Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Prediction with Advice of Unknown Number of Experts   In the framework of prediction with expert advice, we consider a recently
introduced kind of regret bounds: the bounds that depend on the effective
instead of nominal number of experts. In contrast to the Normal- Hedge bound,
which mainly depends on the effective number of experts but also weakly depends
on the nominal one, we obtain a bound that does not contain the nominal number
of experts at all. We use the defensive forecasting method and introduce an
application of defensive forecasting to multivalued supermartingales.

19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat