Results 161 to 170 of about 72,730 (310)

Locally Ideal Formulations for Piecewise Linear Functions with Indicator Variables

, 2013
In this paper, we consider mixed integer linear programming (MIP) formulations for piecewise linear functions (PLFs) that are evaluated when an indicator variable is turned on.
Linderoth, Jeff, James Luedtke, Luedtke, Jim, Luedtke, James, Sridhar, Srikrishna, Srikrishna Sridhar, Jeff Linderoth   +6 more
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Diabetic Retinopathy Classification With Convolutional Neural Networks Designed by the Fuzzy Grey Wolf Optimizer With Parameter Adaptation

AI &Innovation, EarlyView.
ABSTRACT The detection and classification of diseases have become a field of interest for artificial intelligence in recent years, where the development of methods and models that allow support for specialists in different health fields has allowed early detection of diseases and the provision of timely treatment to patients.
Rodrigo Cordero‐Martínez, Daniela Sánchez, Patricia Melin   +2 more
wiley   +1 more source

Modelling and solution methods for stochastic optimisation

, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In this thesis we consider two research problems, namely, (i) language constructs for modelling stochastic programming (SP) problems and (ii) solution ...
Zverovich, Victor
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Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

Isometric Cylinder Method for Strict Mixed-integer Linear Programming

, 2009
In this paper, we solve strict mixed-integer linear programming not including integer linear programming by isometric cylinder method under the MATLAB environment. The algorithm considers the optimization problems for both whole and real variables of the
Yang LY(杨丽英), Nie YY(聂义勇), Han JD(韩建达)   +2 more
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The IL‐10/IL‐6 Ratio and the Risk Score: Two Cytokines‐Based Predictors for Malignancy‐Associated Hemophagocytic Lymphohistiocytosis in Adults (M‐HLHa)

American Journal of Hematology, EarlyView.
ABSTRACT The predictive value of cytokines (CK) for malignancy‐associated adult hemophagocytic lymphohistiocytosis (M‐HLHa) remains uncertain. We evaluated a cytokine‐based Risk Score (RS) and the IL‐10/IL‐6 Ratio to predict M‐HLHa. Adult patients (n = 112) from the French HLH cohort (NCT02113917) with complete data for nine key HLH related CK measured
Coralie Bloch, Stephanie Chhun, Nanthara Sritharan, Marine Gil, Raphael Lhote, Marouane Boubaya, Olivier Lambotte, David Launay, Claire Larroche, Estibaliz Lazaro, Francois Liffermann, Marc Michel, Jean‐Marie Michot, Pierre Morel, Louis Terriou, Geoffrey Urbansk, Jean‐Francois Viallard, Morgane Cheminant, Felipe Suarez, Yves Lepelletier, Geneviève de Saint Basile, Olivier Hermine, the French HLH Study Group, Coralie Bloch, Jean Philippe Jais, Francois Liffermann, Pierre Morel, Morgane Cheminant, Felipe Suarez, Olivier Hermine, Fabrice Bonnet, Pascal Godemer, Damaj Gandhi, Olivier Fain, Olivier Lambotte, David Launay, Louis Terriou, Claire Larroche, Estibaliz Lazaro, Jean‐Francois Viallard, Francois Liffermann, Olivier Lortholary, Marc Michel, Jean‐Marie Michot, Pierre Morel, Frederic Pene, Antoinette Perlat, Geoffrey Urbanski   +47 more
wiley   +1 more source

A novel method for inference of acyclic chemical compounds with bounded branch-height based on artificial neural networks and integer programming. [PDF]

Algorithms Mol Biol, 2021
Azam NA, Zhu J, Sun Y, Shi Y, Shurbevski A, Zhao L, Nagamochi H, Akutsu T.   +7 more
europepmc   +1 more source

Assessment of Genetic Correlations Between Tobacco or Alcohol Use and Neurodegenerative Diseases Using East Asian Genetic Ancestry Genome‐Wide Association Study Results

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Alzheimer's disease (AD) and Parkinson's disease (PD) are the most prevalent late‐onset neurodegenerative diseases worldwide. Both are influenced in part by genetic factors and are currently incurable. Tobacco and alcohol, the two most common substances used among the general adult population, are potential AD/PD risk factors and are also ...
Linda Wang, Wiame Belbellaj, Frida Lona‐Durazo, Sarah A. Gagliano Taliun   +3 more
wiley   +1 more source

Convex approximations for a class of mixed-integer recourse models

We consider mixed-integer recourse (MIR) models with a single recourse constraint.We relate the secondstage value function of such problems to the expected simple integer recourse (SIR) shortage function.
Vlerk, Maarten H. van der
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Constraint and Integer Programming

, 2004
The purpose of this introductory chapter is to provide the basic concepts behind Constraint Programming CP and Integer Programming IP. These two fields cover a variety of aspects and have been widely studied. Therefore, here we do not intend to give a
MILANO, MICHELA, M. TRICK
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