Search Results - subject:"Linearization"

Economic lot and delivery scheduling problem for multi-stage supply chains

Osman, Hany; Demirli, Kudret - In: International Journal of Production Economics 136 (2012) 2, pp. 275-286

hybrid algorithm. The algorithm combines linearization, outer approximation and Benders decomposition techniques. Results of …

Persistent link: https://www.econbiz.de/10010869183

Mixed-integer linear optimization for optimal lift-gas allocation with well-separator routing

Codas, Andrés; Camponogara, Eduardo - In: European Journal of Operational Research 217 (2012) 1, pp. 222-231

nonlinear curves, using binary variables to express the linearization and routing decisions. A new formulation (integrated …) combining the decisions on linearization and routing is developed by using a single binary variable. The structures of both …

Persistent link: https://www.econbiz.de/10010577575

Supply chain design considering economies of scale and transport frequencies

Baumgartner, Kerstin; Fuetterer, André; Thonemann, … - In: European Journal of Operational Research 218 (2012) 3, pp. 789-800

-and-bound and with the efficient solution heuristics based on iterative linearization techniques we develop. We show that the …

Persistent link: https://www.econbiz.de/10010577590

Linearized Nelson–Siegel and Svensson models for the estimation of spot interest rates

Gauthier, Geneviève; Simonato, Jean-Guy - In: European Journal of Operational Research 219 (2012) 2, pp. 442-451

Linearized versions of the Nelson–Siegel (1987) and Svensson (1994) models for the cross-sectional estimation of spot yield curves from samples of coupon bonds are developed and analyzed. It is shown how these models can be made linear in the level, slope and curvature parameters and how prior...

Persistent link: https://www.econbiz.de/10010577615

Stochastic traffic assignment, Lagrangian dual, and unconstrained convex optimization

Xie, Chi; Travis Waller, S. - In: Transportation Research Part B: Methodological 46 (2012) 8, pp. 1023-1042

In this paper, traffic assignment problems with stochastic travel cost perceptions are reformulated and investigated in a new unconstrained nonlinear programming formulation. The objective function of the unconstrained formulation consists of two terms, in which the first term specifies the...

Persistent link: https://www.econbiz.de/10010580907

Branch and cut algorithms for detecting critical nodes in undirected graphs

Summa, Marco Di; Grosso, Andrea; Locatelli, Marco - In: Computational Optimization and Applications 53 (2012) 3, pp. 649-680

In this paper we deal with the critical node problem, where a given number of nodes has to be removed from an undirected graph in order to maximize the disconnections between the node pairs of the graph. We propose an integer linear programming model with a non-polynomial number of constraints...

Persistent link: https://www.econbiz.de/10010998318

Obstacle‐responsive navigation scheme of a wheeled mobile robot based on look‐ahead control

Yu Lwin, Yu; Yamamoto, Yoshio - In: Industrial Robot: An International Journal 39 (2012) 3, pp. 282-293

Purpose – The purpose of this paper is to design a mobile robot controller which is able to pursue a given goal with obstacle‐avoiding capability in which the two tasks, i.e. aiming at the goal and avoiding obstacles, are fused together in a coherent framework of look‐ahead control method....

Persistent link: https://www.econbiz.de/10014832148

On statistical inference for inequality measures calculated from complex survey data

Clarke, Judith; Roy, Nilanjana - In: Empirical Economics 43 (2012) 2, pp. 499-524

statistics with variance–covariance matrices estimated from a linearization approximation method. Testing the equality of two or … linearization complex survey outcomes with those from an incorrect independently and identically distributed (iid) assumption and a … bootstrap that accounts for the survey design. For our samples, the results from the easy to implement linearization method and …

Persistent link: https://www.econbiz.de/10010593393

Reduced RLT representations for nonconvex polynomial programming problems

Sherali, Hanif; Dalkiran, Evrim; Liberti, Leo - In: Journal of Global Optimization 52 (2012) 3, pp. 447-469

Persistent link: https://www.econbiz.de/10010539285

Dynamic Lagrangian dual and reduced RLT constructs for solving 0–1 mixed-integer programs

Sherali, Hanif; Smith, J. - In: TOP: An Official Journal of the Spanish Society of … 20 (2012) 1, pp. 173-189

Persistent link: https://www.econbiz.de/10010557938