Bias Versus Non-Convexity in Compressed Sensing

Autor: Daniele Gerosa, Marcus Carlsson, Carl Olsson

Publikováno v: Journal of Mathematical Imaging and Vision. 64:379-394

Cardinality and rank functions are ideal ways of regularizing under-determined linear systems, but optimization of the resulting formulations is made difficult since both these penalties are non-convex and discontinuous. The most common remedy is to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::52f957b70397efe9c4c1e6d969e162a6
https://doi.org/10.1007/s10851-022-01071-5

A trace theorem for Martinet-type vector fields

Autor: Daniele Morbidelli, Daniele Gerosa, Roberto Monti

In $\mathbb{R}^3$ we consider the vector fields \[ X_1 =\frac{ \partial }{\partial x},\qquad X_2 =\frac{ \partial }{\partial y}+ |x|^\alpha \frac{ \partial }{\partial z}, \] where $\alpha\in\left[1,+\infty\right[$. Let $\mathbb{R}^3_+ =\{(x,y,z)\in\m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e376db5540beb73a7664c897480717e
http://hdl.handle.net/11585/813916

An unbiased approach to compressed sensing

Autor: Daniele Gerosa, Marcus Carlsson, Carl Olsson

Publikováno v: Inverse Problems. 36:115014

In compressed sensing a sparse vector is approximately retrieved from an under-determined equation system Ax = b. Exact retrieval would mean solving a large combinatorial problem which is well known to be NP-hard. For b of the form Ax 0 + ϵ, where x

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::187743b39481ccf2f242222d9339d227
https://doi.org/10.1088/1361-6420/abbd7f

Realiability of Ambient Vibration Techniques in Structural Health Monitoring of both Historical and Modern Buildings

Autor: Rosastella Daminelli (1), Alberto Marcellini (1), Daniele Gerosa (2)

Publikováno v: EGU General Assembly 2018, Vienna, Austria, 8-13/04/2018
info:cnr-pdr/source/autori:Rosastella Daminelli (1), Alberto Marcellini (1), and Daniele Gerosa (2)/congresso_nome:EGU General Assembly 2018/congresso_luogo:Vienna, Austria/congresso_data:8-13%2F04%2F2018/anno:2018/pagina_da:/pagina_a:/intervallo_pagine

Earthquake risk reduction strategies largely rely in vulnerability mitigation of existing buildings; therefore structural health monitoring is a major issue. Ambient vibration analysis, currently adopted in geophysical investigation (like HVSR for si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::f7ce4612fc52f33e4eeb3f19bb074096
http://www.cnr.it/prodotto/i/395599

Probabilistic versus deterministic hazard assessment in liquefaction susceptible zones

Autor: Rosastella Daminelli Daniele Gerosa Alberto Marcellini Alberto tento

Publikováno v: EGU General Assembly 2015, Vienna, 12 aprile 2015
info:cnr-pdr/source/autori:Rosastella Daminelli Daniele Gerosa Alberto Marcellini Alberto tento/congresso_nome:EGU General Assembly 2015/congresso_luogo:Vienna/congresso_data:12 aprile 2015/anno:2015/pagina_da:/pagina_a:/intervallo_pagine

Probabilistic seismic hazard assessment (PSHA), usually adopted in the framework of seismic codes redaction, is based on Poissonian description of the temporal occurrence, negative exponential distributionof magnitude and attenuation relationship wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::b34678cabc3e0ef686e7a90f327956da
https://publications.cnr.it/doc/344248