Table 2 Interpretation of each factor obtained using non-negative matrix factorization (NMF)
From: Spatial analysis of outdoor indecent assault risk: a study using ambient population data
Factor | Interpretation |
|---|---|
1 | Suburban residential area |
2 | Place of work and shopping with office and shopping areas |
3 | Areas with many students in or near high schools and universities |
4 | Nightlife in the downtown area, shopping destinations for young women and older women |
5 | Residential area with a large number of young people |
6 | Residential area with a stable population of people in their 30s–50s |
7 | Places of work for men, such as factories |
8 | Daytime activity places for young women and older people, such as hospitals and welfare facilities |