MATH 519/619 Optimization (Spring quarter 2005): project 1

Project 1 consists of reviewing a research paper with some optimisation content. You can either choose one paper from the list below or suggest me a paper yourselves. The project is due May 5 at the end of the class.

Your review should be 1-2 typed pages long and contain the following:

• A summary of the paper, no more than 1/3 of a page long.
• A brief description of the optimisation material in the paper, i.e., a statement of the optimisation problem and why it is necessary, and a description of the method applied to solve it.
• Your evaluation of the optimisation material in the paper in relation to what we have seen in the course. Here are some suggestions for questions to ask (not all may apply): is the problem constrained/unconstrained/smooth/line-search/trust-region...? If it uses a line search, does it satisfy the Wolfe (or other) conditions? Does the paper use a standard optimisation algorithm, or are there ad-hoc modifications, and if so what are the consequences? Are there better choices of algorithm (take into account ease of implementation, scalability wrt problem size, etc.)? What is the stopping condition or convergence criterion? Does the problem have a unique optimum? How important is the optimisation part in the paper's main objectives?

You don't need to read the papers in their entirety, just to get an idea of what they deal with, and then focus on the optimisation part.

The list of papers, classified by type:

• Original references for an optimisation method:

  1. Donald W. Marquardt: "An algorithm for least-squares estimation of nonlinear parameters". J. SIAM 11(2):431-441 (Jun. 1963).
  2. R. Fletcher and M. J. D. Powell: "A rapidly convergent descent method for minimization". Computer J. 6(2):163-168 (Jul. 1963).
  3. R. Fletcher and C. M. Reeves: "Function minimization by conjugate gradients". Computer J. 7(2):149-154 (Jul. 1964).
  4. Donald Goldfarb: "A family of variable-metric methods derived by variational means". Math. Comp. 24(109):23-26 (Jan. 1970).
  5. D. F. Shanno: "Conditioning of quasi-Newton methods for function minimization". Math. Comp. 24(111):647-656 (Jul. 1970).
  6. R. Fletcher: "A new approach to variable metric algorithms". Computer J. 13(3):317-322 (Aug. 1970).

• Machine learning:

  1. John W. Sammon, Jr.: "A nonlinear mapping for data structure analysis". IEEE Trans. Computers C-18(5): 401-409 (May 1969).
  2. R. Battiti: "Accelerated back-propagation learning: two optimization methods". Complex Systems 3(4):331-342 (1989).
  3. Barak A. Pearlmutter: "Fast exact multiplication by the Hessian". Neural Computation 6(1):147-160 (Jan. 1992).
  4. R. Battiti: "1st-order and 2nd-order methods for learning -- between steepest descent and Newton method". Neural Computation 4(2):141-166 (Mar. 1992).
  5. Martin F. Møller: "A scaled conjugate gradient algorithm for fast supervised learning". Neural Networks 6(4):525-533 (1993).
  6. John Skilling: "Bayesian numerical analysis". In Physics and Probability: Essays in Honor of Edwin T. Jaynes (W. T. Grandy, Jr. and P. Milonni, eds.), Cambridge Univ. Press, 1993.
  7. Jeng-Neng Hwang et al.: "Regression modeling in back-propagation and projection pursuit learning". IEEE Trans. Neural Networks 5(3):342-353 (May 1994).
  8. S. Kollias and D. Anastassiou: "An adaptive least squares algorithm for the efficient training of artificial neural networks". IEEE Trans. Circuits and Systems 36(8):1092-1101 (Aug. 1994).
  9. P. Patrick van der Smagt: "Minimisation methods for training feedforward neural networks". Neural Networks 7(1):1-11 (1994).
  10. Lei Xu and Michel I. Jordan: "On convergence properties of the EM algorithm for Gaussian mixtures". Neural Computation 8(1):129-151 (Jan. 1996).
  11. Seán McLoone and George Irwin: "Fast parallel off-line training of multilayer perceptrons". IEEE Trans. Neural Networks 8(3):646-653 (May 1997).
  12. Seán McLoone et al.: "A hybrid linear/nonlinear training algorithm for feedforward neural networks". IEEE Trans. Neural Networks 9(4):669-684 (Jul. 1998).
  13. Aapo Hyvärinen: "Fast and robust fixed-point algorithms for independent component analysis". IEEE Trans. Neural Networks 10(3):626-634 (Oct. 1999).
  14. Miguel Á. Carreira-Perpiñán: "Mode-finding for mixtures of Gaussian distributions". IEEE Trans. Pattern Analysis and Machine Intelligence 22(11):1318-1323 (Nov. 2000).

• Speech processing:

  1. S. E. Levinson and C. E. Schmidt: "Adaptive computation of articulatory parameters from the speech signal". J. Acoust. Soc. Am. 74(4):1145-1154 (Oct. 1983).

• Software implementation:

  1. Interactive Educational Modules in Computational Science from UIUC: Optimization. These are Java applets implementing optimisation methods. You have to review the following methods: steepest descent, Newton, BFGS, conjugate gradient, Gauss-Newton, Levenberg-Marquardt.

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