Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Robustness of journal rankings by network flows with different amounts
  of memory   As the number of scientific journals has multiplied, journal rankings have
become increasingly important for scientific decisions. From submissions and
subscriptions to grants and hirings, researchers, policy makers, and funding
agencies make important decisions with influence from journal rankings such as
the ISI journal impact factor. Typically, the rankings are derived from the
citation network between a selection of journals and unavoidably depend on this
selection. However, little is known about how robust rankings are to the
selection of included journals. Here we compare the robustness of three journal
rankings based on network flows induced on citation networks. They model
pathways of researchers navigating scholarly literature, stepping between
journals and remembering their previous steps to different degree: zero-step
memory as impact factor, one-step memory as Eigenfactor, and two-step memory,
corresponding to zero-, first-, and second-order Markov models of citation flow
between journals. We conclude that higher-order Markov models perform better
and are more robust to the selection of journals. Whereas our analysis
indicates that higher-order models perform better, the performance gain for the
second-order Markov model comes at the cost of requiring more citation data
over a longer time period.

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The categories of this paper are: atom-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio