{"id":"https://openalex.org/W2573061036","doi":"https://doi.org/10.1109/tcsii.2017.2651388","title":"A Convex Combination of NLMS and ZA-NLMS for Identifying Systems With Variable Sparsity","display_name":"A Convex Combination of NLMS and ZA-NLMS for Identifying Systems With Variable Sparsity","publication_year":2017,"publication_date":"2017-01-11","ids":{"openalex":"https://openalex.org/W2573061036","doi":"https://doi.org/10.1109/tcsii.2017.2651388","mag":"2573061036"},"language":"en","primary_location":{"id":"doi:10.1109/tcsii.2017.2651388","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2017.2651388","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"},"type":"article","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/A5027836141","display_name":"Bijit Kumar Das","orcid":"https://orcid.org/0000-0002-3144-4312"},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Bijit K. Das","raw_affiliation_strings":["Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109349764","display_name":"G. Vinay Chakravarthi","orcid":null},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"G. Vinay Chakravarthi","raw_affiliation_strings":["Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072872028","display_name":"Mrityunjoy Chakraborty","orcid":"https://orcid.org/0000-0003-4009-9554"},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Mrityunjoy Chakraborty","raw_affiliation_strings":["Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India"],"raw_orcid":"https://orcid.org/0000-0003-4009-9554","affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4699,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.87707464,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"64","issue":"9","first_page":"1112","last_page":"1116"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11233","display_name":"Advanced Adaptive Filtering 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/T11233","display_name":"Advanced Adaptive Filtering 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/T10860","display_name":"Speech and Audio Processing","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11447","display_name":"Blind Source Separation Techniques","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/convex-combination","display_name":"Convex combination","score":0.5991544127464294},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.5512213110923767},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5260493755340576},{"id":"https://openalex.org/keywords/least-mean-squares-filter","display_name":"Least mean squares filter","score":0.4979383945465088},{"id":"https://openalex.org/keywords/adaptive-filter","display_name":"Adaptive filter","score":0.48553940653800964},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.4690796732902527},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.44989013671875},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4283648729324341},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.3440432548522949}],"concepts":[{"id":"https://openalex.org/C111110010","wikidata":"https://www.wikidata.org/wiki/Q2627315","display_name":"Convex combination","level":4,"score":0.5991544127464294},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.5512213110923767},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5260493755340576},{"id":"https://openalex.org/C32617633","wikidata":"https://www.wikidata.org/wiki/Q1426666","display_name":"Least mean squares filter","level":3,"score":0.4979383945465088},{"id":"https://openalex.org/C102248274","wikidata":"https://www.wikidata.org/wiki/Q168388","display_name":"Adaptive filter","level":2,"score":0.48553940653800964},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.4690796732902527},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.44989013671875},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4283648729324341},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.3440432548522949},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsii.2017.2651388","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2017.2651388","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1492221128","https://openalex.org/W1667165204","https://openalex.org/W1999542175","https://openalex.org/W2014929011","https://openalex.org/W2030319782","https://openalex.org/W2098674248","https://openalex.org/W2103644547","https://openalex.org/W2107806930","https://openalex.org/W2111022774","https://openalex.org/W2207408027","https://openalex.org/W2328489822","https://openalex.org/W2342561345","https://openalex.org/W6674616871","https://openalex.org/W6675873461"],"related_works":["https://openalex.org/W2287235845","https://openalex.org/W2051390178","https://openalex.org/W2586228848","https://openalex.org/W2081837274","https://openalex.org/W2253481662","https://openalex.org/W2357454918","https://openalex.org/W2189195857","https://openalex.org/W1998353256","https://openalex.org/W2370278301","https://openalex.org/W2079771791"],"abstract_inverted_index":{"This":[0],"brief":[1],"aims":[2],"to":[3,63,94,115],"identify":[4],"and":[5,34],"track":[6],"a":[7,15,95],"sparse":[8,75,114],"system":[9],"with":[10],"time":[11],"varying":[12],"sparseness":[13],"by":[14],"convex":[16],"combination":[17,51,61],"of":[18,48,82,108],"two":[19,84],"adaptive":[20],"filters,":[21],"one":[22],"based":[23,37],"on":[24,38],"the":[25,35,39,49,59,64,67,83,86,102,106],"sparsity":[26,40,88,128],"unaware":[27],"normalized":[28],"least":[29],"mean":[30],"square":[31],"(NLMS)":[32],"algorithm":[33],"other":[36],"aware":[41],"zero-attracting":[42],"NLMS":[43],"(ZA-NLMS)":[44],"algorithm.":[45],"An":[46],"analysis":[47],"proposed":[50,60],"is":[52,120],"carried":[53],"out,":[54],"which":[55],"reveals":[56],"that":[57,72,97,110],"while":[58],"converges":[62],"ZA-NLMS":[65],"or":[66,76],"NLMS-based":[68],"filter":[69,96],"for":[70],"systems":[71,109],"are":[73],"highly":[74,77],"non-sparse,":[78],"respectively":[79],"(i.e.,":[80],"better":[81,99],"under":[85,126],"given":[87],"condition),":[89],"it":[90],"may,":[91],"however,":[92],"lead":[93],"performs":[98],"than":[100],"both":[101],"constituent":[103],"filters":[104],"in":[105],"case":[107],"lie":[111],"between":[112],"moderately":[113,116],"non-sparse.":[117],"The":[118],"same":[119],"confirmed":[121],"via":[122],"detailed":[123],"simulation":[124],"studies":[125],"different":[127],"conditions.":[129]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":6},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}