{"id":"https://openalex.org/W1983847410","doi":"https://doi.org/10.1007/s00453-012-9693-8","title":"On the Complexity of the Regenerator Cost Problem in General Networks with Traffic Grooming","display_name":"On the Complexity of the Regenerator Cost Problem in General Networks with Traffic Grooming","publication_year":2012,"publication_date":"2012-10-02","ids":{"openalex":"https://openalex.org/W1983847410","doi":"https://doi.org/10.1007/s00453-012-9693-8","mag":"1983847410"},"language":"en","primary_location":{"id":"doi:10.1007/s00453-012-9693-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00453-012-9693-8","pdf_url":null,"source":{"id":"https://openalex.org/S89324355","display_name":"Algorithmica","issn_l":"0178-4617","issn":["0178-4617","1432-0541"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Algorithmica","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/A5021894709","display_name":"Michele Flammini","orcid":"https://orcid.org/0000-0003-0327-3728"},"institutions":[{"id":"https://openalex.org/I26415053","display_name":"University of L'Aquila","ror":"https://ror.org/01j9p1r26","country_code":"IT","type":"education","lineage":["https://openalex.org/I26415053"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Michele Flammini","raw_affiliation_strings":["Department of Information Engineering, Computer Science and Mathematics, University of L\u2019Aquila, L\u2019Aquila, Italy","University of L'Aquila"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, Computer Science and Mathematics, University of L\u2019Aquila, L\u2019Aquila, Italy","institution_ids":["https://openalex.org/I26415053"]},{"raw_affiliation_string":"University of L'Aquila","institution_ids":["https://openalex.org/I26415053"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051227299","display_name":"Gianpiero Monaco","orcid":"https://orcid.org/0000-0002-0998-5649"},"institutions":[{"id":"https://openalex.org/I26415053","display_name":"University of L'Aquila","ror":"https://ror.org/01j9p1r26","country_code":"IT","type":"education","lineage":["https://openalex.org/I26415053"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Gianpiero Monaco","raw_affiliation_strings":["Department of Information Engineering, Computer Science and Mathematics, University of L\u2019Aquila, L\u2019Aquila, Italy","University of L'Aquila"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, Computer Science and Mathematics, University of L\u2019Aquila, L\u2019Aquila, Italy","institution_ids":["https://openalex.org/I26415053"]},{"raw_affiliation_string":"University of L'Aquila","institution_ids":["https://openalex.org/I26415053"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032872563","display_name":"Luca Moscardelli","orcid":"https://orcid.org/0000-0002-9256-481X"},"institutions":[{"id":"https://openalex.org/I39387349","display_name":"University of Chieti-Pescara","ror":"https://ror.org/00qjgza05","country_code":"IT","type":"education","lineage":["https://openalex.org/I39387349"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Luca Moscardelli","raw_affiliation_strings":["Department of Economic Studies, University of Chieti-Pescara, Pescara, Italy","University of Chieti-Pescara"],"affiliations":[{"raw_affiliation_string":"Department of Economic Studies, University of Chieti-Pescara, Pescara, Italy","institution_ids":["https://openalex.org/I39387349"]},{"raw_affiliation_string":"University of Chieti-Pescara","institution_ids":["https://openalex.org/I39387349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065874065","display_name":"Mordechai Shalom","orcid":"https://orcid.org/0000-0002-2688-5703"},"institutions":[{"id":"https://openalex.org/I68147069","display_name":"Tel Hai Academic College","ror":"https://ror.org/009st3569","country_code":"IL","type":"education","lineage":["https://openalex.org/I68147069"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Mordechai Shalom","raw_affiliation_strings":["Tel Hai Academic College, Upper Galilee, 12210, Israel","Tel Hai Academic College"],"affiliations":[{"raw_affiliation_string":"Tel Hai Academic College, Upper Galilee, 12210, Israel","institution_ids":["https://openalex.org/I68147069"]},{"raw_affiliation_string":"Tel Hai Academic College","institution_ids":["https://openalex.org/I68147069"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009919512","display_name":"Shmuel Zaks","orcid":"https://orcid.org/0000-0001-5637-4923"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Shmuel Zaks","raw_affiliation_strings":["Department of Computer Science, Technion, Haifa, Israel","Technion"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Technion, Haifa, Israel","institution_ids":["https://openalex.org/I174306211"]},{"raw_affiliation_string":"Technion","institution_ids":["https://openalex.org/I174306211"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5021894709"],"corresponding_institution_ids":["https://openalex.org/I26415053"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":0.2492,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.57397928,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":"68","issue":"3","first_page":"671","last_page":"691"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10847","display_name":"Advanced Optical Network Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10847","display_name":"Advanced Optical Network Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9991000294685364,"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/T10829","display_name":"Interconnection Networks and Systems","score":0.9988999962806702,"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/theory-of-computation","display_name":"Theory of computation","score":0.7153558135032654},{"id":"https://openalex.org/keywords/network-topology","display_name":"Network topology","score":0.6152300834655762},{"id":"https://openalex.org/keywords/traffic-grooming","display_name":"Traffic grooming","score":0.5880634784698486},{"id":"https://openalex.org/keywords/regenerative-heat-exchanger","display_name":"Regenerative heat exchanger","score":0.5874783992767334},{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.5851497650146484},{"id":"https://openalex.org/keywords/polynomial-time-approximation-scheme","display_name":"Polynomial-time approximation scheme","score":0.5219563841819763},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5157709121704102},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.51556396484375},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.4986724853515625},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.4904174506664276},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.476214736700058},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4427482783794403},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4390111267566681},{"id":"https://openalex.org/keywords/telecommunications-network","display_name":"Telecommunications network","score":0.4148011803627014},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.37449243664741516},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.36214005947113037},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3480634093284607},{"id":"https://openalex.org/keywords/wavelength-division-multiplexing","display_name":"Wavelength-division multiplexing","score":0.3477672338485718},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.24455785751342773},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.24380114674568176}],"concepts":[{"id":"https://openalex.org/C24858836","wikidata":"https://www.wikidata.org/wiki/Q844718","display_name":"Theory of computation","level":2,"score":0.7153558135032654},{"id":"https://openalex.org/C199845137","wikidata":"https://www.wikidata.org/wiki/Q145490","display_name":"Network topology","level":2,"score":0.6152300834655762},{"id":"https://openalex.org/C162396882","wikidata":"https://www.wikidata.org/wiki/Q7832502","display_name":"Traffic grooming","level":4,"score":0.5880634784698486},{"id":"https://openalex.org/C63257944","wikidata":"https://www.wikidata.org/wiki/Q1435974","display_name":"Regenerative heat exchanger","level":3,"score":0.5874783992767334},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.5851497650146484},{"id":"https://openalex.org/C99140742","wikidata":"https://www.wikidata.org/wiki/Q843550","display_name":"Polynomial-time approximation scheme","level":3,"score":0.5219563841819763},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5157709121704102},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.51556396484375},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.4986724853515625},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4904174506664276},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.476214736700058},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4427482783794403},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4390111267566681},{"id":"https://openalex.org/C192126672","wikidata":"https://www.wikidata.org/wiki/Q1068715","display_name":"Telecommunications network","level":2,"score":0.4148011803627014},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.37449243664741516},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.36214005947113037},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3480634093284607},{"id":"https://openalex.org/C160724564","wikidata":"https://www.wikidata.org/wiki/Q1620670","display_name":"Wavelength-division multiplexing","level":3,"score":0.3477672338485718},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.24455785751342773},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.24380114674568176},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C107706546","wikidata":"https://www.wikidata.org/wiki/Q189124","display_name":"Heat exchanger","level":2,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0},{"id":"https://openalex.org/C6260449","wikidata":"https://www.wikidata.org/wiki/Q41364","display_name":"Wavelength","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s00453-012-9693-8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00453-012-9693-8","pdf_url":null,"source":{"id":"https://openalex.org/S89324355","display_name":"Algorithmica","issn_l":"0178-4617","issn":["0178-4617","1432-0541"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Algorithmica","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.5199999809265137,"display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1578512030","https://openalex.org/W1796371726","https://openalex.org/W1929658274","https://openalex.org/W1990081866","https://openalex.org/W1999414334","https://openalex.org/W1999464013","https://openalex.org/W2027606488","https://openalex.org/W2036188961","https://openalex.org/W2049083835","https://openalex.org/W2089278681","https://openalex.org/W2103624091","https://openalex.org/W2115370517","https://openalex.org/W2122882715","https://openalex.org/W2137560895","https://openalex.org/W2155526624","https://openalex.org/W2157054705","https://openalex.org/W2161461534","https://openalex.org/W2165377422","https://openalex.org/W2611804663","https://openalex.org/W3123635721","https://openalex.org/W4300550233"],"related_works":["https://openalex.org/W1976466237","https://openalex.org/W1815446007","https://openalex.org/W2783992526","https://openalex.org/W2098281589","https://openalex.org/W2962917430","https://openalex.org/W2970302286","https://openalex.org/W1481223916","https://openalex.org/W2732982824","https://openalex.org/W1443174385","https://openalex.org/W3123730328"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":2},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}