Zobrazeno 1 - 10
of 30 425
pro vyhledávání: '"Bandeira, A."'
We study the optimization landscape of a smooth nonconvex program arising from synchronization over the two-element group $\mathbf{Z}_2$, that is, recovering $z_1, \dots, z_n \in \{\pm 1\}$ from (noisy) relative measurements $R_{ij} \approx z_i z_j$.
Externí odkaz:
http://arxiv.org/abs/2407.13407
The first paper in this series introduced a new family of nonasymptotic matrix concentration inequalities that sharply capture the spectral properties of very general Gaussian (as well as non-Gaussian) random matrices in terms of an associated noncom
Externí odkaz:
http://arxiv.org/abs/2406.11453
We consider a group synchronization problem with multiple frequencies which involves observing pairwise relative measurements of group elements on multiple frequency channels, corrupted by Gaussian noise. We study the computational phase transition i
Externí odkaz:
http://arxiv.org/abs/2406.03424
The cross-section for the production of an electroweak gauge boson ($G = W^{\pm}, Z^0, \gamma$) at forward rapidities in $pp$ collisions is derived within the color - dipole $S$ - matrix framework. We present the full expressions for the differential
Externí odkaz:
http://arxiv.org/abs/2405.10265
We prove the existence of a positive semidefinite matrix $A \in \mathbb{R}^{n \times n}$ such that any decomposition into rank-1 matrices has to have factors with a large $\ell^1-$norm, more precisely $$ \sum_{k} x_k x_k^*=A \quad \implies \quad \sum
Externí odkaz:
http://arxiv.org/abs/2405.06154
In this study, we delve into the dynamic landscape of machine learning research evolution. Initially, through the utilization of Latent Dirichlet Allocation, we discern pivotal themes and fundamental concepts that have emerged within the realm of mac
Externí odkaz:
http://arxiv.org/abs/2311.03633
Autor:
Maillard, Antoine, Bandeira, Afonso S.
We consider the problem $(\rm P)$ of exactly fitting an ellipsoid (centered at $0$) to $n$ standard Gaussian random vectors in $\mathbb{R}^d$, as $n, d \to \infty$ with $n / d^2 \to \alpha > 0$. This problem is conjectured to undergo a sharp transiti
Externí odkaz:
http://arxiv.org/abs/2310.05787
Publikováno v:
International Journal of Productivity and Performance Management, 2023, Vol. 73, Issue 7, pp. 2284-2304.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJPPM-04-2023-0193
Autor:
Pinheiro, Alan Bandeira, do Prado, Nágela Bianca, Batistella, Ana Julia, Ribeiro, Cintia De Melo de Albuquerque, Mazzioni, Sady
Publikováno v:
International Journal of Manpower, 2023, Vol. 45, Issue 5, pp. 984-998.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJM-06-2023-0347
We consider the problem $(\mathrm{P})$ of fitting $n$ standard Gaussian random vectors in $\mathbb{R}^d$ to the boundary of a centered ellipsoid, as $n, d \to \infty$. This problem is conjectured to have a sharp feasibility transition: for any $\vare
Externí odkaz:
http://arxiv.org/abs/2307.01181