{"id":"https://openalex.org/W4393160576","doi":"https://doi.org/10.1609/aaai.v38i18.30018","title":"Direct Amortized Likelihood Ratio Estimation","display_name":"Direct Amortized Likelihood Ratio Estimation","publication_year":2024,"publication_date":"2024-03-24","ids":{"openalex":"https://openalex.org/W4393160576","doi":"https://doi.org/10.1609/aaai.v38i18.30018"},"language":"en","primary_location":{"id":"doi:10.1609/aaai.v38i18.30018","is_oa":true,"landing_page_url":"https://doi.org/10.1609/aaai.v38i18.30018","pdf_url":"https://ojs.aaai.org/index.php/AAAI/article/download/30018/31790","source":{"id":"https://openalex.org/S4210191458","display_name":"Proceedings of the AAAI Conference on Artificial Intelligence","issn_l":"2159-5399","issn":["2159-5399","2374-3468"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320058","host_organization_name":"Association for the Advancement of Artificial Intelligence","host_organization_lineage":["https://openalex.org/P4310320058"],"host_organization_lineage_names":["Association for the Advancement of Artificial Intelligence"],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the AAAI Conference on Artificial Intelligence","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://ojs.aaai.org/index.php/AAAI/article/download/30018/31790","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5030699148","display_name":"Adam D. Cobb","orcid":"https://orcid.org/0000-0003-2868-6983"},"institutions":[{"id":"https://openalex.org/I1298353152","display_name":"SRI International","ror":"https://ror.org/05s570m15","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1298353152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Adam D. Cobb","raw_affiliation_strings":["SRI International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SRI International","institution_ids":["https://openalex.org/I1298353152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084050272","display_name":"Brian Matejek","orcid":"https://orcid.org/0000-0002-3517-9229"},"institutions":[{"id":"https://openalex.org/I1298353152","display_name":"SRI International","ror":"https://ror.org/05s570m15","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1298353152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Brian Matejek","raw_affiliation_strings":["SRI International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SRI International","institution_ids":["https://openalex.org/I1298353152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007525901","display_name":"Daniel Elenius","orcid":null},"institutions":[{"id":"https://openalex.org/I1298353152","display_name":"SRI International","ror":"https://ror.org/05s570m15","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1298353152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Daniel Elenius","raw_affiliation_strings":["SRI International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SRI International","institution_ids":["https://openalex.org/I1298353152"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076846018","display_name":"Anirban Roy","orcid":"https://orcid.org/0009-0000-6889-0204"},"institutions":[{"id":"https://openalex.org/I1298353152","display_name":"SRI International","ror":"https://ror.org/05s570m15","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1298353152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Anirban Roy","raw_affiliation_strings":["SRI International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SRI International","institution_ids":["https://openalex.org/I1298353152"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108145901","display_name":"Susmit Jha","orcid":null},"institutions":[{"id":"https://openalex.org/I1298353152","display_name":"SRI International","ror":"https://ror.org/05s570m15","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1298353152"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Susmit Jha","raw_affiliation_strings":["SRI International"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SRI International","institution_ids":["https://openalex.org/I1298353152"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1298353152"],"apc_list":null,"apc_paid":null,"fwci":0.358,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":{"value":0.56,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"38","issue":"18","first_page":"20362","last_page":"20369"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.5734999775886536,"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"}},"topics":[{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.5734999775886536,"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/T10320","display_name":"Neural Networks and Applications","score":0.49810001254081726,"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/statistics","display_name":"Statistics","score":0.4857635796070099},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.4711049199104309},{"id":"https://openalex.org/keywords/amortized-analysis","display_name":"Amortized analysis","score":0.44875723123550415},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.44309723377227783},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.35203099250793457},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.12002784013748169},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.07734444737434387},{"id":"https://openalex.org/keywords/data-structure","display_name":"Data structure","score":0.05321231484413147}],"concepts":[{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.4857635796070099},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.4711049199104309},{"id":"https://openalex.org/C142417499","wikidata":"https://www.wikidata.org/wiki/Q331716","display_name":"Amortized analysis","level":3,"score":0.44875723123550415},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.44309723377227783},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.35203099250793457},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.12002784013748169},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.07734444737434387},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.05321231484413147},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1609/aaai.v38i18.30018","is_oa":true,"landing_page_url":"https://doi.org/10.1609/aaai.v38i18.30018","pdf_url":"https://ojs.aaai.org/index.php/AAAI/article/download/30018/31790","source":{"id":"https://openalex.org/S4210191458","display_name":"Proceedings of the AAAI Conference on Artificial Intelligence","issn_l":"2159-5399","issn":["2159-5399","2374-3468"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320058","host_organization_name":"Association for the Advancement of Artificial Intelligence","host_organization_lineage":["https://openalex.org/P4310320058"],"host_organization_lineage_names":["Association for the Advancement of Artificial Intelligence"],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the AAAI Conference on Artificial Intelligence","raw_type":"journal-article"},{"id":"pmh:oai:ojs.aaai.org:article/30018","is_oa":false,"landing_page_url":"https://ojs.aaai.org/index.php/AAAI/article/view/30018","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"2159-5399","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1609/aaai.v38i18.30018","is_oa":true,"landing_page_url":"https://doi.org/10.1609/aaai.v38i18.30018","pdf_url":"https://ojs.aaai.org/index.php/AAAI/article/download/30018/31790","source":{"id":"https://openalex.org/S4210191458","display_name":"Proceedings of the AAAI Conference on Artificial Intelligence","issn_l":"2159-5399","issn":["2159-5399","2374-3468"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320058","host_organization_name":"Association for the Advancement of Artificial Intelligence","host_organization_lineage":["https://openalex.org/P4310320058"],"host_organization_lineage_names":["Association for the Advancement of Artificial Intelligence"],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the AAAI Conference on Artificial Intelligence","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4713059963","display_name":null,"funder_award_id":"FA8750","funder_id":"https://openalex.org/F4320332180","funder_display_name":"Defense Advanced Research Projects Agency"},{"id":"https://openalex.org/G582811720","display_name":null,"funder_award_id":"FA8750-20-C-0002","funder_id":"https://openalex.org/F4320332180","funder_display_name":"Defense Advanced Research Projects Agency"}],"funders":[{"id":"https://openalex.org/F4320332180","display_name":"Defense Advanced Research Projects Agency","ror":"https://ror.org/02caytj08"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4393160576.pdf","grobid_xml":"https://content.openalex.org/works/W4393160576.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W1979597421","https://openalex.org/W2007980826","https://openalex.org/W2061531152","https://openalex.org/W3002753104","https://openalex.org/W2077600819","https://openalex.org/W2142036596","https://openalex.org/W2072657027","https://openalex.org/W2600246793","https://openalex.org/W4238204885"],"abstract_inverted_index":{"We":[0,59,87,102,142],"introduce":[1,119],"a":[2,25,79,115,120,158,172],"new":[3,90,106,121],"amortized":[4],"likelihood":[5,22,38,125],"ratio":[6,23,39,68,91,97,107,126,168],"estimator":[7,14,69,92,108,123,169],"for":[8,124],"likelihood-free":[9,133],"simulation-based":[10],"inference":[11],"(SBI).":[12],"Our":[13,33],"is":[15,46,146,175],"simple":[16],"to":[17,61,95,131,170],"train":[18],"and":[19,93],"estimates":[20],"the":[21,30,37,49,65,75,85,100],"using":[24,165],"single":[26],"forward":[27],"pass":[28],"of":[29,52,73,84,162],"neural":[31,55,67,167],"estimator.":[32],"approach":[34,51],"directly":[35],"computes":[36],"between":[40],"two":[41,54],"competing":[42],"parameter":[43],"sets":[44],"which":[45,149],"different":[47],"from":[48],"previous":[50,96,112],"comparing":[53],"network":[56],"output":[57],"values.":[58],"refer":[60],"our":[62,89,105,166],"model":[63],"as":[64],"direct":[66],"(DNRE).":[70],"As":[71,114],"part":[72],"introducing":[74],"DNRE,":[76],"we":[77,118,156],"derive":[78],"corresponding":[80],"Monte":[81,135],"Carlo":[82,136],"estimate":[83],"posterior.":[86],"benchmark":[88],"compare":[94,132],"estimators":[98,127],"in":[99],"literature.":[101],"show":[103,143],"that":[104,128,144],"often":[109],"outperforms":[110],"these":[111],"approaches.":[113],"further":[116],"contribution,":[117],"derivative":[122],"enables":[129],"us":[130],"Hamiltonian":[134],"(HMC)":[137],"with":[138],"random-walk":[139],"Metropolis-Hastings":[140],"(MH).":[141],"HMC":[145],"equally":[147],"competitive,":[148],"has":[150],"not":[151],"been":[152],"previously":[153],"shown.":[154],"Finally,":[155],"include":[157],"novel":[159],"real-world":[160],"application":[161],"SBI":[163],"by":[164],"design":[171],"quadcopter.":[173],"Code":[174],"available":[176],"at":[177],"https://github.com/SRI-CSL/dnre.":[178]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1}],"updated_date":"2026-07-03T08:13:44.112507","created_date":"2025-10-10T00:00:00"}