{"id":"https://openalex.org/W1576056492","doi":"https://doi.org/10.1109/icassp.1978.1170478","title":"Identification of nonstationary components by complex spectral zero analysis","display_name":"Identification of nonstationary components by complex spectral zero analysis","publication_year":2005,"publication_date":"2005-03-24","ids":{"openalex":"https://openalex.org/W1576056492","doi":"https://doi.org/10.1109/icassp.1978.1170478","mag":"1576056492"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1978.1170478","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1978.1170478","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '78. IEEE International Conference on Acoustics, Speech, and Signal Processing","raw_type":"proceedings-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/A5109137242","display_name":"J. Bee Bednar","orcid":null},"institutions":[{"id":"https://openalex.org/I87208437","display_name":"University of Tulsa","ror":"https://ror.org/04wn28048","country_code":"US","type":"education","lineage":["https://openalex.org/I87208437"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"J. Bednar","raw_affiliation_strings":["CEJA Corporation, University of Tulsa, Tulsa, OK, USA"],"affiliations":[{"raw_affiliation_string":"CEJA Corporation, University of Tulsa, Tulsa, OK, USA","institution_ids":["https://openalex.org/I87208437"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044760045","display_name":"W. A. Coberly","orcid":null},"institutions":[{"id":"https://openalex.org/I87208437","display_name":"University of Tulsa","ror":"https://ror.org/04wn28048","country_code":"US","type":"education","lineage":["https://openalex.org/I87208437"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"W. Coberly","raw_affiliation_strings":["CEJA Corporation, University of Tulsa, Tulsa, OK, USA"],"affiliations":[{"raw_affiliation_string":"CEJA Corporation, University of Tulsa, Tulsa, OK, USA","institution_ids":["https://openalex.org/I87208437"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5109137242"],"corresponding_institution_ids":["https://openalex.org/I87208437"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.06581444,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":null,"first_page":"35","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10320","display_name":"Neural Networks and Applications","score":0.9721999764442444,"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"}},"topics":[{"id":"https://openalex.org/T10320","display_name":"Neural Networks and Applications","score":0.9721999764442444,"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"}},{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9420999884605408,"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/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9312999844551086,"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/unit-circle","display_name":"Unit circle","score":0.8011771440505981},{"id":"https://openalex.org/keywords/component","display_name":"Component (thermodynamics)","score":0.6965928077697754},{"id":"https://openalex.org/keywords/pole\u2013zero-plot","display_name":"Pole\u2013zero plot","score":0.6810965538024902},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.562229335308075},{"id":"https://openalex.org/keywords/operator","display_name":"Operator (biology)","score":0.5615024566650391},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.5521591305732727},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.5206869840621948},{"id":"https://openalex.org/keywords/unit-root","display_name":"Unit root","score":0.5179345011711121},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4828970432281494},{"id":"https://openalex.org/keywords/zero","display_name":"Zero (linguistics)","score":0.47583723068237305},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.46115848422050476},{"id":"https://openalex.org/keywords/unit","display_name":"Unit (ring theory)","score":0.41682425141334534},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4074361026287079},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3833736777305603},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.37293732166290283},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.2093571126461029},{"id":"https://openalex.org/keywords/transfer-function","display_name":"Transfer function","score":0.1994069516658783},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.159168541431427},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1279946267604828},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.12260791659355164},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.11288774013519287},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0879368782043457}],"concepts":[{"id":"https://openalex.org/C126875415","wikidata":"https://www.wikidata.org/wiki/Q203425","display_name":"Unit circle","level":2,"score":0.8011771440505981},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.6965928077697754},{"id":"https://openalex.org/C43656286","wikidata":"https://www.wikidata.org/wiki/Q2100961","display_name":"Pole\u2013zero plot","level":3,"score":0.6810965538024902},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.562229335308075},{"id":"https://openalex.org/C17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","level":5,"score":0.5615024566650391},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.5521591305732727},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.5206869840621948},{"id":"https://openalex.org/C195561663","wikidata":"https://www.wikidata.org/wiki/Q1307899","display_name":"Unit root","level":2,"score":0.5179345011711121},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4828970432281494},{"id":"https://openalex.org/C2780813799","wikidata":"https://www.wikidata.org/wiki/Q3274237","display_name":"Zero (linguistics)","level":2,"score":0.47583723068237305},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.46115848422050476},{"id":"https://openalex.org/C122637931","wikidata":"https://www.wikidata.org/wiki/Q118084","display_name":"Unit (ring theory)","level":2,"score":0.41682425141334534},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4074361026287079},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3833736777305603},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.37293732166290283},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.2093571126461029},{"id":"https://openalex.org/C81299745","wikidata":"https://www.wikidata.org/wiki/Q334269","display_name":"Transfer function","level":2,"score":0.1994069516658783},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.159168541431427},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1279946267604828},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.12260791659355164},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.11288774013519287},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0879368782043457},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C86339819","wikidata":"https://www.wikidata.org/wiki/Q407384","display_name":"Transcription factor","level":3,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C145420912","wikidata":"https://www.wikidata.org/wiki/Q853077","display_name":"Mathematics education","level":1,"score":0.0},{"id":"https://openalex.org/C158448853","wikidata":"https://www.wikidata.org/wiki/Q425218","display_name":"Repressor","level":4,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1978.1170478","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1978.1170478","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '78. IEEE International Conference on Acoustics, Speech, and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W2004163116","https://openalex.org/W2135933868","https://openalex.org/W4210689152","https://openalex.org/W4292483811"],"related_works":["https://openalex.org/W4388063025","https://openalex.org/W1881651385","https://openalex.org/W1551069853","https://openalex.org/W2001898858","https://openalex.org/W1530541539","https://openalex.org/W1624264676","https://openalex.org/W1997232965","https://openalex.org/W4238167829","https://openalex.org/W4235718433","https://openalex.org/W2322285072"],"abstract_inverted_index":{"In":[0,67],"some":[1],"applications,":[2],"such":[3],"as":[4],"voiced":[5],"speech,":[6],"the":[7,18,37,58,89],"observed":[8],"time":[9,96],"series":[10],"may":[11],"be":[12],"nonstationary":[13,38,48],"due":[14],"to":[15,94],"roots":[16],"on":[17,57,88],"unit":[19,59],"circle.":[20,90],"If":[21],"there":[22],"is":[23,61,92],"a":[24,47,51,62,72],"single":[25],"root":[26],"at":[27,30],"1":[28],"or":[29],"-1,":[31],"then":[32],"simple":[33],"differencing":[34],"will":[35],"remove":[36,46],"component.":[39],"However,":[40],"determining":[41],"an":[42,83],"operator":[43],"which":[44,81],"would":[45],"component":[49],"having":[50],"more":[52,64],"complex":[53],"distribution":[54],"of":[55,86],"zeros":[56,87],"circle":[60],"much":[63],"complicated":[65],"problem.":[66],"this":[68],"paper":[69],"we":[70],"propose":[71],"method":[73],"for":[74,77],"finding":[75],"operators":[76],"seasonal":[78],"type":[79],"components,":[80],"have":[82],"implied":[84],"placement":[85],"This":[91],"applied":[93],"short":[95],"speech":[97],"signals.":[98]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}