Unsupervised Word Alignment Using Frequency Constraint in Posterior Regularized EM.
Hidetaka KamigaitoTaro WatanabeHiroya TakamuraManabu OkumuraEiichiro SumitaPublished in: Inf. Media Technol. (2017)
Keyphrases
- word alignment
- semi supervised
- unsupervised learning
- grammar induction
- machine translation
- probabilistic model
- statistical machine translation
- bayesian framework
- expectation maximization
- generative model
- markov networks
- pairwise constraints
- cross lingual
- posterior probability
- supervised learning
- document classification
- k means
- semi supervised learning
- probability distribution
- labeled data
- posterior distribution
- active learning
- image segmentation
- information retrieval
- hidden variables
- weakly supervised
- markov random field
- discriminative learning