نتایج جستجو برای: 01 knapsack problems

تعداد نتایج: 648418  

2009
Deeparnab Chakrabarty Yunhong Zhou Rajan Lukose

Since no competitive online algorithms exist for general knapsack problems, we consider online variants of knapsack problems with two assumptions: (i) the weight of each item is very small compared to the knapsack capacity; (ii) the value-to-weight ratio of each item is lower and upper bounded by two positive constants L and U . We design a deterministic threshold-based algorithm for the online...

Journal: :journal of industrial engineering, international 2008
m.s sabbagh m roshanjooy

presented here is a generalization of the implicit enumeration algorithm that can be applied when the objec-tive function is being maximized and can be rewritten as the difference of two non-decreasing functions. also developed is a computational algorithm, named linear speedup, to use whatever explicit linear constraints are present to speedup the search for a solution. the method is easy to u...

Journal: :JCP 2013
Yan-Yan Tan Yong-Chang Jiao

The 0/1 knapsack problem is a well-known problem, which appears in many real domains with practical importance. The problem is NP-complete. The multiobjective 0/1 knapsack problem is a generalization of the 0/1 knapsack problem in which multiple knapsacks are considered. Many algorithms have been proposed in the past five decades for both single and multiobjective knapsack problems. A new versi...

Journal: :Computers & Operations Research 2022

After the seminal books by Martello and Toth (1990) Kellerer, Pferschy, Pisinger (2004), knapsack problems became a classical rich research area in combinatorial optimization. The purpose of this survey, structured two parts, is to cover developments appeared field after publication latter volume. Part I treats single their variants. present II covers multiple, multidimensional, quadratic probl...

E Jahangiri F Ghassemi-Tari

Nonlinear Knapsack Problems (NKP) are the alternative formulation for the multiple-choice knapsack problems. A powerful approach for solving NKP is dynamic programming which may obtain the global op-timal solution even in the case of discrete solution space for these problems. Despite the power of this solu-tion approach, it computationally performs very slowly when the solution space of the pr...

Journal: :journal of industrial engineering, international 2006
e jahangiri f ghassemi-tari

nonlinear knapsack problems (nkp) are the alternative formulation for the multiple-choice knapsack problems. a powerful approach for solving nkp is dynamic programming which may obtain the global op-timal solution even in the case of discrete solution space for these problems. despite the power of this solu-tion approach, it computationally performs very slowly when the solution space of the pr...

 Multi-choice knapsack problem is a branch of regular knapsack problem where the objects are classified in different classes and each class has one and only one representative in final solution. Although it is assumed that each object belongs to just one class, sometimes this assumption is not valid in real problems. In this case an object may belong to the several classes. In fuzzy multi-choic...

Journal: :Discrete Applied Mathematics 2011

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