User Modeling and Personalization in the Microblogging Sphere Qi Gao . User Modeling and Personalization in the Microblogging Sphere Proefschrift ter verkrijging van de graad van doctor aan de Technische Universiteit Delft, op gezag van de Rector Magnificus prof.ir. K.C.A.M. Luyben, voorzitter van het College voor Promoties, in het openbaar te verdedigen op maandag 28 oktober 2013 om 15:00 uur door Qi GAO Bachelor of Engineering in Automation, Tongji University, geboren te Jiashan, Zhejiang, China. Dit proefschrift is goedgekeurd door de promotoren: Prof.dr.ir. G.J.P.M. Houben Samenstelling promotiecommissie: Rector Magnificus voorzitter Prof.dr.ir. G.J.P.M. Houben Technische Universiteit Delft, promotor Prof.dr. P. Brusilovsky University of Pittsburgh Prof.dr. P.M.E. De Bra Technische Universiteit Eindhoven Prof.dr. V.G. Dimitrova University of Leeds Prof.dr. A. Hanjalic Technische Universiteit Delft Dr. F. Abel XING AG Prof.dr.ir. D.H.J. Epema Technische Universiteit Delft (reservelid) SIKS Dissertation Series No. 2013-33 The research reported in this thesis has been carried out under the auspices of SIKS, the Dutch Research School for Information and Knowledge Systems. Published and distributed by: Qi Gao E-mail:
[email protected] ISBN: 978-94-6186-227-3 Keywords: user modeling, personalization, recommender systems, semantic web, social web, microblog, twitter, sina weibo Copyright c 2013 by Qi Gao All rights reserved. No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, in- cluding photocopying, recording or by any information storage and retrieval system, without written permission of the author.