{"id":"https://openalex.org/W7129083608","doi":"https://doi.org/10.1145/3773966.3779381","title":"REFLEX: Reinforcement Feedback Learning with Large Language Models for E-commerce Query Expansion","display_name":"REFLEX: Reinforcement Feedback Learning with Large Language Models for E-commerce Query Expansion","publication_year":2026,"publication_date":"2026-02-16","ids":{"openalex":"https://openalex.org/W7129083608","doi":"https://doi.org/10.1145/3773966.3779381"},"language":null,"primary_location":{"id":"doi:10.1145/3773966.3779381","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3773966.3779381","pdf_url":null,"source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1145/3773966.3779381","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5126109736","display_name":"Yipeng Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I4210150719","display_name":"eBay (United States)","ror":"https://ror.org/05cnabr44","country_code":"US","type":"company","lineage":["https://openalex.org/I4210150719"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Yipeng Zhang","raw_affiliation_strings":["eBay Inc., San Jose, CA, USA"],"raw_orcid":"https://orcid.org/0000-0003-2869-4692","affiliations":[{"raw_affiliation_string":"eBay Inc., San Jose, CA, USA","institution_ids":["https://openalex.org/I4210150719"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Bowen Liu","orcid":"https://orcid.org/0000-0003-4706-6720"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bowen Liu","raw_affiliation_strings":["eBay Inc., Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0003-4706-6720","affiliations":[{"raw_affiliation_string":"eBay Inc., Shanghai, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5126118142","display_name":"Xiaoshuang Zhang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiaoshuang Zhang","raw_affiliation_strings":["eBay Inc., Shanghai, China"],"raw_orcid":"https://orcid.org/0009-0005-1861-8233","affiliations":[{"raw_affiliation_string":"eBay Inc., Shanghai, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059275123","display_name":"Aritra Mandal","orcid":null},"institutions":[{"id":"https://openalex.org/I4210150719","display_name":"eBay (United States)","ror":"https://ror.org/05cnabr44","country_code":"US","type":"company","lineage":["https://openalex.org/I4210150719"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Aritra Mandal","raw_affiliation_strings":["eBay Inc., San Jose, CA, USA"],"raw_orcid":"https://orcid.org/0009-0005-3372-8537","affiliations":[{"raw_affiliation_string":"eBay Inc., San Jose, CA, USA","institution_ids":["https://openalex.org/I4210150719"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110091965","display_name":"Canran Xu","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Canran Xu","raw_affiliation_strings":["eBay Inc., Shanghai, China"],"raw_orcid":"https://orcid.org/0009-0007-4354-7363","affiliations":[{"raw_affiliation_string":"eBay Inc., Shanghai, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5097028516","display_name":"Zhe Wu","orcid":"https://orcid.org/0009-0003-6109-3386"},"institutions":[{"id":"https://openalex.org/I4210150719","display_name":"eBay (United States)","ror":"https://ror.org/05cnabr44","country_code":"US","type":"company","lineage":["https://openalex.org/I4210150719"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhe Wu","raw_affiliation_strings":["eBay Inc., San Jose, CA, USA"],"raw_orcid":"https://orcid.org/0009-0003-6109-3386","affiliations":[{"raw_affiliation_string":"eBay Inc., San Jose, CA, USA","institution_ids":["https://openalex.org/I4210150719"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5126109736"],"corresponding_institution_ids":["https://openalex.org/I4210150719"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.24971692,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1288","last_page":"1292"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.12389999628067017,"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/T10203","display_name":"Recommender Systems and Techniques","score":0.12389999628067017,"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/T12127","display_name":"Software System Performance and Reliability","score":0.06620000302791595,"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":0.0551999993622303,"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/reinforcement-learning","display_name":"Reinforcement learning","score":0.5008999705314636},{"id":"https://openalex.org/keywords/query-expansion","display_name":"Query expansion","score":0.4163999855518341},{"id":"https://openalex.org/keywords/language-model","display_name":"Language model","score":0.3783999979496002},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.3562000095844269},{"id":"https://openalex.org/keywords/query-language","display_name":"Query language","score":0.35260000824928284},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.30230000615119934},{"id":"https://openalex.org/keywords/action","display_name":"Action (physics)","score":0.29980000853538513}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6840999722480774},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5246999859809875},{"id":"https://openalex.org/C97541855","wikidata":"https://www.wikidata.org/wiki/Q830687","display_name":"Reinforcement learning","level":2,"score":0.5008999705314636},{"id":"https://openalex.org/C99016210","wikidata":"https://www.wikidata.org/wiki/Q5488129","display_name":"Query expansion","level":2,"score":0.4163999855518341},{"id":"https://openalex.org/C137293760","wikidata":"https://www.wikidata.org/wiki/Q3621696","display_name":"Language model","level":2,"score":0.3783999979496002},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.3562000095844269},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.35260000824928284},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.335999995470047},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.325300008058548},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.30230000615119934},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.29980000853538513},{"id":"https://openalex.org/C77967617","wikidata":"https://www.wikidata.org/wiki/Q4677561","display_name":"Active learning (machine learning)","level":2,"score":0.29260000586509705},{"id":"https://openalex.org/C96956885","wikidata":"https://www.wikidata.org/wiki/Q6138701","display_name":"RDF query language","level":5,"score":0.29170000553131104},{"id":"https://openalex.org/C196340769","wikidata":"https://www.wikidata.org/wiki/Q7698910","display_name":"Temporal difference learning","level":3,"score":0.2854999899864197},{"id":"https://openalex.org/C157692150","wikidata":"https://www.wikidata.org/wiki/Q2919848","display_name":"Query optimization","level":2,"score":0.2816999852657318},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.28139999508857727},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.27129998803138733},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.2711000144481659},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.25529998540878296}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3773966.3779381","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3773966.3779381","pdf_url":null,"source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3773966.3779381","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3773966.3779381","pdf_url":null,"source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1993692165","https://openalex.org/W3129831491","https://openalex.org/W3152151101","https://openalex.org/W3175980629","https://openalex.org/W4386080653","https://openalex.org/W4389518671","https://openalex.org/W4396843633","https://openalex.org/W4409362684"],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-02-18T06:20:13.636215","created_date":"2026-02-17T00:00:00"}