Results 21 to 30 of about 1,129,710 (262)

Size and structure of return to scale in revenue function and cost function

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
Common revenue function expressing the relation of the profit/loss to costs is composed analytically so that it is not instructive enough to analyse the return to scale based on a comparison of results in two different periods.
František Střeleček   +2 more
doaj   +1 more source

On the k-means/median cost function [PDF]

open access: yesInformation Processing Letters, 2022
In this work, we study the $k$-means cost function. Given a dataset $X \subseteq \mathbb{R}^d$ and an integer $k$, the goal of the Euclidean $k$-means problem is to find a set of $k$ centers $C \subseteq \mathbb{R}^d$ such that $Φ(C, X) \equiv \sum_{x \in X} \min_{c \in C} ||x - c||^2$ is minimized.
Anup Bhattacharya   +2 more
openaire   +3 more sources

Diagnostic Model of Coronary Microvascular Disease Combined With Full Convolution Deep Network With Balanced Cross-Entropy Cost Function

open access: yesIEEE Access, 2019
This paper addressed the vessel segmentation and disease diagnostic in coronary angiography image and proposed an Encoder-Decoder architecture of deep learning with End-to-End model, where Encoder is based on ResNet, and the deep features are exacted ...
Shiwen Pan   +7 more
doaj   +1 more source

Deterministic Strategies and Life-time [PDF]

open access: yesActa Montanistica Slovaca, 2007
The work deals with practical application of the deterministic strategy. It describes three models based on optimal life-time. The article introduces equations allowing to calculate life-time for the three models.
Anna Pavlisková
doaj  

Designing MPC algorithms for velocity control of brushed DC motor and verification with SIL tests

open access: yesAutomatika, 2023
The model predictive control (MPC) tries to find the best control output by optimizing among the predictions. In this context, determining the objective function of optimization is a critical process. This study discusses the velocity control of the mini
Murat Sahin
doaj   +1 more source

A Fast SOC Balancing Method for MMC-BESS Based on Nonlinear Model-Predictive Control

open access: yesEnergies
In modular multilevel converter battery energy storage systems (MMC-BESS), state-of-charge (SOC) balancing is essential for ensuring safe and reliable operation.
Xiaofan Ji   +5 more
doaj   +1 more source

Mitigation strategies for participant non-attendance in VR remote collaborative experiments

open access: yesFrontiers in Computer Science, 2022
COVID-19 led to the temporary closure of many HCI research facilities disrupting many ongoing user studies. While some studies could easily move online, this has proven problematic for virtual reality (VR) studies.
Riccardo Bovo   +4 more
doaj   +1 more source

The impact of cost function globality and locality in hybrid quantum neural networks on NISQ devices

open access: yesMachine Learning: Science and Technology, 2023
Quantum neural networks (QNNs) are often challenged with the problem of flat cost function landscapes during training, known as barren plateaus (BP). A solution to potentially overcome the problem of the BP has recently been proposed by Cerezo et al In ...
Muhammad Kashif, Saif Al-Kuwari
doaj   +1 more source

Insecticide Use by Small-Scale Ugandan Cassava Growers: An Economic Analysis

open access: yesAgriculture, 2023
Cassava is the second most important source of calories in Sub-Saharan Africa. It is subject to economically important yield losses from viral diseases, including cassava brown streak disease and cassava mosaic disease.
Irene Bayiyana   +5 more
doaj   +1 more source

Early Impact of Childhood Opportunity on Neurocognitive Outcomes in Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neurocognitive impairment is a well‐recognized complication of sickle cell disease (SCD) that begins early in childhood and persists across development. While cerebrovascular injury contributes substantially to risk, neurocognitive deficits are also observed in children without overt or silent cerebral infarctions, suggesting ...
Julia E. LaMotte   +5 more
wiley   +1 more source

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