3 papers
cs.IT2020
Affine symmetries and neural network identifiability
Verner Vlačić, Helmut Bölcskei
We address the following question of neural network identifiability: Suppose we are given a function and a nonlinearity . Can we specify the arch…
cs.IT2018
Necessary Conditions for K/2 Degrees of Freedom
Recep Gül, Helmut Bölcskei, Shlomo Shamai
Stotz et al., 2016, reported a sufficient (injectivity) condition for each user in a K-user single-antenna constant interference channel to achieve 1/2 degree of freedom. The prese…
cs.IT2015
Density Criteria for the Identification of Linear Time-Varying Systems
Céline Aubel, Helmut Bölcskei
This paper addresses the problem of identifying a linear time-varying (LTV) system characterized by a (possibly infinite) discrete set of delays and Doppler shifts. We prove that s…