Title :
An improved unsupervised learning probabilistic model of word sense disambiguation
Author :
Xu Li ; Xiuyan Zhao ; Fenglong Fan ; Bai Liu
Author_Institution :
Inf. Sci. & Eng. Coll., Dalian Polytech. Univ., Dalian, China
fDate :
Oct. 30 2012-Nov. 2 2012
Abstract :
Unsupervised learning can address the general limitation of supervised learning that sense-tagged text is not available for most domains and is expensive to create. However, the existing unsupervised learning probabilistic models are computationally expensive and convergence slowly because of large numbers and random initialization of model parameters. This paper reduces the noise jamming and the dimensionality of the models by using proposed feature selection and initial parameter estimation. Experimental result shows the accuracy and efficiency of the proposed probabilistic model are obviously improved.
Keywords :
feature extraction; natural language processing; parameter estimation; probability; unsupervised learning; feature selection; improved unsupervised learning probabilistic model; initial parameter estimation; model dimensionality reduction; noise jamming reduction; random initialization; supervised learning; word sense disambiguation; Accuracy; Computational modeling; Context; Mutual information; Probabilistic logic; Training; Unsupervised learning;
Conference_Titel :
Information and Communication Technologies (WICT), 2012 World Congress on
Conference_Location :
Trivandrum
Print_ISBN :
978-1-4673-4806-5
DOI :
10.1109/WICT.2012.6409234