Results 21 to 30 of about 2,787,379 (259)

Comparing Optimal Portfolio Performance Based on Skew-Normal Distribution and Skew-Laplace-Normal Distribution: A Mean-Absolute Deviation-Entropy Approach [PDF]

open access: yesمدیریت صنعتی
Objective Investors typically seek to strike the optimal balance between potential returns and associated risks in their trades. Various models have been presented to choose the optimal portfolio using different approaches.
Hila Rezaei   +2 more
doaj   +1 more source

The Use of Neural Networks in Distance Education Technologies for the Identification of Students

open access: yesОткрытое образование (Москва), 2021
Purpose of the research. The purpose of this research is to study the problems of the features of teaching technologies of modern artificial neural networks for carrying out the procedure of unambiguous authentication of students according to a pre ...
O. A. Kozlova, A. A. Protasova
doaj   +1 more source

Loss Reserving Using Loss Aversion Functions [PDF]

open access: yesSSRN Electronic Journal, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Choo, Weihao, De Jong, Piet
openaire   +1 more source

Additive Angular Margin Loss in Deep Graph Neural Network Classifier for Learning Graph Edit Distance

open access: yesIEEE Access, 2020
The recent success of graph neural networks (GNNs) in the area of pattern recognition (PR) has increased the interest of researchers to use these frameworks in non-euclidean structures.
Nadeem Iqbal Kajla   +5 more
doaj   +1 more source

Loss Functions for Loss Estimation

open access: yesThe Annals of Statistics, 1988
Let X be a random variable with distribution \(P_{\theta}\), where \(\theta\in \Theta\), and d(X) a decision for \(\theta\) with loss W(\(\theta\),d(X)). A class of loss functions combining the decision error W(\(\theta\),d(X)) and the error in estimating W(\(\theta\),d(X)) by h(X) is introduced. Under these loss functions the Bayes procedure \((d_ B(X)
openaire   +3 more sources

A Kernel Density Estimation Based Loss Function and its Application to ASV-Spoofing Detection

open access: yesIEEE Access, 2020
Biometric systems are exposed to spoofing attacks which may compromise their security, and voice biometrics, also known as automatic speaker verification (ASV), is no exception.
Alejandro Gomez-Alanis   +2 more
doaj   +1 more source

A Pedestrian Detection Network Model Based on Improved YOLOv5

open access: yesEntropy, 2023
Advanced object detection methods always face high algorithmic complexity or low accuracy when used in pedestrian target detection for the autonomous driving system.
Ming-Lun Li, Guo-Bing Sun, Jia-Xiang Yu
doaj   +1 more source

Are Analysts' Loss Functions Asymmetric? [PDF]

open access: yesJournal of Forecasting, 2006
ABSTRACTDespite displaying a statistically significant optimism bias, analysts' earnings forecasts are an important input to investors’ valuation models. Understanding the possible reasons for any bias is important if information is to be extracted from earnings forecasts and used optimally by investors. Extant research into the shape of analysts' loss
Clatworthy, Mark A.   +2 more
openaire   +3 more sources

Fusion of Brain PET and MRI Images Using Tissue-Aware Conditional Generative Adversarial Network With Joint Loss

open access: yesIEEE Access, 2020
Positron emission tomography (PET) has rich pseudo color information that reflects the functional characteristics of tissue, but lacks structural information and its spatial resolution is low.
Jiayin Kang, Wu Lu, Wenjuan Zhang
doaj   +1 more source

YOLO-MMCE algorithm for visual detection of engineering vehicles in high-consequence area

open access: yesYou-qi chuyun
Objective Engineering vehicles operating on large-scale construction sites in high-consequence areas pose severe safety hazards to buried pipelines. This paper addresses the shortcomings of current common techniques for detecting overlapped targets of ...
Huimei SUN   +3 more
doaj   +1 more source

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