Zobrazeno 1 - 10
of 551
pro vyhledávání: '"Merkurjev, A."'
Autor:
Gerhart, Torin, Sunu, Justin, Merkurjev, Ekaterina, Chang, Jen-Mei, Gilles, Jerome, Bertozzi, Andrea L.
Publikováno v:
SPIE Defense, Security, and Sensing, 2013, Baltimore, Proceedings Volume 8743, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIX; 87430J (2013)
Automated detection of chemical plumes presents a segmentation challenge. The segmentation problem for gas plumes is difficult due to the diffusive nature of the cloud. The advantage of considering hyperspectral images in the gas plume detection prob
Externí odkaz:
http://arxiv.org/abs/2411.00281
Autor:
Merkurjev, Alexander, Scavia, Federico
For every finite group $H$ and every finite $H$-module $A$, we determine the subgroup of negligible classes in $H^2(H,A)$, in the sense of Serre, over fields with enough roots of unity. As a consequence, we show that for every odd prime $p$, every in
Externí odkaz:
http://arxiv.org/abs/2410.12560
Active learning enhances the performance of machine learning methods, particularly in semi-supervised cases, by judiciously selecting a limited number of unlabeled data points for labeling, with the goal of improving the performance of an underlying
Externí odkaz:
http://arxiv.org/abs/2409.09475
Data sets with imbalanced class sizes, where one class size is much smaller than that of others, occur exceedingly often in many applications, including those with biological foundations, such as disease diagnosis and drug discovery. Therefore, it is
Externí odkaz:
http://arxiv.org/abs/2406.06479
Autor:
Merkurjev, Alexander, Scavia, Federico
Let $p$ be a prime number and let $F$ be a field of characteristic different from $p$. We prove that there exist a field extension $L/F$ and $a,b,c,d$ in $L^{\times}$ such that $(a,b)=(b,c)=(c,d)=0$ in $\mathrm{Br}(F)[p]$ but $\langle a,b,c,d\rangle$
Externí odkaz:
http://arxiv.org/abs/2309.17004
Autor:
Merkurjev, Alexander, Scavia, Federico
Let $p$ be a prime number, let $G$ be a profinite group, let $\theta\colon G\to \mathbb{Z}_p^{\times}$ be a continuous character, and for all $n\geq 1$ write $\mathbb{Z}/p^n\mathbb{Z}(1)$ for the twist of $\mathbb{Z}/p^n\mathbb{Z}$ by the $G$-action.
Externí odkaz:
http://arxiv.org/abs/2308.13682
The success of many machine learning (ML) methods depends crucially on having large amounts of labeled data. However, obtaining enough labeled data can be expensive, time-consuming, and subject to ethical constraints for many applications. One approa
Externí odkaz:
http://arxiv.org/abs/2305.16239
Autor:
Merkurjev, Alexander, Scavia, Federico
We prove the Massey Vanishing Conjecture for $n=4$ and $p=2$. That is, we show that for all fields $F$, if a fourfold Massey product modulo $2$ is defined over $F$, then it vanishes over $F$.
Externí odkaz:
http://arxiv.org/abs/2301.09290
In molecular and biological sciences, experiments are expensive, time-consuming, and often subject to ethical constraints. Consequently, one often faces the challenging task of predicting desirable properties from small data sets or scarcely-labeled
Externí odkaz:
http://arxiv.org/abs/2211.06759
Autor:
Merkurjev, Alexander, Scavia, Federico
We prove that, for all fields $F$ of characteristic different from $2$ and all $a,b,c\in F^\times$, the mod $2$ Massey product $\langle a,b,c,a \rangle$ vanishes as soon as it is defined. For every field $F_0$, we construct a field $F$ containing $F_
Externí odkaz:
http://arxiv.org/abs/2208.13011