Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gray Box Identification of State-Space Models Using Difference of Convex
  Programming   Gray-box identification is prevalent in modeling physical and networked
systems. However, due to the non-convex nature of the gray-box identification
problem, good initial parameter estimates are crucial for a successful
application. In this paper, a new identification method is proposed by
exploiting the low-rank and structured Hankel matrix of impulse response. This
identification problem is recasted into a difference-of-convex programming
problem, which is then solved by the sequential convex programming approach
with the associated initialization obtained by nuclear-norm optimization. The
presented method aims to achieve the maximum impulse-response fitting while not
requiring additional (non-convex) conditions to secure non-singularity of the
similarity transformation relating the given state-space matrices to the
gray-box parameterized ones. This overcomes a persistent shortcoming in a
number of recent contributions on this topic, and the new method can be applied
for the structured state-space realization even if the involved system
parameters are unidentifiable. The method can be used both for directly
estimating the gray-box parameters and for providing initial parameter
estimates for further iterative search in a conventional gray-box
identification setup.

20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int