{"id":"https://openalex.org/W4405485509","doi":"https://doi.org/10.1088/2632-2153/ada0a4","title":"New parameterized quantum gates design and efficient gradient solving based on variational quantum classification algorithm","display_name":"New parameterized quantum gates design and efficient gradient solving based on variational quantum classification algorithm","publication_year":2024,"publication_date":"2024-12-17","ids":{"openalex":"https://openalex.org/W4405485509","doi":"https://doi.org/10.1088/2632-2153/ada0a4"},"language":"en","primary_location":{"id":"doi:10.1088/2632-2153/ada0a4","is_oa":true,"landing_page_url":"https://doi.org/10.1088/2632-2153/ada0a4","pdf_url":null,"source":{"id":"https://openalex.org/S4210200687","display_name":"Machine Learning Science and Technology","issn_l":"2632-2153","issn":["2632-2153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning: Science and Technology","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1088/2632-2153/ada0a4","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5016213344","display_name":"Xiaodong Ding","orcid":"https://orcid.org/0000-0001-9947-4035"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaodong Ding","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":"https://orcid.org/0000-0001-9947-4035","affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064150468","display_name":"Fudong Liu","orcid":"https://orcid.org/0000-0001-8771-5938"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"FuDong Liu","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100660991","display_name":"Weilong Wang","orcid":"https://orcid.org/0000-0003-3872-1236"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weilong Wang","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043817151","display_name":"Yu Cheng Zhu","orcid":"https://orcid.org/0000-0003-1971-7784"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Zhu","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113410964","display_name":"Yifan Hou","orcid":"https://orcid.org/0009-0002-2793-3719"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yifan Hou","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049037105","display_name":"Yizhen Huang","orcid":"https://orcid.org/0000-0002-7041-1927"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yizhen Huang","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100743219","display_name":"Jinchen Xu","orcid":"https://orcid.org/0000-0002-6275-2617"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinchen Xu","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018043272","display_name":"Zheng Shan","orcid":"https://orcid.org/0009-0003-9602-0988"},"institutions":[{"id":"https://openalex.org/I36152291","display_name":"Henan University of Technology","ror":"https://ror.org/05sbgwt55","country_code":"CN","type":"education","lineage":["https://openalex.org/I36152291"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng Shan","raw_affiliation_strings":["Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China"],"raw_orcid":"https://orcid.org/0009-0003-9602-0988","affiliations":[{"raw_affiliation_string":"Laboratory for Advanced Computing and Intelligence Engineering, No. 62, Science Avenue, Zhengzhou City, Henan Province, People\u2019s Republic of China","institution_ids":["https://openalex.org/I36152291"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5016213344"],"corresponding_institution_ids":["https://openalex.org/I36152291"],"apc_list":{"value":1600,"currency":"GBP","value_usd":1962},"apc_paid":{"value":1600,"currency":"GBP","value_usd":1962},"fwci":0.3311,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.68817682,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"6","issue":"1","first_page":"015004","last_page":"015004"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9998999834060669,"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/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9998999834060669,"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/T10020","display_name":"Quantum Information and Cryptography","score":0.9983000159263611,"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/T13182","display_name":"Quantum-Dot Cellular Automata","score":0.9934999942779541,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quantum-computer","display_name":"Quantum computer","score":0.672096312046051},{"id":"https://openalex.org/keywords/quantum-circuit","display_name":"Quantum circuit","score":0.64105224609375},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6229881048202515},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.6068072319030762},{"id":"https://openalex.org/keywords/quantum-algorithm","display_name":"Quantum algorithm","score":0.5950454473495483},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5936256051063538},{"id":"https://openalex.org/keywords/qubit","display_name":"Qubit","score":0.5772438049316406},{"id":"https://openalex.org/keywords/parameterized-complexity","display_name":"Parameterized complexity","score":0.5215168595314026},{"id":"https://openalex.org/keywords/quantum","display_name":"Quantum","score":0.5200621485710144},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.469265878200531},{"id":"https://openalex.org/keywords/quantum-gate","display_name":"Quantum gate","score":0.4449985921382904},{"id":"https://openalex.org/keywords/quantum-phase-estimation-algorithm","display_name":"Quantum phase estimation algorithm","score":0.4412734806537628},{"id":"https://openalex.org/keywords/quantum-error-correction","display_name":"Quantum error correction","score":0.29314279556274414},{"id":"https://openalex.org/keywords/quantum-mechanics","display_name":"Quantum mechanics","score":0.12198293209075928},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0981931984424591}],"concepts":[{"id":"https://openalex.org/C58053490","wikidata":"https://www.wikidata.org/wiki/Q176555","display_name":"Quantum computer","level":3,"score":0.672096312046051},{"id":"https://openalex.org/C124148022","wikidata":"https://www.wikidata.org/wiki/Q2122210","display_name":"Quantum circuit","level":5,"score":0.64105224609375},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6229881048202515},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.6068072319030762},{"id":"https://openalex.org/C137019171","wikidata":"https://www.wikidata.org/wiki/Q2623817","display_name":"Quantum algorithm","level":3,"score":0.5950454473495483},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5936256051063538},{"id":"https://openalex.org/C203087015","wikidata":"https://www.wikidata.org/wiki/Q378201","display_name":"Qubit","level":3,"score":0.5772438049316406},{"id":"https://openalex.org/C165464430","wikidata":"https://www.wikidata.org/wiki/Q1570441","display_name":"Parameterized complexity","level":2,"score":0.5215168595314026},{"id":"https://openalex.org/C84114770","wikidata":"https://www.wikidata.org/wiki/Q46344","display_name":"Quantum","level":2,"score":0.5200621485710144},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.469265878200531},{"id":"https://openalex.org/C58849907","wikidata":"https://www.wikidata.org/wiki/Q2118982","display_name":"Quantum gate","level":4,"score":0.4449985921382904},{"id":"https://openalex.org/C192122513","wikidata":"https://www.wikidata.org/wiki/Q2835770","display_name":"Quantum phase estimation algorithm","level":5,"score":0.4412734806537628},{"id":"https://openalex.org/C51003876","wikidata":"https://www.wikidata.org/wiki/Q1536431","display_name":"Quantum error correction","level":4,"score":0.29314279556274414},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.12198293209075928},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0981931984424591},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1088/2632-2153/ada0a4","is_oa":true,"landing_page_url":"https://doi.org/10.1088/2632-2153/ada0a4","pdf_url":null,"source":{"id":"https://openalex.org/S4210200687","display_name":"Machine Learning Science and Technology","issn_l":"2632-2153","issn":["2632-2153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning: Science and Technology","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:ccaf0621bff64dbb8ac38dca76899881","is_oa":true,"landing_page_url":"https://doaj.org/article/ccaf0621bff64dbb8ac38dca76899881","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Machine Learning: Science and Technology, Vol 6, Iss 1, p 015004 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1088/2632-2153/ada0a4","is_oa":true,"landing_page_url":"https://doi.org/10.1088/2632-2153/ada0a4","pdf_url":null,"source":{"id":"https://openalex.org/S4210200687","display_name":"Machine Learning Science and Technology","issn_l":"2632-2153","issn":["2632-2153"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Machine Learning: Science and Technology","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.4699999988079071}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W1530691225","https://openalex.org/W1990514347","https://openalex.org/W2161685427","https://openalex.org/W2562234976","https://openalex.org/W2755255888","https://openalex.org/W2778069674","https://openalex.org/W2790388700","https://openalex.org/W2798434869","https://openalex.org/W2896712926","https://openalex.org/W2907827190","https://openalex.org/W2942828225","https://openalex.org/W2947849003","https://openalex.org/W2952384119","https://openalex.org/W2955078219","https://openalex.org/W2971844308","https://openalex.org/W3008477378","https://openalex.org/W3010145447","https://openalex.org/W3015667706","https://openalex.org/W3034762567","https://openalex.org/W3043647281","https://openalex.org/W3057420237","https://openalex.org/W3080889453","https://openalex.org/W3096052452","https://openalex.org/W3098400458","https://openalex.org/W3100566623","https://openalex.org/W3104824731","https://openalex.org/W3106337388","https://openalex.org/W3106984071","https://openalex.org/W3107697696","https://openalex.org/W3111162498","https://openalex.org/W3129110052","https://openalex.org/W3129458892","https://openalex.org/W3132743969","https://openalex.org/W3135712736","https://openalex.org/W3158979395","https://openalex.org/W3173713405","https://openalex.org/W3194887815","https://openalex.org/W3216959536","https://openalex.org/W4213212652","https://openalex.org/W4281287768","https://openalex.org/W4312858610","https://openalex.org/W4318977955","https://openalex.org/W6763449645","https://openalex.org/W6786450451","https://openalex.org/W6810610763"],"related_works":["https://openalex.org/W4375959436","https://openalex.org/W4385310265","https://openalex.org/W1641472573","https://openalex.org/W4281550036","https://openalex.org/W1986555820","https://openalex.org/W4384615858","https://openalex.org/W3206120658","https://openalex.org/W4200120227","https://openalex.org/W3132276317","https://openalex.org/W4210505369"],"abstract_inverted_index":{"Abstract":[0],"Currently,":[1],"variational":[2],"quantum":[3,45,52,78,86,94,113,147,179,229],"classification":[4,180,200],"algorithms":[5],"(VQCAs)":[6],"generally":[7],"rely":[8],"on":[9,158,178],"traditional":[10,218],"optimization":[11,21,219],"techniques":[12],"such":[13,161],"as":[14,162],"Powell":[15],"and":[16,88,110,134,165,203,253],"SLSQP":[17],"in":[18,31,77,172,215,239,250],"the":[19,24,35,41,51,59,72,81,101,108,122,127,137,153,169,184,187,191,199,226,245],"parameter":[20,42,123],"session.":[22],"However,":[23],"performance":[25,177,206],"of":[26,74,84,103,112,130,190,213,228],"these":[27],"methods":[28],"shows":[29,167],"limitations":[30],"practical":[32,240],"applications.":[33,255],"Although":[34],"parameter-shift":[36,185],"rule":[37],"can":[38,140],"efficiently":[39],"compute":[40],"gradient":[43,128],"with":[44,80,143,183,217],"circuits,":[46],"it":[47],"needs":[48],"to":[49,64,121],"run":[50],"circuit":[53,148],"twice":[54],"repeatedly,":[55],"which":[56,106,150,242],"significantly":[57],"reduces":[58],"computation":[60,154,188],"efficiency.":[61,155],"In":[62],"order":[63],"overcome":[65],"this":[66,68,173],"challenge,":[67],"paper":[69,174],"innovatively":[70],"integrates":[71],"principle":[73],"unitary":[75,104],"operation":[76],"mechanics":[79],"technical":[82],"characteristics":[83],"superconducting":[85],"chips":[87],"elaborately":[89],"designs":[90],"some":[91],"new":[92,138,192],"parameterized":[93],"gates":[95],"(PQGs).":[96],"These":[97],"PQGs":[98],"strictly":[99],"follow":[100],"rules":[102],"operation,":[105],"ensures":[107],"stability":[109],"accuracy":[111],"state":[114],"evolution":[115],"while":[116],"realizing":[117],"an":[118,211],"efficient":[119],"solution":[120],"gradient.":[124],"Especially":[125],"for":[126],"calculation":[129],"a":[131,145],"single":[132,146],"qubit":[133],"single-angle":[135],"PQGs,":[136],"method":[139,170,193,246],"be":[141],"completed":[142],"only":[144,224],"run,":[149],"greatly":[151],"improves":[152],"Experimental":[156],"validation":[157],"benchmark":[159],"datasets":[160],"breast":[163],"cancer":[164],"iris":[166],"that":[168,244],"proposed":[171],"exhibits":[175],"excellent":[176],"tasks.":[181],"Compared":[182],"rule,":[186],"efficiency":[189],"is":[194],"improved":[195,209],"by":[196,210],"40%.":[197],"And":[198],"accuracy,":[201],"precision,":[202],"other":[204],"key":[205],"metrics":[207],"are":[208],"average":[212],"5%":[214],"comparison":[216],"algorithms.":[220],"This":[221],"work":[222],"not":[223],"enriches":[225],"methodology":[227],"machine":[230],"learning":[231],"theoretically":[232],"but":[233],"also":[234],"demonstrates":[235],"its":[236],"remarkable":[237],"superiority":[238],"applications,":[241],"indicates":[243],"has":[247],"great":[248],"potential":[249],"scientific":[251],"research":[252],"industrial":[254]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-02-24T06:16:03.338239","created_date":"2025-10-10T00:00:00"}
