07799369096755981},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.056765735149383545},{"id":"https://openalex.org/C25023664","wikidata":"https://www.wikidata.org/wiki/Q1575637","display_name":"Hankel matrix","level":2,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-030-95070-5_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-95070-5_16","pdf_url":null,"source":{"id":"https://openalex.org/S2764900261","display_name":"Communications in computer and information science","issn_l":"1865-0929","issn":["1865-0929","1865-0937"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Communications in Computer and Information Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W2037594831","https://openalex.org/W2047071281","https://openalex.org/W2077430220","https://openalex.org/W2096863518","https://openalex.org/W2100556411","https://openalex.org/W2103972604","https://openalex.org/W2115098571","https://openalex.org/W2118550318","https://openalex.org/W2124608575","https://openalex.org/W2134332047","https://openalex.org/W2167732364","https://openalex.org/W2950706335","https://openalex.org/W2963186204","https://openalex.org/W2964200481","https://openalex.org/W2994844380","https://openalex.org/W3023386002","https://openalex.org/W4237650824","https://openalex.org/W4301791716","https://openalex.org/W6675354045"],"related_works":["https://openalex.org/W2964006653","https://openalex.org/W2788826952","https://openalex.org/W4302315572","https://openalex.org/W2084983808","https://openalex.org/W2325477568","https://openalex.org/W1991825408","https://openalex.org/W4318564253","https://openalex.org/W1969698720","https://openalex.org/W1507830821","https://openalex.org/W2963965423"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
