CMSP Seminar (Atomistic Simulation Seminar Series) 15 May, 11:00hrs, by Dr Romina Wild

[CMSP Seminars Secretariat]

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CMSP Seminar (Atomistic Simulation Seminar Series)
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*Wednesday, 15 May 2024, 11:00 hrs*
*/Luigi Stasi Seminar Room (Leonardo Building, first floor)/*/
/
/Zoom registration link: 
https://zoom.us/meeting/register/tJIodeuvpzkiGdTkZKl97yAh9ZWzaFVXcsb1<https://zoom.us/meeting/register/tJMpf-CorT0pEtWnaPyfrbX1otmigXiPSxqv>
<https://zoom.us/meeting/register/tJIodeuvpzkiGdTkZKl97yAh9ZWzaFVXcsb1> /

Speaker:*  Romina Wild * (SISSA)

Title: *Selecting and weighting informative features automatically with 
Differentiable Information Imbalance*

Abstract:

Feature selection is a common practice in many applications and tends to 
come with attached uncertainties such as:
What is the best dimensionality of a reduced feature space in order to 
retain maximum information?
How can one correct for different units of measure?
What is the optimal relative scaling of importance between features?
To solve these questions, we extend Information Imbalance, an effective 
statistic to rank information content between feature spaces, to its 
differentiable form. This Differentiable Information Imbalance is used 
as a loss function to optimize relative feature weights, simultaneously 
performing unit alignment and relative importance scaling. The same 
method can generate sparse solutions.
The optimal size of a reduced space is conveniently found by considering 
the change in the Differentiable Information Imbalance as a function of 
the number of non-zero features.



CMSP, Condensed Matter & Statistical Physics Section

http://www.ictp.it/research/cmsp.aspx

The Abdus Salam International Centre for Theoretical Physics
https://www.ictp.it/

    
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