A Topic-Based Unsupervised Learning Approach for Online Underground Market Exploration.
Shin-Ying HuangTao BanPublished in: TrustCom/BigDataSE (2019)
Keyphrases
- unsupervised learning
- online markets
- online learning
- decision making
- supervised learning
- topic models
- machine learning
- search costs
- financial data
- shopping behavior
- real time
- pricing strategies
- market share
- news articles
- expectation maximization
- text classification
- dimensionality reduction
- semi supervised
- object recognition
- training data
- neural network