{"id":"https://openalex.org/W2180748061","doi":"https://doi.org/10.1007/3-540-45995-2_44","title":"The Level Ancestor Problem Simplified","display_name":"The Level Ancestor Problem Simplified","publication_year":2002,"publication_date":"2002-01-01","ids":{"openalex":"https://openalex.org/W2180748061","doi":"https://doi.org/10.1007/3-540-45995-2_44","mag":"2180748061"},"language":"en","primary_location":{"id":"doi:10.1007/3-540-45995-2_44","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-45995-2_44","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5068761590","display_name":"Michael A. Bender","orcid":"https://orcid.org/0000-0001-7639-530X"},"institutions":[{"id":"https://openalex.org/I59553526","display_name":"Stony Brook University","ror":"https://ror.org/05qghxh33","country_code":"US","type":"education","lineage":["https://openalex.org/I59553526"]},{"id":"https://openalex.org/I1327163397","display_name":"State University of New York","ror":"https://ror.org/01q1z8k08","country_code":"US","type":"education","lineage":["https://openalex.org/I1327163397"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Michael A. Bender","raw_affiliation_strings":["Department of Computer Science, State University of New York at Stony Brook, 11794-4400, Stony Brook, NY, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, State University of New York at Stony Brook, 11794-4400, Stony Brook, NY, USA","institution_ids":["https://openalex.org/I59553526","https://openalex.org/I1327163397"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087023890","display_name":"Mart\u0131\u0301n Farach-Colton","orcid":"https://orcid.org/0000-0003-3616-7788"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]},{"id":"https://openalex.org/I1291425158","display_name":"Google (United States)","ror":"https://ror.org/00njsd438","country_code":"US","type":"company","lineage":["https://openalex.org/I1291425158","https://openalex.org/I4210128969"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mart\u00edn Farach-Colton","raw_affiliation_strings":["Department of Computer Science, Rutgers University, USA","Google Inc, 2400 Bayshore Parkway, Mountain View, 94043, California, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Rutgers University, USA","institution_ids":["https://openalex.org/I102322142"]},{"raw_affiliation_string":"Google Inc, 2400 Bayshore Parkway, Mountain View, 94043, California, USA","institution_ids":["https://openalex.org/I1291425158"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5068761590"],"corresponding_institution_ids":["https://openalex.org/I1327163397","https://openalex.org/I59553526"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.9603,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.89122464,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"508","last_page":"515"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12288","display_name":"Optimization and Search Problems","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T12288","display_name":"Optimization and Search Problems","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11269","display_name":"Algorithms and Data Compression","score":0.9991000294685364,"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"}},{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/ancestor","display_name":"Ancestor","score":0.9850489497184753},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7066801190376282},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.597117006778717},{"id":"https://openalex.org/keywords/most-recent-common-ancestor","display_name":"Most recent common ancestor","score":0.49009597301483154},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.4649340808391571},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.42843097448349},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.37149083614349365},{"id":"https://openalex.org/keywords/phylogenetic-tree","display_name":"Phylogenetic tree","score":0.342673122882843},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20565229654312134},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.1811348795890808},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.139802485704422},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.10273656249046326},{"id":"https://openalex.org/keywords/genetics","display_name":"Genetics","score":0.07594281435012817},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.06645560264587402},{"id":"https://openalex.org/keywords/gene","display_name":"Gene","score":0.06634178757667542},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06514915823936462}],"concepts":[{"id":"https://openalex.org/C2780422015","wikidata":"https://www.wikidata.org/wiki/Q402152","display_name":"Ancestor","level":2,"score":0.9850489497184753},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7066801190376282},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.597117006778717},{"id":"https://openalex.org/C197583594","wikidata":"https://www.wikidata.org/wiki/Q1052390","display_name":"Most recent common ancestor","level":4,"score":0.49009597301483154},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.4649340808391571},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.42843097448349},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.37149083614349365},{"id":"https://openalex.org/C193252679","wikidata":"https://www.wikidata.org/wiki/Q242125","display_name":"Phylogenetic tree","level":3,"score":0.342673122882843},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20565229654312134},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.1811348795890808},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.139802485704422},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.10273656249046326},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.07594281435012817},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.06645560264587402},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.06634178757667542},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06514915823936462},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","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/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/3-540-45995-2_44","is_oa":false,"landing_page_url":"https://doi.org/10.1007/3-540-45995-2_44","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.8.4530","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.8.4530","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.sunysb.edu/~bender/pub/latin02-level.ps","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":44,"referenced_works":["https://openalex.org/W1501342714","https://openalex.org/W1539498068","https://openalex.org/W1597508325","https://openalex.org/W1803471726","https://openalex.org/W1964495281","https://openalex.org/W1965896058","https://openalex.org/W1967241124","https://openalex.org/W1968634208","https://openalex.org/W1969787801","https://openalex.org/W1974744562","https://openalex.org/W1976915153","https://openalex.org/W1979109797","https://openalex.org/W1983102976","https://openalex.org/W1990970199","https://openalex.org/W1993058867","https://openalex.org/W1995544238","https://openalex.org/W1998115980","https://openalex.org/W2000358470","https://openalex.org/W2011999472","https://openalex.org/W2020109755","https://openalex.org/W2023173768","https://openalex.org/W2023658462","https://openalex.org/W2025299767","https://openalex.org/W2028503265","https://openalex.org/W2031530585","https://openalex.org/W2046946959","https://openalex.org/W2048128011","https://openalex.org/W2049074379","https://openalex.org/W2055182225","https://openalex.org/W2055884227","https://openalex.org/W2058432138","https://openalex.org/W2061532023","https://openalex.org/W2075646121","https://openalex.org/W2076009323","https://openalex.org/W2077333890","https://openalex.org/W2081080485","https://openalex.org/W2092901467","https://openalex.org/W2098130516","https://openalex.org/W2101000699","https://openalex.org/W2127534330","https://openalex.org/W2137120608","https://openalex.org/W2561675875","https://openalex.org/W2911850790","https://openalex.org/W3198470706"],"related_works":["https://openalex.org/W4245440762","https://openalex.org/W2040327458","https://openalex.org/W1991335876","https://openalex.org/W2060407540","https://openalex.org/W2081585241","https://openalex.org/W1797343337","https://openalex.org/W2374375360","https://openalex.org/W2350551303","https://openalex.org/W2291867146","https://openalex.org/W2362218761"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}