Zobrazeno 1 - 10
of 291
pro vyhledávání: '"WIT, ERNST C."'
Autor:
Kennerberg, Philip, Wit, Ernst C.
The aim of this paper is to extend worst risk minimization, also called worst average loss minimization, to the functional realm. This means finding a functional regression representation that will be robust to future distribution shifts on the basis
Externí odkaz:
http://arxiv.org/abs/2412.00412
In the modelling of stochastic phenomena, such as quasi-reaction systems, parameter estimation of kinetic rates can be challenging, particularly when the time gap between consecutive measurements is large. Local linear approximation approaches accoun
Externí odkaz:
http://arxiv.org/abs/2410.13744
Autor:
Wood, Simon N., Wit, Ernst C., McKeigue, Paul M., Hu, Danshu, Flood, Beth, Corcoran, Lauren, Jawad, Thea Abou
This paper discusses some statistical aspects of the U.K. Covid-19 pandemic response, focussing particularly on cases where we believe that a statistically questionable approach or presentation has had a substantial impact on public perception, or go
Externí odkaz:
http://arxiv.org/abs/2409.06473
While COVID-19 has resulted in a significant increase in global mortality rates, the impact of the pandemic on mortality from other causes remains uncertain. To gain insight into the broader effects of COVID-19 on various causes of death, we analyze
Externí odkaz:
http://arxiv.org/abs/2409.02378
Autor:
Kennerberg, Philip, Wit, Ernst C.
We consider $k$ square integrable random variables $Y_1,...,Y_k$ and $k$ random (row) vectors of length $p$, $X_1,...,X_k$ such that $X_i(l)$ is square integrable for $1\le i\le k$ and $1\le l\le p$. No assumptions whatsoever are made of any relation
Externí odkaz:
http://arxiv.org/abs/2408.10218
Prediction invariance of causal models under heterogeneous settings has been exploited by a number of recent methods for causal discovery, typically focussing on recovering the causal parents of a target variable of interest. When instrumental variab
Externí odkaz:
http://arxiv.org/abs/2407.16786
Bike sharing is an increasingly popular mobility choice as it is a sustainable, healthy and economically viable transportation mode. By interpreting rides between bike stations over time as temporal events connecting two bike stations, relational eve
Externí odkaz:
http://arxiv.org/abs/2406.09055
Accurately defining, measuring and mitigating risk is a cornerstone of financial risk management, especially in the presence of financial contagion. Traditional correlation-based risk assessment methods often struggle under volatile market conditions
Externí odkaz:
http://arxiv.org/abs/2402.06032
Dynamic networks offer an insight of how relational systems evolve. However, modeling these networks efficiently remains a challenge, primarily due to computational constraints, especially as the number of observed events grows. This paper addresses
Externí odkaz:
http://arxiv.org/abs/2312.12357
Cultural values vary significantly around the world. Despite a large heterogeneity, similarities across national cultures are present. This paper studies cross-country culture heterogeneity via the joint inference of country-specific copula graphical
Externí odkaz:
http://arxiv.org/abs/2311.14367