Patient grouping optimization using a hybrid self-organizing map and Gaussian mixture model for length of stay-based clustering system.
Florin GorunescuSmaranda BelciugElia El-DarziMarina GorunescuPublished in: IEEE Conf. of Intelligent Systems (2010)
Keyphrases
- self organizing maps
- gaussian mixture model
- mixture model
- unsupervised learning
- k means
- neural network
- expectation maximization
- em algorithm
- feature vectors
- speaker clustering
- maximum likelihood
- learning vector quantization
- input data
- neural gas
- gaussian mixture
- feature space
- probabilistic neural network
- som neural network
- density estimation
- probability density function
- growing self organizing map
- bayesian information criterion
- probabilistic model
- gaussian distribution
- data sets
- cluster analysis
- kernel function
- prior knowledge
- pattern recognition