{"id":"https://openalex.org/W2091740642","doi":"https://doi.org/10.3217/jucs-018-01-0106","title":"Clustering Projects for eLearning Interoperability","display_name":"Clustering Projects for eLearning Interoperability","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W2091740642","doi":"https://doi.org/10.3217/jucs-018-01-0106","mag":"2091740642"},"language":"en","primary_location":{"id":"doi:10.3217/jucs-018-01-0106","is_oa":true,"landing_page_url":"https://doi.org/10.3217/jucs-018-01-0106","pdf_url":"https://lib.jucs.org/article/22856/download/pdf/","source":{"id":"https://openalex.org/S58563349","display_name":"JUCS - Journal of Universal Computer Science","issn_l":"0948-695X","issn":["0948-695X","0948-6968"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310317875","host_organization_name":"Verlag der Technischen Universit\u00e4t Graz","host_organization_lineage":["https://openalex.org/P4310317875"],"host_organization_lineage_names":["Verlag der Technischen Universit\u00e4t Graz"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"JUCS - Journal of Universal Computer Science","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://lib.jucs.org/article/22856/download/pdf/","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108092034","display_name":"Severance","orcid":null},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Severance","raw_affiliation_strings":["(University of Michigan, Ann Arbor, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(University of Michigan, Ann Arbor, USA","institution_ids":["https://openalex.org/I27837315"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099941427","display_name":"Mayol","orcid":null},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Mayol","raw_affiliation_strings":["(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050368394","display_name":"Francisco Jos\u00e9 Garc\u00eda\u2010Pe\u00f1alvo","orcid":"https://orcid.org/0000-0001-9987-5584"},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Garc\u00eda-Pe\u00f1alvo","raw_affiliation_strings":["(University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099941429","display_name":"Merriman","orcid":null},"institutions":[{"id":"https://openalex.org/I63966007","display_name":"Massachusetts Institute of Technology","ror":"https://ror.org/042nb2s44","country_code":"US","type":"education","lineage":["https://openalex.org/I63966007"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Merriman","raw_affiliation_strings":["(Massachusetts Institute of Technology, Cambridge, Massachusetts, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Massachusetts Institute of Technology, Cambridge, Massachusetts, USA","institution_ids":["https://openalex.org/I63966007"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099941430","display_name":"Piguillem","orcid":null},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Piguillem","raw_affiliation_strings":["(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027613326","display_name":"Marc Alier","orcid":"https://orcid.org/0000-0003-3922-1516"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Alier","raw_affiliation_strings":["(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113651060","display_name":"Casa\u00f1","orcid":null},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Casa\u00f1","raw_affiliation_strings":["(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Universitat Polit\u00e8cnica de Catalunya -Barcelona Tech, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5115589278","display_name":"Conde","orcid":null},"institutions":[{"id":"https://openalex.org/I184999862","display_name":"Universidad de Salamanca","ror":"https://ror.org/02f40zc51","country_code":"ES","type":"education","lineage":["https://openalex.org/I184999862"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Conde","raw_affiliation_strings":["(University of Salamanca, Salamanca, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(University of Salamanca, Salamanca, Spain","institution_ids":["https://openalex.org/I184999862"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5099941433","display_name":"Tebben","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tebben","raw_affiliation_strings":["(Free Knowledge Institute, Amsterdam, The Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"(Free Knowledge Institute, Amsterdam, The Netherlands","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":9,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.4095,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.946981,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"18","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10679","display_name":"Service-Oriented Architecture and Web Services","score":0.9918000102043152,"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/T10679","display_name":"Service-Oriented Architecture and Web Services","score":0.9918000102043152,"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/T14246","display_name":"E-Learning and Knowledge Management","score":0.9915000200271606,"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/T12863","display_name":"Web and Library Services","score":0.9832000136375427,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/interoperability","display_name":"Interoperability","score":0.9624913930892944},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.825400173664093},{"id":"https://openalex.org/keywords/implementation","display_name":"Implementation","score":0.7583140134811401},{"id":"https://openalex.org/keywords/open-source","display_name":"Open source","score":0.519136369228363},{"id":"https://openalex.org/keywords/cross-domain-interoperability","display_name":"Cross-domain interoperability","score":0.48629888892173767},{"id":"https://openalex.org/keywords/semantic-interoperability","display_name":"Semantic interoperability","score":0.4830523133277893},{"id":"https://openalex.org/keywords/software-engineering","display_name":"Software engineering","score":0.45778927206993103},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.44635236263275146},{"id":"https://openalex.org/keywords/engineering-management","display_name":"Engineering management","score":0.43746909499168396},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.4197095036506653},{"id":"https://openalex.org/keywords/open-standard","display_name":"Open standard","score":0.41479259729385376},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.37583643198013306},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3672541379928589},{"id":"https://openalex.org/keywords/knowledge-management","display_name":"Knowledge management","score":0.3393459916114807}],"concepts":[{"id":"https://openalex.org/C20136886","wikidata":"https://www.wikidata.org/wiki/Q749647","display_name":"Interoperability","level":2,"score":0.9624913930892944},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.825400173664093},{"id":"https://openalex.org/C26713055","wikidata":"https://www.wikidata.org/wiki/Q245962","display_name":"Implementation","level":2,"score":0.7583140134811401},{"id":"https://openalex.org/C3018397939","wikidata":"https://www.wikidata.org/wiki/Q3644502","display_name":"Open source","level":3,"score":0.519136369228363},{"id":"https://openalex.org/C26805982","wikidata":"https://www.wikidata.org/wiki/Q17008183","display_name":"Cross-domain interoperability","level":4,"score":0.48629888892173767},{"id":"https://openalex.org/C192800085","wikidata":"https://www.wikidata.org/wiki/Q5258530","display_name":"Semantic interoperability","level":3,"score":0.4830523133277893},{"id":"https://openalex.org/C115903868","wikidata":"https://www.wikidata.org/wiki/Q80993","display_name":"Software engineering","level":1,"score":0.45778927206993103},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.44635236263275146},{"id":"https://openalex.org/C110354214","wikidata":"https://www.wikidata.org/wiki/Q6314146","display_name":"Engineering management","level":1,"score":0.43746909499168396},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.4197095036506653},{"id":"https://openalex.org/C67936045","wikidata":"https://www.wikidata.org/wiki/Q681263","display_name":"Open standard","level":3,"score":0.41479259729385376},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.37583643198013306},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3672541379928589},{"id":"https://openalex.org/C56739046","wikidata":"https://www.wikidata.org/wiki/Q192060","display_name":"Knowledge management","level":1,"score":0.3393459916114807},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3217/jucs-018-01-0106","is_oa":true,"landing_page_url":"https://doi.org/10.3217/jucs-018-01-0106","pdf_url":"https://lib.jucs.org/article/22856/download/pdf/","source":{"id":"https://openalex.org/S58563349","display_name":"JUCS - Journal of Universal Computer Science","issn_l":"0948-695X","issn":["0948-695X","0948-6968"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310317875","host_organization_name":"Verlag der Technischen Universit\u00e4t Graz","host_organization_lineage":["https://openalex.org/P4310317875"],"host_organization_lineage_names":["Verlag der Technischen Universit\u00e4t Graz"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"JUCS - Journal of Universal Computer Science","raw_type":"journal-article"},{"id":"pmh:oai:upcommons.upc.edu:2117/358654","is_oa":true,"landing_page_url":"http://hdl.handle.net/2117/358654","pdf_url":null,"source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":"public-domain","license_id":"https://openalex.org/licenses/public-domain","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},{"id":"pmh:oai:zenodo.org:5504671","is_oa":true,"landing_page_url":"https://zenodo.org/record/5504671","pdf_url":null,"source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"JUCS - Journal of Universal Computer Science 18((1)) 106-122","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.3217/jucs-018-01-0106","is_oa":true,"landing_page_url":"https://doi.org/10.3217/jucs-018-01-0106","pdf_url":"https://lib.jucs.org/article/22856/download/pdf/","source":{"id":"https://openalex.org/S58563349","display_name":"JUCS - Journal of Universal Computer Science","issn_l":"0948-695X","issn":["0948-695X","0948-6968"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310317875","host_organization_name":"Verlag der Technischen Universit\u00e4t Graz","host_organization_lineage":["https://openalex.org/P4310317875"],"host_organization_lineage_names":["Verlag der Technischen Universit\u00e4t Graz"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"JUCS - Journal of Universal Computer Science","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6399999856948853}],"awards":[],"funders":[{"id":"https://openalex.org/F4320322930","display_name":"Ministerio de Ciencia e Innovaci\u00f3n","ror":"https://ror.org/034900433"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2091740642.pdf","grobid_xml":"https://content.openalex.org/works/W2091740642.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W17354724","https://openalex.org/W125914842","https://openalex.org/W129665885","https://openalex.org/W600209381","https://openalex.org/W1485488899","https://openalex.org/W1886337131","https://openalex.org/W2025834353","https://openalex.org/W2074593950","https://openalex.org/W2097565277","https://openalex.org/W2099012446","https://openalex.org/W2119913106","https://openalex.org/W2135341446","https://openalex.org/W2146687142","https://openalex.org/W2181530758","https://openalex.org/W2184078534","https://openalex.org/W2233870619","https://openalex.org/W2611987247","https://openalex.org/W3086693070","https://openalex.org/W3146248460"],"related_works":["https://openalex.org/W2109385585","https://openalex.org/W3209454962","https://openalex.org/W2913525168","https://openalex.org/W939442210","https://openalex.org/W2621382554","https://openalex.org/W3179006481","https://openalex.org/W2885367039","https://openalex.org/W2529808481","https://openalex.org/W3036438062","https://openalex.org/W2531681040"],"abstract_inverted_index":{"Since":[0],"the":[1,4,38,65,72],"beginning":[2],"of":[3,37,41],"discipline,":[5],"eLearning":[6],"has":[7],"been":[8],"about":[9],"innovation.":[10],"New":[11],"software,":[12],"systems,":[13,29],"contents":[14,30],"and":[15,20,23,31,35,52,81,88,104],"tools":[16,32],"are":[17,50],"being":[18],"created":[19],"experimented":[21],"with":[22,61,84],"in":[24],"constant":[25],"evolution.":[26],"But":[27],"when":[28],"become":[33],"successful":[34],"part":[36],"regular":[39],"infrastructure":[40],"educational":[42],"institutions,":[43],"interoperability":[44],"becomes":[45],"an":[46],"issue.":[47],"Systems":[48],"that":[49],"consolidated":[51],"regularly":[53],"used":[54],"need":[55,68],"to":[56,59,69,93,97],"be":[57],"able":[58],"interoperate":[60],"new":[62,66],"ones.":[63],"And":[64],"tendencies":[67],"fit":[70],"within":[71],"current":[73],"infrastructure.":[74],"This":[75],"paper":[76],"states":[77],"how":[78],"several":[79],"research":[80],"development":[82],"projects":[83],"heterogeneous":[85],"funding":[86],"sources":[87],"locations":[89],"worldwide,":[90],"gathered":[91],"together":[92],"find":[94],"a":[95],"solution":[96],"this":[98],"common":[99],"problem,":[100],"providing":[101],"open":[102],"specifications":[103],"standards,":[105],"plus":[106],"Free/Libre,":[107],"Open":[108],"Source":[109],"reference":[110],"implementations.":[111]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2016-06-24T00:00:00"}