Twitter-based Urban Area Characterization by Non-negative Matrix Factorization.
Shoko WakamiyaRyong LeeYukiko KawaiKazutoshi SumiyaPublished in: BigDAS (2015)
Keyphrases
- negative matrix factorization
- urban areas
- matrix factorization
- aerial images
- remote sensing images
- document clustering
- geographic information systems
- principal component analysis
- travel time
- sparse representation
- satellite images
- spectral clustering
- image analysis
- change detection
- remote sensing
- high dimensional data
- co occurrence
- data points