Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reinforcement learning from comparisons: Three alternatives is enough,
  two is not   The paper deals with the problem of finding the best alternatives on the
basis of pairwise comparisons when these comparisons need not be transitive. In
this setting, we study a reinforcement urn model. We prove convergence to the
optimal solution when reinforcement of a winning alternative occurs each time
after considering three random alternatives. The simpler process, which
reinforces the winner of a random pair does not always converges: it may cycle.

25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn