نتایج جستجو برای: risk criterion

تعداد نتایج: 1014579  

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2011
S A Sun S Djordjević S T Khu

It is widely recognised that flood risk needs to be taken into account when designing a storm sewer network. Flood risk is generally a combination of flood consequences and flood probabilities. This paper aims to explore the decision making in flood risk based storm sewer network design. A multiobjective optimization is proposed to find the Pareto front of optimal designs in terms of low constr...

Esfandyar Malekian, Hossein Fakhari, Jamal Ghasemi Serveh Farzad

One of the most important methods of opacity accounting information by management is to accelerate the identification of good news versus delaying the identification of bad news on profits, but there is always a final level of accumulation of bad news in the company, and by reaching that its final level, these bad news will be released, which will lead to a Stock Price Crash Risk. In fact, stoc...

Journal: :European Journal of Operational Research 2014
Alessandra Cillo Philippe Delquié

We study a Mean-Risk model derived from a behavioral theory of Disappointment with multiple reference points. One distinguishing feature of the risk measure is that it is based on mutual deviations of outcomes, not deviations from a specific target. We prove necessary and sufficient conditions for strict first and second order stochastic dominance, and show that the model is, in addition, a Con...

Journal: :Finance and Stochastics 2005
Volker Krätschmer

Artzner, Delbaen, Eber and Heath ([1]) initialized a new direction to assess risks of financial positions by an axiomatic approach. It relies fundamentally on the concept of risk measures, which are functionals on sets of financial positions satisfying some basic properties. The convex risk measures are exactly those ones which guarantee that diversification does not increase the risk. From the...

Journal: :Signal Processing 2010
Ciprian Doru Giurcaneanu Seyed Alireza Razavi

During the last decades, the use of information theoretic criteria (ITC) for selecting the order of autoregressive (AR) models has increased constantly. Because the ITC are derived under the strong assumption that the measured signals are stationary, it is not straightforward to employ them in combination with the forgetting factor least-squares algorithms. In the previous literature, the attem...

ژورنال: حسابداری مالی 2019

The aim of research is to investigate the effect of information asymmetry on the relationship between geographical location of firm and risk of stock price crash in the Iranian listed companies in Tehran stock exchange. For this Purpose, data of 110 listed companies was gathered and analyzed periodically in 2016. Distance Cosine index was used for geographical location, as the independent varia...

Journal: :gastroenterology and hepatology from bed to bench 0
asma pourhoseingholi alireza akbarzadeh baghban farid zayeri seyed moayed alavian mohsen vahedi

aim : the aim of this study was to compare alternatives methods for analysis of zero inflated count data and compare them with simple count models that are used by researchers frequently for such zero inflated data. background : analysis of viral load and risk factors could predict likelihood of achieving sustain virological response (svr). this information is useful to protect a person from ac...

Journal: :J. Systems Science & Complexity 2010
Minghui Xu Jianbin Li

This paper investigates a risk-averse inventory model by balancing the expected profit and conditional value-at-risk (CVaR) in a newsvendor model setting. We find out that: i) The optimal order quantity is increasing in the shortage cost for both the CVaR only criterion and the tradeoff objective. ii) For the case of zero shortage cost, the optimal order quantity to the CVaR criterion or tradeo...

2015
Paul Dupuis William M. McEneaney

The problem of controlling a noisy process so as to prevent it from leaving a prescribed set has a number of interesting applications. In this paper, new criteria for this problem are considered. First, a risk-sensitive criterion for a stochastic diffusion process model is examined, and it is shown that the value is a classical solution of a related PDE. The qualitative properties of this crite...

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