{"id":"https://openalex.org/W2914531615","doi":"https://doi.org/10.1016/s0360-1315(01)00018-5","title":"Online Judge","display_name":"Online Judge","publication_year":2001,"publication_date":"2001-05-01","ids":{"openalex":"https://openalex.org/W2914531615","doi":"https://doi.org/10.1016/s0360-1315(01)00018-5","mag":"2914531615"},"language":"en","primary_location":{"id":"doi:10.1016/s0360-1315(01)00018-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0360-1315(01)00018-5","pdf_url":null,"source":{"id":"https://openalex.org/S4210172634","display_name":"Computers & Education","issn_l":"0360-1315","issn":["0360-1315","1873-782X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers &amp; Education","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/A5002529712","display_name":"Andy Kurnia","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Andy Kurnia","raw_affiliation_strings":["Department of Computer Science, National University of Singapore, 3 Science Drive 2, 117543 Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, National University of Singapore, 3 Science Drive 2, 117543 Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102741528","display_name":"Andrew Lim","orcid":"https://orcid.org/0000-0003-0510-8080"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Andrew Lim","raw_affiliation_strings":["Department of Computer Science, National University of Singapore, 3 Science Drive 2, 117543 Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, National University of Singapore, 3 Science Drive 2, 117543 Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5065307455","display_name":"Brenda Cheang","orcid":"https://orcid.org/0000-0002-4998-5168"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Brenda Cheang","raw_affiliation_strings":["I-OPT, 5 Jalan Besar, Ong Ban Hong Leong Bldg, 03-01A, 208785 Singapore"],"affiliations":[{"raw_affiliation_string":"I-OPT, 5 Jalan Besar, Ong Ban Hong Leong Bldg, 03-01A, 208785 Singapore","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5002529712"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":{"value":4220,"currency":"USD","value_usd":4220},"apc_paid":null,"fwci":4.0832,"has_fulltext":false,"cited_by_count":109,"citation_normalized_percentile":{"value":0.95277129,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"36","issue":"4","first_page":"299","last_page":"315"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14025","display_name":"Educational Technology and Assessment","score":0.9309999942779541,"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/T14025","display_name":"Educational Technology and Assessment","score":0.9309999942779541,"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/T11902","display_name":"Intelligent Tutoring Systems and Adaptive Learning","score":0.9158999919891357,"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/grading","display_name":"Grading (engineering)","score":0.8732746839523315},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7777218818664551},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3808109164237976},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10543614625930786}],"concepts":[{"id":"https://openalex.org/C2777286243","wikidata":"https://www.wikidata.org/wiki/Q5591926","display_name":"Grading (engineering)","level":2,"score":0.8732746839523315},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7777218818664551},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3808109164237976},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10543614625930786},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0360-1315(01)00018-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0360-1315(01)00018-5","pdf_url":null,"source":{"id":"https://openalex.org/S4210172634","display_name":"Computers & Education","issn_l":"0360-1315","issn":["0360-1315","1873-782X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers &amp; Education","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.6100000143051147}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W2034632548","https://openalex.org/W2041688274","https://openalex.org/W2054477138","https://openalex.org/W2074736926","https://openalex.org/W2092989624"],"related_works":["https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2064165679","https://openalex.org/W2358668433","https://openalex.org/W1588461101","https://openalex.org/W2376932109","https://openalex.org/W3208525924","https://openalex.org/W2885058781","https://openalex.org/W2382290278"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":16},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":6},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":11},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":9},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2019-02-21T00:00:00"}
