Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear-memory and Decomposition-invariant Linearly Convergent
  Conditional Gradient Algorithm for Structured Polytopes   Recently, several works have shown that natural modifications of the
classical conditional gradient method (aka Frank-Wolfe algorithm) for
constrained convex optimization, provably converge with a linear rate when: i)
the feasible set is a polytope, and ii) the objective is smooth and
strongly-convex. However, all of these results suffer from two significant
shortcomings: large memory requirement due to the need to store an explicit
convex decomposition of the current iterate, and as a consequence, large
running-time overhead per iteration, and worst case convergence rate that
depends unfavorably on the dimension.
  In this work we present a new conditional gradient variant and a
corresponding analysis that improves on both of the above shortcomings. In
particular: both memory and computation overheads are only linear in the
dimension. Moreover, in case the optimal solution is sparse, the new
convergence rate replaces a factor which is at least linear in the dimension in
previous works, with a linear dependence on the number of non-zeros in the
optimal solution.
  At the heart of our method, and corresponding analysis, is a novel way to
compute decomposition-invariant away-steps. While our theoretical guarantees do
not apply to any polytope, they apply to several important structured polytopes
that capture central concepts such as paths in graphs, perfect matchings in
bipartite graphs, marginal distributions that arise in structured prediction
tasks, and more. Our theoretical findings are complemented by empirical
evidence which shows that our method delivers state-of-the-art performance.

21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio