Greedy Strategies for Convex Optimization
Article
First Online:
Received:
Accepted:
- 106 Downloads
Abstract
We investigate two greedy strategies for finding an approximation to the minimum of a convex function E defined on a Hilbert space H. We prove convergence rates for these algorithms under suitable conditions on the objective function E. These conditions involve the behavior of the modulus of smoothness and the modulus of uniform convexity of E.
Keywords
Greedy algorithms Convex optimization Rates of convergenceMathematics Subject Classification
65K05 90C25 41A46References
- 1.Borwein, J., Guiro, A., Hajek, P., Vanderwerff, J.: Uniformly convex functions on Banach Spaces. Proc. Am. Math. Soc. 137, 1081–1091 (2009)MathSciNetCrossRefMATHGoogle Scholar
- 2.Boyd, S., Vandenberghe, L.: Convex Optimization. Cambridge University Press, Cambridge (2009)MATHGoogle Scholar
- 3.Candes, E., Tao, T.: Decoding by linear programming. IEEE Trans. Inf. Theory 51(12), 4203–4215 (2005)MathSciNetCrossRefMATHGoogle Scholar
- 4.DeVore, R., Temlyakov, V.: Some remarks on greedy algorithms. Adv. Comput. Math. 5, 173–187 (1996)MathSciNetCrossRefMATHGoogle Scholar
- 5.DeVore, R., Temlyakov, V.: Convex optimization on Banach spaces. Found. Comput. Math (to appear)Google Scholar
- 6.Donoho, D.: Compressed sensing. IEEE Trans. Inf. Theory 52(4), 1289–1306 (2006)MathSciNetCrossRefMATHGoogle Scholar
- 7.Mallat, S., Zhang, Z.: Matching pursuits with time-frequency dictionaries. IEEE Trans. Signal Process. 41(12), 3397–3415 (1993)CrossRefMATHGoogle Scholar
- 8.Juditsky, A., Nesterov, Y.: Deterministic and stochastic primal-dual subgradient algorithms for uniformly convex minimization. Stoch. Syst. 4, 1–37 (2014)MathSciNetCrossRefMATHGoogle Scholar
- 9.Shalev-Shwartz, S., Srebro, N., Zhang, T.: Trading accuracy for sparsity in optimization problems with sparsity constraints. SIAM J. Optim. 20, 2807–2832 (2010)MathSciNetCrossRefMATHGoogle Scholar
- 10.Temlyakov, V.: Greedy expansions in convex optimization. Proc. Steklov Inst. Math. 284(1), 244–262 (2014)MathSciNetCrossRefMATHGoogle Scholar
- 11.Temlyakov, V.: Greedy approximation in convex optimization. Constr. Approx. 41(2), 269–296 (2015)MathSciNetCrossRefMATHGoogle Scholar
- 12.Temlyakov, V.: Chebyshev Greedy Algorithm in Convex Optimization. arXiv:1312.1244v1
- 13.Temlyakov, V.: Greedy Approximation, Cambridge Monographs on Applied and Computational Mathematics. Cambridge University Press, Cambridge (2011)CrossRefGoogle Scholar
- 14.Tewari, A., Ravikumar, P., Dhillon, I.: Greedy algorithms for structurally constrained high dimensional problems. Adv. Neural Inform. Process. Syst. (NIPS) 24, 882–890 (2011)Google Scholar
- 15.Zalinescu, C.: Convex Analysis in General Vector Spaces. World Scientific Publishing Co., Inc., River Edge (2002)CrossRefMATHGoogle Scholar
- 16.Zhang, T.: Sequential greedy approximation for certain convex optimization problems. IEEE Trans. Inform. Theory 49(3), 682–691 (2003)MathSciNetCrossRefMATHGoogle Scholar
- 17.Zhang, T.: Sparse recovery with orthogonal matching pursuit under RIP. IEEE Trans. Inform. Theory 57, 5215–6221 (2011)MathSciNetGoogle Scholar
Copyright information
© Springer-Verlag Italia 2016