{"id":"https://openalex.org/W2062569227","doi":"https://doi.org/10.1016/s0262-8856(99)00045-1","title":"A system to place observers on a polyhedral terrain in polynomial time","display_name":"A system to place observers on a polyhedral terrain in polynomial time","publication_year":2000,"publication_date":"2000-07-01","ids":{"openalex":"https://openalex.org/W2062569227","doi":"https://doi.org/10.1016/s0262-8856(99)00045-1","mag":"2062569227"},"language":"en","primary_location":{"id":"doi:10.1016/s0262-8856(99)00045-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0262-8856(99)00045-1","pdf_url":null,"source":{"id":"https://openalex.org/S177430994","display_name":"Image and Vision Computing","issn_l":"0262-8856","issn":["0262-8856","1872-8138"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Image and Vision Computing","raw_type":"journal-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/A5001535161","display_name":"Maur\u00edcio Marengoni","orcid":"https://orcid.org/0000-0002-6830-1067"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M. Marengoni","raw_affiliation_strings":["Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024491677","display_name":"Bruce A. Draper","orcid":"https://orcid.org/0000-0001-8560-541X"},"institutions":[{"id":"https://openalex.org/I92446798","display_name":"Colorado State University","ror":"https://ror.org/03k1gpj17","country_code":"US","type":"education","lineage":["https://openalex.org/I92446798"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B.A. Draper","raw_affiliation_strings":["Department of Computer Science, Colorado State University, Ft. Collins, CO 80523, USA","Department of Computer Science, Colorado State University Ft. Collins, CO 80523, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Colorado State University, Ft. Collins, CO 80523, USA","institution_ids":["https://openalex.org/I92446798"]},{"raw_affiliation_string":"Department of Computer Science, Colorado State University Ft. Collins, CO 80523, USA","institution_ids":["https://openalex.org/I92446798"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030703335","display_name":"Andrew J. Hanson","orcid":"https://orcid.org/0000-0001-6527-6559"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"A. Hanson","raw_affiliation_strings":["Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037538509","display_name":"Ramesh K. Sitaraman","orcid":"https://orcid.org/0000-0003-0558-6875"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. Sitaraman","raw_affiliation_strings":["Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Massachusetts, Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Computer Science, University of Massachusetts. Amherst, MA 01003, USA","institution_ids":["https://openalex.org/I24603500"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5030703335"],"corresponding_institution_ids":["https://openalex.org/I24603500"],"apc_list":{"value":2270,"currency":"USD","value_usd":2270},"apc_paid":null,"fwci":3.1173,"has_fulltext":false,"cited_by_count":97,"citation_normalized_percentile":{"value":0.91648189,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"18","issue":"10","first_page":"773","last_page":"780"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9937000274658203,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/T10586","display_name":"Robotic Path Planning Algorithms","score":0.9909999966621399,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/terrain","display_name":"Terrain","score":0.763156533241272},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.6866532564163208},{"id":"https://openalex.org/keywords/visibility","display_name":"Visibility","score":0.656732439994812},{"id":"https://openalex.org/keywords/observer","display_name":"Observer (physics)","score":0.5674509406089783},{"id":"https://openalex.org/keywords/set-cover-problem","display_name":"Set cover problem","score":0.5341823101043701},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5220882296562195},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.506463885307312},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4425247311592102},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4097825586795807},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.40380215644836426},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.37003105878829956},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.36858391761779785},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3511044383049011},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3333889842033386},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.0916593074798584}],"concepts":[{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.763156533241272},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.6866532564163208},{"id":"https://openalex.org/C123403432","wikidata":"https://www.wikidata.org/wiki/Q654068","display_name":"Visibility","level":2,"score":0.656732439994812},{"id":"https://openalex.org/C2780704645","wikidata":"https://www.wikidata.org/wiki/Q9251458","display_name":"Observer (physics)","level":2,"score":0.5674509406089783},{"id":"https://openalex.org/C100808899","wikidata":"https://www.wikidata.org/wiki/Q1192100","display_name":"Set cover problem","level":3,"score":0.5341823101043701},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5220882296562195},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.506463885307312},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4425247311592102},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4097825586795807},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.40380215644836426},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.37003105878829956},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36858391761779785},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3511044383049011},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3333889842033386},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0916593074798584},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","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},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1016/s0262-8856(99)00045-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0262-8856(99)00045-1","pdf_url":null,"source":{"id":"https://openalex.org/S177430994","display_name":"Image and Vision Computing","issn_l":"0262-8856","issn":["0262-8856","1872-8138"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Image and Vision Computing","raw_type":"journal-article"},{"id":"pmh:oai:scholarworks.umass.edu:cs_faculty_pubs-2101","is_oa":false,"landing_page_url":"https://scholarworks.umass.edu/cs_faculty_pubs/1102","pdf_url":null,"source":{"id":"https://openalex.org/S4306402240","display_name":"ScholarWorks@UMassAmherst (University of Massachusetts Amherst)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I24603500","host_organization_name":"University of Massachusetts Amherst","host_organization_lineage":["https://openalex.org/I24603500"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Computer Science Department Faculty Publication Series","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.135.3713","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.135.3713","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.colostate.edu/~draper/publications/marengoni_ivcj.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.7.1270","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.7.1270","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ftp://vis-ftp.cs.umass.edu/Papers/marengoni/ivcj00.ps.gz","raw_type":"text"},{"id":"pmh:oai:scholarworks.umass.edu:20.500.14394/9601","is_oa":false,"landing_page_url":"https://hdl.handle.net/20.500.14394/9601","pdf_url":null,"source":{"id":"https://openalex.org/S4306402057","display_name":"Scholarworks (University of Massachusetts Amherst)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I24603500","host_organization_name":"University of Massachusetts Amherst","host_organization_lineage":["https://openalex.org/I24603500"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"published","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.7599999904632568,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W187252362","https://openalex.org/W193938304","https://openalex.org/W1570805656","https://openalex.org/W1967005434","https://openalex.org/W2005028766","https://openalex.org/W2005314985","https://openalex.org/W2024145315","https://openalex.org/W2030781850","https://openalex.org/W2038280788","https://openalex.org/W2047198713","https://openalex.org/W2068720912","https://openalex.org/W2085550119","https://openalex.org/W2087422927","https://openalex.org/W2094658339","https://openalex.org/W2116854100","https://openalex.org/W2123652094","https://openalex.org/W2129879687","https://openalex.org/W2752885492","https://openalex.org/W2986240932","https://openalex.org/W3041834803","https://openalex.org/W4213009134","https://openalex.org/W4213170981","https://openalex.org/W6600577311","https://openalex.org/W6607571492"],"related_works":["https://openalex.org/W1995875282","https://openalex.org/W2497633036","https://openalex.org/W2105605544","https://openalex.org/W2170917786","https://openalex.org/W2383500046","https://openalex.org/W3145090562","https://openalex.org/W2107288589","https://openalex.org/W2145777134","https://openalex.org/W2951839510","https://openalex.org/W1583783600"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":4}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
