Results 221 to 230 of about 155,072 (308)

A Deep Neural Network Based on Two‐Stage Training for Estimating Heart Rate Variability From Camera Videos

open access: yesHealth Care Science, EarlyView.
Heart Rate Variability Estimation from Camera Videos ABSTRACT Background Studies have shown that heart rate variability (HRV) is a predictor of the prognosis of cardiovascular diseases. Contact heartbeat monitoring equipment is widely used, especially in hospitals, and benefits from the rapidity and accuracy of the detection of physiological health ...
Lan Lan   +8 more
wiley   +1 more source

Scaling With Bias? The Role of Founders' HR Knowledge and Experience in Hiring and Managerial Appointments

open access: yesHuman Resource Management, EarlyView.
ABSTRACT New ventures are expected to continuously add new jobs and managerial positions to meet the expanding demands of scaling. However, the rapid pace and inherent uncertainty of scaling often lead founders of new ventures to rely on heuristics when making these critical hiring and managerial appointment decisions.
Mohamed Genedy   +3 more
wiley   +1 more source

Using Deep Learning Conditional Value‐at‐Risk Based Utility Function in Cryptocurrency Portfolio Optimisation

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT One of the critical risks associated with cryptocurrency assets is the so‐called downside risk, or tail risk. Conditional Value‐at‐Risk (CVaR) is a measure of tail risks that is not normally considered in the construction of a cryptocurrency portfolio.
Xinran Huang   +3 more
wiley   +1 more source

Climate Transition Risk, ESG Rating Divergence and Portfolio Performance: Evidence From Composite Scores and Climate‐Adjusted Factor Models

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This study investigates how ESG rating divergences and climate transition risks jointly influence portfolio performance. Using a newly constructed composite Environmental (E) score derived from principal component analysis (PCA) across three leading ESG providers (Eikon, RobecoSAM, Sustainalytics), we build industry‐adjusted portfolios for 389 
Ahmed Bouteska   +2 more
wiley   +1 more source

Risk Aversion and Economic Policy Uncertainty Impacts on Investor Attention: Evidence From International Stock Markets Indices

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This paper examines the relationship between economic policy uncertainty, risk aversion, and investors' attention for 15 equity indices across Asia, Europe, and North America. Our empirical results indicate that both risk aversion and economic uncertainty significantly increase the Google Search Volume across all equity indices.
Stephanos Papadamou   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy