Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Kirchner, Matthias"'
Autor:
Ai, Lin, Kumarage, Tharindu, Bhattacharjee, Amrita, Liu, Zizhou, Hui, Zheng, Davinroy, Michael, Cook, James, Cassani, Laura, Trapeznikov, Kirill, Kirchner, Matthias, Basharat, Arslan, Hoogs, Anthony, Garland, Joshua, Liu, Huan, Hirschberg, Julia
The proliferation of Large Language Models (LLMs) poses challenges in detecting and mitigating digital deception, as these models can emulate human conversational patterns and facilitate chat-based social engineering (CSE) attacks. This study investi
Externí odkaz:
http://arxiv.org/abs/2406.12263
Autor:
Liu, Xinyi, Li, Jinning, Sun, Dachun, Wang, Ruijie, Abdelzaher, Tarek, Brown, Matt, Barricelli, Anthony, Kirchner, Matthias, Basharat, Arslan
The proliferation of political memes in modern information campaigns calls for efficient solutions for image classification by ideological affiliation. While significant advances have recently been made on text classification in modern natural langua
Externí odkaz:
http://arxiv.org/abs/2305.14494
Autor:
Kirchner, Matthias
We consider a sequence of Poisson cluster point processes on $\mathbb{R}^d$: at step $n\in\mathbb{N}_0$ of the construction, the cluster centers have intensity $c/(n+1)$ for some $c>0$, and each cluster consists of the particles of a branching random
Externí odkaz:
http://arxiv.org/abs/2208.08383
Autor:
Kirchner, Matthias, Johnson, Cameron
We explore means to advance source camera identification based on sensor noise in a data-driven framework. Our focus is on improving the sensor pattern noise (SPN) extraction from a single image at test time. Where existing works suppress nuisance co
Externí odkaz:
http://arxiv.org/abs/2002.02927
Publikováno v:
In Stochastic Processes and their Applications October 2023 164:1-32
Camera sensor noise is one of the most reliable device characteristics in digital image forensics, enabling the unique linkage of images to digital cameras. This so-called camera fingerprint gives rise to different applications, such as image forensi
Externí odkaz:
http://arxiv.org/abs/1907.04025
Autor:
Kirchner, Matthias
Let $F$ be a distribution function on $\mathbb{R}$ with $F(0) = 0 $ and density $f$. Let $\tilde{F}$ be the distribution function of $X_1 - X_2$, $X_i\sim F,\, i=1,2,\text{ iid}$. We show that for a critical Hawkes process with displacement density (
Externí odkaz:
http://arxiv.org/abs/1706.03975
Autor:
Chakraborty, Sujoy, Kirchner, Matthias
Publikováno v:
In Journal of Visual Communication and Image Representation October 2021 80
Autor:
Embrechts, Paul, Kirchner, Matthias
Publikováno v:
Theory of Probability and Its Applications, 62(1):163-193 (2017)
This paper introduces the Hawkes skeleton and the Hawkes graph. These objects summarize the branching structure of a multivariate Hawkes point process in a compact, yet meaningful way. We demonstrate how graph-theoretic vocabulary (`ancestor sets', `
Externí odkaz:
http://arxiv.org/abs/1601.01879