{"id":"https://openalex.org/W2084770565","doi":"https://doi.org/10.1016/0004-3702(94)90107-4","title":"On the complexity of labeling perspective projections of polyhedral scenes","display_name":"On the complexity of labeling perspective projections of polyhedral scenes","publication_year":1994,"publication_date":"1994-10-01","ids":{"openalex":"https://openalex.org/W2084770565","doi":"https://doi.org/10.1016/0004-3702(94)90107-4","mag":"2084770565"},"language":"en","primary_location":{"id":"doi:10.1016/0004-3702(94)90107-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0004-3702(94)90107-4","pdf_url":null,"source":{"id":"https://openalex.org/S196139623","display_name":"Artificial Intelligence","issn_l":"0004-3702","issn":["0004-3702","1872-7921"],"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":"Artificial Intelligence","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/A5102804689","display_name":"Pietro Parodi","orcid":"https://orcid.org/0000-0002-5297-0960"},"institutions":[{"id":"https://openalex.org/I4210125647","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Genova","ror":"https://ror.org/02v89pq06","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210125647"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pietro Parodi","raw_affiliation_strings":["Dipartimento di Fisica, Via Dodecaneso 33, 16146 Genova, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica, Via Dodecaneso 33, 16146 Genova, Italy","institution_ids":["https://openalex.org/I4210125647"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056832410","display_name":"Vincent Torre","orcid":"https://orcid.org/0000-0001-8133-3584"},"institutions":[{"id":"https://openalex.org/I4210125647","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Genova","ror":"https://ror.org/02v89pq06","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210125647"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Vincent Torre","raw_affiliation_strings":["Dipartimento di Fisica, Via Dodecaneso 33, 16146 Genova, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica, Via Dodecaneso 33, 16146 Genova, Italy","institution_ids":["https://openalex.org/I4210125647"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5056832410"],"corresponding_institution_ids":["https://openalex.org/I4210125647"],"apc_list":{"value":3670,"currency":"USD","value_usd":3670},"apc_paid":null,"fwci":1.5706,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.84241497,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"70","issue":"1-2","first_page":"239","last_page":"276"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12923","display_name":"Digital Image Processing Techniques","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T12923","display_name":"Digital Image Processing Techniques","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9993000030517578,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9977999925613403,"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/line-segment","display_name":"Line segment","score":0.6782594919204712},{"id":"https://openalex.org/keywords/perspective","display_name":"Perspective (graphical)","score":0.6260190010070801},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.5857198238372803},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5517728328704834},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.549077033996582},{"id":"https://openalex.org/keywords/line","display_name":"Line (geometry)","score":0.5205527544021606},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5073522925376892},{"id":"https://openalex.org/keywords/completeness","display_name":"Completeness (order theory)","score":0.486433744430542},{"id":"https://openalex.org/keywords/boundary","display_name":"Boundary (topology)","score":0.4854603409767151},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.4846342206001282},{"id":"https://openalex.org/keywords/computational-geometry","display_name":"Computational geometry","score":0.4535064697265625},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.446820467710495},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4207669496536255},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.3748503625392914},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3505629301071167},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.33589863777160645},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.2519473731517792},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.07294070720672607}],"concepts":[{"id":"https://openalex.org/C182124507","wikidata":"https://www.wikidata.org/wiki/Q166154","display_name":"Line segment","level":2,"score":0.6782594919204712},{"id":"https://openalex.org/C12713177","wikidata":"https://www.wikidata.org/wiki/Q1900281","display_name":"Perspective (graphical)","level":2,"score":0.6260190010070801},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.5857198238372803},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5517728328704834},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.549077033996582},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.5205527544021606},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5073522925376892},{"id":"https://openalex.org/C17231256","wikidata":"https://www.wikidata.org/wiki/Q5156540","display_name":"Completeness (order theory)","level":2,"score":0.486433744430542},{"id":"https://openalex.org/C62354387","wikidata":"https://www.wikidata.org/wiki/Q875399","display_name":"Boundary (topology)","level":2,"score":0.4854603409767151},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.4846342206001282},{"id":"https://openalex.org/C29123130","wikidata":"https://www.wikidata.org/wiki/Q874709","display_name":"Computational geometry","level":2,"score":0.4535064697265625},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.446820467710495},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4207669496536255},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3748503625392914},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3505629301071167},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.33589863777160645},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.2519473731517792},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.07294070720672607},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0004-3702(94)90107-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0004-3702(94)90107-4","pdf_url":null,"source":{"id":"https://openalex.org/S196139623","display_name":"Artificial Intelligence","issn_l":"0004-3702","issn":["0004-3702","1872-7921"],"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":"Artificial Intelligence","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.41999998688697815,"display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W34885787","https://openalex.org/W1597020313","https://openalex.org/W1597474747","https://openalex.org/W1965915487","https://openalex.org/W1983039602","https://openalex.org/W1990339218","https://openalex.org/W1996480554","https://openalex.org/W2007117931","https://openalex.org/W2030186544","https://openalex.org/W2033918199","https://openalex.org/W2036265926","https://openalex.org/W2042119491","https://openalex.org/W2065278115","https://openalex.org/W2066577300","https://openalex.org/W2072073679","https://openalex.org/W2081392354","https://openalex.org/W2089396017","https://openalex.org/W2096411397","https://openalex.org/W2111736590","https://openalex.org/W2115414637","https://openalex.org/W2137788315","https://openalex.org/W2155880278","https://openalex.org/W6601424136","https://openalex.org/W6635490985","https://openalex.org/W6659573362","https://openalex.org/W6675077705","https://openalex.org/W6849932642"],"related_works":["https://openalex.org/W1589381382","https://openalex.org/W961142965","https://openalex.org/W2011903683","https://openalex.org/W2042426695","https://openalex.org/W2737119934","https://openalex.org/W2029469528","https://openalex.org/W2132026455","https://openalex.org/W1575958304","https://openalex.org/W1941777660","https://openalex.org/W2088848545"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}