Cost Function Selection

2012 ◽  
pp. 145-161
Keyword(s):  
Cost Function ◽  
Function Selection

Cost function selection for wavelet-based VBR video traffic smoothing

2004 ◽  
Vol 40 (23) ◽  
pp. 1509
Author(s):  
D. Ye ◽  
X. Li ◽  
X. Jiang
Keyword(s):  
Cost Function ◽  
Video Traffic ◽  
Traffic Smoothing ◽  
Vbr Video ◽  
Selection For ◽  
Function Selection

Cost Function Selection for a Graph-Based Segmentation in OCT Retinal Images

2013 ◽  
pp. 125-132 ◽  
Author(s):  
A. González ◽  
M. G. Penedo ◽  
S. G. Vázquez ◽  
J. Novo ◽  
P. Charlón
Keyword(s):  
Cost Function ◽  
Retinal Images ◽  
Selection For ◽  
Function Selection

Multistage Machining Process Design and Optimization Using Error Equivalence Method

2009 ◽  
Author(s):  
Shaoqiang Chen ◽  
Hui Wang ◽  
Qiang Huang
Keyword(s):  
Cost Function ◽  
Process Design ◽  
Design Space ◽  
Design Method ◽  
Tolerance Allocation ◽  
Machining Process ◽  
Cost Functions ◽  
Error Sources ◽  
Function Selection ◽  
Multiple Error

In design of a multistage machining process, process tolerance allocation at each stage and design of process layouts, in particular, the fixture layouts, should be optimized considering dimensional tolerance stackup or variation propagation. When multiple error sources contribute to the tolerance stackup, the dimensionality of the design space could be large and design solution may not be unique. One strategy is to prioritize the allocation of tolerances to different error sources at each stage through proper selection of cost functions. Considering the fact that the cost function selection can be very subjective and the knowledge regarding cost structures is very limited, we propose a hierarchical process design method using error equivalence concept to aggregate multiple error sources together. The main idea is to allocate tolerances to the aggregated error sources at each stage and then further distribute the tolerance to individual error sources through cost analysis. The advantage is two-fold: (1) limiting the impact of cost function selection within individual stages to avoid overhaul of process design caused by subtle change in cost functions, and (2) enabling the optimization of fixture layouts to reduce the overall tolerance stackup due to multiple error sources. To reduce computational load in optimizing process layouts, a computer experiment model is developed to explore a large number of process design alternatives. The robustness of the optimal tolerance is evaluated through sensitivity analysis, which provides guidance for process design. We illustrate the error-equivalence-based process design method by a multistage machining process. The results have shown that the proposed method could significantly reduce the design space and increase the design efficiency.

A New Improved Hybrid Meta-Heuristics Method for Unit Commitment with Nonlinear Fuel Cost Function

2009 ◽  
Vol 129 (12) ◽  
pp. 1567-1575 ◽  
Author(s):  
Kenta Okawa ◽  
Hiroyuki Mori
Keyword(s):  
Cost Function ◽  
Unit Commitment ◽  
Fuel Cost

Economies of Scale in Sewage Treatment Using a Translog Cost Function

2012 ◽  
Vol 74 (null) ◽  
pp. 35-46
Author(s):  
박선영 ◽  
Chongwon Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
Cost Function ◽  
Economies Of Scale ◽  
Sewage Treatment ◽  
Translog Cost Function ◽  
Translog Cost

Estimacion de Economias de Escala en el Mercado de Tarjetas de Pago

2019 ◽  
Vol 12 (2) ◽  
pp. 86-92
Keyword(s):  
Cost Function ◽  
Economies Of Scale ◽  
Payment Methods ◽  
Per Se ◽  
Main Banks ◽  
Debit Cards

During the last years, the growth of transactions made through credit and debit cards has presented quite signif- icant increases both in number and in amounts. This paper studies the existence of economies of scale in the pro- cessing of such transactions, a situation that would exist if it were compatible with the existence of a single firm destined to the processing of said operations. The existence of a single firm for processing is not in itself a problem per se, which does generate problems for the competition is the structure of said firm, because for the period of time analyzed, its shareholder composition was composed of The main banks that issue these cards, but also have given them the function of being the acquirer of the merchants for these payment methods, which generates a vertically inte- grated structure, which creates competition problems in the market. After estimating the model indirectly from a cost function, this work determines the existence of economies of scale in the industry.

Cost Function Algorithm based on Repulsion index by Fire detection and Refuge path planning

2016 ◽  
Author(s):  
Sang-Chan Moon ◽  
◽  
Soon-Geul Lee ◽  
Ihn-Sik Weon ◽  
◽  
...  
Keyword(s):  
Path Planning ◽  
Cost Function ◽  
Fire Detection
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