{"id":"https://openalex.org/W2079753891","doi":"https://doi.org/10.1145/2023607.2023691","title":"E = MA<sup>2</sup>(e-learning in a Moodle-based adaptive and accumulative system)","display_name":"E = MA<sup>2</sup>(e-learning in a Moodle-based adaptive and accumulative system)","publication_year":2011,"publication_date":"2011-01-01","ids":{"openalex":"https://openalex.org/W2079753891","doi":"https://doi.org/10.1145/2023607.2023691","mag":"2079753891"},"language":"en","primary_location":{"id":"doi:10.1145/2023607.2023691","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2023607.2023691","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th International Conference on Computer Systems and Technologies - CompSysTech '11","raw_type":"proceedings-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/A5028842026","display_name":"Hristo Indzhov","orcid":null},"institutions":[{"id":"https://openalex.org/I192878625","display_name":"Plovdiv University","ror":"https://ror.org/0545p3742","country_code":"BG","type":"education","lineage":["https://openalex.org/I192878625"]}],"countries":["BG"],"is_corresponding":true,"raw_author_name":"Hristo Indzhov","raw_affiliation_strings":["University of Plovdiv \"Paisii Hilendarski\"","University of Plovdiv Paisii Hilendarski"],"affiliations":[{"raw_affiliation_string":"University of Plovdiv \"Paisii Hilendarski\"","institution_ids":["https://openalex.org/I192878625"]},{"raw_affiliation_string":"University of Plovdiv Paisii Hilendarski","institution_ids":["https://openalex.org/I192878625"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001024389","display_name":"George Totkov","orcid":null},"institutions":[{"id":"https://openalex.org/I192878625","display_name":"Plovdiv University","ror":"https://ror.org/0545p3742","country_code":"BG","type":"education","lineage":["https://openalex.org/I192878625"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"George Totkov","raw_affiliation_strings":["University of Plovdiv \"Paisii Hilendarski\"","University of Plovdiv Paisii Hilendarski"],"affiliations":[{"raw_affiliation_string":"University of Plovdiv \"Paisii Hilendarski\"","institution_ids":["https://openalex.org/I192878625"]},{"raw_affiliation_string":"University of Plovdiv Paisii Hilendarski","institution_ids":["https://openalex.org/I192878625"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033975382","display_name":"Rositsa Doneva","orcid":"https://orcid.org/0000-0003-0296-1297"},"institutions":[{"id":"https://openalex.org/I192878625","display_name":"Plovdiv University","ror":"https://ror.org/0545p3742","country_code":"BG","type":"education","lineage":["https://openalex.org/I192878625"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"Rositsa Doneva","raw_affiliation_strings":["University of Plovdiv \"Paisii Hilendarski\"","University of Plovdiv Paisii Hilendarski"],"affiliations":[{"raw_affiliation_string":"University of Plovdiv \"Paisii Hilendarski\"","institution_ids":["https://openalex.org/I192878625"]},{"raw_affiliation_string":"University of Plovdiv Paisii Hilendarski","institution_ids":["https://openalex.org/I192878625"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5028842026"],"corresponding_institution_ids":["https://openalex.org/I192878625"],"apc_list":null,"apc_paid":null,"fwci":1.6101,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.8853225,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"498","last_page":"498"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12171","display_name":"Open Education and E-Learning","score":0.9891999959945679,"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"}},"topics":[{"id":"https://openalex.org/T12171","display_name":"Open Education and E-Learning","score":0.9891999959945679,"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"}},{"id":"https://openalex.org/T13523","display_name":"Mathematics, Computing, and Information Processing","score":0.9868000149726868,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9861999750137329,"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/metadata","display_name":"Metadata","score":0.7814045548439026},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7688394784927368},{"id":"https://openalex.org/keywords/learning-object","display_name":"Learning object","score":0.7499528527259827},{"id":"https://openalex.org/keywords/learning-management","display_name":"Learning Management","score":0.7399848103523254},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6524890661239624},{"id":"https://openalex.org/keywords/test","display_name":"Test (biology)","score":0.5792186260223389},{"id":"https://openalex.org/keywords/open-source","display_name":"Open source","score":0.5505285263061523},{"id":"https://openalex.org/keywords/adaptive-learning","display_name":"Adaptive learning","score":0.5063425302505493},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.500737190246582},{"id":"https://openalex.org/keywords/e-learning","display_name":"E learning","score":0.49423936009407043},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.48796719312667847},{"id":"https://openalex.org/keywords/adaptive-system","display_name":"Adaptive system","score":0.46596387028694153},{"id":"https://openalex.org/keywords/computerized-adaptive-testing","display_name":"Computerized adaptive testing","score":0.41288843750953674},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.3596571087837219},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.340943843126297},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.33599311113357544},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.18506348133087158},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.12082982063293457},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.11237549781799316}],"concepts":[{"id":"https://openalex.org/C93518851","wikidata":"https://www.wikidata.org/wiki/Q180160","display_name":"Metadata","level":2,"score":0.7814045548439026},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7688394784927368},{"id":"https://openalex.org/C2779542340","wikidata":"https://www.wikidata.org/wiki/Q1062461","display_name":"Learning object","level":2,"score":0.7499528527259827},{"id":"https://openalex.org/C2779114481","wikidata":"https://www.wikidata.org/wiki/Q6510117","display_name":"Learning Management","level":2,"score":0.7399848103523254},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6524890661239624},{"id":"https://openalex.org/C2777267654","wikidata":"https://www.wikidata.org/wiki/Q3519023","display_name":"Test (biology)","level":2,"score":0.5792186260223389},{"id":"https://openalex.org/C3018397939","wikidata":"https://www.wikidata.org/wiki/Q3644502","display_name":"Open source","level":3,"score":0.5505285263061523},{"id":"https://openalex.org/C125014702","wikidata":"https://www.wikidata.org/wiki/Q4680749","display_name":"Adaptive learning","level":2,"score":0.5063425302505493},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.500737190246582},{"id":"https://openalex.org/C2984567223","wikidata":"https://www.wikidata.org/wiki/Q1068473","display_name":"E learning","level":3,"score":0.49423936009407043},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.48796719312667847},{"id":"https://openalex.org/C52970973","wikidata":"https://www.wikidata.org/wiki/Q2497134","display_name":"Adaptive system","level":2,"score":0.46596387028694153},{"id":"https://openalex.org/C144352353","wikidata":"https://www.wikidata.org/wiki/Q2920411","display_name":"Computerized adaptive testing","level":3,"score":0.41288843750953674},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3596571087837219},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.340943843126297},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33599311113357544},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.18506348133087158},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.12082982063293457},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.11237549781799316},{"id":"https://openalex.org/C70410870","wikidata":"https://www.wikidata.org/wiki/Q199906","display_name":"Clinical psychology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C171606756","wikidata":"https://www.wikidata.org/wiki/Q506132","display_name":"Psychometrics","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2023607.2023691","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2023607.2023691","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th International Conference on Computer Systems and Technologies - CompSysTech '11","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8600000143051147,"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1490230666","https://openalex.org/W1649645444","https://openalex.org/W1849070648","https://openalex.org/W2010842694","https://openalex.org/W2042007661","https://openalex.org/W2099741985","https://openalex.org/W2111716925","https://openalex.org/W2117604951","https://openalex.org/W2128507243"],"related_works":["https://openalex.org/W2002434773","https://openalex.org/W2170357422","https://openalex.org/W2281520619","https://openalex.org/W1521817711","https://openalex.org/W2537318351","https://openalex.org/W1540598709","https://openalex.org/W2057714291","https://openalex.org/W2124151253","https://openalex.org/W2293872259","https://openalex.org/W2127464786"],"abstract_inverted_index":{"The":[0],"paper":[1],"proposes":[2],"an":[3,15],"approach":[4],"to":[5,36],"automated":[6],"learning":[7,17,66],"object":[8],"metadata":[9],"retrieval":[10],"in":[11],"the":[12,24,32,44,53,60,63],"context":[13],"of":[14,26,28,40,43,55,62],"adaptive":[16],"management":[18],"system.":[19],"It":[20],"is":[21],"based":[22],"on":[23,59],"idea":[25],"generation":[27],"test":[29,41],"items":[30],"using":[31],"accumulated":[33],"student":[34],"answers":[35],"a":[37,56],"special":[38],"kind":[39],"questions":[42],"so":[45],"called":[46],"Accumulative":[47],"Question":[48],"Type.":[49],"Further,":[50],"it":[51],"provides":[52],"outlines":[54],"possible":[57],"implementation":[58],"basis":[61],"open-source":[64],"computer":[65],"environment":[67],"Moodle.":[68]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}