{"id":"https://openalex.org/W2122858887","doi":"https://doi.org/10.1007/bfb0049428","title":"A unified approach to approximation schemes for NP- and PSPACE-hard problems for geometric graphs","display_name":"A unified approach to approximation schemes for NP- and PSPACE-hard problems for geometric graphs","publication_year":1994,"publication_date":"1994-01-01","ids":{"openalex":"https://openalex.org/W2122858887","doi":"https://doi.org/10.1007/bfb0049428","mag":"2122858887"},"language":"en","primary_location":{"id":"doi:10.1007/bfb0049428","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bfb0049428","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/A5086835651","display_name":"Harry B. Hunt","orcid":null},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"H. B. Hunt","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","University at Albany\u2014SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"University at Albany\u2014SUNY","institution_ids":["https://openalex.org/I392282"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086740853","display_name":"S. S. Ravi","orcid":"https://orcid.org/0000-0002-0893-4364"},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"S. S. Ravi","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","University at Albany\u2014SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"University at Albany\u2014SUNY","institution_ids":["https://openalex.org/I392282"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020293284","display_name":"Madhav Marathe","orcid":"https://orcid.org/0000-0003-1653-0658"},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M. V. Marathe","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","University at Albany\u2014SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"University at Albany\u2014SUNY","institution_ids":["https://openalex.org/I392282"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009388396","display_name":"Daniel J. Rosenkrantz","orcid":"https://orcid.org/0000-0002-7044-0197"},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. J. Rosenkrantz","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","University at Albany\u2014SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"University at Albany\u2014SUNY","institution_ids":["https://openalex.org/I392282"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113824719","display_name":"V. Radhakrishnan","orcid":null},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]},{"id":"https://openalex.org/I4210127415","display_name":"Hewlett-Packard (Canada)","ror":"https://ror.org/0333dtq15","country_code":"CA","type":"company","lineage":["https://openalex.org/I1324840837","https://openalex.org/I4210127415"]},{"id":"https://openalex.org/I1324840837","display_name":"Hewlett-Packard (United States)","ror":"https://ror.org/059rn9488","country_code":"US","type":"company","lineage":["https://openalex.org/I1324840837"]}],"countries":["CA","US"],"is_corresponding":false,"raw_author_name":"V. Radhakrishnan","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","Hewlett-Packard Company, 19447 Pruneridge Avenue, 95014, Cupertino, CA","Hewlett-Packard Company","University at Albany-SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"Hewlett-Packard Company, 19447 Pruneridge Avenue, 95014, Cupertino, CA","institution_ids":["https://openalex.org/I1324840837"]},{"raw_affiliation_string":"Hewlett-Packard Company","institution_ids":["https://openalex.org/I4210127415"]},{"raw_affiliation_string":"University at Albany-SUNY","institution_ids":["https://openalex.org/I392282"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052202085","display_name":"Richard E. Stearns","orcid":"https://orcid.org/0000-0001-5058-1999"},"institutions":[{"id":"https://openalex.org/I392282","display_name":"University at Albany, State University of New York","ror":"https://ror.org/012zs8222","country_code":"US","type":"education","lineage":["https://openalex.org/I392282"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R. E. Stearns","raw_affiliation_strings":["Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","University at Albany\u2014SUNY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, University at Albany-SUNY, 12222, Albany, NY","institution_ids":["https://openalex.org/I392282"]},{"raw_affiliation_string":"University at Albany\u2014SUNY","institution_ids":["https://openalex.org/I392282"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5086835651"],"corresponding_institution_ids":["https://openalex.org/I392282"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":4.5474,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.94769549,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"424","last_page":"435"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9998999834060669,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9998999834060669,"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/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/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9991999864578247,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.6655411124229431},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6249707937240601},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.4390489459037781},{"id":"https://openalex.org/keywords/pspace","display_name":"PSPACE","score":0.43597304821014404},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.34404367208480835},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3353302478790283},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.3250967264175415},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.26247042417526245},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2539393901824951}],"concepts":[{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.6655411124229431},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6249707937240601},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4390489459037781},{"id":"https://openalex.org/C197685441","wikidata":"https://www.wikidata.org/wiki/Q500716","display_name":"PSPACE","level":3,"score":0.43597304821014404},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.34404367208480835},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3353302478790283},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.3250967264175415},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.26247042417526245},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2539393901824951}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bfb0049428","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bfb0049428","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"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W105989191","https://openalex.org/W1523286844","https://openalex.org/W1524151948","https://openalex.org/W1666015432","https://openalex.org/W1967944859","https://openalex.org/W1973511353","https://openalex.org/W1975512711","https://openalex.org/W2008232159","https://openalex.org/W2013451793","https://openalex.org/W2019482147","https://openalex.org/W2022486658","https://openalex.org/W2038225707","https://openalex.org/W2038643780","https://openalex.org/W2053439155","https://openalex.org/W2054943617","https://openalex.org/W2056979696","https://openalex.org/W2063572899","https://openalex.org/W2077585014","https://openalex.org/W2091515017","https://openalex.org/W2100961486","https://openalex.org/W2122858887","https://openalex.org/W2133311553","https://openalex.org/W2133962824","https://openalex.org/W2138820476","https://openalex.org/W2152377721"],"related_works":["https://openalex.org/W2606674369","https://openalex.org/W1771259603","https://openalex.org/W1993180032","https://openalex.org/W4385396242","https://openalex.org/W4285787446","https://openalex.org/W4290017147","https://openalex.org/W2154625854","https://openalex.org/W2327776271","https://openalex.org/W2168335495","https://openalex.org/W1550126246"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
