Contextual topic discovery using unsupervised keyphrase extraction and hierarchical semantic graph model.
Hung DuSrikanth ThudumuAntonio GiardinaRajesh VasaKon MouzakisLi JiangJohn ChisholmSanat BistaPublished in: J. Big Data (2023)
Keyphrases
- graph model
- topic discovery
- keyphrase extraction
- keyphrases
- topic models
- latent dirichlet allocation
- text classification
- domain specific
- bipartite graph
- unsupervised learning
- contextual information
- clustering method
- supervised learning
- graph structure
- similarity measure
- weighted graph
- image classification
- semantic information
- language model
- knowledge discovery
- keywords
- semantic similarity
- semi supervised
- natural language