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- Ricardo C. Silva, Akebo Yamakami
- IFSA/EUSFLAT Conf.
- 2009

Pareto-optimality conditions are crucial when dealing with classic multi-objective optimization problems because we need to find out a set of optimal solutions rather than only one optimal solution… (More)

- Ricardo C. Silva, José L. Verdegay, Akebo Yamakami
- IEEE International Fuzzy Systems Conference
- 2007

Quadratic programming problems are of up most importance in a variety of relevant practical fields, as e.g., portfolio selection. This work presents and develops an original and novel fuzzy sets… (More)

- Carlos Cruz Corona, Ricardo C. Silva, José L. Verdegay
- FO & DM
- 2011

Quadratic programming problems are applied in an increasing variety of practical fields. As ambiguity and vagueness are natural and ever-present in real-life situations requiring solutions, it makes… (More)

- Ricardo C. Silva, Akebo Yamakami
- FO & DM
- 2011

Pareto-optimality conditions are crucial when dealing with classic multi-objective optimization problems. Extensions of these conditions to the fuzzy domain have been discussed and addressed in… (More)

- Juliana Verga, Ricardo C. Silva, Akebo Yamakami, Wesley V. I. Shirabayashi
- Joint IFSA World Congress and NAFIPS Annual…
- 2013

In this work, an approach to solve multimodal transport network problems with uncertain costs in the edges is proposed. This kind of problem has been studied for several researchers who search… (More)

- Ricardo C. Silva, Akebo Yamakami
- Annual Meeting of the North American Fuzzy…
- 2011

Although quadratic programming can be defined as a specific class of non-linear programming, it can also be used to generalize linear programming. Therefore, one can find many applications in… (More)

- Ricardo C. Silva, Carlos Cruz Corona, Akebo Yamakami
- IFSA/EUSFLAT Conf.
- 2009

This work describes a novel fuzzy-sets-based method to solve a particular class of quadratic programming problems which have vagueness coefficients in the objective function. Quadratic programming… (More)

- Jussara Rodrigues Ciappina, Akebo Yamakami, Ricardo C. Silva
- Computers & OR
- 2012

We present, in this paper, a method for solving linear programming problems with fuzzy costs based on the classical method of decomposition's Dantzig-Wolfe. Methods using decomposition techniques… (More)

Based on the fuzzy set theory this work develops two adaptations of iterative methods that solve mathematical programming problems with uncertainties in the objective function and in the set of… (More)