{"id":"https://openalex.org/W3205740634","doi":"https://doi.org/10.3233/faia210116","title":"Choosing the Root of the Tree Decomposition When Solving WCSPs: Preliminary Results","display_name":"Choosing the Root of the Tree Decomposition When Solving WCSPs: Preliminary Results","publication_year":2021,"publication_date":"2021-10-14","ids":{"openalex":"https://openalex.org/W3205740634","doi":"https://doi.org/10.3233/faia210116","mag":"3205740634"},"language":"en","primary_location":{"id":"doi:10.3233/faia210116","is_oa":true,"landing_page_url":"https://doi.org/10.3233/faia210116","pdf_url":"https://ebooks.iospress.nl/pdf/doi/10.3233/FAIA210116","source":{"id":"https://openalex.org/S4210201731","display_name":"Frontiers in artificial intelligence and applications","issn_l":"0922-6389","issn":["0922-6389","1879-8314"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Artificial Intelligence and Applications","raw_type":"book-chapter"},"type":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://ebooks.iospress.nl/pdf/doi/10.3233/FAIA210116","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5009804355","display_name":"Aleksandra Petrova","orcid":"https://orcid.org/0000-0001-7485-5309"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Aleksandra Petrova","raw_affiliation_strings":["Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056490295","display_name":"Javier Larrosa","orcid":"https://orcid.org/0000-0002-8322-0505"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Javier Larrosa","raw_affiliation_strings":["Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5055318247","display_name":"Emma Roll\u00f3n","orcid":"https://orcid.org/0000-0001-8021-9464"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Emma Rollon","raw_affiliation_strings":["Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, UPC, Barcelona, Spain (petrova@cs.upc.edu, larrosa@cs.upc.edu, erollon@cs.upc.edu)","institution_ids":["https://openalex.org/I9617848"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5009804355"],"corresponding_institution_ids":["https://openalex.org/I9617848"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.23345936,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"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/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9998000264167786,"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/T11106","display_name":"Data Management and Algorithms","score":0.9923999905586243,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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":0.9724000096321106,"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/backtracking","display_name":"Backtracking","score":0.899254322052002},{"id":"https://openalex.org/keywords/root","display_name":"Root (linguistics)","score":0.7961164712905884},{"id":"https://openalex.org/keywords/decomposition","display_name":"Decomposition","score":0.7265809774398804},{"id":"https://openalex.org/keywords/tree-decomposition","display_name":"Tree decomposition","score":0.686911940574646},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.6474626064300537},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6319929361343384},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.5864899754524231},{"id":"https://openalex.org/keywords/selection","display_name":"Selection (genetic algorithm)","score":0.5809864401817322},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.46718886494636536},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4458669424057007},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.444352388381958},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3726690411567688},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3412209749221802},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.2495640218257904}],"concepts":[{"id":"https://openalex.org/C156884757","wikidata":"https://www.wikidata.org/wiki/Q798554","display_name":"Backtracking","level":2,"score":0.899254322052002},{"id":"https://openalex.org/C171078966","wikidata":"https://www.wikidata.org/wiki/Q111029","display_name":"Root (linguistics)","level":2,"score":0.7961164712905884},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.7265809774398804},{"id":"https://openalex.org/C70501317","wikidata":"https://www.wikidata.org/wiki/Q462095","display_name":"Tree decomposition","level":5,"score":0.686911940574646},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.6474626064300537},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6319929361343384},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.5864899754524231},{"id":"https://openalex.org/C81917197","wikidata":"https://www.wikidata.org/wiki/Q628760","display_name":"Selection (genetic algorithm)","level":2,"score":0.5809864401817322},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.46718886494636536},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4458669424057007},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.444352388381958},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3726690411567688},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3412209749221802},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2495640218257904},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3233/faia210116","is_oa":true,"landing_page_url":"https://doi.org/10.3233/faia210116","pdf_url":"https://ebooks.iospress.nl/pdf/doi/10.3233/FAIA210116","source":{"id":"https://openalex.org/S4210201731","display_name":"Frontiers in artificial intelligence and applications","issn_l":"0922-6389","issn":["0922-6389","1879-8314"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Artificial Intelligence and Applications","raw_type":"book-chapter"},{"id":"pmh:oai:upcommons.upc.edu:2117/356860","is_oa":true,"landing_page_url":"http://hdl.handle.net/2117/356860","pdf_url":null,"source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference report"}],"best_oa_location":{"id":"doi:10.3233/faia210116","is_oa":true,"landing_page_url":"https://doi.org/10.3233/faia210116","pdf_url":"https://ebooks.iospress.nl/pdf/doi/10.3233/FAIA210116","source":{"id":"https://openalex.org/S4210201731","display_name":"Frontiers in artificial intelligence and applications","issn_l":"0922-6389","issn":["0922-6389","1879-8314"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Artificial Intelligence and Applications","raw_type":"book-chapter"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3205740634.pdf","grobid_xml":"https://content.openalex.org/works/W3205740634.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W198893173","https://openalex.org/W1507841763","https://openalex.org/W1535430927","https://openalex.org/W1755177257","https://openalex.org/W1982333717","https://openalex.org/W1988443389","https://openalex.org/W2002722727","https://openalex.org/W2055916047","https://openalex.org/W2080430334","https://openalex.org/W2113901576","https://openalex.org/W2146934839","https://openalex.org/W2337098149","https://openalex.org/W2426452510","https://openalex.org/W2499844773","https://openalex.org/W2911287041","https://openalex.org/W3178660115","https://openalex.org/W4302210525","https://openalex.org/W6600406583","https://openalex.org/W6676695156"],"related_works":["https://openalex.org/W2760348722","https://openalex.org/W2783885583","https://openalex.org/W2376438584","https://openalex.org/W2138319640","https://openalex.org/W3205740634","https://openalex.org/W1507841763","https://openalex.org/W1860500870","https://openalex.org/W1493010546","https://openalex.org/W2053583257","https://openalex.org/W3007288445"],"abstract_inverted_index":{"In":[0],"this":[1],"paper":[2],"we":[3,50],"analyze":[4],"the":[5,9,29,35,38,46,69],"effect":[6,44],"of":[7,37,72],"selecting":[8],"root":[10,39,76],"in":[11,45],"a":[12,42,73],"tree":[13],"decomposition":[14],"when":[15],"using":[16,28],"decomposition-based":[17],"backtracking":[18],"algorithms.":[19],"We":[20,32],"focus":[21],"on":[22],"optimization":[23],"tasks":[24],"for":[25],"Graphical":[26],"Models":[27],"BTD":[30],"algorithm.":[31],"show":[33],"that":[34,63],"choice":[36],"typically":[40],"has":[41],"dramatic":[43],"solving":[47],"performance.":[48],"Then":[49],"investigate":[51],"different":[52],"simple":[53],"measures":[54],"to":[55],"predict":[56],"near":[57,74],"optimal":[58,75],"roots.":[59],"Our":[60],"study":[61],"shows":[62],"correlations":[64],"are":[65],"often":[66],"low,":[67],"so":[68],"automatic":[70],"selection":[71],"will":[77],"require":[78],"more":[79],"sophisticated":[80],"techniques.":[81]},"counts_by_year":[],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}