Giannis Tsakonas

digital library evaluation libraries greece frbr library data viaf lod domain ontology isaar isad metadata archives topic modeling text mining network analysis koha library open source integrated library system βιβλιοθήκες πάτρα συνεργασία ακαδημαϊκές greek library association ifla inspiration eebep conference literature altmetrics mendeley citations technology northumbria evaluation performance measurement and metrics s.o.r. jcdl2013 dileo open bibliographic data e-lis user-centered evaluation institutional repositories dspace nemertes information searching ir information behavior user studies information seeking cir owl ontology evaluation planning sparql