Results 81 to 90 of about 5,533,689 (197)

Two-Stage Submodular Maximization Under Knapsack Problem

open access: yesTsinghua Science and Technology
Two-stage submodular maximization problem under cardinality constraint has been widely studied in machine learning and combinatorial optimization. In this paper, we consider knapsack constraint.
Zhicheng Liu   +3 more
doaj   +1 more source

The one‐dimensional cutting stock problem with sequence‐dependent setups

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract The cutting stock problem (CSP) is a classic operations research problem with several applications in real‐world scenarios. It involves cutting large objects into smaller items to satisfy customer demands, minimizing the number of cut objects.
Eduardo M. Silva   +3 more
wiley   +1 more source

Two‐dimensional guillotine cutting problem for large objects with non‐rectangular shapes

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract In this paper, we address the two‐dimensional single large object placement problem with guillotine cutting constraints, focusing on non‐rectangular shapes. We consider objects with circular or convex polygonal geometries and study a variant that includes defective regions from which no items can be extracted. Rectangular items are cut using a
Carise E. Schmidt   +3 more
wiley   +1 more source

Minimizing cutting costs in 1D rod cutting

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We study a one‐dimensional rod‐cutting problem arising from an industrial setting where cutting itself carries cost. Each order specifies a length interval, and the task is to assign orders to warehouse rods so that all orders are satisfied while the number of cuts is minimized.
Bowen Li, Attila Sali
wiley   +1 more source

An attainbility of optimal solutions of the Lexicographical Knapsack Optimization Problem with alternative criteria

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017
The method of finding of attainable optimum solutions of lexicographic knapsack problem with alternative criteria by reducing it to the problem of onecriterion optimization with a scalar objective function is considered.
A. Ю. Брила, В. I. Гренджа
doaj   +1 more source

Protecting While Promoting? The Limits of Agroindustry‐Driven Pesticide Safety in Ugandan Smallholder Agriculture

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Pesticide use is expanding rapidly across sub‐Saharan Africa, while regulatory oversight and public protection structures remain weak, leaving smallholder farmers exposed to mounting health and environmental risks. In response, agrochemical industry actors have launched ‘safe use’ initiatives that emphasize training and personal protective ...
Elina Andersson   +2 more
wiley   +1 more source

An index for dynamic product promotion and the knapsack problem for perishable items [PDF]

open access: yes
This paper introduces the knapsack problem for perishable items (KPPI), which concerns the optimal dynamic allocation of a limited promotion space to a collection of perishable items. Such a problem is motivated by applications in a variety of industries,
Peter Jacko, Jose Nino-MOra
core  

THE APPLICATION OF NON-INJECTIVE VECTORS IN KNAPSACK CRYPTOSYSTEMS

open access: yesБезопасность информационных технологий
The paper explores the cryptographic properties of non-injective linear forms and their application in knapsack cryptosystems. The primary goal of the work is to analyze the potential for using non-injective knapsacks as private keys to ensure the ...
Maria Sabina A. Volkov   +1 more
doaj   +1 more source

Knowledge Work as a Condition of Accumulation in the Pesticide Industry: Syngenta's Defence of Paraquat

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT What do pesticide companies do to keep their products on the market despite strong societal and scientific critiques of their environmental and health risks? This paper examines the herbicide paraquat, one of the most controversial pesticides, from the early 1960s to the present.
Kees Jansen
wiley   +1 more source

A Hybrid Machine Learning–Metaheuristic Approach to Solving the Quadratic Multidimensional Knapsack Problem

open access: yesMathematics
The quadratic multidimensional knapsack problem (QMdKP) is a combinatorial optimization problem that involves selecting a subset of items to maximize both linear and quadratic profits without exceeding the capacity constraints across multiple dimensions.
Jorge Tapia-Oñate, Carlos Rey
doaj   +1 more source

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