Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Variable Metric Stochastic Approximation Theory   We provide a variable metric stochastic approximation theory. In doing so, we
provide a convergence theory for a large class of online variable metric
methods including the recently introduced online versions of the BFGS algorithm
and its limited-memory LBFGS variant. We also discuss the implications of our
results for learning from expert advice.

28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph