{"id":"https://openalex.org/W2107572361","doi":"https://doi.org/10.1145/1167473.1167498","title":"A flow-based approach for variant parametric types","display_name":"A flow-based approach for variant parametric types","publication_year":2006,"publication_date":"2006-10-16","ids":{"openalex":"https://openalex.org/W2107572361","doi":"https://doi.org/10.1145/1167473.1167498","mag":"2107572361"},"language":"en","primary_location":{"id":"doi:10.1145/1167473.1167498","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1167473.1167498","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st annual ACM SIGPLAN conference on Object-oriented programming systems, languages, and applications","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/A5047181479","display_name":"Wei-Ngan Chin","orcid":"https://orcid.org/0000-0002-9660-5682"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Wei-Ngan Chin","raw_affiliation_strings":["National University of Singapore"],"affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043335113","display_name":"Florin Cr\u0103ciun","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Florin Craciun","raw_affiliation_strings":["National University of Singapore"],"affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073352371","display_name":"Siau\u2010Cheng Khoo","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Siau-Cheng Khoo","raw_affiliation_strings":["National University of Singapore"],"affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036625175","display_name":"Corneliu Popeea","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Corneliu Popeea","raw_affiliation_strings":["National University of Singapore"],"affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5047181479"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":null,"apc_paid":null,"fwci":6.0245,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.9577444,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"273","last_page":"290"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10260","display_name":"Software Engineering Research","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10260","display_name":"Software Engineering Research","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10126","display_name":"Logic, programming, and type systems","score":0.9965000152587891,"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"}},{"id":"https://openalex.org/T10639","display_name":"Advanced Software Engineering Methodologies","score":0.9872999787330627,"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/soundness","display_name":"Soundness","score":0.7875877618789673},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.785901665687561},{"id":"https://openalex.org/keywords/type-inference","display_name":"Type inference","score":0.6939618587493896},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.6577941179275513},{"id":"https://openalex.org/keywords/subtyping","display_name":"Subtyping","score":0.6180837154388428},{"id":"https://openalex.org/keywords/type-safety","display_name":"Type safety","score":0.5629598498344421},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.49012288451194763},{"id":"https://openalex.org/keywords/type","display_name":"Type (biology)","score":0.48708274960517883},{"id":"https://openalex.org/keywords/type-theory","display_name":"Type theory","score":0.4621167480945587},{"id":"https://openalex.org/keywords/modular-design","display_name":"Modular design","score":0.4318663477897644},{"id":"https://openalex.org/keywords/reflection","display_name":"Reflection (computer programming)","score":0.41744542121887207},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3398096561431885},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.18344056606292725},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.18129563331604004}],"concepts":[{"id":"https://openalex.org/C39920170","wikidata":"https://www.wikidata.org/wiki/Q693083","display_name":"Soundness","level":2,"score":0.7875877618789673},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.785901665687561},{"id":"https://openalex.org/C198370458","wikidata":"https://www.wikidata.org/wiki/Q586459","display_name":"Type inference","level":3,"score":0.6939618587493896},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.6577941179275513},{"id":"https://openalex.org/C83852419","wikidata":"https://www.wikidata.org/wiki/Q2713292","display_name":"Subtyping","level":2,"score":0.6180837154388428},{"id":"https://openalex.org/C44779574","wikidata":"https://www.wikidata.org/wiki/Q736866","display_name":"Type safety","level":2,"score":0.5629598498344421},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.49012288451194763},{"id":"https://openalex.org/C2777299769","wikidata":"https://www.wikidata.org/wiki/Q3707858","display_name":"Type (biology)","level":2,"score":0.48708274960517883},{"id":"https://openalex.org/C93682546","wikidata":"https://www.wikidata.org/wiki/Q1056428","display_name":"Type theory","level":3,"score":0.4621167480945587},{"id":"https://openalex.org/C101468663","wikidata":"https://www.wikidata.org/wiki/Q1620158","display_name":"Modular design","level":2,"score":0.4318663477897644},{"id":"https://openalex.org/C65682993","wikidata":"https://www.wikidata.org/wiki/Q1056451","display_name":"Reflection (computer programming)","level":2,"score":0.41744542121887207},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3398096561431885},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.18344056606292725},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.18129563331604004},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","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}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1145/1167473.1167498","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1167473.1167498","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st annual ACM SIGPLAN conference on Object-oriented programming systems, languages, and applications","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/40373","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/40373","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Conference Paper"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.109.2481","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.109.2481","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.comp.nus.edu.sg/~chinwn/papers/oopsla06.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.124.9440","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.124.9440","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.iscs.nus.edu.sg/~corneliu/research/flow-based.oopsla06.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.490.2136","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.490.2136","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.model.in.tum.de/~popeea/research/flow-based.oopsla06.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W282653980","https://openalex.org/W1507723317","https://openalex.org/W1511133369","https://openalex.org/W1526736056","https://openalex.org/W1545985476","https://openalex.org/W1557561422","https://openalex.org/W1569578717","https://openalex.org/W1576727331","https://openalex.org/W1595544871","https://openalex.org/W1968327162","https://openalex.org/W1982205631","https://openalex.org/W1993068529","https://openalex.org/W1993140586","https://openalex.org/W2014387690","https://openalex.org/W2025407135","https://openalex.org/W2027657506","https://openalex.org/W2029360780","https://openalex.org/W2030793354","https://openalex.org/W2032220227","https://openalex.org/W2051981528","https://openalex.org/W2053118768","https://openalex.org/W2069037543","https://openalex.org/W2078334802","https://openalex.org/W2091909330","https://openalex.org/W2104204098","https://openalex.org/W2108690834","https://openalex.org/W2109783046","https://openalex.org/W2127172188","https://openalex.org/W2137417304","https://openalex.org/W2141843850","https://openalex.org/W2150101804","https://openalex.org/W2169136701","https://openalex.org/W2171747309","https://openalex.org/W2570710533","https://openalex.org/W2792739471","https://openalex.org/W2940274360","https://openalex.org/W4240543102","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2593125519","https://openalex.org/W3027723509","https://openalex.org/W2733168542","https://openalex.org/W2563592207","https://openalex.org/W1510917942","https://openalex.org/W1507723317","https://openalex.org/W2552165488","https://openalex.org/W4298104918","https://openalex.org/W1810290248","https://openalex.org/W1595983599"],"abstract_inverted_index":{"A":[0],"promising":[1],"approach":[2],"for":[3,62,87],"type-safe":[4],"generic":[5,64],"codes":[6],"in":[7,76],"the":[8,35],"object-oriented":[9],"paradigm":[10],"is":[11],"variant":[12,28,88,132],"parametric":[13],"type,":[14],"which":[15],"allows":[16],"covari-ant":[17],"and":[18,51,79,111,126],"contravariant":[19],"subtyping":[20,80],"on":[21,48],"fields":[22],"where":[23],"appropriate.":[24],"Pre-vious":[25],"approaches":[26],"formalise":[27],"type":[29,37,53,109,133],"as":[30],"a":[31,44,57,91,107,121],"special":[32,92],"case":[33],"of":[34,123],"existential":[36],"system.":[38,134],"In":[39],"this":[40],"paper,":[41],"we":[42],"present":[43],"new":[45],"framework":[46],"based":[47],"flow":[49,77],"analysis":[50,78],"modular":[52],"checking":[54],"to":[55,69,98],"provide":[56],"sim-ple":[58],"but":[59],"accurate":[60],"model":[61],"capturing":[63],"types.":[65,103],"Our":[66],"scheme":[67],"stands":[68],"benefit":[70],"from":[71],"past":[72],"(and":[73],"future)":[74],"advances":[75],"constraints.":[81],"Furthermore,":[82],"it":[83],"fully":[84],"supports":[85],"casting":[86],"types":[89],"with":[90,101,129],"reflection":[93],"mechanism,":[94],"called":[95],"cast":[96],"capture,":[97],"handle":[99],"objects":[100],"unknown":[102],"We":[104,116],"have":[105,112,117],"built":[106],"constraint-based":[108],"checker":[110],"proven":[113],"its":[114],"soundness.":[115],"also":[118],"successfully":[119],"annotated":[120],"suite":[122],"Java":[124],"libraries":[125],"client":[127],"code":[128],"our":[130],"flow-based":[131]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}