{"id":"https://openalex.org/W2486715098","doi":"https://doi.org/10.1007/978-3-642-58412-1","title":"Complexity and Approximation","display_name":"Complexity and Approximation","publication_year":1999,"publication_date":"1999-01-01","ids":{"openalex":"https://openalex.org/W2486715098","doi":"https://doi.org/10.1007/978-3-642-58412-1","mag":"2486715098"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-58412-1","doi":"https://doi.org/10.1007/978-3-642-58412-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-58412-1","pdf_url":null,"source":{"id":"https://openalex.org/S4306463937","display_name":"Springer eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"book"},"volume":null,"type":"book","is_traditional":true,"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/A5102716483","display_name":"Giorgio Ausiello","orcid":"https://orcid.org/0000-0003-1345-5007","observed_orcids":["https://orcid.org/0000-0003-1345-5007"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Giorgio Ausiello","raw_affiliation_strings":["Dipartimento di Informatica e Sistemistica Universita di Roma \"La Sapienza\" Via Salaria 113, 1-00198 Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Informatica e Sistemistica Universita di Roma \"La Sapienza\" Via Salaria 113, 1-00198 Rome, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064823807","display_name":"Alberto Marchetti-Spaccamela","orcid":"https://orcid.org/0000-0002-7991-4416","observed_orcids":["https://orcid.org/0000-0002-7991-4416"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Alberto Marchetti-Spaccamela","raw_affiliation_strings":["Dipartimento di Informatica e Sistemistica Universita di Roma \"La Sapienza\" Via Salaria 113, 1-00198 Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Informatica e Sistemistica Universita di Roma \"La Sapienza\" Via Salaria 113, 1-00198 Rome, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012362492","display_name":"Pierluigi Crescenzi","orcid":"https://orcid.org/0000-0001-8789-3195","observed_orcids":["https://orcid.org/0000-0001-8789-3195"]},"institutions":[{"id":"https://openalex.org/I45084792","display_name":"University of Florence","ror":"https://ror.org/04jr1s763","country_code":"IT","type":"education","lineage":["https://openalex.org/I45084792"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pierluigi Crescenzi","raw_affiliation_strings":["Dipartimento di Sistemi e Informatica Universita degli Studi di Firenze Via C. Lombroso 6117 1-50134 Florence, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Sistemi e Informatica Universita degli Studi di Firenze Via C. Lombroso 6117 1-50134 Florence, Italy","institution_ids":["https://openalex.org/I45084792"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091418042","display_name":"Giorgio Gambosi","orcid":"https://orcid.org/0000-0001-9979-6931","observed_orcids":["https://orcid.org/0000-0001-9979-6931"]},"institutions":[{"id":"https://openalex.org/I116067653","display_name":"University of Rome Tor Vergata","ror":"https://ror.org/02p77k626","country_code":"IT","type":"education","lineage":["https://openalex.org/I116067653"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Giorgio Gambosi","raw_affiliation_strings":["Dipartimento di Matematica Universita di Roma \"Tor Vergata\" Via della Ricerca Scientifica 1-00133 Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Matematica Universita di Roma \"Tor Vergata\" Via della Ricerca Scientifica 1-00133 Rome, Italy","institution_ids":["https://openalex.org/I116067653"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112193012","display_name":"Marco Protasi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I116067653","display_name":"University of Rome Tor Vergata","ror":"https://ror.org/02p77k626","country_code":"IT","type":"education","lineage":["https://openalex.org/I116067653"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Marco Protasi","raw_affiliation_strings":["Dipartimento di Matematica Universita di Roma \"Tor Vergata\" Via della Ricerca Scientifica 1-00133 Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Matematica Universita di Roma \"Tor Vergata\" Via della Ricerca Scientifica 1-00133 Rome, Italy","institution_ids":["https://openalex.org/I116067653"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003972927","display_name":"Viggo Kann","orcid":"https://orcid.org/0000-0003-3199-8953","observed_orcids":["https://orcid.org/0000-0003-3199-8953"]},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Viggo Kann","raw_affiliation_strings":["Department of Numerical Analysis and Computing Science KTH, Royal Institute of Technology SE-10044 Stockholm, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Numerical Analysis and Computing Science KTH, Royal Institute of Technology SE-10044 Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":8.2554,"has_fulltext":false,"cited_by_count":1028,"citation_normalized_percentile":{"value":0.97211155,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9907000064849854,"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":0.9907000064849854,"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":0.0024999999441206455,"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/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.002400000113993883,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing 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/reoptimization","display_name":"reoptimization","score":0.9940000176429749},{"id":"https://openalex.org/keywords/approximation-algorithms","display_name":"approximation algorithms","score":0.7570000290870667},{"id":"https://openalex.org/keywords/optimization-problems","display_name":"optimization problems","score":0.39899998903274536},{"id":"https://openalex.org/keywords/scheduling","display_name":"scheduling","score":0.9760000109672546},{"id":"https://openalex.org/keywords/vehicle-routing-problem","display_name":"vehicle routing","score":0.9340000152587891},{"id":"https://openalex.org/keywords/computational-complexity","display_name":"computational complexity","score":0.5040000081062317}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.42103540897369385}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-642-58412-1","doi":"https://doi.org/10.1007/978-3-642-58412-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-58412-1","pdf_url":null,"source":{"id":"https://openalex.org/S4306463937","display_name":"Springer eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"book"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.386.3597","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.386.3597","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.lamsade.dauphine.fr/sites/default/IMG/pdf/cahierLamsade281.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1530753374","https://openalex.org/W2011039300","https://openalex.org/W2024997287","https://openalex.org/W2029120932","https://openalex.org/W2053050060","https://openalex.org/W2066577300","https://openalex.org/W4246124600"],"related_works":["https://openalex.org/W7036600787","https://openalex.org/W4243327565","https://openalex.org/W1602543479","https://openalex.org/W84056012","https://openalex.org/W3168031911","https://openalex.org/W6989358279","https://openalex.org/W1528796068","https://openalex.org/W1988087521","https://openalex.org/W2798395708","https://openalex.org/W2050037074"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":10},{"year":2025,"cited_by_count":12},{"year":2024,"cited_by_count":20},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":21},{"year":2021,"cited_by_count":18},{"year":2020,"cited_by_count":16},{"year":2019,"cited_by_count":25},{"year":2018,"cited_by_count":36},{"year":2017,"cited_by_count":28},{"year":2016,"cited_by_count":31},{"year":2015,"cited_by_count":38},{"year":2014,"cited_by_count":41},{"year":2013,"cited_by_count":40},{"year":2012,"cited_by_count":36}],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2016-08-23T00:00:00"}
