Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some scale-free networks could be robust under the selective node
  attacks   It is a mainstream idea that scale-free network would be fragile under the
selective attacks. Internet is a typical scale-free network in the real world,
but it never collapses under the selective attacks of computer viruses and
hackers. This phenomenon is different from the deduction of the idea above
because this idea assumes the same cost to delete an arbitrary node. Hence this
paper discusses the behaviors of the scale-free network under the selective
node attack with different cost. Through the experiments on five complex
networks, we show that the scale-free network is possibly robust under the
selective node attacks; furthermore, the more compact the network is, and the
larger the average degree is, then the more robust the network is; With the
same average degrees, the more compact the network is, the more robust the
network is. This result would enrich the theory of the invulnerability of the
network, and can be used to build the robust social, technological and
biological networks, and also has the potential to find the target of drugs.

22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org