{"id":"https://openalex.org/W3119589878","doi":"https://doi.org/10.3390/sym13010114","title":"Forecasting Model and Related Index of Pig Population in China","display_name":"Forecasting Model and Related Index of Pig Population in China","publication_year":2021,"publication_date":"2021-01-11","ids":{"openalex":"https://openalex.org/W3119589878","doi":"https://doi.org/10.3390/sym13010114","mag":"3119589878"},"language":"en","primary_location":{"id":"doi:10.3390/sym13010114","is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym13010114","pdf_url":"https://www.mdpi.com/2073-8994/13/1/114/pdf?version=1611049159","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Symmetry","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2073-8994/13/1/114/pdf?version=1611049159","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5056275114","display_name":"Fan Zhang","orcid":"https://orcid.org/0000-0002-0176-2715"},"institutions":[{"id":"https://openalex.org/I169572211","display_name":"Northeast Agricultural University","ror":"https://ror.org/0515nd386","country_code":"CN","type":"education","lineage":["https://openalex.org/I169572211"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fan Zhang","raw_affiliation_strings":["Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China","institution_ids":["https://openalex.org/I169572211"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101638660","display_name":"Fulin Wang","orcid":"https://orcid.org/0000-0003-3879-6924"},"institutions":[{"id":"https://openalex.org/I169572211","display_name":"Northeast Agricultural University","ror":"https://ror.org/0515nd386","country_code":"CN","type":"education","lineage":["https://openalex.org/I169572211"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Fulin Wang","raw_affiliation_strings":["Department of Agriculture and Forestry Economics and Management, School of Economics and Management, Northeast Agricultural University, Harbin 150030, China","Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agriculture and Forestry Economics and Management, School of Economics and Management, Northeast Agricultural University, Harbin 150030, China","institution_ids":["https://openalex.org/I169572211"]},{"raw_affiliation_string":"Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China","institution_ids":["https://openalex.org/I169572211"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101638660","display_name":"Fulin Wang","orcid":"https://orcid.org/0000-0003-3879-6924"},"institutions":[{"id":"https://openalex.org/I169572211","display_name":"Northeast Agricultural University","ror":"https://ror.org/0515nd386","country_code":"CN","type":"education","lineage":["https://openalex.org/I169572211"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Fulin Wang","raw_affiliation_strings":["Department of Agriculture and Forestry Economics and Management, School of Economics and Management, Northeast Agricultural University, Harbin 150030, China","Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agriculture and Forestry Economics and Management, School of Economics and Management, Northeast Agricultural University, Harbin 150030, China","institution_ids":["https://openalex.org/I169572211"]},{"raw_affiliation_string":"Department of Industrial Engineering, College of Engineering, Northeast Agricultural University, Harbin 150030, China","institution_ids":["https://openalex.org/I169572211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101638660"],"corresponding_institution_ids":["https://openalex.org/I169572211"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2227},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2227},"fwci":0.9087,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.75330068,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"13","issue":"1","first_page":"114","last_page":"114"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10594","display_name":"Genetic and phenotypic traits in livestock","score":0.9648000001907349,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10594","display_name":"Genetic and phenotypic traits in livestock","score":0.9648000001907349,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12365","display_name":"Effects of Environmental Stressors on Livestock","score":0.934499979019165,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10333","display_name":"Meat and Animal Product Quality","score":0.9082000255584717,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/population","display_name":"Population","score":0.714472770690918},{"id":"https://openalex.org/keywords/index","display_name":"Index (typography)","score":0.5717236399650574},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.554712176322937},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.4652493894100189},{"id":"https://openalex.org/keywords/population-model","display_name":"Population model","score":0.4621845483779907},{"id":"https://openalex.org/keywords/econometrics","display_name":"Econometrics","score":0.4576498568058014},{"id":"https://openalex.org/keywords/china","display_name":"China","score":0.4121585786342621},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4024820327758789},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.23682808876037598},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.19881048798561096},{"id":"https://openalex.org/keywords/demography","display_name":"Demography","score":0.1614002287387848},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.14408206939697266}],"concepts":[{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.714472770690918},{"id":"https://openalex.org/C2777382242","wikidata":"https://www.wikidata.org/wiki/Q6017816","display_name":"Index (typography)","level":2,"score":0.5717236399650574},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.554712176322937},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.4652493894100189},{"id":"https://openalex.org/C52079815","wikidata":"https://www.wikidata.org/wiki/Q7229808","display_name":"Population model","level":3,"score":0.4621845483779907},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.4576498568058014},{"id":"https://openalex.org/C191935318","wikidata":"https://www.wikidata.org/wiki/Q148","display_name":"China","level":2,"score":0.4121585786342621},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4024820327758789},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.23682808876037598},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.19881048798561096},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.1614002287387848},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.14408206939697266},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/sym13010114","is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym13010114","pdf_url":"https://www.mdpi.com/2073-8994/13/1/114/pdf?version=1611049159","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Symmetry","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:0996821172d24b468f9bb4f03c59f7a3","is_oa":true,"landing_page_url":"https://doaj.org/article/0996821172d24b468f9bb4f03c59f7a3","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Symmetry, Vol 13, Iss 1, p 114 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2073-8994/13/1/114/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/sym13010114","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Symmetry; Volume 13; Issue 1; Pages: 114","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/sym13010114","is_oa":true,"landing_page_url":"https://doi.org/10.3390/sym13010114","pdf_url":"https://www.mdpi.com/2073-8994/13/1/114/pdf?version=1611049159","source":{"id":"https://openalex.org/S190787756","display_name":"Symmetry","issn_l":"2073-8994","issn":["2073-8994"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Symmetry","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W3119589878.pdf"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W333822588","https://openalex.org/W1139079233","https://openalex.org/W1505973757","https://openalex.org/W1559507539","https://openalex.org/W1956262746","https://openalex.org/W2009901970","https://openalex.org/W2010769454","https://openalex.org/W2027805686","https://openalex.org/W2035707254","https://openalex.org/W2037543817","https://openalex.org/W2056991698","https://openalex.org/W2075396789","https://openalex.org/W2088539168","https://openalex.org/W2091152442","https://openalex.org/W2133073413","https://openalex.org/W2149876912","https://openalex.org/W2158288838","https://openalex.org/W2185239270","https://openalex.org/W2315344717","https://openalex.org/W2365247660","https://openalex.org/W2379468706","https://openalex.org/W2384434513","https://openalex.org/W2572003091","https://openalex.org/W2767368208","https://openalex.org/W2906042139","https://openalex.org/W2911302046","https://openalex.org/W3021252861","https://openalex.org/W3145962187","https://openalex.org/W3152061496","https://openalex.org/W6629924790","https://openalex.org/W6641138474","https://openalex.org/W6659262094","https://openalex.org/W6669467852"],"related_works":["https://openalex.org/W2350270224","https://openalex.org/W2354620178","https://openalex.org/W600967366","https://openalex.org/W4403952488","https://openalex.org/W2383989146","https://openalex.org/W2351486628","https://openalex.org/W2390481881","https://openalex.org/W2791039681","https://openalex.org/W2329255431","https://openalex.org/W2276234942"],"abstract_inverted_index":{"The":[0,76,167],"systematic":[1],"and":[2,13,18,37,53,62,101,122,146,212,229],"reasonable":[3],"prediction":[4,35,60,180,216],"of":[5,20,24,42,55,90,97,111,115,118,150,174,181,193,203,206,221,224],"pig":[6,29,43,72,91,120,130,144,182],"population":[7,34,58,73,145,183],"is":[8,23,184],"the":[9,16,28,33,40,50,56,71,83,112,116,119,142,147,165,171,179,190,197,200,204,215,218,222],"basis":[10],"for":[11],"balance":[12],"symmetry":[14],"between":[15],"supply":[17,176,226],"demand":[19],"hogs,":[21],"which":[22],"great":[25],"significance":[26],"to":[27,39,49,128,140,161,188],"industry.":[30],"Based":[31],"on":[32,178],"model":[36,61,67,78,89,96,110,127,173],"according":[38],"principle":[41,52],"months":[44],"transfer,":[45],"this":[46,133],"paper":[47],"referred":[48],"modeling":[51],"method":[54],"discrete":[57],"quantity":[59,117,192,223],"established":[63,81],"a":[64,87,124],"related":[65,125],"index":[66,126],"that":[68,170],"can":[69],"reflect":[70],"development":[74],"process.":[75],"forecasting":[77,172],"we":[79],"have":[80],"includes":[82],"following":[84],"models:":[85],"(a)":[86],"recursive":[88],"population,":[92,121],"(b)":[93],"an":[94,108,135,185],"estimation":[95,109],"new":[98],"kept":[99],"piglets":[100],"breeding":[102],"sows":[103],"in":[104,156,164],"each":[105],"month,":[106],"(c)":[107],"initial":[113],"state":[114],"(d)":[123],"calculate":[129],"population.":[131],"On":[132],"basis,":[134],"example":[136],"calculation":[137],"was":[138,210,227],"made":[139],"predict":[141],"monthly":[143],"quantitative":[148],"distribution":[149],"pigs":[151],"with":[152],"different":[153],"age":[154],"groups":[155],"China":[157],"from":[158],"January":[159],"2016":[160],"March":[162],"2018":[163],"future.":[166],"results":[168],"showed":[169],"pork":[175,194,225],"based":[177],"effective":[186],"perspective":[187],"study":[189],"future":[191],"supply.":[195],"In":[196,214],"fitting":[198],"stage,":[199,217],"relative":[201,219],"error":[202,220],"number":[205],"slaughtered":[207],"fattened":[208],"hogs":[209],"0.0332":[211],"0.0368.":[213],"0.0618":[228],"0.0578.":[230]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2021-01-18T00:00:00"}
