{"id":"https://openalex.org/W2129897994","doi":"https://doi.org/10.1145/1140335.1140365","title":"A type system equivalent to static single assignment","display_name":"A type system equivalent to static single assignment","publication_year":2006,"publication_date":"2006-07-10","ids":{"openalex":"https://openalex.org/W2129897994","doi":"https://doi.org/10.1145/1140335.1140365","mag":"2129897994"},"language":"en","primary_location":{"id":"doi:10.1145/1140335.1140365","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1140335.1140365","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th ACM SIGPLAN international conference on Principles and practice of declarative programming","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/A5033690770","display_name":"Yutaka Matsuno","orcid":"https://orcid.org/0000-0001-9809-0814"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Yutaka Matsuno","raw_affiliation_strings":["Tohoku University","Tohoku Univ.#TAB#"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Tohoku Univ.#TAB#","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046674857","display_name":"Atsushi Ohori","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Atsushi Ohori","raw_affiliation_strings":["Tohoku University","Tohoku Univ.#TAB#"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Tohoku Univ.#TAB#","institution_ids":["https://openalex.org/I201537933"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5033690770"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.12717857,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"249","last_page":"260"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9998000264167786,"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/T10142","display_name":"Formal Methods in Verification","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/type-inference","display_name":"Type inference","score":0.8842285871505737},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7597206830978394},{"id":"https://openalex.org/keywords/compiler","display_name":"Compiler","score":0.6000123620033264},{"id":"https://openalex.org/keywords/program-transformation","display_name":"Program transformation","score":0.5916607975959778},{"id":"https://openalex.org/keywords/liveness","display_name":"Liveness","score":0.5872225165367126},{"id":"https://openalex.org/keywords/static-analysis","display_name":"Static analysis","score":0.5861471891403198},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.5679731369018555},{"id":"https://openalex.org/keywords/transformation","display_name":"Transformation (genetics)","score":0.5529912114143372},{"id":"https://openalex.org/keywords/dependent-type","display_name":"Dependent type","score":0.5410986542701721},{"id":"https://openalex.org/keywords/program-analysis","display_name":"Program analysis","score":0.524926483631134},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.520313024520874},{"id":"https://openalex.org/keywords/type","display_name":"Type (biology)","score":0.5173673033714294},{"id":"https://openalex.org/keywords/program-optimization","display_name":"Program optimization","score":0.5108335018157959},{"id":"https://openalex.org/keywords/type-safety","display_name":"Type safety","score":0.46193209290504456},{"id":"https://openalex.org/keywords/abstract-interpretation","display_name":"Abstract interpretation","score":0.4593863785266876},{"id":"https://openalex.org/keywords/optimizing-compiler","display_name":"Optimizing compiler","score":0.4391198754310608},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.4251471757888794},{"id":"https://openalex.org/keywords/dead-code-elimination","display_name":"Dead code elimination","score":0.4222368597984314},{"id":"https://openalex.org/keywords/variable","display_name":"Variable (mathematics)","score":0.41326600313186646},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.41090771555900574},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.4070373773574829},{"id":"https://openalex.org/keywords/code-generation","display_name":"Code generation","score":0.3287954330444336},{"id":"https://openalex.org/keywords/redundant-code","display_name":"Redundant code","score":0.2286921739578247},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.170032799243927},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.11072716116905212},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.10073193907737732},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09027960896492004}],"concepts":[{"id":"https://openalex.org/C198370458","wikidata":"https://www.wikidata.org/wiki/Q586459","display_name":"Type inference","level":3,"score":0.8842285871505737},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7597206830978394},{"id":"https://openalex.org/C169590947","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler","level":2,"score":0.6000123620033264},{"id":"https://openalex.org/C2778361913","wikidata":"https://www.wikidata.org/wiki/Q7248437","display_name":"Program transformation","level":2,"score":0.5916607975959778},{"id":"https://openalex.org/C15569618","wikidata":"https://www.wikidata.org/wiki/Q3561421","display_name":"Liveness","level":2,"score":0.5872225165367126},{"id":"https://openalex.org/C97686452","wikidata":"https://www.wikidata.org/wiki/Q7604153","display_name":"Static analysis","level":2,"score":0.5861471891403198},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.5679731369018555},{"id":"https://openalex.org/C204241405","wikidata":"https://www.wikidata.org/wiki/Q461499","display_name":"Transformation (genetics)","level":3,"score":0.5529912114143372},{"id":"https://openalex.org/C20528804","wikidata":"https://www.wikidata.org/wiki/Q997433","display_name":"Dependent type","level":3,"score":0.5410986542701721},{"id":"https://openalex.org/C98183937","wikidata":"https://www.wikidata.org/wiki/Q2112188","display_name":"Program analysis","level":2,"score":0.524926483631134},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.520313024520874},{"id":"https://openalex.org/C2777299769","wikidata":"https://www.wikidata.org/wiki/Q3707858","display_name":"Type (biology)","level":2,"score":0.5173673033714294},{"id":"https://openalex.org/C139571649","wikidata":"https://www.wikidata.org/wiki/Q1156793","display_name":"Program optimization","level":3,"score":0.5108335018157959},{"id":"https://openalex.org/C44779574","wikidata":"https://www.wikidata.org/wiki/Q736866","display_name":"Type safety","level":2,"score":0.46193209290504456},{"id":"https://openalex.org/C2780654840","wikidata":"https://www.wikidata.org/wiki/Q333341","display_name":"Abstract interpretation","level":2,"score":0.4593863785266876},{"id":"https://openalex.org/C190902152","wikidata":"https://www.wikidata.org/wiki/Q1325106","display_name":"Optimizing compiler","level":3,"score":0.4391198754310608},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.4251471757888794},{"id":"https://openalex.org/C2144512","wikidata":"https://www.wikidata.org/wiki/Q1143090","display_name":"Dead code elimination","level":5,"score":0.4222368597984314},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.41326600313186646},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.41090771555900574},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.4070373773574829},{"id":"https://openalex.org/C133162039","wikidata":"https://www.wikidata.org/wiki/Q1061077","display_name":"Code generation","level":3,"score":0.3287954330444336},{"id":"https://openalex.org/C151578736","wikidata":"https://www.wikidata.org/wiki/Q1251793","display_name":"Redundant code","level":4,"score":0.2286921739578247},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.170032799243927},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.11072716116905212},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.10073193907737732},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09027960896492004},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","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/C62073222","wikidata":"https://www.wikidata.org/wiki/Q1572108","display_name":"Natural deduction","level":2,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"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":1,"locations":[{"id":"doi:10.1145/1140335.1140365","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1140335.1140365","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th ACM SIGPLAN international conference on Principles and practice of declarative programming","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W1501401133","https://openalex.org/W1514384332","https://openalex.org/W1551330847","https://openalex.org/W1553894716","https://openalex.org/W1829244603","https://openalex.org/W1971388424","https://openalex.org/W1973576343","https://openalex.org/W1982205631","https://openalex.org/W2000722076","https://openalex.org/W2002411399","https://openalex.org/W2010452422","https://openalex.org/W2025317174","https://openalex.org/W2034711041","https://openalex.org/W2037803465","https://openalex.org/W2064820590","https://openalex.org/W2065635796","https://openalex.org/W2065826255","https://openalex.org/W2069107692","https://openalex.org/W2069996154","https://openalex.org/W2072210851","https://openalex.org/W2076015364","https://openalex.org/W2078314687","https://openalex.org/W2082709037","https://openalex.org/W2101811680","https://openalex.org/W2102890180","https://openalex.org/W2105360973","https://openalex.org/W2125346056","https://openalex.org/W2127919458","https://openalex.org/W2128350517","https://openalex.org/W2135488322","https://openalex.org/W2144540543","https://openalex.org/W2149127686","https://openalex.org/W2149996206","https://openalex.org/W2156992812","https://openalex.org/W4246798589","https://openalex.org/W4247332426"],"related_works":["https://openalex.org/W1726238843","https://openalex.org/W3141365533","https://openalex.org/W3091937109","https://openalex.org/W3098470576","https://openalex.org/W127052848","https://openalex.org/W2679101877","https://openalex.org/W2170347514","https://openalex.org/W2112150205","https://openalex.org/W1575522358","https://openalex.org/W2129897994"],"abstract_inverted_index":{"This":[0],"paper":[1],"develops":[2],"a":[3,18,21,47,51,70,80,88,94,99,105],"static":[4,9,106,161],"type":[5,16,19,42,71,76,89,95,140],"system":[6],"equivalent":[7],"to":[8,54,108,131,149],"single":[10],"assignment":[11,33],"(SSA)":[12],"form.":[13,59],"In":[14],"this":[15,41,61,118,139],"system,":[17,43],"of":[20,50,133,138,152,173],"variable":[22],"at":[23],"some":[24],"program":[25,38,52,56],"point":[26],"represents":[27],"the":[28,32,37,55,123],"control":[29],"flows":[30],"from":[31,98],"statements":[34],"that":[35,46,92,144],"reach":[36],"point.":[39],"For":[40],"we":[44,86,178],"show":[45],"derivable":[48],"typing":[49],"corresponds":[53],"in":[57,74],"SSA":[58,64,84,109],"By":[60,78],"result,":[62],"any":[63],"transformation":[65],"can":[66,155],"be":[67,157],"interpreted":[68],"as":[69,170,181],"inference":[72,90],"process":[73,119],"our":[75],"system.":[77],"adopting":[79],"result":[81],"on":[82],"efficient":[83],"transformation,":[85],"develop":[87],"algorithm":[91],"reconstructs":[93],"annotated":[96],"code":[97,115,167,183],"given":[100],"code.":[101],"These":[102],"results":[103],"provide":[104],"alternative":[107],"based":[110,141],"compiler":[111],"optimization":[112,168],"without":[113],"performing":[114],"transformation.":[116],"Since":[117],"does":[120,126],"not":[121,127,147],"change":[122],"code,":[124],"it":[125,145],"incur":[128],"overhead":[129],"due":[130],"insertion":[132],"\u03c6":[134],"functions.":[135],"Another":[136],"advantage":[137],"approach":[142],"is":[143,146],"constrained":[148],"naming":[150],"mechanism":[151],"variables":[153],"and":[154,166],"therefore":[156],"combined":[158],"with":[159],"other":[160],"properties":[162],"useful":[163],"for":[164],"compilation":[165],"such":[169],"liveness":[171],"information":[172],"variables.":[174],"As":[175],"an":[176],"application,":[177],"express":[179],"optimizations":[180],"type-directed":[182],"transformations":[184]},"counts_by_year":[{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
