Mining, modeling, and recommending 'things' in social media. 4th international workshops, MUSE 2013

Prague, Czech Republic, September 23, 2013, and MSM 2013, Paris, France, May 1, 2013; Revised selected papers; MUSE 2013 was held in conjunction with the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML-PKDD 2013) and the MSM 2013 was held in conjunction with ACM Hypertext