Parameter Estimation of Conditional Random Fields Model By Improved Particle Swarm Optimizer.
Zengfa DouLin GaoPublished in: J. Comput. (2011)
Keyphrases
- parameter estimation
- random fields
- markov random field
- conditional random fields
- probabilistic model
- em algorithm
- maximum likelihood
- parameter estimation algorithm
- model fitting
- parameter learning
- maximum likelihood estimation
- particle swarm optimizer
- sequence labeling
- approximate inference
- semi markov
- model selection
- least squares
- non stationary
- prediction accuracy
- experimental data
- closed form
- expectation maximization
- parameter estimates
- energy function
- crf model
- regression trees
- structure learning
- machine learning
- higher order
- input image
- probability distribution
- active learning
- similarity measure