{"id":"https://openalex.org/W7131067420","doi":"https://doi.org/10.1109/cgo68049.2026.11394846","title":"LEGO: A Layout Expression Language for Code Generation of Hierarchical Mapping","display_name":"LEGO: A Layout Expression Language for Code Generation of Hierarchical Mapping","publication_year":2026,"publication_date":"2026-01-31","ids":{"openalex":"https://openalex.org/W7131067420","doi":"https://doi.org/10.1109/cgo68049.2026.11394846"},"language":null,"primary_location":{"id":"doi:10.1109/cgo68049.2026.11394846","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cgo68049.2026.11394846","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE/ACM International Symposium on Code Generation and Optimization (CGO)","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/A5035272342","display_name":"Amir Mohammad Tavakkoli","orcid":"https://orcid.org/0009-0006-2990-1496"},"institutions":[{"id":"https://openalex.org/I223532165","display_name":"University of Utah","ror":"https://ror.org/03r0ha626","country_code":"US","type":"education","lineage":["https://openalex.org/I223532165"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Amir Mohammad Tavakkoli","raw_affiliation_strings":["University of Utah,Kahlert School of Computing,Salt Lake City,USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Utah,Kahlert School of Computing,Salt Lake City,USA","institution_ids":["https://openalex.org/I223532165"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080735312","display_name":"Cosmin E. Oancea","orcid":"https://orcid.org/0000-0001-5421-6876"},"institutions":[{"id":"https://openalex.org/I124055696","display_name":"University of Copenhagen","ror":"https://ror.org/035b05819","country_code":"DK","type":"education","lineage":["https://openalex.org/I124055696"]},{"id":"https://openalex.org/I4210088332","display_name":"University College Copenhagen","ror":"https://ror.org/004r9h172","country_code":"DK","type":"education","lineage":["https://openalex.org/I4210088332"]},{"id":"https://openalex.org/I83467386","display_name":"IT University of Copenhagen","ror":"https://ror.org/02309jg23","country_code":"DK","type":"education","lineage":["https://openalex.org/I83467386"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"Cosmin E. Oancea","raw_affiliation_strings":["University of Copenhagen,Dept. of Computer Science,Copenhagen,Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Copenhagen,Dept. of Computer Science,Copenhagen,Denmark","institution_ids":["https://openalex.org/I124055696","https://openalex.org/I83467386","https://openalex.org/I4210088332"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011519466","display_name":"Mary Jane Hall","orcid":null},"institutions":[{"id":"https://openalex.org/I223532165","display_name":"University of Utah","ror":"https://ror.org/03r0ha626","country_code":"US","type":"education","lineage":["https://openalex.org/I223532165"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mary Hall","raw_affiliation_strings":["University of Utah,Kahlert School of Computing,Salt Lake City,USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Utah,Kahlert School of Computing,Salt Lake City,USA","institution_ids":["https://openalex.org/I223532165"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":22.0762,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.98359948,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"228","last_page":"241"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11450","display_name":"Model-Driven Software Engineering Techniques","score":0.5026000142097473,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T11450","display_name":"Model-Driven Software Engineering Techniques","score":0.5026000142097473,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T12490","display_name":"Software Engineering and Design Patterns","score":0.04340000078082085,"subfield":{"id":"https://openalex.org/subfields/3303","display_name":"Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11904","display_name":"Spatial Cognition and Navigation","score":0.03689999878406525,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/code-generation","display_name":"Code generation","score":0.7692999839782715},{"id":"https://openalex.org/keywords/compiler","display_name":"Compiler","score":0.6650999784469604},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.6489999890327454},{"id":"https://openalex.org/keywords/cuda","display_name":"CUDA","score":0.6183000206947327},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.5022000074386597},{"id":"https://openalex.org/keywords/thread","display_name":"Thread (computing)","score":0.41019999980926514},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.4077000021934509},{"id":"https://openalex.org/keywords/data-integration","display_name":"Data integration","score":0.40540000796318054}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8075000047683716},{"id":"https://openalex.org/C133162039","wikidata":"https://www.wikidata.org/wiki/Q1061077","display_name":"Code generation","level":3,"score":0.7692999839782715},{"id":"https://openalex.org/C169590947","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler","level":2,"score":0.6650999784469604},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.6489999890327454},{"id":"https://openalex.org/C2778119891","wikidata":"https://www.wikidata.org/wiki/Q477690","display_name":"CUDA","level":2,"score":0.6183000206947327},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.5051000118255615},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.5022000074386597},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4984000027179718},{"id":"https://openalex.org/C138101251","wikidata":"https://www.wikidata.org/wiki/Q213092","display_name":"Thread (computing)","level":2,"score":0.41019999980926514},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.4077000021934509},{"id":"https://openalex.org/C72634772","wikidata":"https://www.wikidata.org/wiki/Q386824","display_name":"Data integration","level":2,"score":0.40540000796318054},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.38589999079704285},{"id":"https://openalex.org/C138958017","wikidata":"https://www.wikidata.org/wiki/Q190087","display_name":"Data type","level":2,"score":0.37529999017715454},{"id":"https://openalex.org/C118524514","wikidata":"https://www.wikidata.org/wiki/Q173212","display_name":"Computer architecture","level":1,"score":0.35589998960494995},{"id":"https://openalex.org/C137314826","wikidata":"https://www.wikidata.org/wiki/Q2330408","display_name":"Data mapping","level":2,"score":0.34200000762939453},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.32580000162124634},{"id":"https://openalex.org/C144986985","wikidata":"https://www.wikidata.org/wiki/Q871236","display_name":"Hierarchical database model","level":2,"score":0.31769999861717224},{"id":"https://openalex.org/C43126263","wikidata":"https://www.wikidata.org/wiki/Q128751","display_name":"Source code","level":2,"score":0.3000999987125397},{"id":"https://openalex.org/C151578736","wikidata":"https://www.wikidata.org/wiki/Q1251793","display_name":"Redundant code","level":4,"score":0.2987000048160553},{"id":"https://openalex.org/C2780992000","wikidata":"https://www.wikidata.org/wiki/Q17016113","display_name":"Generator (circuit theory)","level":3,"score":0.29030001163482666},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.28029999136924744},{"id":"https://openalex.org/C36464697","wikidata":"https://www.wikidata.org/wiki/Q451553","display_name":"Visualization","level":2,"score":0.27889999747276306},{"id":"https://openalex.org/C47487241","wikidata":"https://www.wikidata.org/wiki/Q5227230","display_name":"Data access","level":2,"score":0.2741999924182892},{"id":"https://openalex.org/C67186912","wikidata":"https://www.wikidata.org/wiki/Q367664","display_name":"Data modeling","level":2,"score":0.2736000120639801},{"id":"https://openalex.org/C56288433","wikidata":"https://www.wikidata.org/wiki/Q58673","display_name":"Data manipulation language","level":2,"score":0.2563999891281128}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/cgo68049.2026.11394846","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cgo68049.2026.11394846","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE/ACM International Symposium on Code Generation and Optimization (CGO)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320322436","display_name":"Novo Nordisk","ror":"https://ror.org/0435rc536"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":54,"referenced_works":["https://openalex.org/W1480909796","https://openalex.org/W1534865885","https://openalex.org/W1966848517","https://openalex.org/W1969289728","https://openalex.org/W1975001341","https://openalex.org/W1980390491","https://openalex.org/W1984303163","https://openalex.org/W2020214444","https://openalex.org/W2028914463","https://openalex.org/W2040825319","https://openalex.org/W2049487370","https://openalex.org/W2063249715","https://openalex.org/W2066139250","https://openalex.org/W2076535184","https://openalex.org/W2077143534","https://openalex.org/W2080592089","https://openalex.org/W2085118703","https://openalex.org/W2116963870","https://openalex.org/W2136871634","https://openalex.org/W2138007781","https://openalex.org/W2159309967","https://openalex.org/W2165207182","https://openalex.org/W2298668594","https://openalex.org/W2417863416","https://openalex.org/W2486796129","https://openalex.org/W2590246587","https://openalex.org/W2613618711","https://openalex.org/W2896831700","https://openalex.org/W2903775786","https://openalex.org/W2954698171","https://openalex.org/W2983923412","https://openalex.org/W2984920043","https://openalex.org/W3033308515","https://openalex.org/W3035965352","https://openalex.org/W3090487264","https://openalex.org/W3108012228","https://openalex.org/W3151489216","https://openalex.org/W3205717712","https://openalex.org/W4210439033","https://openalex.org/W4220690649","https://openalex.org/W4232301837","https://openalex.org/W4239552902","https://openalex.org/W4241766299","https://openalex.org/W4248722156","https://openalex.org/W4295539146","https://openalex.org/W4307380766","https://openalex.org/W4321184872","https://openalex.org/W4321636600","https://openalex.org/W4321636673","https://openalex.org/W4327930469","https://openalex.org/W4379410850","https://openalex.org/W4392265915","https://openalex.org/W4399918171","https://openalex.org/W4401705886"],"related_works":[],"abstract_inverted_index":{"We":[0,74,88],"describe":[1],"LEGO,":[2],"a":[3,15],"new":[4],"approach":[5],"to":[6,49],"optimizing":[7],"data":[8,23,40,67,105],"movement":[9,41],"whereby":[10],"code":[11,27,38,60],"is":[12,92],"expressed":[13],"as":[14],"layout-independent":[16],"computation":[17],"and":[18,24,39,52,59,81,84,100,106,116],"composed":[19],"with":[20,35,71,78,85,98,114],"layouts":[21,68],"for":[22,42,104],"computation.":[25],"This":[26],"generator":[28],"organization":[29],"derives":[30],"complex":[31],"indexing":[32,50],"expressions":[33],"associated":[34],"hierarchical":[36],"parallel":[37],"GPUs.":[43],"LEGO":[44,91],"maps":[45],"from":[46],"layout":[47,108],"specification":[48],"expressions,":[51],"can":[53],"be":[54],"integrated":[55],"into":[56],"existing":[57],"compilers":[58],"templates.":[61,87],"It":[62],"facilitates":[63],"the":[64,79],"explo-ration":[65],"of":[66,94],"in":[69,111],"combination":[70],"other":[72],"optimizations.":[73],"demonstrate":[75],"LEGO\u2019s":[76],"integration":[77,113],"Triton":[80],"MLIR":[82],"compilers,":[83],"CUDA":[86,115],"show":[89],"that":[90],"capable":[93],"deriving":[95],"performance":[96],"competitive":[97],"Triton,":[99],"shows":[101],"broad":[102],"applicability":[103],"thread":[107],"mapping":[109],"optimizations":[110],"its":[112],"MLIR.":[117]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2026-02-24T00:00:00"}