{"id":"https://openalex.org/W2158740117","doi":"https://doi.org/10.4304/jcp.9.2.308-314","title":"A Robust Collaborative Recommendation Algorithm Based on Least Median Squares Estimator","display_name":"A Robust Collaborative Recommendation Algorithm Based on Least Median Squares Estimator","publication_year":2014,"publication_date":"2014-02-01","ids":{"openalex":"https://openalex.org/W2158740117","doi":"https://doi.org/10.4304/jcp.9.2.308-314","mag":"2158740117"},"language":"en","primary_location":{"id":"doi:10.4304/jcp.9.2.308-314","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.9.2.308-314","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computers","raw_type":"journal-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/A5025520904","display_name":"Fuzhi Zhang","orcid":"https://orcid.org/0000-0002-9595-3589"},"institutions":[{"id":"https://openalex.org/I39333907","display_name":"Yanshan University","ror":"https://ror.org/02txfnf15","country_code":"CN","type":"education","lineage":["https://openalex.org/I39333907"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fuzhi Zhang","raw_affiliation_strings":["Yanshan  University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yanshan  University","institution_ids":["https://openalex.org/I39333907"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076464574","display_name":"Shuangxia Sun","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Shuangxia Sun","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4611,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.9177189,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"9","issue":"2","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9783999919891357,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9624999761581421,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/movielens","display_name":"MovieLens","score":0.80080246925354},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.7367640137672424},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6331276893615723},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.6273964643478394},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.5898917317390442},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5262748003005981},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.471251517534256},{"id":"https://openalex.org/keywords/robust-statistics","display_name":"Robust statistics","score":0.4124698340892792},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3395082950592041},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2278614044189453},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.1776723563671112}],"concepts":[{"id":"https://openalex.org/C2776156558","wikidata":"https://www.wikidata.org/wiki/Q4353746","display_name":"MovieLens","level":4,"score":0.80080246925354},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.7367640137672424},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6331276893615723},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.6273964643478394},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.5898917317390442},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5262748003005981},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.471251517534256},{"id":"https://openalex.org/C67226441","wikidata":"https://www.wikidata.org/wiki/Q1665389","display_name":"Robust statistics","level":3,"score":0.4124698340892792},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3395082950592041},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2278614044189453},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.1776723563671112},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.4304/jcp.9.2.308-314","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.9.2.308-314","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computers","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/8","score":0.49000000953674316,"display_name":"Decent work and economic growth"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W107297539","https://openalex.org/W191374941","https://openalex.org/W1536558110","https://openalex.org/W1976135593","https://openalex.org/W1990929462","https://openalex.org/W1994389483","https://openalex.org/W1996717570","https://openalex.org/W1999750135","https://openalex.org/W2000855935","https://openalex.org/W2047109571","https://openalex.org/W2054141820","https://openalex.org/W2070375326","https://openalex.org/W2080320419","https://openalex.org/W2089276320","https://openalex.org/W2100235918","https://openalex.org/W2137245235","https://openalex.org/W2142651607","https://openalex.org/W2165949563","https://openalex.org/W2172249709","https://openalex.org/W2972531390","https://openalex.org/W4285719527","https://openalex.org/W6604367445","https://openalex.org/W6607885210","https://openalex.org/W6647835462","https://openalex.org/W6649593837","https://openalex.org/W6650630306","https://openalex.org/W6668211318","https://openalex.org/W6672825394","https://openalex.org/W7070499600"],"related_works":["https://openalex.org/W2355698112","https://openalex.org/W2022984797","https://openalex.org/W2986679525","https://openalex.org/W2797500822","https://openalex.org/W2794458286","https://openalex.org/W4205822456","https://openalex.org/W4299358966","https://openalex.org/W2537367858","https://openalex.org/W2981634480","https://openalex.org/W4288082747"],"abstract_inverted_index":{"The":[0],"existing":[1,124],"matrix":[2,94],"factorization":[3],"based":[4,29],"collaborative":[5,26,104],"recommendation":[6,27,105],"algorithms":[7],"have":[8],"lower":[9],"robustness":[10],"against":[11],"shilling":[12,72],"attacks.":[13,73],"With":[14],"this":[15,20],"problem":[16],"in":[17,19,84,126],"mind,":[18],"paper":[21],"we":[22,75,100],"propose":[23,37],"a":[24,38,102],"robust":[25,58,89,103],"algorithm":[28,106,121],"on":[30,112],"least":[31,52],"median":[32,53],"squares":[33,54],"estimator.":[34],"We":[35],"first":[36],"method":[39,78],"of":[40,57,65,79,91,128],"weight":[41,80],"calculation":[42,81],"to":[43,82,86,107],"filter":[44],"out":[45],"the":[46,51,63,77,88,119,123,130],"largest":[47],"residuals":[48],"by":[49,71],"introducing":[50],"estimator":[55],"(LMedS-estimator)":[56],"statistics,":[59],"which":[60],"can":[61],"reduce":[62],"increment":[64],"target":[66],"item\u2019s":[67],"feature":[68,93,97],"vector":[69],"caused":[70],"Then":[74],"apply":[76],"RLS-estimator":[83],"order":[85],"realize":[87],"estimate":[90],"user":[92],"and":[95,133],"item":[96],"matrix.":[98],"Finally,":[99],"develop":[101],"make":[108],"predictions.":[109],"Experimental":[110],"results":[111],"two":[113],"different-scale":[114],"MovieLens":[115],"datasets":[116],"show":[117],"that":[118],"proposed":[120],"outperforms":[122],"methods":[125],"terms":[127],"both":[129],"prediction":[131],"accuracy":[132],"robustness.":[134]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}