{"id":"https://openalex.org/W1490233153","doi":"https://doi.org/10.1007/978-3-540-31856-9_16","title":"More Efficient Queries in PCPs for NP and Improved Approximation Hardness of Maximum CSP","display_name":"More Efficient Queries in PCPs for NP and Improved Approximation Hardness of Maximum CSP","publication_year":2005,"publication_date":"2005-01-01","ids":{"openalex":"https://openalex.org/W1490233153","doi":"https://doi.org/10.1007/978-3-540-31856-9_16","mag":"1490233153"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-540-31856-9_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-31856-9_16","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/A5029419425","display_name":"Lars Engebretsen","orcid":"https://orcid.org/0000-0003-2294-921X"},"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":true,"raw_author_name":"Lars Engebretsen","raw_affiliation_strings":["Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden","Department of Numerical Analysis and Computer Science Royal Institute of Technology, Stockholm, Sweden#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]},{"raw_affiliation_string":"Department of Numerical Analysis and Computer Science Royal Institute of Technology, Stockholm, Sweden#TAB#","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037246013","display_name":"Jonas Holmerin","orcid":null},"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":"Jonas Holmerin","raw_affiliation_strings":["Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden","Department of Numerical Analysis and Computer Science Royal Institute of Technology, Stockholm, Sweden#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]},{"raw_affiliation_string":"Department of Numerical Analysis and Computer Science Royal Institute of Technology, Stockholm, Sweden#TAB#","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5029419425"],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":2.5076,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.89084037,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"194","last_page":"205"},"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/T12288","display_name":"Optimization and Search Problems","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"}},{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9986000061035156,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8210121989250183},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3683167099952698},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32228684425354004}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8210121989250183},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3683167099952698},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32228684425354004}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-540-31856-9_16","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-31856-9_16","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":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W104282755","https://openalex.org/W154813813","https://openalex.org/W1490233153","https://openalex.org/W1936868491","https://openalex.org/W1970259241","https://openalex.org/W1991006936","https://openalex.org/W1999032440","https://openalex.org/W2002864099","https://openalex.org/W2004012902","https://openalex.org/W2019578639","https://openalex.org/W2087964954","https://openalex.org/W2091921997","https://openalex.org/W2106478922","https://openalex.org/W2111385661","https://openalex.org/W2143996311","https://openalex.org/W2148352980","https://openalex.org/W2163432423","https://openalex.org/W2171696779","https://openalex.org/W2202947145","https://openalex.org/W3004537778"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2748952813","https://openalex.org/W2051487156","https://openalex.org/W2073681303","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":null,"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
