{"doi":"10.1109/tnn.2005.849840","title":"Sparse Component Analysis and Blind Source Separation of Underdetermined Mixtures","abstract":"In this letter, we solve the problem of identifying matrices S is an element of R(n x N) and A is an element of R(m x n) knowing only their multiplication X = AS, under some conditions, expressed either in terms of A and sparsity of S (identifiability conditions), or in terms of X (sparse component analysis (SCA) conditions). We present algorithms for such identification and illustrate them by examples.","journal":"IEEE Transactions on Neural Networks","year":2005,"id":8497,"datarank":0.8799702085399946,"base_score":5.8664680569332965,"endowment":5.8664680569332965,"self_citation_contribution":0.8799702085399946,"citation_network_contribution":0.0,"self_endowment_contribution":0.8799702085399946,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":352,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.0548,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2005-07-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":74929,"name":"Pando G. Georgiev","orcid":null,"position":3,"is_corresponding":false},{"id":42,"name":"Fabian Joachim Theis","orcid":"0000-0002-2419-1943","position":4,"is_corresponding":false},{"id":14599,"name":"Andrzej Cichocki","orcid":"0000-0002-8364-7226","position":5,"is_corresponding":false}],"reference_count":11,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-03-01T18:20:47.508186Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}