{"id":"https://openalex.org/W2031264473","doi":"https://doi.org/10.1016/s0020-0190(98)00003-9","title":"The NPO-completeness of the longest Hamiltonian cycle problem","display_name":"The NPO-completeness of the longest Hamiltonian cycle problem","publication_year":1998,"publication_date":"1998-02-01","ids":{"openalex":"https://openalex.org/W2031264473","doi":"https://doi.org/10.1016/s0020-0190(98)00003-9","mag":"2031264473"},"language":"en","primary_location":{"id":"doi:10.1016/s0020-0190(98)00003-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0020-0190(98)00003-9","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/A5083388985","display_name":"Quincy Wu","orcid":"https://orcid.org/0000-0002-4867-5627"},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Q.S. Wu","raw_affiliation_strings":["Department of Computer Science, National Tsing Hua University, Hsinchu 30043, Taiwan, ROC"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, National Tsing Hua University, Hsinchu 30043, Taiwan, ROC","institution_ids":["https://openalex.org/I25846049"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033888490","display_name":"Kun\u2010Mao Chao","orcid":"https://orcid.org/0000-0003-2837-1279"},"institutions":[{"id":"https://openalex.org/I177918364","display_name":"Providence University","ror":"https://ror.org/03fcpsq87","country_code":"TW","type":"education","lineage":["https://openalex.org/I177918364"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"K.M. Chao","raw_affiliation_strings":["Department of Computer Science, Providence University, Shalu, Taichung Hsien 43309, Taiwan, ROC"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Providence University, Shalu, Taichung Hsien 43309, Taiwan, ROC","institution_ids":["https://openalex.org/I177918364"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016471892","display_name":"R.C.T. Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I177918364","display_name":"Providence University","ror":"https://ror.org/03fcpsq87","country_code":"TW","type":"education","lineage":["https://openalex.org/I177918364"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"R.C.T. Lee","raw_affiliation_strings":["Department of Computer Science, Providence University, Shalu, Taichung Hsien 43309, Taiwan, ROC"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Providence University, Shalu, Taichung Hsien 43309, Taiwan, ROC","institution_ids":["https://openalex.org/I177918364"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5016471892"],"corresponding_institution_ids":["https://openalex.org/I177918364"],"apc_list":{"value":2200,"currency":"USD","value_usd":2200},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.16341077,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"65","issue":"3","first_page":"119","last_page":"123"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T10374","display_name":"Advanced Graph Theory Research","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T12292","display_name":"Graph Theory and Algorithms","score":0.9890000224113464,"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/completeness","display_name":"Completeness (order theory)","score":0.7272292375564575},{"id":"https://openalex.org/keywords/hamiltonian-path-problem","display_name":"Hamiltonian path problem","score":0.5508803725242615},{"id":"https://openalex.org/keywords/hamiltonian-path","display_name":"Hamiltonian path","score":0.5449250936508179},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5086034536361694},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3687044382095337},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.35586804151535034},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.06281325221061707}],"concepts":[{"id":"https://openalex.org/C17231256","wikidata":"https://www.wikidata.org/wiki/Q5156540","display_name":"Completeness (order theory)","level":2,"score":0.7272292375564575},{"id":"https://openalex.org/C104737047","wikidata":"https://www.wikidata.org/wiki/Q987652","display_name":"Hamiltonian path problem","level":4,"score":0.5508803725242615},{"id":"https://openalex.org/C86524685","wikidata":"https://www.wikidata.org/wiki/Q273037","display_name":"Hamiltonian path","level":3,"score":0.5449250936508179},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5086034536361694},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3687044382095337},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.35586804151535034},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.06281325221061707},{"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)00003-9","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0020-0190(98)00003-9","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":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1562115776","https://openalex.org/W1976157781","https://openalex.org/W2011039300","https://openalex.org/W2015101476","https://openalex.org/W2036265926","https://openalex.org/W2038225707","https://openalex.org/W2053913299","https://openalex.org/W2069323107","https://openalex.org/W2086917808","https://openalex.org/W6633596644","https://openalex.org/W6638117189","https://openalex.org/W6659573362","https://openalex.org/W7008583937"],"related_works":["https://openalex.org/W4387272283","https://openalex.org/W1618127724","https://openalex.org/W4299647289","https://openalex.org/W2952856011","https://openalex.org/W2155631825","https://openalex.org/W2011032737","https://openalex.org/W2078431586","https://openalex.org/W2069133957","https://openalex.org/W2027410688","https://openalex.org/W4243020994"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
