An Adaptive LDA Optimal Topic Number Selection Method in News Topic Identification.
Mingming ZhengKaizhong JiangRanhui XuLulu QiPublished in: IEEE Access (2023)
Keyphrases
- latent dirichlet allocation
- similarity measure
- dynamic programming
- high accuracy
- topic models
- significant improvement
- detection method
- computational complexity
- closed form
- preprocessing
- topic modeling
- prior knowledge
- social media
- information retrieval
- generative model
- dimension reduction
- objective function
- news stories
- adaptive threshold