{"id":"https://openalex.org/W2005906554","doi":"https://doi.org/10.1016/s0020-0190(98)00029-5","title":"Bushiness and a tight worst-case upper bound on the search number of a simple polygon","display_name":"Bushiness and a tight worst-case upper bound on the search number of a simple polygon","publication_year":1998,"publication_date":"1998-04-01","ids":{"openalex":"https://openalex.org/W2005906554","doi":"https://doi.org/10.1016/s0020-0190(98)00029-5","mag":"2005906554"},"language":"en","primary_location":{"id":"doi:10.1016/s0020-0190(98)00029-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0020-0190(98)00029-5","pdf_url":null,"source":{"id":"https://openalex.org/S147953040","display_name":"Information Processing Letters","issn_l":"0020-0190","issn":["0020-0190","1872-6119"],"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":"Information Processing Letters","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/A5101685358","display_name":"I. Suzuki","orcid":"https://orcid.org/0000-0002-9677-2843"},"institutions":[{"id":"https://openalex.org/I43579087","display_name":"University of Wisconsin\u2013Milwaukee","ror":"https://ror.org/031q21x57","country_code":"US","type":"education","lineage":["https://openalex.org/I43579087"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Ichiro Suzuki","raw_affiliation_strings":["Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, P.O. Box 784, Milwaukee, WI 53201, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, P.O. Box 784, Milwaukee, WI 53201, USA","institution_ids":["https://openalex.org/I43579087"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111575379","display_name":"Masafumi Yamashita","orcid":null},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masafumi Yamashita","raw_affiliation_strings":["Department of Electrical Engineering, Faculty of Engineering, Hiroshima University, Kagamiyama, Higashi-Hiroshima 739, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Faculty of Engineering, Hiroshima University, Kagamiyama, Higashi-Hiroshima 739, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016167954","display_name":"Hideki Umemoto","orcid":null},"institutions":[{"id":"https://openalex.org/I4210128225","display_name":"Anritsu (Japan)","ror":"https://ror.org/032qryz87","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210128225"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideki Umemoto","raw_affiliation_strings":["Technology Center, Anritsu Corporation, Onna. Atsugi 243, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technology Center, Anritsu Corporation, Onna. Atsugi 243, Japan","institution_ids":["https://openalex.org/I4210128225"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005855234","display_name":"Tsunehiko Kameda","orcid":"https://orcid.org/0000-0002-6474-467X"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Tsunehiko Kameda","raw_affiliation_strings":["School of Computing Science, Simon Fraser University, Burnaby, Vancouver, BC, Canada V5A 1S6"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computing Science, Simon Fraser University, Burnaby, Vancouver, BC, Canada V5A 1S6","institution_ids":["https://openalex.org/I18014758"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5101685358"],"corresponding_institution_ids":["https://openalex.org/I43579087"],"apc_list":{"value":2040,"currency":"USD","value_usd":2040},"apc_paid":null,"fwci":91.7412,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.99692649,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"66","issue":"1","first_page":"49","last_page":"52"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12158","display_name":"Guidance and Control Systems","score":0.9975000023841858,"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/T12158","display_name":"Guidance and Control Systems","score":0.9975000023841858,"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/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9965999722480774,"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/T11574","display_name":"Artificial Intelligence in Games","score":0.9962999820709229,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.7704216241836548},{"id":"https://openalex.org/keywords/simple-polygon","display_name":"Simple polygon","score":0.7460253238677979},{"id":"https://openalex.org/keywords/polygon","display_name":"Polygon (computer graphics)","score":0.6675304174423218},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.6643218994140625},{"id":"https://openalex.org/keywords/visibility","display_name":"Visibility","score":0.5932744741439819},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5890699028968811},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4851554036140442},{"id":"https://openalex.org/keywords/visibility-polygon","display_name":"Visibility polygon","score":0.47599780559539795},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4391997456550598},{"id":"https://openalex.org/keywords/monotone-polygon","display_name":"Monotone polygon","score":0.19825267791748047},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.09431847929954529},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.059349387884140015},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.04769125580787659}],"concepts":[{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.7704216241836548},{"id":"https://openalex.org/C197949415","wikidata":"https://www.wikidata.org/wiki/Q782746","display_name":"Simple polygon","level":3,"score":0.7460253238677979},{"id":"https://openalex.org/C190694206","wikidata":"https://www.wikidata.org/wiki/Q3276654","display_name":"Polygon (computer graphics)","level":3,"score":0.6675304174423218},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.6643218994140625},{"id":"https://openalex.org/C123403432","wikidata":"https://www.wikidata.org/wiki/Q654068","display_name":"Visibility","level":2,"score":0.5932744741439819},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5890699028968811},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4851554036140442},{"id":"https://openalex.org/C1449246","wikidata":"https://www.wikidata.org/wiki/Q7936080","display_name":"Visibility polygon","level":4,"score":0.47599780559539795},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4391997456550598},{"id":"https://openalex.org/C2834757","wikidata":"https://www.wikidata.org/wiki/Q4925424","display_name":"Monotone polygon","level":2,"score":0.19825267791748047},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.09431847929954529},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.059349387884140015},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.04769125580787659},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0020-0190(98)00029-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0020-0190(98)00029-5","pdf_url":null,"source":{"id":"https://openalex.org/S147953040","display_name":"Information Processing Letters","issn_l":"0020-0190","issn":["0020-0190","1872-6119"],"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":"Information Processing Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Climate action","score":0.7300000190734863,"id":"https://metadata.un.org/sdg/13"}],"awards":[{"id":"https://openalex.org/G2324553743","display_name":null,"funder_award_id":"07680360","funder_id":"https://openalex.org/F4320320912","funder_display_name":"Ministry of Education, Culture, Sports, Science and Technology"},{"id":"https://openalex.org/G581627021","display_name":null,"funder_award_id":"07243219","funder_id":"https://openalex.org/F4320320912","funder_display_name":"Ministry of Education, Culture, Sports, Science and Technology"},{"id":"https://openalex.org/G715191940","display_name":"Distributed Methods for Controlling Multiple Mobile Robots","funder_award_id":"9307506","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G979873461","display_name":null,"funder_award_id":"NOOO14-94-I-0284","funder_id":"https://openalex.org/F4320337345","funder_display_name":"Office of Naval Research"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320320912","display_name":"Ministry of Education, Culture, Sports, Science and Technology","ror":"https://ror.org/048rj2z13"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"},{"id":"https://openalex.org/F4320337345","display_name":"Office of Naval Research","ror":"https://ror.org/00rk2pe57"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1982770663","https://openalex.org/W2033649214","https://openalex.org/W2089676490","https://openalex.org/W2143211417","https://openalex.org/W2154788235","https://openalex.org/W2166655837","https://openalex.org/W6645613019","https://openalex.org/W6681350585"],"related_works":["https://openalex.org/W2608536130","https://openalex.org/W2154329468","https://openalex.org/W53644101","https://openalex.org/W2987051945","https://openalex.org/W2372903818","https://openalex.org/W1825136300","https://openalex.org/W2102467404","https://openalex.org/W2030848465","https://openalex.org/W2182340620","https://openalex.org/W2023314550"],"abstract_inverted_index":null,"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":4}],"updated_date":"2026-08-06T08:24:18.245995","created_date":"2025-10-10T00:00:00"}