ChattingWith: Intervista a A. Vesnaver & E. Denich (INOGS, Trieste).

Pubblicato il 29 ott 2020

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Italian SEG Challenge Bowl 2024

Nel corso del prossimo 42° Convegno Nazionale GNGTS a Ferrara, il giorno 14 Febbraio, si terrà la quindicesima Edizione dell’ Italian Challenge Bowl, ovvero la Grande Sfida a Quiz tra studenti di Geofisica Applicata.
La gara si svolge in inglese, ed è aperta a studenti di laurea e dottorato di ricerca. I partecipanti si iscrivono in squadre di due persone, idealmente una più esperta in geofisica ed una in geologia, vista l’interdisciplinarietà delle domande.

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PARTICIPATE IN THE 2023 EAGE BOARD ELECTIONS

The annual EAGE Board elections are due to take place, with voting online beginning from 1 May to 1 June 2023. The Board is responsible for developing appropriate policies to achieve the objectives of EAGE in the interests of its members. We therefore invite all members to participate in the 2023 Ballot, as this is an important opportunity for you to have a say in how the Association is run on your behalf.

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Premio di laurea in Geofisica “VITTORIO ILICETO”

Per onorare la memoria del Prof. Vittorio Iliceto, già membro del Consiglio Nazionale dei Geologi e Docente di Geofisica presso l’Università degli Studi di Padova e Ferrara, si istituisce il premio di Laurea VITTORIO ILICETO (fissato, per l’anno 2023, in Euro 1.500)
da assegnare ad un giovane laureato in Scienze Geologiche, Geofisiche, Fisica, Scienze Ambientali
o Ingegneria che abbia discusso una tesi di laurea magistrale con tematiche inerenti la GEOFISICA TEORICA ED APPLICATA

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More About This Event

What are the main applications of Seismic Inversion in your research centre?

A.V. – In our team, two research trends have been living together for 10/20 years:

  • Seismic tomography;
  • Seismic modeling (the major international expert is Mr. “Jose Carcione”).

Considering these two branches of geophysics, which we have been working for about a year and a half to build our own approach to full waveform inversion. We do not want to replicate what already exists but look for new ways to reduce computational cost.

In particular, we have been thinking since the beginning to develop a parallel code. We have proposed some projects to keep multi-year funding of the ERC (European research council) and other public or private investors.

In your opinion, what are the future goals of Seismic inversion?

E.D. – In my opinion, researchers have recently been developing parallel algorithms of FWI, using tools such as High-Performance-Computing to implement Machine Learning techniques to analyze Big data (i.e. genetic algorithms).

A.V. – in the future, we will not have to limit ourselves to estimating only the P speeds but we will have to work more on the elastic front and extend the analysis also to the inelastic field. We could also get good results on the anisotropy front, but for the moment, I remain a bit skeptical. With a view to reducing calculation times, as Eleonora said, I believe that artificial intelligence is a very promising new frontier.

As an old physicist, I love this technique very much. I hope that the use of artificial intelligence is a way to improve the physical / analytical knowledge of the problem, constituting a more robust approach to represent the nature that surrounds us.

 You both mentioned parallel computing, artificial intelligence, machine learning; what has been the impact of these technologies on today’s geophysics?

E.D. – nowadays the massive use of artificial intelligence has almost become a fashion. As Aldo said, techniques such as Neural Networks should not be used immediately. First, it is necessary to try to simplify the problem from an analytical point of view, defining sensible optimization functions. Already from the beginning, you can do a lot without immediately resorting to super calculators.

A.V. – I absolutely agree. I would like to add a historical note … I remember that in the 90s, expert systems were very fashionable, it seemed that these would be the future of Geophysics. In reality, after 10 years of talking about it, the revolution has not been seen, now there has been 20 years in which no one has spoken about it anymore.