{"id":"https://openalex.org/W3109737720","doi":"https://doi.org/10.1080/13658816.2020.1844207","title":"A data relocation approach for terrain surface analysis on multi-GPU systems: a case study on the total viewshed problem","display_name":"A data relocation approach for terrain surface analysis on multi-GPU systems: a case study on the total viewshed problem","publication_year":2020,"publication_date":"2020-12-04","ids":{"openalex":"https://openalex.org/W3109737720","doi":"https://doi.org/10.1080/13658816.2020.1844207","mag":"3109737720"},"language":"en","primary_location":{"id":"doi:10.1080/13658816.2020.1844207","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2020.1844207","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-article"},"type":"article","indexed_in":["arxiv","crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2003.02200","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5063420411","display_name":"Andres J. Sanchez\u2010Fernandez","orcid":"https://orcid.org/0000-0001-6743-3570"},"institutions":[{"id":"https://openalex.org/I82767444","display_name":"Universidad de M\u00e1laga","ror":"https://ror.org/036b2ww28","country_code":"ES","type":"education","lineage":["https://openalex.org/I82767444"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"A. J. Sanchez-Fernandez","raw_affiliation_strings":["Department of Computer Architecture, University of Malaga, Malaga, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computer Architecture, University of Malaga, Malaga, Spain","institution_ids":["https://openalex.org/I82767444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061737207","display_name":"Luis F. Romero","orcid":"https://orcid.org/0000-0003-2959-2030"},"institutions":[{"id":"https://openalex.org/I82767444","display_name":"Universidad de M\u00e1laga","ror":"https://ror.org/036b2ww28","country_code":"ES","type":"education","lineage":["https://openalex.org/I82767444"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"L. F. Romero","raw_affiliation_strings":["Department of Computer Architecture, University of Malaga, Malaga, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computer Architecture, University of Malaga, Malaga, Spain","institution_ids":["https://openalex.org/I82767444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086486105","display_name":"Gerardo Bandera","orcid":"https://orcid.org/0000-0003-0809-1050"},"institutions":[{"id":"https://openalex.org/I82767444","display_name":"Universidad de M\u00e1laga","ror":"https://ror.org/036b2ww28","country_code":"ES","type":"education","lineage":["https://openalex.org/I82767444"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"G. Bandera","raw_affiliation_strings":["Department of Computer Architecture, University of Malaga, Malaga, Spain"],"affiliations":[{"raw_affiliation_string":"Department of Computer Architecture, University of Malaga, Malaga, Spain","institution_ids":["https://openalex.org/I82767444"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057876711","display_name":"Siham Tabik","orcid":"https://orcid.org/0000-0003-4093-5356"},"institutions":[{"id":"https://openalex.org/I173304897","display_name":"Universidad de Granada","ror":"https://ror.org/04njjy449","country_code":"ES","type":"education","lineage":["https://openalex.org/I173304897"]},{"id":"https://openalex.org/I4210095677","display_name":"Instituto Andaluz de Ciencias de la Tierra","ror":"https://ror.org/00v0g9w49","country_code":"ES","type":"facility","lineage":["https://openalex.org/I134820265","https://openalex.org/I4210095677"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"S. Tabik","raw_affiliation_strings":["Andalusian Research Institute in Data Science and Computational Intelligence, University of Granada, Granada, Spain"],"affiliations":[{"raw_affiliation_string":"Andalusian Research Institute in Data Science and Computational Intelligence, University of Granada, Granada, Spain","institution_ids":["https://openalex.org/I4210095677","https://openalex.org/I173304897"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5063420411"],"corresponding_institution_ids":["https://openalex.org/I82767444"],"apc_list":null,"apc_paid":null,"fwci":12.5773,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.98037869,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"35","issue":"8","first_page":"1500","last_page":"1520"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9919000267982483,"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"}},"topics":[{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9919000267982483,"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"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9872000217437744,"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/T10644","display_name":"Cryospheric studies and observations","score":0.9843000173568726,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/viewshed-analysis","display_name":"Viewshed analysis","score":0.9268929958343506},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7656893134117126},{"id":"https://openalex.org/keywords/locality","display_name":"Locality","score":0.575163722038269},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.5721151828765869},{"id":"https://openalex.org/keywords/digital-elevation-model","display_name":"Digital elevation model","score":0.5716365575790405},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.49824953079223633},{"id":"https://openalex.org/keywords/locality-of-reference","display_name":"Locality of reference","score":0.42565348744392395},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.396065890789032},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.38630688190460205},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.15479815006256104},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.12477079033851624}],"concepts":[{"id":"https://openalex.org/C24300010","wikidata":"https://www.wikidata.org/wiki/Q7928833","display_name":"Viewshed analysis","level":2,"score":0.9268929958343506},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7656893134117126},{"id":"https://openalex.org/C2779808786","wikidata":"https://www.wikidata.org/wiki/Q6664603","display_name":"Locality","level":2,"score":0.575163722038269},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.5721151828765869},{"id":"https://openalex.org/C181843262","wikidata":"https://www.wikidata.org/wiki/Q640492","display_name":"Digital elevation model","level":2,"score":0.5716365575790405},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.49824953079223633},{"id":"https://openalex.org/C27602214","wikidata":"https://www.wikidata.org/wiki/Q1868547","display_name":"Locality of reference","level":3,"score":0.42565348744392395},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.396065890789032},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.38630688190460205},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.15479815006256104},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.12477079033851624},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"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/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1080/13658816.2020.1844207","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2020.1844207","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:2003.02200","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2003.02200","pdf_url":"https://arxiv.org/pdf/2003.02200","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"pmh:oai:riuma.uma.es:10630/30394","is_oa":true,"landing_page_url":"https://hdl.handle.net/10630/30394","pdf_url":null,"source":{"id":"https://openalex.org/S4306401385","display_name":"Repositorio Institucional de la Universidad de M\u00e1laga (University of M\u00e1laga)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I82767444","host_organization_name":"Universidad de M\u00e1laga","host_organization_lineage":["https://openalex.org/I82767444"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"AM"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2003.02200","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2003.02200","pdf_url":"https://arxiv.org/pdf/2003.02200","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1304680701","display_name":null,"funder_award_id":"U-Smart-Drive","funder_id":"https://openalex.org/F4320311265","funder_display_name":"Universidad de M\u00e1laga"},{"id":"https://openalex.org/G5439903070","display_name":null,"funder_award_id":"TIN2016-80920-R","funder_id":"https://openalex.org/F4320322930","funder_display_name":"Ministerio de Ciencia e Innovaci\u00f3n"},{"id":"https://openalex.org/G983638960","display_name":null,"funder_award_id":"I Plan Propio de Investigacion","funder_id":"https://openalex.org/F4320311265","funder_display_name":"Universidad de M\u00e1laga"}],"funders":[{"id":"https://openalex.org/F4320311265","display_name":"Universidad de M\u00e1laga","ror":"https://ror.org/036b2ww28"},{"id":"https://openalex.org/F4320322930","display_name":"Ministerio de Ciencia e Innovaci\u00f3n","ror":"https://ror.org/034900433"},{"id":"https://openalex.org/F4320323737","display_name":"Ministerio de Ciencia y Tecnolog\u00eda","ror":"https://ror.org/034900433"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W181107242","https://openalex.org/W619873916","https://openalex.org/W983190870","https://openalex.org/W1266100137","https://openalex.org/W1521785144","https://openalex.org/W1963750912","https://openalex.org/W1974872793","https://openalex.org/W1981405009","https://openalex.org/W1983434219","https://openalex.org/W1992452210","https://openalex.org/W2021185330","https://openalex.org/W2024145315","https://openalex.org/W2029201188","https://openalex.org/W2082299402","https://openalex.org/W2104917647","https://openalex.org/W2121557370","https://openalex.org/W2122982975","https://openalex.org/W2144491243","https://openalex.org/W2171089118","https://openalex.org/W2460207863","https://openalex.org/W2790418360","https://openalex.org/W2804931280","https://openalex.org/W2888723048","https://openalex.org/W2919634752","https://openalex.org/W2974783357","https://openalex.org/W3007886818"],"related_works":["https://openalex.org/W1555349535","https://openalex.org/W2583128298","https://openalex.org/W2053359564","https://openalex.org/W2161159383","https://openalex.org/W1495260638","https://openalex.org/W1511204342","https://openalex.org/W2369125128","https://openalex.org/W2369223577","https://openalex.org/W2010020348","https://openalex.org/W4292078708"],"abstract_inverted_index":{"Digital":[0,61],"Elevation":[1,62],"Models":[2],"(DEMs)":[3],"are":[4,23],"important":[5],"datasets":[6],"for":[7,124],"modelling":[8],"the":[9,68,75,80,96,100,104,111,140,151,155,181,189,193],"line":[10],"of":[11,36,70,82,107,113,177],"sight,":[12],"such":[13,31],"as":[14,117],"radio":[15],"signals,":[16],"sound":[17],"waves":[18],"and":[19,73,98,128,149],"human":[20],"vision.":[21],"These":[22],"commonly":[24,142],"analyzed":[25],"using":[26],"rotational":[27,83],"sweep":[28],"algorithms.":[29,85],"However,":[30],"algorithms":[32],"require":[33],"large":[34],"numbers":[35],"memory":[37,71,97],"accesses":[38,72],"to":[39,135,171],"2D":[40],"arrays":[41],"which,":[42],"despite":[43,168],"being":[44,169],"regular,":[45],"result":[46],"in":[47,51,79,192],"poor":[48],"data":[49,91],"locality":[50,69],"memory.":[52],"Here,":[53],"we":[54,109],"propose":[55],"a":[56,90,118],"new":[57],"methodology":[58],"called":[59],"skewed":[60],"Model":[63],"(sDEM),":[64],"which":[65],"substantially":[66],"improves":[67],"increases":[74],"inherent":[76],"parallelism":[77],"involved":[78],"computation":[81,116],"sweep-based":[84],"In":[86,154,180],"particular,":[87],"sDEM":[88,137,158,184],"applies":[89],"restructuring":[92],"technique":[93],"before":[94],"accessing":[95],"performing":[99],"computation.":[101],"To":[102],"demonstrate":[103],"high":[105],"efficiency":[106],"sDEM,":[108],"use":[110],"problem":[112],"total":[114],"viewshed":[115],"case":[119],"study":[120],"considering":[121],"different":[122],"implementations":[123],"single-core,":[125],"multi-core,":[126],"single-GPU":[127],"multi-GPU":[129],"platforms.":[130],"We":[131],"conducted":[132],"two":[133],"experiments":[134],"compare":[136],"with":[138],"(i)":[139],"most":[141],"used":[143],"geographic":[144],"information":[145],"systems":[146],"(GIS)":[147],"software":[148,167],"(ii)":[150],"state-of-the-art":[152,190],"algorithm.":[153],"first":[156],"experiment,":[157,183],"is":[159,185],"on":[160],"average":[161],"8.8x":[162],"faster":[163,187],"than":[164,188],"current":[165],"GIS":[166],"able":[170],"consider":[172],"only":[173],"few":[174],"points":[175],"because":[176],"their":[178],"limitations.":[179],"second":[182],"827.3x":[186],"algorithm":[191],"best":[194],"case.":[195]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}