{"id":"https://openalex.org/W2942397913","doi":"https://doi.org/10.18420/btw2019-05","title":"4.-8. M\u00e4rz 2019","display_name":"4.-8. M\u00e4rz 2019","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2942397913","doi":"https://doi.org/10.18420/btw2019-05","mag":"2942397913"},"language":"en","primary_location":{"id":"pmh:oai:zenodo.org:3632455","is_oa":true,"landing_page_url":"https://zenodo.org/record/3632455","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"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":"","raw_type":"info:eu-repo/semantics/conferencePaper"},"type":"article","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://zenodo.org/record/3632455","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058078341","display_name":"Bernhard Radke","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Radke, Bernhard","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5101880157","display_name":"Thomas Neumann","orcid":"https://orcid.org/0000-0001-5787-142X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Neumann, Thomas","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5058078341"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.02787301,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"57","last_page":"76"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12770","display_name":"Amino Acid Enzymes and Metabolism","score":0.9544000029563904,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T12770","display_name":"Amino Acid Enzymes and Metabolism","score":0.9544000029563904,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11027","display_name":"Metabolism and Genetic Disorders","score":0.9373000264167786,"subfield":{"id":"https://openalex.org/subfields/1308","display_name":"Clinical Biochemistry"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11339","display_name":"Metabolism, Diabetes, and Cancer","score":0.9196000099182129,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/joins","display_name":"Joins","score":0.7529540061950684},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4289359450340271},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.42124003171920776},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.3632054328918457},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.11323857307434082}],"concepts":[{"id":"https://openalex.org/C2778692605","wikidata":"https://www.wikidata.org/wiki/Q4041866","display_name":"Joins","level":2,"score":0.7529540061950684},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4289359450340271},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.42124003171920776},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3632054328918457},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.11323857307434082}],"mesh":[],"locations_count":3,"locations":[{"id":"pmh:oai:zenodo.org:3632455","is_oa":true,"landing_page_url":"https://zenodo.org/record/3632455","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"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":"","raw_type":"info:eu-repo/semantics/conferencePaper"},{"id":"doi:10.18420/btw2019-05","is_oa":true,"landing_page_url":"https://doi.org/10.18420/btw2019-05","pdf_url":null,"source":{"id":"https://openalex.org/S7407052918","display_name":"Gesellschaft f\u00fcr Informatik (GI)","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article-journal"},{"id":"mag:2942397913","is_oa":false,"landing_page_url":"https://dblp.uni-trier.de/db/conf/btw/btw2019.html#Radke019","pdf_url":null,"source":{"id":"https://openalex.org/S4306504987","display_name":"BTW","issn_l":null,"issn":null,"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":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":"BTW","raw_type":null}],"best_oa_location":{"id":"pmh:oai:zenodo.org:3632455","is_oa":true,"landing_page_url":"https://zenodo.org/record/3632455","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"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":"","raw_type":"info:eu-repo/semantics/conferencePaper"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Choosing":[0],"the":[1,8,27,38,72,83,95,108,209,222,240,246,268],"best":[2,39],"join":[3,15,29,241,255],"order":[4,30],"is":[5,31,59,104,142,170,196],"one":[6],"of":[7,11,85,111,225,271],"main":[9],"tasks":[10],"query":[12,20,247,272],"optimization,":[13],"as":[14,149],"ordering":[16,242,256],"can":[17,54,162,259],"easily":[18],"affect":[19],"execution":[21],"times":[22],"by":[23,244],"large":[24],"factors.":[25],"Finding":[26],"optimal":[28,101],"NP-hard":[32],"in":[33,150,193,251],"general,":[34],"which":[35,58,141,169,217],"means":[36],"that":[37,258],"known":[40],"algorithms":[41,80],"have":[42,70,81,131],"exponential":[43],"worst":[44],"case":[45,195],"complexity.":[46],"As":[47],"a":[48,60,89,112,123,171,252],"consequence":[49],"only":[50],"relatively":[51],"modest":[52],"problems":[53,87],"be":[55],"solved":[56],"exactly,":[57],"problem":[61],"for":[62],"today\u2019s":[63],"large,":[64],"machine":[65],"generated":[66],"queries.":[67,227],"Two":[68],"developments":[69],"improved":[71],"situation:":[73],"If":[74],"we":[75,202,207,230],"disallow":[76],"crossproducts,":[77,140],"graph-based":[78],"DP":[79,97,134,161],"pushed":[82],"boundary":[84],"solvable":[86],"to":[88,106,117,122,186,213,220,239],"few":[90],"dozen":[91],"relations.":[92],"Beyond":[93],"that,":[94],"linearized":[96,160],"strategy,":[98],"where":[99],"an":[100],"left-deep":[102],"plan":[103],"used":[105],"linearize":[107,221],"search":[109,223],"space":[110,224],"subsequent":[113],"DP,":[114],"has":[115],"proven":[116],"work":[118,201],"very":[119,253],"well":[120],"up":[121],"hundred":[124],"relations":[125],"or":[126],"more.":[127],"However,":[128],"these":[129],"strategies":[130,243],"limitations:":[132,205],"Graph-based":[133],"intentionally":[135],"does":[136],"not":[137],"consider":[138],"implicit":[139],"almost":[143],"always":[144],"ok":[145],"but":[146],"sometimes":[147],"undesirable,":[148],"some":[151],"cases":[152],"such":[153],"crossprod-ucts":[154],"are":[155,181],"beneficial.":[156],"Even":[157],"more":[158],"severe,":[159],"handle":[163,214,260],"neither":[164],"crossproducts":[165],"nor":[166],"non-inner":[167,215],"joins,":[168,216],"serious":[172],"limitation.":[173],"Large":[174],"queries":[175,262],"with,":[176],"e.":[177],"g.,":[178],"outer":[179],"joins":[180],"quite":[182],"common":[183],"and":[184,236,263],"having":[185],"fall":[187],"back":[188],"on":[189],"simple":[190],"greedy":[191],"heuristics":[192],"this":[194,200],"highly":[197],"undesirable.":[198],"In":[199],"remove":[203],"both":[204],"First,":[206],"generalize":[208],"underlying":[210],"linearization":[211],"strategy":[212],"allows":[218],"us":[219],"arbitrary":[226,261],"And":[228],"second,":[229],"explicitly":[231],"recognize":[232],"potential":[233],"crossproduct":[234],"opportunities,":[235],"expose":[237],"them":[238],"augmenting":[245],"graph.":[248],"This":[249],"results":[250,266],"generic":[254],"framework":[257],"produces":[264],"excellent":[265],"over":[267],"whole":[269],"range":[270],"sizes.":[273]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2019-05-03T00:00:00"}
