Results 31 to 40 of about 4,002,335 (287)

Integrated Modelling Approaches for Sustainable Agri-Economic Growth and Environmental Improvement: Examples from Greece, Canada and Ireland

open access: yesLand, 2022
Complex agricultural problems concern many countries, as a result of competing economic and environmental objectives. In this work we model three common agricultural problems through optimization techniques: a water-scarce area with overexploited surface
Jorge Andres Garcia, Angelos Alamanos
doaj   +1 more source

The complexity of linear programming

open access: yesTheoretical Computer Science, 1980
AbstractThe complexity of linear programming and other problems in the geometry of d-dimensions is studied. A notion of LP-completeness is introduced, and a set of problems is shown to be (polynomially) equivalent to linear programming. Many of these problems involve computation of subsets of convex hulls of polytopes, and require O(n log n) operations
David P. Dobkin, Steven P. Reiss
openaire   +3 more sources

Lexicographic Methods for Fuzzy Linear Programming

open access: yesMathematics, 2020
Fuzzy Linear Programming (FLP) has addressed the increasing complexity of real-world decision-making problems that arise in uncertain and ever-changing environments since its introduction in the 1970s.
Boris Pérez-Cañedo   +3 more
doaj   +1 more source

Linear Programming Complementation

open access: yesTheoretical Computer Science
In this paper we introduce a new operation for Linear Programming (LP), called LP complementation, which resembles many properties of LP duality. Given a maximisation (resp.~minimisation) LP $P$, we define its complement $Q$ as a specific minimisation (resp.~maximisation) LP with the same objective function as $P$.
Maximilien Gadouleau   +2 more
openaire   +4 more sources

Solving a Fully Fuzzy Linear Programming Problem through Compromise Programming

open access: yesJournal of Applied Mathematics, 2013
In the current literatures, there are several models of fully fuzzy linear programming (FFLP) problems where all the parameters and variables were fuzzy numbers but the constraints were crisp equality or inequality.
Haifang Cheng, Weilai Huang, Jianhu Cai
doaj   +1 more source

Modified Method for Solving Fully Fuzzy Linear Programming Problem with Triangular Fuzzy Numbers [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2017
The Fuzzy Linear Programming problem has been used as an important planning tool for the different disciplines such as engineering, business, finance, economics, etc.
S. K. Das
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Computer assisted modelling of linear, integer and separable programming problems [PDF]

open access: yes, 1984
For mathematical programming (MP) to have greater impact upon the decision making process, MP software systems must offer suitable support in terms of model communication and modelling techniques .
Mitra, G, Darby-Dowman, K, Lucas, CA
core   +4 more sources

Fuzziness in linear programming with application [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2009
With regard to the difficulty and the big role that is made to reach the optimal solution of the institutions and factories system processing through the perfect or alternative decision making among the abundant decisions or alternative groups, and ...
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

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