scholarly journals On reconstructability of quadratic utility functions from the iterations in gradient methods

Automatica ◽  
2016 ◽  
Vol 66 ◽  
pp. 254-261
Author(s):  
Farhad Farokhi ◽  
Iman Shames ◽  
Michael G. Rabbat ◽  
Mikael Johansson
Keyword(s):  
Gradient Methods ◽  
Utility Functions ◽  
Quadratic Utility

scholarly journals Some Forms of InvestorRiskTolerance in Investing: Review Theory

2020 ◽  
Vol 1 (3) ◽  
pp. 23-28
Author(s):  
Jumadil Saputra
Keyword(s):  
Theoretical Study ◽  
Utility Functions ◽  
Risk Tolerance ◽  
Square Root ◽  
Logarithmic Utility ◽  
Quadratic Utility ◽  
Level Of Risk

Investors in investing are always accompanied by a sense of tolerance for the risk of funds invested in an asset. Each investor has a different form of risk tolerance, depending on the function of the utility. This paper aims to conduct a theoretical study of the forms of investor risk tolerance for several utility functions. This study is carried out by reviewing several utility functions which include: square root utility, cubic fraction utility, quadratic utility, exponential negative utility, and logarithmic utility. Based on the results of the study for each of these utility functions, successively obtained risk tolerance in the form of linear, linear, linear, constant, and linear. Linear risk tolerance illustrates that an investor changes the value of his investment in line with changes in the level of risk faced.

Credit cards scoring with quadratic utility functions

2002 ◽  
Vol 11 (4-5) ◽  
pp. 197-211 ◽  
Author(s):  
Vladimir Bugera ◽  
Hiroshi Konno ◽  
Stanislav Uryasev
Keyword(s):  
Credit Cards ◽  
Utility Functions ◽  
Quadratic Utility

EFFECTIVENESS OF "SWIM-UP" AND "GRADIENT" METHODS IN SPERM PREPARATION FOR ARTIFICIAL INSEMINATION

2014 ◽  
pp. 25-29
Author(s):  
Minh Tam Le ◽  
Van Trung Nguyen ◽  
Thi Tam An Nguyen ◽  
Quang Trung Phan ◽  
Ngoc Thanh Cao
Keyword(s):  
Gradient Method ◽  
Artificial Insemination ◽  
Sperm Count ◽  
Gradient Methods ◽  
Infertility Treatment ◽  
University Hospital ◽  
Preparation Methods ◽  
Sperm Preparation ◽  
Abnormal Morphology ◽  
Sperm Washing

Objectives: Artificial insemination with sperm preparation and inseminate to the uterus is a common method of infertility treatment. Currently two methods used for sperm washing is “swim-up” and “gradient”. Materials and methods:cross-sectional description in 166 cycles of artificial insemination in Hue University Hospital from April, 2012 to March, 2013 in order to compare effectiveness between “swim-up” and “gradient” methods. Samples were collected randomly into two methods. Results:Results of sperm preparation in both methods are equivalent in terms of the following parameters total sperm count, total number of progressive sperm, total good morphology sperm. However, “gradient” method results in higher number of progressive sperm in case with slow motility (38.3% vs. 26.1%) or abnormal morphology (34.9% vs. 19.7 %) compared with “swim-up” method. Pregnancy rates after artificial insemination were similar between two preparation methods. Conclusion:In case of slow motility sperm and abnormal morphology, “gradient” method should be used to increase the number of progressive sperms. Pregnancy outcome depends on many factors other than preparation methods. Key words: Artificial insemination, sperm preparation, infertility treatment

A New Light on Old Insight: Optimal Risk Taking with Quadratic Utility

2012 ◽  
Author(s):  
Jung Lim Koo ◽  
Se Ryoong Ahn ◽  
Byung Lim Koo ◽  
Hyeng Keun Koo ◽  
Yong Hyun Shin
Keyword(s):  
Risk Taking ◽  
Quadratic Utility
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