Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: 1/f noise: a pedagogical review   This is a pedagogical review of the ubiquitous 1/f^\alpha noises. The
sections include the representation of 1/f^\alpha noise as a superposition of
many relaxation processes; a discussion of the infinitely large fluctuations in
the low frequency limit; 1/f^\alpha noise from diffusion processes; the
measured statistical properties of 1/f^\alpha noises; 1/f^\alpha noises in self
organized criticality; scaling laws in earthquake physics; 1/f noise in
deterministic dynamical systems; an example of noise in a biophysical system;
the numerical simulation of 1/f^\alpha noise; 1/f noise literature (including
online resources).

35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph