Table 2 Data fusion taxonomy
Category | Taxonomy | ||
|---|---|---|---|
Low level | Middle level | High level | |
Processing stage [22] | Low | Intermediate | High |
Levels of abstraction [30] | Low | Medium | High |
Data granularity [32] | Raw data processing | Feature level | Decision level |
Operation domains [39] | Temporal | Spatial | Temporal and spatial |
Semantics [16] | Knowledge base construction | Pattern matching | Inference |
Source relationships [13] | Complementary | Redundant | Cooperative |
User requirements [39] | Local/single node | Region | Global/overall network |