Hot Topic Detection Based on VSM and Improved LDA Hybrid Model.
Qiu LiqingHaiyan LiuFan XinJia WeiPublished in: ICGEC (2018)
Keyphrases
- hybrid model
- artificial neural networks
- face recognition
- linear discriminant analysis
- hybrid models
- support vector regression
- back propagation neural network
- detection algorithm
- support vector machine svm
- discriminant analysis
- object detection
- topic models
- dimensionality reduction
- neural network
- feature extraction
- vector space model
- latent dirichlet allocation
- topic modeling
- discriminating power
- vector space
- text retrieval
- dimension reduction
- information extraction
- support vector machine
- pattern recognition
- genetic algorithm