scholarly journals An Explicit Algorithm for a Newsboy Problem with Shortage Costs Dependent on Consumers' Demands Derived from a Fuzzy Reasoning Method

2013 ◽  
Vol 25 (3) ◽  
pp. 772-785
Author(s):  
Takashi HASUIKE
Keyword(s):  
Fuzzy Reasoning ◽  
Newsboy Problem ◽  
Explicit Algorithm ◽  
Shortage Costs

scholarly journals The Brouwer invariance theorems in reverse mathematics

2020 ◽  
Vol 8 ◽  
Author(s):  
Takayuki Kihara
Keyword(s):  
Reverse Mathematics ◽  
Base System ◽  
Open Problems ◽  
Explicit Algorithm ◽  
Topological Embedding ◽  
Weak König’S Lemma ◽  
König’S Lemma

Abstract In [12], John Stillwell wrote, ‘finding the exact strength of the Brouwer invariance theorems seems to me one of the most interesting open problems in reverse mathematics.’ In this article, we solve Stillwell’s problem by showing that (some forms of) the Brouwer invariance theorems are equivalent to the weak König’s lemma over the base system ${\sf RCA}_0$ . In particular, there exists an explicit algorithm which, whenever the weak König’s lemma is false, constructs a topological embedding of $\mathbb {R}^4$ into $\mathbb {R}^3$ .

Petrophysical Facies Classification Based on Fuzzy Inference Networks

2013 ◽  
Vol 634-638 ◽  
pp. 4017-4021
Author(s):  
Jun Hui Pan ◽  
Hui Wang ◽  
Xiao Gang Yang
Keyword(s):  
Fuzzy Inference ◽  
Fuzzy Reasoning ◽  
Real Data ◽  
Analysis Data ◽  
Classification Model ◽  
Core Analysis ◽  
Development Zone ◽  
The Real ◽  
Facies Classification ◽  
Quantitative Indicators

Aiming at the petrophysical facies recognition, a novel identification method based on the weighted fuzzy reasoning networks is proposed in the paper. First, the types and indicators are obtained from core analysis data and the results given by experts, and then the standard patterning database of reservoir petrophysical facies is established. Secondly, by integrating expert experiences and quantitative indicators to reflect the change of petrophysical facies, the classification model of petrophysical facies based on the weighted fuzzy reasoning networks is designed. The preferable application results are presented by processing the real data from the Sabei development zone of Daqing oilfield.

The (σ,S) policy for uncertain multi-product newsboy problem

2014 ◽  
Vol 41 (8) ◽  
pp. 3769-3776 ◽  
Author(s):  
Sibo Ding ◽  
Yuan Gao
Keyword(s):  
Newsboy Problem

The capacitated newsboy problem with random yield: The Gardener Problem

2008 ◽  
Vol 115 (1) ◽  
pp. 113-127 ◽  
Author(s):  
Layek Abdel-Malek ◽  
Roberto Montanari ◽  
Diego Meneghetti
Keyword(s):  
Random Yield ◽  
Newsboy Problem
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