{"id":"https://openalex.org/W2153113544","doi":"https://doi.org/10.1007/978-3-642-54423-1_45","title":"Semantic Word Cloud Representations: Hardness and Approximation Algorithms","display_name":"Semantic Word Cloud Representations: Hardness and Approximation Algorithms","publication_year":2014,"publication_date":"2014-01-01","ids":{"openalex":"https://openalex.org/W2153113544","doi":"https://doi.org/10.1007/978-3-642-54423-1_45","mag":"2153113544"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-54423-1_45","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-54423-1_45","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":true,"oa_status":"green","oa_url":"http://arxiv.org/pdf/1311.4778","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5019738904","display_name":"Lukas Barth","orcid":"https://orcid.org/0000-0002-2802-7825"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Lukas Barth","raw_affiliation_strings":["Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021549430","display_name":"Sara Irina Fabrikant","orcid":"https://orcid.org/0000-0003-1263-8792"},"institutions":[{"id":"https://openalex.org/I202697423","display_name":"University of Zurich","ror":"https://ror.org/02crff812","country_code":"CH","type":"education","lineage":["https://openalex.org/I202697423"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Sara Irina Fabrikant","raw_affiliation_strings":["Department of Geography, University of Zurich, Switzerland"],"affiliations":[{"raw_affiliation_string":"Department of Geography, University of Zurich, Switzerland","institution_ids":["https://openalex.org/I202697423"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003147292","display_name":"Stephen Kobourov","orcid":"https://orcid.org/0000-0002-0477-2724"},"institutions":[{"id":"https://openalex.org/I138006243","display_name":"University of Arizona","ror":"https://ror.org/03m2x1q45","country_code":"US","type":"education","lineage":["https://openalex.org/I138006243"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Stephen G. Kobourov","raw_affiliation_strings":["Department of Computer Science, University of Arizona, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Arizona, USA","institution_ids":["https://openalex.org/I138006243"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044299176","display_name":"Anna Lubiw","orcid":"https://orcid.org/0000-0002-2338-361X"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Anna Lubiw","raw_affiliation_strings":["David R. Cheriton School of Computer Science, University of Waterloo, Canada"],"affiliations":[{"raw_affiliation_string":"David R. Cheriton School of Computer Science, University of Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071390048","display_name":"Martin N\u00f6llenburg","orcid":"https://orcid.org/0000-0003-0454-3937"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martin N\u00f6llenburg","raw_affiliation_strings":["Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Theoretical Informatics, Karlsruhe Institute of Technology, Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080521209","display_name":"Yoshio Okamoto","orcid":"https://orcid.org/0000-0002-9826-7074"},"institutions":[{"id":"https://openalex.org/I20529979","display_name":"University of Electro-Communications","ror":"https://ror.org/02x73b849","country_code":"JP","type":"education","lineage":["https://openalex.org/I20529979"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshio Okamoto","raw_affiliation_strings":["Dept. Comm. Engineering and Informatics, University of Electro-Communications, Japan"],"affiliations":[{"raw_affiliation_string":"Dept. Comm. Engineering and Informatics, University of Electro-Communications, Japan","institution_ids":["https://openalex.org/I20529979"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058217001","display_name":"Sergey Pupyrev","orcid":"https://orcid.org/0000-0003-4089-673X"},"institutions":[{"id":"https://openalex.org/I138006243","display_name":"University of Arizona","ror":"https://ror.org/03m2x1q45","country_code":"US","type":"education","lineage":["https://openalex.org/I138006243"]},{"id":"https://openalex.org/I130823665","display_name":"Ural Federal University","ror":"https://ror.org/00hs7dr46","country_code":"RU","type":"education","lineage":["https://openalex.org/I130823665"]}],"countries":["RU","US"],"is_corresponding":false,"raw_author_name":"Sergey Pupyrev","raw_affiliation_strings":["Department of Computer Science, University of Arizona, USA","Institute of Mathematics and Computer Science, Ural Federal University, Russia"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Arizona, USA","institution_ids":["https://openalex.org/I138006243"]},{"raw_affiliation_string":"Institute of Mathematics and Computer Science, Ural Federal University, Russia","institution_ids":["https://openalex.org/I130823665"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022463724","display_name":"Claudio Squarcella","orcid":null},"institutions":[{"id":"https://openalex.org/I119003972","display_name":"Roma Tre University","ror":"https://ror.org/05vf0dg29","country_code":"IT","type":"education","lineage":["https://openalex.org/I119003972"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Claudio Squarcella","raw_affiliation_strings":["Dipartimento di Ingegneria, Roma Tre University, Italy"],"affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria, Roma Tre University, Italy","institution_ids":["https://openalex.org/I119003972"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063296115","display_name":"Torsten Ueckerdt","orcid":"https://orcid.org/0000-0002-0645-9715"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Torsten Ueckerdt","raw_affiliation_strings":["Department of Mathematics, Karlsruhe Institute of Technology, Germany"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Karlsruhe Institute of Technology, Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014138072","display_name":"Alexander Wolff","orcid":"https://orcid.org/0000-0001-5872-718X"},"institutions":[{"id":"https://openalex.org/I25974101","display_name":"University of W\u00fcrzburg","ror":"https://ror.org/00fbnyb24","country_code":"DE","type":"education","lineage":["https://openalex.org/I25974101"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Alexander Wolff","raw_affiliation_strings":["Lehrstuhl f\u00fcr Informatik I, Universit\u00e4t W\u00fcrzburg, Germany"],"affiliations":[{"raw_affiliation_string":"Lehrstuhl f\u00fcr Informatik I, Universit\u00e4t W\u00fcrzburg, Germany","institution_ids":["https://openalex.org/I25974101"]}]}],"institutions":[],"countries_distinct_count":7,"institutions_distinct_count":10,"corresponding_author_ids":["https://openalex.org/A5019738904"],"corresponding_institution_ids":["https://openalex.org/I102335020"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.6255,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.90239265,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"514","last_page":"525"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T12292","display_name":"Graph Theory and Algorithms","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9952999949455261,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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":0.5877797603607178},{"id":"https://openalex.org/keywords/adjacency-list","display_name":"Adjacency list","score":0.5720621943473816},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.48740652203559875},{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.46464774012565613},{"id":"https://openalex.org/keywords/vertex","display_name":"Vertex (graph theory)","score":0.43627652525901794},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.38020506501197815},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3725264072418213},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3704093098640442},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.3678276240825653},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3084849715232849}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5877797603607178},{"id":"https://openalex.org/C110484373","wikidata":"https://www.wikidata.org/wiki/Q264398","display_name":"Adjacency list","level":2,"score":0.5720621943473816},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.48740652203559875},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.46464774012565613},{"id":"https://openalex.org/C80899671","wikidata":"https://www.wikidata.org/wiki/Q1304193","display_name":"Vertex (graph theory)","level":3,"score":0.43627652525901794},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.38020506501197815},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3725264072418213},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3704093098640442},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.3678276240825653},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3084849715232849},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-642-54423-1_45","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-54423-1_45","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:elar.urfu.ru:10995/102462","is_oa":true,"landing_page_url":"https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899939512&doi=10.1007%2f978-3-642-54423-1_45&partnerID=40&md5=ce61aac9f628b4ec8129b1d6addd3750","pdf_url":"http://arxiv.org/pdf/1311.4778","source":{"id":"https://openalex.org/S4306401522","display_name":"Electronic scientific archive of UrFU (Ural Federal University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I130823665","host_organization_name":"Ural Federal University","host_organization_lineage":["https://openalex.org/I130823665"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"pmh:oai:elar.urfu.ru:10995/102462","is_oa":true,"landing_page_url":"https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899939512&doi=10.1007%2f978-3-642-54423-1_45&partnerID=40&md5=ce61aac9f628b4ec8129b1d6addd3750","pdf_url":"http://arxiv.org/pdf/1311.4778","source":{"id":"https://openalex.org/S4306401522","display_name":"Electronic scientific archive of UrFU (Ural Federal University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I130823665","host_organization_name":"Ural Federal University","host_organization_lineage":["https://openalex.org/I130823665"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)","raw_type":"info:eu-repo/semantics/publishedVersion"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2153113544.pdf"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W24725585","https://openalex.org/W1584926591","https://openalex.org/W1971244706","https://openalex.org/W1973624728","https://openalex.org/W1980435845","https://openalex.org/W1983741169","https://openalex.org/W1990402145","https://openalex.org/W2000444555","https://openalex.org/W2008346491","https://openalex.org/W2011039300","https://openalex.org/W2016268421","https://openalex.org/W2054428995","https://openalex.org/W2075038621","https://openalex.org/W2082251733","https://openalex.org/W2094475624","https://openalex.org/W2098329200","https://openalex.org/W2122580360","https://openalex.org/W2141558464","https://openalex.org/W2152311353","https://openalex.org/W2153113544","https://openalex.org/W2156985538","https://openalex.org/W2322867406","https://openalex.org/W2335389215","https://openalex.org/W3216726562","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2611163850","https://openalex.org/W1845849701","https://openalex.org/W3015250136","https://openalex.org/W1980812295","https://openalex.org/W2044218713","https://openalex.org/W2625268413","https://openalex.org/W2962989220","https://openalex.org/W2379234996","https://openalex.org/W4247900000","https://openalex.org/W2900798793"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2014,"cited_by_count":3}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}