{"id":"https://openalex.org/W7203858077","doi":"https://doi.org/10.1007/s12145-026-02217-4","title":"Nystr\u00f6m least-squares collocation for regional geoid modeling with a large dataset","display_name":"Nystr\u00f6m least-squares collocation for regional geoid modeling with a large dataset","publication_year":2026,"publication_date":"2026-08-22","ids":{"openalex":"https://openalex.org/W7203858077","doi":"https://doi.org/10.1007/s12145-026-02217-4"},"language":"en","primary_location":{"id":"doi:10.1007/s12145-026-02217-4","doi":"https://doi.org/10.1007/s12145-026-02217-4","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s12145-026-02217-4","pdf_url":null,"source":{"id":"https://openalex.org/S198914822","display_name":"Earth Science Informatics","issn_l":"1865-0473","issn":["1865-0473","1865-0481"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Earth Science Informatics","raw_type":"journal-article"},"volume":null,"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/A5147754844","display_name":"Xun Zhang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I25757504","display_name":"China University of Mining and Technology","ror":"https://ror.org/01xt2dr21","country_code":"CN","type":"education","lineage":["https://openalex.org/I25757504"]},{"id":"https://openalex.org/I2800710378","display_name":"Naval University of Engineering","ror":"https://ror.org/056vyez31","country_code":"CN","type":"education","lineage":["https://openalex.org/I2800710378"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xun Zhang","raw_affiliation_strings":["School of Electrical Engineering, Naval University of Engineering, Wuhan, 430033, China","School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Naval University of Engineering, Wuhan, 430033, China","institution_ids":["https://openalex.org/I2800710378"]},{"raw_affiliation_string":"School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China","institution_ids":["https://openalex.org/I25757504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079493965","display_name":"Guobin Chang","orcid":"https://orcid.org/0000-0001-6392-3265","observed_orcids":["https://orcid.org/0000-0001-6392-3265"]},"institutions":[{"id":"https://openalex.org/I25757504","display_name":"China University of Mining and Technology","ror":"https://ror.org/01xt2dr21","country_code":"CN","type":"education","lineage":["https://openalex.org/I25757504"]},{"id":"https://openalex.org/I4210137963","display_name":"China Railway Design Corporation (China)","ror":"https://ror.org/03x1j8d96","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210137963"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Guobin Chang","raw_affiliation_strings":["China Railway Design Corporation, Tianjin, 300308, China","School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"China Railway Design Corporation, Tianjin, 300308, China","institution_ids":["https://openalex.org/I4210137963"]},{"raw_affiliation_string":"School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China","institution_ids":["https://openalex.org/I25757504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018096331","display_name":"Hefang Bian","orcid":"https://orcid.org/0000-0002-4063-0512","observed_orcids":["https://orcid.org/0000-0002-4063-0512"]},"institutions":[{"id":"https://openalex.org/I25757504","display_name":"China University of Mining and Technology","ror":"https://ror.org/01xt2dr21","country_code":"CN","type":"education","lineage":["https://openalex.org/I25757504"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hefang Bian","raw_affiliation_strings":["School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Environmental Sciences and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China","institution_ids":["https://openalex.org/I25757504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040506688","display_name":"Xiannan Han","orcid":"https://orcid.org/0000-0002-4077-3580","observed_orcids":["https://orcid.org/0000-0002-4077-3580"]},"institutions":[{"id":"https://openalex.org/I4210137963","display_name":"China Railway Design Corporation (China)","ror":"https://ror.org/03x1j8d96","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210137963"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiannan Han","raw_affiliation_strings":["China Railway Design Corporation, Tianjin, 300308, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"China Railway Design Corporation, Tianjin, 300308, China","institution_ids":["https://openalex.org/I4210137963"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057006239","display_name":"Houpu Li","orcid":"https://orcid.org/0000-0002-0560-6656","observed_orcids":["https://orcid.org/0000-0002-0560-6656"]},"institutions":[{"id":"https://openalex.org/I2800710378","display_name":"Naval University of Engineering","ror":"https://ror.org/056vyez31","country_code":"CN","type":"education","lineage":["https://openalex.org/I2800710378"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Houpu Li","raw_affiliation_strings":["School of Electrical Engineering, Naval University of Engineering, Wuhan, 430033, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Naval University of Engineering, Wuhan, 430033, China","institution_ids":["https://openalex.org/I2800710378"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5018096331","https://openalex.org/A5079493965"],"corresponding_institution_ids":["https://openalex.org/I25757504","https://openalex.org/I4210137963"],"apc_list":{"value":3890,"currency":"USD","value_usd":3890},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.59139869,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"19","issue":"10","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9520999789237976,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9520999789237976,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13487","display_name":"Statistical and numerical algorithms","score":0.04039999842643738,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","score":0.0017999999690800905,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/least-squares-collocation","display_name":"least squares collocation","score":0.8830000162124634},{"id":"https://openalex.org/keywords/nystrom-method","display_name":"Nystr\u00f6m method","score":0.8569999933242798},{"id":"https://openalex.org/keywords/low-rank-approximation","display_name":"low-rank approximation","score":0.949999988079071},{"id":"https://openalex.org/keywords/big-data","display_name":"big data","score":0.5519999861717224},{"id":"https://openalex.org/keywords/computational-cost-reduction","display_name":"computational complexity reduction","score":0.699999988079071},{"id":"https://openalex.org/keywords/noise-robustness","display_name":"noise robustness","score":0.7009999752044678}],"concepts":[{"id":"https://openalex.org/C80989030","wikidata":"https://www.wikidata.org/wiki/Q185969","display_name":"Geoid","level":3,"score":0.7343000173568726},{"id":"https://openalex.org/C80023036","wikidata":"https://www.wikidata.org/wiki/Q5147531","display_name":"Collocation (remote sensing)","level":2,"score":0.5659999847412109},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.42570000886917114},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.41679999232292175},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3912999927997589},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.34369999170303345},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2971999943256378},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.2653000056743622},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.26159998774528503},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.24770000576972961}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s12145-026-02217-4","doi":"https://doi.org/10.1007/s12145-026-02217-4","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s12145-026-02217-4","pdf_url":null,"source":{"id":"https://openalex.org/S198914822","display_name":"Earth Science Informatics","issn_l":"1865-0473","issn":["1865-0473","1865-0481"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Earth Science Informatics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W131807398","https://openalex.org/W1978484700","https://openalex.org/W2002325965","https://openalex.org/W2004026774","https://openalex.org/W2022823194","https://openalex.org/W2064980127","https://openalex.org/W2082624758","https://openalex.org/W2139182243","https://openalex.org/W2152683735","https://openalex.org/W2280319117","https://openalex.org/W2790652521","https://openalex.org/W2901941669","https://openalex.org/W2909623457","https://openalex.org/W2954301279","https://openalex.org/W3156025714","https://openalex.org/W3189640684","https://openalex.org/W3194041954","https://openalex.org/W3210899815","https://openalex.org/W4255340434","https://openalex.org/W4321187269","https://openalex.org/W4402527621","https://openalex.org/W4405511095"],"related_works":["https://openalex.org/W2961096647","https://openalex.org/W4408993362","https://openalex.org/W2058860361","https://openalex.org/W3189640684","https://openalex.org/W2348510838","https://openalex.org/W2891425130","https://openalex.org/W2167703270","https://openalex.org/W2372569653","https://openalex.org/W7222947849","https://openalex.org/W2110484224"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-09-26T08:19:03.415552","created_date":"2026-08-22T00:00:00"}