Daniele Venturi

Multi-fidelity modelling via recursive co-kriging and Gaussian–Markov random fields

2015 · Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences

We propose a new framework for design under uncertainty based on stochastic computer simulations and multi-level recursive co-kriging. The proposed methodology simultaneously takes into account multi-fidelity in models, such as direct numerical simulations versus empirical …

Continuously Non-malleable Codes in the Split-State Model

2020 · Journal of Cryptology

Abstract Non-malleable codes (Dziembowski et al., ICS’10 and J. ACM’18) are a natural relaxation of error correcting/detecting codes with useful applications in cryptography. Informally, a code is non-malleable if an adversary trying to tamper with …

Duality and Conditional Expectations in the Nakajima-Mori-Zwanzig Formulation

2016 · arXiv (Cornell University)

We develop a new operator algebraic formulation of the Nakajima-Mori-Zwanzig (NMZ) method of projections. The new theory is built upon rigorous mathematical foundations, and it can be applied to both classical and quantum systems. We …