{"id":"https://openalex.org/W4406620735","doi":"https://doi.org/10.58459/icce.2014.347","title":"Evaluation of Difficulty Estimation for Learning Materials Recommendation","display_name":"Evaluation of Difficulty Estimation for Learning Materials Recommendation","publication_year":2014,"publication_date":"2014-11-30","ids":{"openalex":"https://openalex.org/W4406620735","doi":"https://doi.org/10.58459/icce.2014.347"},"language":"en","primary_location":{"id":"doi:10.58459/icce.2014.347","is_oa":true,"landing_page_url":"https://doi.org/10.58459/icce.2014.347","pdf_url":"https://library.apsce.net/index.php/ICCE/article/download/347/312","source":{"id":"https://openalex.org/S5407049172","display_name":"International Conference on Computers in Education","issn_l":"3078-4360","issn":["3078-4360"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Conference on Computers in Education","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://library.apsce.net/index.php/ICCE/article/download/347/312","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071189878","display_name":"Yasuo Miyoshi","orcid":"https://orcid.org/0000-0001-8535-4008"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Yasuo MIYOSHI","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020294120","display_name":"Kazuhiro Suzuki","orcid":"https://orcid.org/0000-0002-9081-538X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kazuhiro SUZUKI","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012845607","display_name":"Ken-ichi Shiota","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ken-ichi SHIOTA","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5080456194","display_name":"Ryo Okamoto","orcid":"https://orcid.org/0000-0001-9529-2525"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ryo OKAMOTO","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5071189878"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.37412636,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11902","display_name":"Intelligent Tutoring Systems and Adaptive Learning","score":0.9570000171661377,"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/T11902","display_name":"Intelligent Tutoring Systems and Adaptive Learning","score":0.9570000171661377,"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/T14025","display_name":"Educational Technology and Assessment","score":0.951200008392334,"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/T11122","display_name":"Online Learning and Analytics","score":0.9365000128746033,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/estimation","display_name":"Estimation","score":0.6428945660591125},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5156263709068298},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3982684016227722},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.38918012380599976},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.17433172464370728},{"id":"https://openalex.org/keywords/systems-engineering","display_name":"Systems engineering","score":0.05349278450012207}],"concepts":[{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.6428945660591125},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5156263709068298},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3982684016227722},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.38918012380599976},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17433172464370728},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.05349278450012207}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.58459/icce.2014.347","is_oa":true,"landing_page_url":"https://doi.org/10.58459/icce.2014.347","pdf_url":"https://library.apsce.net/index.php/ICCE/article/download/347/312","source":{"id":"https://openalex.org/S5407049172","display_name":"International Conference on Computers in Education","issn_l":"3078-4360","issn":["3078-4360"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Conference on Computers in Education","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.58459/icce.2014.347","is_oa":true,"landing_page_url":"https://doi.org/10.58459/icce.2014.347","pdf_url":"https://library.apsce.net/index.php/ICCE/article/download/347/312","source":{"id":"https://openalex.org/S5407049172","display_name":"International Conference on Computers in Education","issn_l":"3078-4360","issn":["3078-4360"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Conference on Computers in Education","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8843426677","display_name":"Learning Contents Recommendation Method in Consideration to Match Difficulty and Proficiency","funder_award_id":"25330364","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4406620735.pdf","grobid_xml":"https://content.openalex.org/works/W4406620735.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2961085424","https://openalex.org/W4306674287","https://openalex.org/W4387369504","https://openalex.org/W3046775127","https://openalex.org/W4394896187","https://openalex.org/W3170094116","https://openalex.org/W4386462264","https://openalex.org/W3107602296","https://openalex.org/W4364306694","https://openalex.org/W4312192474"],"abstract_inverted_index":{"The":[0,59],"popular":[1],"technology":[2],"for":[3,31,52],"the":[4,32,70,90,96,100],"information":[5,16],"recommendation":[6,33,53],"of":[7,34,45,50,56,69,102],"books":[8],"or":[9],"web":[10],"pages":[11],"is":[12,22],"based":[13,26],"on":[14,27],"taste":[15],"from":[17],"many":[18],"users,":[19],"but":[20],"it":[21],"important":[23],"to":[24,42,83,88],"be":[25],"difficulty":[28,44,55],"and":[29,48,75,93],"proficiency":[30,49],"learning":[35,46,57],"materials.":[36,58],"We":[37],"have":[38],"developed":[39],"an":[40,85],"algorithm":[41,60],"estimate":[43],"materials":[47,74],"learners,":[51],"considering":[54],"uses":[61],"only":[62],"a":[63],"bipartite":[64],"learner-material":[65],"graph":[66],"that":[67,98],"consists":[68],"reader":[71],"relations":[72],"with":[73],"learners.":[76],"In":[77],"this":[78],"paper,":[79],"we":[80],"describe":[81],"how":[82],"make":[84],"accurate":[86],"data":[87],"evaluate":[89],"estimated":[91],"difficulty,":[92],"report":[94],"about":[95],"result":[97],"evaluated":[99],"precision":[101],"our":[103],"proposed":[104],"algorithm.":[105]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2026-04-21T08:09:41.155169","created_date":"2025-10-10T00:00:00"}