Sparse Data-Based Urban Road Travel Speed Prediction Using Probabilistic Principal Component Analysis.
Liping HuangYongjian YangXuehua ZhaoChuang MaHepeng GaoPublished in: IEEE Access (2018)
Keyphrases
- sparse data
- high dimensional
- urban areas
- probabilistic principal component analysis
- public transport
- traffic safety
- transport network
- urban traffic
- multi category
- random projections
- data cube
- travel time
- transportation networks
- metadata
- traffic flow
- road network
- latent variables
- em algorithm
- image classification
- prior knowledge
- data analysis