Zobrazeno 1 - 10
of 1 856
pro vyhledávání: '"Wolfgang Karl"'
Autor:
Jingxuan Guo, Fuguo Liu, Wolfgang Karl Härdle, Xueliang Zhang, Kai Wang, Ting Zeng, Liping Yang, Maozai Tian
Publikováno v:
Mathematics, Vol 11, Iss 24, p 4906 (2023)
The presence of nonignorable missing response variables often leads to complex conditional distribution patterns that cannot be effectively captured through mean regression. In contrast, quantile regression offers valuable insights into the condition
Externí odkaz:
https://doaj.org/article/cffc361aa04e494893e0d3ef79396970
Publikováno v:
Exploration of Targeted Anti-tumor Therapy, Vol 3, Iss 1, Pp 90-96 (2022)
Hilar cholangiocarcinoma is a rare primary malignancy associated with a dismal prognosis. Currently, complete extended right or left-sided hepatectomy is the primary curative therapy. Achieving a negative resection margin is associated with long-term
Externí odkaz:
https://doaj.org/article/de3aae431bb24f4fb65c53c455a804fd
Autor:
Julian Winkel, Wolfgang Karl Härdle
Publikováno v:
Risks, Vol 11, Iss 5, p 85 (2023)
Bitcoin Pricing Kernels (PKs) are estimated using a novel data set from Deribit, the leading Bitcoin options exchange. The PKs, as the ratio between risk-neutral and physical density, dynamically reflect the change in investor preferences. Thus, the
Externí odkaz:
https://doaj.org/article/fd46d4de045649a1a8d1abf70430bf77
Autor:
Erqian Li, Jianxin Pan, Manlai Tang, Keming Yu, Wolfgang Karl Härdle, Xiaowen Dai, Maozai Tian
Publikováno v:
Mathematics, Vol 11, Iss 6, p 1295 (2023)
The proportional subdistribution hazards (PSH) model is popularly used to deal with competing risks data. Censored quantile regression provides an important supplement as well as variable selection methods due to large numbers of irrelevant covariate
Externí odkaz:
https://doaj.org/article/a81d7a747fc84d4d829e276565a0a612
Autor:
Andrea Burdack-Freitag, Michael Buschhaus, Gunnar Grün, Wolfgang Karl Hofbauer, Sabine Johann, Anna Maria Nagele-Renzl, Andreas Schmohl, Christian Rudolf Scherer
Publikováno v:
Atmosphere, Vol 13, Iss 10, p 1575 (2022)
The current pandemic of the SARS-CoV-2 virus requires measures to reduce the risk of infection. In addition to the usual hygiene measures, air cleaners are a recommended solution to decrease the viral load in rooms. Suitable technologies range from p
Externí odkaz:
https://doaj.org/article/abed7bbc5b2f441cbb19f8150cdb2374
In the burgeoning realm of cryptocurrency, social media platforms like Twitter have become pivotal in influencing market trends and investor sentiments. In our study, we leverage GPT-4 and a fine-tuned transformer-based BERT model for a multimodal se
Externí odkaz:
http://arxiv.org/abs/2402.10481
Autor:
Wolfgang Karl Hofbauer
Publikováno v:
Toxins, Vol 13, Iss 7, p 465 (2021)
This article gives a comprehensive overview on potentially harmful algae occurring in the built environment. Man-made structures provide diverse habitats where algae can grow, mainly aerophytic in nature. Literature reveals that algae that is potenti
Externí odkaz:
https://doaj.org/article/f6c3b7579bc14e589af8a978d0babec7
We introduce novel approaches to cryptocurrency price forecasting, leveraging Machine Learning (ML) and Natural Language Processing (NLP) techniques, with a focus on Bitcoin and Ethereum. By analysing news and social media content, primarily from Twi
Externí odkaz:
http://arxiv.org/abs/2311.14759