Title :
Handling incomplete matrix data via continuous-valued infinite relational model
Author :
Suzuki, Tomohiko ; Nakamura, Takuma ; Ida, Yasutoshi ; Matsumoto, Takashi
Author_Institution :
Grad. Sch. of Adv. Sci. & Eng., Waseda Univ., Tokyo, Japan
Abstract :
A continuous-valued infinite relational model is proposed as a solution to the co-clustering problem which arises in matrix data or tensor data calculations. The model is a probabilistic model utilizing the framework of Bayesian Nonparametrics which can estimate the number of components in posterior distributions. The original Infinite Relational Model cannot handle continuous-valued or multi-dimensional data directly. Our proposed model overcomes the data expression restrictions by utilizing the proposed likelihood, which can handle many types of data. The posterior distribution is estimated via variational inference. Using real-world data, we show that the proposed model outperforms the original model in terms of AUC score and efficiency for a movie recommendation task. (111 words).
Keywords :
Bayes methods; inference mechanisms; matrix algebra; AUC score; Bayesian nonparametrics; coclustering problem; continuous-valued data; continuous-valued infinite relational model; incomplete matrix data; movie recommendation task; multidimensional data; posterior distribution; probabilistic model; tensor data calculation; variational inference; Accuracy; Bayesian methods; Data models; Educational institutions; Motion pictures; Predictive models; Stochastic processes; Bayesian methods; Dirichlet Process; Infinite Relational Model; Machine learning; Variational Bayes;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-0045-2
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2012.6288338