Results 101 to 110 of about 79,122 (212)

Predicting Tail-related Risk Measures: The Consequences of Using GARCH Filters for non-GARCH Data [PDF]

open access: yes
We investigate the consequences for value-at-risk and expected short-fall purposes of using a GARCH filter on various mis-specified processes.
Amine JALAL, Michael ROCKINGER
core  

Bank competition and financial stability [PDF]

open access: yes
Under the traditional"competition-fragility"view, more bank competition erodes market power, decreases profit margins, and results in reduced franchise value that encourages bank risk taking.
Berger, Allen N.   +2 more
core  

Non-smooth Non-convex Bregman Minimization: Unification and new Algorithms

open access: yes, 2018
We propose a unifying algorithm for non-smooth non-convex optimization. The algorithm approximates the objective function by a convex model function and finds an approximate (Bregman) proximal point of the convex model.
Brox, Thomas, Fadili, Jalal, Ochs, Peter
core  

Ecological behaviour in the AI economy and its impact on biodiversity: Lessons from the COVID-19 pandemic and a post-COVID perspective

open access: yesFrontiers in Environmental Science, 2022
Elena G. Popkova   +3 more
doaj   +1 more source

A Multi-step Inertial Forward--Backward Splitting Method for Non-convex Optimization

open access: yes, 2016
In this paper, we propose a multi-step inertial Forward--Backward splitting algorithm for minimizing the sum of two non-necessarily convex functions, one of which is proper lower semi-continuous while the other is differentiable with a Lipschitz ...
Fadili, Jalal   +2 more
core  

Activity Identification and Local Linear Convergence of Forward--Backward-type methods

open access: yes, 2017
In this paper, we consider a class of Forward--Backward (FB) splitting methods that includes several variants (e.g. inertial schemes, FISTA) for minimizing the sum of two proper convex and lower semi-continuous functions, one of which has a Lipschitz ...
Fadili, Jalal   +2 more
core  

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