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02-1 Masakazu Kojima, Mituhiro Fukuda and Masayuki Shida, ``Dual and Lagrangian Dual Predictor-Corrector Interior-Point Methods for Semidefinite Programs,'' SIAM Conference on Optimization, May 20-22, 2002, Westin Harbour Castle Hotel, Toronto, Canada. Invited talk. OHP.ps , OHP.pdf

01-3 Masakazu Kojima, Mituhiro Fukuda and Masayuki Shida, ``Lagrangian dual interior-point methods for semidefinite programs, '' New Trends in Optimization and Computational Algorithms, December 9-13, 2001, Kyoto, Japan. Invited talk. OHP.ps , OHP.pdf

01-2 Masakazu Kojima, Yang Dai, Sunyoung Kim and Akiko Takeda, ``A polyhedral homotopy continuation method for computing all solutions of a polynomial system of equations in complex vatiables,'' Interaternational Conference on Recent Advances in Computational Mathematics, October 10-13, 2001, Matsuyama, Ehime, Japan. Invited talk. OHP.ps , OHP.pdf

00-5 Masakazu Kojima, Akiko Takeda and Katsuki Fujisawa, ``A combinatorial Problem arising from polyhedral homotopies for polynomial systems, '' First Sino-Japan Optimization Meeting, October 26-28, 2000, Hong Kong. Invited talk.

00-3 Masakazu Kojima, Mituhiro Fukuda, Kazuo Murota and Kazuhide Nakata, ``Interior-point methods for semidefinite programs using matrix completion,'' European Conference on Operations Research, July 16-19, 2000, Budapest, Hungary.

00-2 Masakazu Kojima, ``Successive convex relaxation methods for nonconvex optimization problems,'' 2nd Workshop on Interior Point Method, July 14-15, 2000, Budapest, Hungary. Invited talk.

99-7 Masakazu Kojima, ``Global oprimization of general nonlinear programs via successive convex relaxation,'' INFORMS FALL'99, November 7-10, 1999, Philadelphia.

99-6 Masakazu Kojima, ``Global oprimization via successive convex relaxation,'' Work Shop on Polyhedral and Semidefinite Programming Methods, November 1-6, 1999, The Fields Institute of Mathematical Sciences, Toronto, Canada. Invited Talk.

99-5 Masakazu Kojima, Akiko Takeda and Levent Tuncel, ``Global optimization, successive convex relaxation methods and their computational complexity,'' Foundations of Computational Mathematics 1999, July 18-28, 1999, The University of Oxford, England. Invited talk.

99-4 Masakazu Kojima and Akiko Takeda, ``Successive convex relaxation approach to bilevel quadratic optimization problems,'' The Intrnational Conference on Complementarity 99, June 9-12, 1999, Madison, Wisconsin. Invited talk.

99-3 Masakazu Kojima and Levent Tuncel, ``Discretization and localization in successive convex relaxation methods for nonconvex quadratic optimization problems, '' Sixth SIAM Conference on Optimization, May 12-15, 1999, Atlanta, Georgia.

99-2 Masakazu Kojima and Levent Tuncel, ``Discretization and localization in successive convex relaxation methods for nonconvex quadratic optimization problems,'' DIMACS Workshop on Semidefinite Programming and its Applications to Large Scale Discrete Optimization, January 7 - 9, 1999, Princeton University, Princeton. Invited talk.

98-4 Masakazu Kojima and Levent Tuncel, ``Cones of matrices and successive convex relaxations of nonconvex sets,'' International Conference on Nonlinear Programming and Variational Inequalities, December 15-18, 1998, Hong Kong. Invited talk.

98-3 Masakazu Kojima and Levent Tuncel, ``Cones of matrices and successive convex relaxations of nonconvex sets,'' Workshop Semidefinite Programming: Applications and Algorithms, November 15-17, 1998, ZIB-Berlin, Berlin. Invited talk.

98-1 Masakazu Kojima, Masayuki Shida and Susumu Shindoh, ``Search directions in semidefinite programming and monotone semidefinite linear complementarity problem: generalization and inexct computation,'' CORS/INFORMS Montral, April 26-29, 1998, Motreal, Canad.

97-4 Masakazu Kojima, ``Numerical experiments of the SDPA,'' Fifth International Conference on Parametric Optimization and Related Topics, October 6-10, 1997, OVTA, Makuhari, Chiba.

97-3 Masakazu Kojima, Katsuki Fujisawa and Kazuhide Nakata, ``Exploiting sparcity in primal-dual interior-point methods for semidefinite programming,'' International Symposium on Mathematical Programming 1997, August 1997, Lausanne EPFL. Invited prenary talk.

97-2 Masakzu Kojima, Masayuki Shida and Susumu Shindoh, ``Search directions in semidefinite programming and monotone semidefinite linear complementarity problem: generalization and inexct computation,'' The International Workshop on Hight Perfomance Optimiztion Tehniques, August 1997, Rotterdam. Invited talk.

96-2 Masakazu Kojima, Masayuki Shida and Susumu Shindoh, ``Two families of primal-dual interior-point methods for semidefinite programming,'' Hayama Workshop on Optimization, August 1996. Invited talk.

96-1 Masakazu Kojima, Masayuki Shida and Susumu Shindoh, ``Global and local convergence of prodeictor-corrector infeasible-interior-point algorithms for semidefinite programs,'' Fifth SIAM Conference on Optimization, May 20-22, 1996, Victoria, British Columbia, Canada. Invited talk.