Table 1. Table of definitions.
| symbol | description |
|---|---|
| x(t) | vector of state variables at time t |
| y(t) | output vector at time t |
| q(·) | vector function defining the dynamical equation of the system |
| col (x1, …, xN) | vector formed by collating the (column) vectors x1, …, xN |
| n | number of nodes (state variables) in the network |
| r | number of directly observed nodes (state variables) |
| N | observation length |
| f | fraction of directly observed nodes (state variables) |
| A = [aij] | matrix with entries aij |
| Ik | identity matrix of size k × k |