Zobrazeno 1 - 10
of 8 591
pro vyhledávání: '"A. Ottmar"'
Autor:
Cronie, Ottmar
Deriving exact density functions for Gibbs point processes has been challenging due to their general intractability, stemming from the intractability of their normalising constants/partition functions. This paper offers a solution to this open proble
Externí odkaz:
http://arxiv.org/abs/2406.07075
Autor:
Jansson, Julia, Cronie, Ottmar
Recently, Cronie et al. (2024) introduced the notion of cross-validation for point processes and a new statistical methodology called Point Process Learning (PPL). In PPL one splits a point process/pattern into a training and a validation set, and th
Externí odkaz:
http://arxiv.org/abs/2405.19523
Second-order statistics play a crucial role in analysing point processes. Previous research has specifically explored locally weighted second-order statistics for point processes, offering diagnostic tests in various spatial domains. However, there r
Externí odkaz:
http://arxiv.org/abs/2404.10344
Autor:
Christos Xenofontos, Matthias Kohl, Samuel Ruhl, João Almeida, Hannah M. Beckmann, Lucía Caudillo-Plath, Sebastian Ehrhart, Kristina Höhler, Milin Kaniyodical Sebastian, Weimeng Kong, Felix Kunkler, Antti Onnela, Pedro Rato, Douglas M. Russell, Mario Simon, Leander Stark, Nsikanabasi Silas Umo, Gabriela R. Unfer, Boxing Yang, Wenjuan Yu, Marcel Zauner-Wieczorek, Imad Zgheib, Zhensen Zheng, Joachim Curtius, Neil M. Donahue, Imad El Haddad, Richard C. Flagan, Hamish Gordon, Hartwig Harder, Xu-Cheng He, Jasper Kirkby, Markku Kulmala, Ottmar Möhler, Mira L. Pöhlker, Siegfried Schobesberger, Rainer Volkamer, Mingyi Wang, Stephan Borrmann, Andrea Pozzer, Jos Lelieveld, Theodoros Christoudias
Publikováno v:
npj Climate and Atmospheric Science, Vol 7, Iss 1, Pp 1-12 (2024)
Abstract During summer, ammonia emissions in Southeast Asia influence air pollution and cloud formation. Convective transport by the South Asian monsoon carries these pollutant air masses into the upper troposphere and lower stratosphere (UTLS), wher
Externí odkaz:
https://doaj.org/article/6846160434b94d7ca5909f7ae169303c
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Information about the use of stone tools in the past is encoded in the wear patterns left on their surface; however, post-depositional processes can modify and obstruct these traces. One aim in the field of lithic functional analysis is to d
Externí odkaz:
https://doaj.org/article/7bc280818589421e89686e8e76a9d280
Principal stratification is a framework for making sense of causal effects conditioned on variables that themselves may have been affected by treatment. Most principal stratification estimators rely on strong structural or modeling assumptions, and m
Externí odkaz:
http://arxiv.org/abs/2212.10406
Autor:
Duderstadt, Silke1 (AUTHOR) silke.duderstadt@tiho-hannover.de, Distl, Ottmar1 (AUTHOR) ottmar.distl@tiho-hannover.de
Publikováno v:
Animals (2076-2615). Oct2024, Vol. 14 Issue 19, p2904. 19p.
Autor:
Niklas Döbbeling-Hildebrandt, Klaas Miersch, Tarun M. Khanna, Marion Bachelet, Stephan B. Bruns, Max Callaghan, Ottmar Edenhofer, Christian Flachsland, Piers M. Forster, Matthias Kalkuhl, Nicolas Koch, William F. Lamb, Nils Ohlendorf, Jan Christoph Steckel, Jan C. Minx
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Today, more than 70 carbon pricing schemes have been implemented around the globe, but their contributions to emissions reductions remains a subject of heated debate in science and policy. Here we assess the effectiveness of carbon pricing i
Externí odkaz:
https://doaj.org/article/d30983dbffe04d85a7b36904b087b494
We introduce a family of local inhomogeneous mark-weighted summary statistics, of order two and higher, for general marked point processes. Depending on how the involved weight function is specified, these summary statistics capture different kinds o
Externí odkaz:
http://arxiv.org/abs/2208.09233
This study investigates the spatial distribution of emergency alarm call events to identify spatial covariates associated with the events and discern hotspot regions for the events. The study is motivated by the problem of developing optimal dispatch
Externí odkaz:
http://arxiv.org/abs/2207.07814