Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The ISRS GN Model, an Efficient Tool in Modeling Ultra-Wideband
  Transmission in Point-to-Point and Network Scenarios   An analytical model to estimate nonlinear performance in ultra-wideband
optical transmission networks is presented. The model accurately accounts for
inter-channel stimulated Raman scattering, variably loaded fibre spans and is
validated through C+L band simulations for uniform and probabilistically shaped
64-QAM.

22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph