{"id":"https://openalex.org/W2047745978","doi":"https://doi.org/10.1145/1514894.1514901","title":"On approximating optimum repairs for functional dependency violations","display_name":"On approximating optimum repairs for functional dependency violations","publication_year":2009,"publication_date":"2009-03-23","ids":{"openalex":"https://openalex.org/W2047745978","doi":"https://doi.org/10.1145/1514894.1514901","mag":"2047745978"},"language":"en","primary_location":{"id":"doi:10.1145/1514894.1514901","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1514894.1514901","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1514894.1514901","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th International Conference on Database Theory","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/1514894.1514901","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058928094","display_name":"Solmaz Kolahi","orcid":null},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Solmaz Kolahi","raw_affiliation_strings":["University of British Columbia"],"affiliations":[{"raw_affiliation_string":"University of British Columbia","institution_ids":["https://openalex.org/I141945490"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061340195","display_name":"Laks V. S. Lakshmanan","orcid":"https://orcid.org/0000-0002-9775-4241"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Laks V. S. Lakshmanan","raw_affiliation_strings":["University of British Columbia"],"affiliations":[{"raw_affiliation_string":"University of British Columbia","institution_ids":["https://openalex.org/I141945490"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5058928094"],"corresponding_institution_ids":["https://openalex.org/I141945490"],"apc_list":null,"apc_paid":null,"fwci":7.9176,"has_fulltext":true,"cited_by_count":209,"citation_normalized_percentile":{"value":0.9745121,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"53","last_page":"62"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11719","display_name":"Data Quality and Management","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11719","display_name":"Data Quality and Management","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10772","display_name":"Distributed systems and fault tolerance","score":0.9961000084877014,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.995199978351593,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/functional-dependency","display_name":"Functional dependency","score":0.952910304069519},{"id":"https://openalex.org/keywords/tuple","display_name":"Tuple","score":0.824945330619812},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6075901985168457},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5969699621200562},{"id":"https://openalex.org/keywords/dependency-theory","display_name":"Dependency theory (database theory)","score":0.5715853571891785},{"id":"https://openalex.org/keywords/constant","display_name":"Constant (computer programming)","score":0.5711647272109985},{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.5112612247467041},{"id":"https://openalex.org/keywords/dependency","display_name":"Dependency (UML)","score":0.4977896213531494},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4552246332168579},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.40959322452545166},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3665153384208679},{"id":"https://openalex.org/keywords/relational-database","display_name":"Relational database","score":0.2061607837677002},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.19496405124664307},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.14084219932556152}],"concepts":[{"id":"https://openalex.org/C26320393","wikidata":"https://www.wikidata.org/wiki/Q597053","display_name":"Functional dependency","level":3,"score":0.952910304069519},{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.824945330619812},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6075901985168457},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5969699621200562},{"id":"https://openalex.org/C40683218","wikidata":"https://www.wikidata.org/wiki/Q5260625","display_name":"Dependency theory (database theory)","level":4,"score":0.5715853571891785},{"id":"https://openalex.org/C2777027219","wikidata":"https://www.wikidata.org/wiki/Q1284190","display_name":"Constant (computer programming)","level":2,"score":0.5711647272109985},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.5112612247467041},{"id":"https://openalex.org/C19768560","wikidata":"https://www.wikidata.org/wiki/Q320727","display_name":"Dependency (UML)","level":2,"score":0.4977896213531494},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4552246332168579},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.40959322452545166},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3665153384208679},{"id":"https://openalex.org/C5655090","wikidata":"https://www.wikidata.org/wiki/Q192588","display_name":"Relational database","level":2,"score":0.2061607837677002},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.19496405124664307},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.14084219932556152},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/1514894.1514901","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1514894.1514901","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1514894.1514901","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th International Conference on Database Theory","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.377.4652","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.377.4652","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.edbt.org/Proceedings/2009-StPetersburg/icdt/papers/p0053-Kolahi.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.971.2114","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.971.2114","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://openproceedings.org/2009/conf/icdt/KolahiL09.pdf","raw_type":"text"}],"best_oa_location":{"id":"doi:10.1145/1514894.1514901","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1514894.1514901","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1514894.1514901","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th International Conference on Database Theory","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2047745978.pdf","grobid_xml":"https://content.openalex.org/works/W2047745978.grobid-xml"},"referenced_works_count":31,"referenced_works":["https://openalex.org/W117318854","https://openalex.org/W1491205793","https://openalex.org/W1558832481","https://openalex.org/W1563498062","https://openalex.org/W1594873272","https://openalex.org/W1643726071","https://openalex.org/W1990313671","https://openalex.org/W1992435424","https://openalex.org/W2038225707","https://openalex.org/W2045054164","https://openalex.org/W2046769817","https://openalex.org/W2050171146","https://openalex.org/W2059009730","https://openalex.org/W2077518845","https://openalex.org/W2110993096","https://openalex.org/W2136709660","https://openalex.org/W2137775416","https://openalex.org/W2150774720","https://openalex.org/W2152221184","https://openalex.org/W2153531471","https://openalex.org/W2154093507","https://openalex.org/W2159100004","https://openalex.org/W2162634476","https://openalex.org/W2163600218","https://openalex.org/W2167333415","https://openalex.org/W2178708778","https://openalex.org/W2611804663","https://openalex.org/W2616737215","https://openalex.org/W2911521611","https://openalex.org/W4246140018","https://openalex.org/W4300550233"],"related_works":["https://openalex.org/W2072918301","https://openalex.org/W2392606101","https://openalex.org/W2116767780","https://openalex.org/W3162070149","https://openalex.org/W165346131","https://openalex.org/W2489943546","https://openalex.org/W2362842011","https://openalex.org/W1845544376","https://openalex.org/W1594511838","https://openalex.org/W59130053"],"abstract_inverted_index":{"We":[0,65,90,179],"study":[1],"the":[2,18,37,51,57,60,72,76,99,129,133,167,175,183],"problem":[3],"of":[4,13,53,62,71,78,85,105,119,135,152,174],"repairing":[5],"an":[6,24,29,125,144,156],"inconsistent":[7,25,159],"database":[8,34,58,87,168],"that":[9,35,48,67,93,136,147],"violates":[10],"a":[11,33,45,79,82,86,95,113,117,149,162,171,193],"set":[12,104,118,151],"functional":[14,38,106,120,153,197,201],"dependencies":[15,107,154],"by":[16],"making":[17],"smallest":[19],"possible":[20],"value":[21],"modifications.":[22],"For":[23],"database,":[26,160],"we":[27,142],"define":[28],"optimum":[30,100,130,176],"repair":[31,73,80,101,131,163,177],"as":[32],"satisfies":[36],"dependencies,":[39,121,198],"and":[40,59,116,155],"minimizes,":[41],"among":[42],"all":[43],"repairs,":[44],"distance":[46,84,165],"measure":[47],"depends":[49],"on":[50],"number":[52],"corrections":[54],"made":[55],"in":[56,189],"weights":[61],"tuples":[63],"modified.":[64],"show":[66,92,181],"like":[68],"other":[69],"versions":[70],"problem,":[74],"checking":[75],"existence":[77],"within":[81,132,170],"certain":[83],"is":[88,108,112,138,169],"NP-complete.":[89],"also":[91,139],"finding":[94,124],"constant-factor":[96],"approximation":[97,145,184],"for":[98,102,122,128,148],"any":[103],"NP-hard.":[109,140],"Furthermore,":[110],"there":[111],"small":[114],"constant":[115,137,172],"which":[123],"approximate":[126],"solution":[127],"factor":[134,173],"Then":[141],"present":[143],"algorithm":[146,185],"fixed":[150],"arbitrary":[157],"input":[158],"produces":[161],"whose":[164],"to":[166,196],"distance.":[178],"finally":[180],"how":[182],"can":[186],"be":[187],"used":[188],"data":[190],"cleaning":[191],"using":[192],"recent":[194],"extension":[195],"called":[199],"conditional":[200],"dependencies.":[202]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":11},{"year":2023,"cited_by_count":9},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":16},{"year":2020,"cited_by_count":16},{"year":2019,"cited_by_count":25},{"year":2018,"cited_by_count":14},{"year":2017,"cited_by_count":15},{"year":2016,"cited_by_count":18},{"year":2015,"cited_by_count":22},{"year":2014,"cited_by_count":17},{"year":2013,"cited_by_count":12},{"year":2012,"cited_by_count":6}],"updated_date":"2026-04-21T08:09:41.155169","created_date":"2025-10-10T00:00:00"}