{"id":"https://openalex.org/W2007628496","doi":"https://doi.org/10.1145/1065167.1065187","title":"Computing cores for data exchange","display_name":"Computing cores for data exchange","publication_year":2005,"publication_date":"2005-06-13","ids":{"openalex":"https://openalex.org/W2007628496","doi":"https://doi.org/10.1145/1065167.1065187","mag":"2007628496"},"language":"en","primary_location":{"id":"doi:10.1145/1065167.1065187","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1065167.1065187","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems","raw_type":"proceedings-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/A5050151740","display_name":"Georg Gottlob","orcid":"https://orcid.org/0000-0002-2353-5230"},"institutions":[{"id":"https://openalex.org/I145847075","display_name":"TU Wien","ror":"https://ror.org/04d836q62","country_code":"AT","type":"education","lineage":["https://openalex.org/I145847075"]}],"countries":["AT"],"is_corresponding":true,"raw_author_name":"Georg Gottlob","raw_affiliation_strings":["Vienna University of Technology"],"affiliations":[{"raw_affiliation_string":"Vienna University of Technology","institution_ids":["https://openalex.org/I145847075"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5050151740"],"corresponding_institution_ids":["https://openalex.org/I145847075"],"apc_list":null,"apc_paid":null,"fwci":4.1528,"has_fulltext":false,"cited_by_count":43,"citation_normalized_percentile":{"value":0.94586311,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"28","issue":null,"first_page":"148","last_page":"159"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9991000294685364,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9991000294685364,"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":0.9962999820709229,"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9955999851226807,"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/tuple","display_name":"Tuple","score":0.8202614784240723},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6750070452690125},{"id":"https://openalex.org/keywords/schema","display_name":"Schema (genetic algorithms)","score":0.6190509796142578},{"id":"https://openalex.org/keywords/predicate","display_name":"Predicate (mathematical logic)","score":0.5296682715415955},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.49319809675216675},{"id":"https://openalex.org/keywords/null","display_name":"Null (SQL)","score":0.4830785095691681},{"id":"https://openalex.org/keywords/functional-dependency","display_name":"Functional dependency","score":0.4609980583190918},{"id":"https://openalex.org/keywords/data-exchange","display_name":"Data exchange","score":0.42252326011657715},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.4218734800815582},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4085765480995178},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.34025052189826965},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.29895028471946716},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.25784337520599365},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.17132613062858582},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.10892912745475769},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.08281722664833069}],"concepts":[{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.8202614784240723},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6750070452690125},{"id":"https://openalex.org/C52146309","wikidata":"https://www.wikidata.org/wiki/Q7431116","display_name":"Schema (genetic algorithms)","level":2,"score":0.6190509796142578},{"id":"https://openalex.org/C140146324","wikidata":"https://www.wikidata.org/wiki/Q1144319","display_name":"Predicate (mathematical logic)","level":2,"score":0.5296682715415955},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.49319809675216675},{"id":"https://openalex.org/C203763787","wikidata":"https://www.wikidata.org/wiki/Q371029","display_name":"Null (SQL)","level":2,"score":0.4830785095691681},{"id":"https://openalex.org/C26320393","wikidata":"https://www.wikidata.org/wiki/Q597053","display_name":"Functional dependency","level":3,"score":0.4609980583190918},{"id":"https://openalex.org/C15845906","wikidata":"https://www.wikidata.org/wiki/Q1172338","display_name":"Data exchange","level":2,"score":0.42252326011657715},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.4218734800815582},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4085765480995178},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.34025052189826965},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.29895028471946716},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.25784337520599365},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.17132613062858582},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.10892912745475769},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.08281722664833069},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1065167.1065187","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1065167.1065187","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7300000190734863,"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W52840101","https://openalex.org/W179577048","https://openalex.org/W187851124","https://openalex.org/W1556076816","https://openalex.org/W1558832481","https://openalex.org/W1967992696","https://openalex.org/W1969053136","https://openalex.org/W1975714036","https://openalex.org/W1975733288","https://openalex.org/W1979514837","https://openalex.org/W1984868905","https://openalex.org/W1985581502","https://openalex.org/W1989650131","https://openalex.org/W1992673035","https://openalex.org/W1992810975","https://openalex.org/W1993604715","https://openalex.org/W2001130632","https://openalex.org/W2004485491","https://openalex.org/W2025038593","https://openalex.org/W2026745535","https://openalex.org/W2028222220","https://openalex.org/W2029448190","https://openalex.org/W2033325972","https://openalex.org/W2034674470","https://openalex.org/W2046652577","https://openalex.org/W2048685245","https://openalex.org/W2050480346","https://openalex.org/W2061290719","https://openalex.org/W2071315104","https://openalex.org/W2075035440","https://openalex.org/W2098213459","https://openalex.org/W2102729564","https://openalex.org/W2112827998","https://openalex.org/W2113214500","https://openalex.org/W2134483537","https://openalex.org/W2159686758","https://openalex.org/W2159793945","https://openalex.org/W2162621793","https://openalex.org/W2295944566","https://openalex.org/W2394942112","https://openalex.org/W2628596753","https://openalex.org/W2753176400","https://openalex.org/W2913688336","https://openalex.org/W4252098605","https://openalex.org/W4254380579","https://openalex.org/W6602175484"],"related_works":["https://openalex.org/W2116767780","https://openalex.org/W165346131","https://openalex.org/W2154423717","https://openalex.org/W1594511838","https://openalex.org/W119841348","https://openalex.org/W2137603913","https://openalex.org/W4285259755","https://openalex.org/W2057416894","https://openalex.org/W2171948294","https://openalex.org/W2039445786"],"abstract_inverted_index":{"Data":[0],"Exchange":[1],"is":[2,100,142,151,155],"the":[3,26,42,51,62,82,86,93],"problem":[4,72,99],"of":[5,17,44,53,64,85,95,108,126,146],"inserting":[6],"data":[7,28,39,97],"structured":[8],"under":[9],"a":[10,14,65,71,96,147,156],"source":[11,27],"schema":[12,16],"into":[13],"target":[15,109],"different":[18],"structure":[19],"(possibly":[20],"with":[21,68,79],"integrity":[22],"constraints),":[23],"while":[24],"reflecting":[25],"as":[29,31],"accurately":[30],"possible.":[32],"We":[33,49,89],"study":[34],"computational":[35],"issues":[36],"related":[37],"to":[38,56,75,81],"exchange":[40,98],"in":[41,144],"setting":[43],"Fagin,":[45],"Kolaitis,":[46],"and":[47,105,117,131],"Popa(PODS'03).":[48],"use":[50],"technique":[52],"hypertree":[54],"decompositions":[55],"derive":[57],"improved":[58],"algorithms":[59],"for":[60,102],"computing":[61,92,140],"core":[63,94],"relational":[66],"instance":[67],"labeled":[69],"nulls,":[70],"we":[73,137],"show":[74,90,138],"be":[76],"fixed-parameter":[77],"intractable":[78],"respect":[80],"block":[83],"size":[84],"input":[87],"instances.":[88],"that":[91,139],"tractable":[101],"two":[103],"large":[104],"useful":[106],"classes":[107],"constraints.":[110],"The":[111,122],"first":[112],"class":[113,124],"includes":[114],"functional":[115],"dependencies":[116,130],"weakly":[118],"acyclic":[119],"inclusion":[120],"dependencies.":[121,135],"second":[123],"consists":[125],"full":[127],"tuple":[128],"generating":[129,134],"arbitrary":[132],"equation":[133],"Finally,":[136],"cores":[141],"NP-hard":[143],"presence":[145],"system-predicate":[148],"NULL(x),":[149],"which":[150],"true":[152],"iff":[153],"x":[154],"null":[157],"value.":[158]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}