Search Results for author: Federico Toschi

Found 11 papers, 2 papers with code

Towards a Numerical Proof of Turbulence Closure

no code implementations18 Feb 2022 Giulio Ortali, Alessandro Corbetta, Gianluigi Rozza, Federico Toschi

The development of turbulence closure models, parametrizing the influence of small non-resolved scales on the dynamics of large resolved ones, is an outstanding theoretical challenge with vast applicative relevance.

Spatial population genetics with fluid flow

no code implementations16 Dec 2021 Roberto Benzi, David R. Nelson, Suraj Shankar, Federico Toschi, Xiaojue Zhu

The growth and evolution of microbial populations is often subjected to advection by fluid flows in spatially extended environments, with immediate consequences for questions of spatial population genetics in marine ecology, planktonic diversity and origin of life scenarios.

Pedestrian orientation dynamics from high-fidelity measurements

no code implementations14 Jan 2020 Joris Willems, Alessandro Corbetta, Vlado Menkovski, Federico Toschi

We investigate in real-life conditions and with very high accuracy the dynamics of body rotation, or yawing, of walking pedestrians - an highly complex task due to the wide variety in shapes, postures and walking gestures.

Vocal Bursts Intensity Prediction

Deep learning velocity signals allows to quantify turbulence intensity

no code implementations13 Nov 2019 Alessandro Corbetta, Vlado Menkovski, Roberto Benzi, Federico Toschi

Turbulence, the ubiquitous and chaotic state of fluid motions, is characterized by strong and statistically non-trivial fluctuations of the velocity field, over a wide range of length- and time-scales, and it can be quantitatively described only in terms of statistical averages.

The collective effect of finite-sized inhomogeneities on the spatial spread of populations in two dimensions

1 code implementation11 Oct 2019 Wolfram Möbius, Francesca Tesser, Kim M. J. Alards, Roberto Benzi, David R. Nelson, Federico Toschi

In a regime where front dynamics is determined by a local front speed only, a principle of least time can be employed to predict front speed and shape.

StampNet: unsupervised multi-class object discovery

1 code implementation7 Feb 2019 Joost Visser, Alessandro Corbetta, Vlado Menkovski, Federico Toschi

Unsupervised object discovery in images involves uncovering recurring patterns that define objects and discriminates them against the background.

Clustering Image Clustering +2

Accurate pedestrian localization in overhead depth images via Height-Augmented HOG

no code implementations31 May 2018 Werner Kroneman, Alessandro Corbetta, Federico Toschi

We tackle the challenge of reliably and automatically localizing pedestrians in real-life conditions through overhead depth imaging at unprecedented high-density conditions.

BIG-bench Machine Learning Data Augmentation

Weakly supervised training of deep convolutional neural networks for overhead pedestrian localization in depth fields

no code implementations9 Jun 2017 Alessandro Corbetta, Vlado Menkovski, Federico Toschi

Even though hand-crafted image analysis algorithms are successful in many common cases, they fail frequently when there are complex interactions of multiple objects in the image.

Data Augmentation Object Localization

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