Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coronavirus and sports leagues: obtaining a fair ranking when the season
  cannot resume   Many sports leagues are played in a tightly scheduled round-robin format,
leaving a limited time window to postpone matches. If the season cannot resume
due to an external shock such as the coronavirus pandemic in 2020, the ranking
of the teams becomes non-trivial: it is necessary to account for schedule
imbalances and possibly for the different number of matches played. First in
the literature, we identify a set of desired axioms for ranking in these
incomplete tournaments. It is verified that the generalised row sum, a
parametric family of scoring rules, satisfies all of them. In particular, the
well-established least squares method maximizes the influence of the strength
of opponents on the ranking. Our approach is applied for six major premier
European soccer competitions, where the rankings are found to be robust
concerning the weight of adjustment for the strength of the opponents. Some
methodologically simpler alternative policies are also discussed.

10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th