A Framework for Personalized and Collaborative Clustering of Search Results David C Anastasiu (Texas State University-San Marcos) Byron J Gao (Texas State University-San Marcos) David Buttler (Lawrence Livermore National Laboratory) A Linear-Time Approximation of the Earth Mover's Distance Min-Hee Jang (Hanyang University) Sang-Wook Kim (Hanyang University) Christos Faloutsos (Carnegie Mellon Univ