July 3, 2021

Douarnenez : le champ des sirènes de Marianne Larvol

Réminiscences de la légende de la ville d'Ys, les murs de Douarnenez en Bretagne viennent d'être habités de sirènes, fresques ou collages éphémères dus au travail de Marianne Larvol. graphiste, illustratrice. Les escargots et les averses auront bientôt raison de ces beautés marines, alors en voici une trace. Détails: À Douarnenez, les sirènes de Marianne Larvol enchantent le promeneur. Et pour l'accompagnement musical, Sirenes de Guillaume Perret sur le bel album A certain trip.









 
Guillaume Perret, Sirenes, A certain trip


 


April 19, 2021

Le principe du kebab et la mafia numérique

[Post to be continued later, I'm just marking space]

I developed the Kebab principle in Strasbourg (Alsace, France), lunching excellent kebabs (with Rotekohl) in Pamukalle II.

I elaborated on the Digital Mafia in another and more gourmet Kebab restaurant in Paris: rue du Paradis, in one Our Kebab franchise (Grand Paris, France).

Stay tuned (teaser)

March 21, 2021

Kultur Pop 49 : syzygy

Kultur Pop ? Il s'agit de compilations de génériques musicaux d'émissions de radio (surtout culturelles, France Culture/France Inter, et parfois des intruses), émissions et musiques qui m'ont influencées. 


L
e 49e volume de génériques radiophoniques Kultur Pop, vient donc de paraître. Il est nommé "Syzygy". Cela faisait plusieurs confinements depuis le numéro 48, et tous les précédents disponibles sur "La vertu d'un LA : Kultur Pop". Coïncidence, il contient un morceau du EP de Saycet :
"One Day At Home".

 Kultur Pop 49 "Syzygy" se place sous le signe de la science, dans une conjonction (syzygy ou syzygie). Celle du décès de Michel Alberganti (producteur de radio, journaliste et écrivain) qui anima notamment la passionnante émission "Science-Friction" sur France Culture. Et celle du prix AJSPI (Association des journalistes scientifiques de la presse d’information) du meilleur journaliste scientifique de l'année 2021 décerné au journaliste scientifique Nicolas Martin (avec notamment : Radiographie du coronavirus, Les idées Claires, La Méthode Scientifique).

Tandis :

  • que le rayon de la pandémie s’accroît,
  • que le volume de la crédibilité dite scientifique se dissipe dans les vapeurs vaccinales,
  • que toute attestation atteste de la fragilité attestant les propos ci-dessus,

nous écouterons :

  • Kultur Pop #49-01 Juke-Box (ex-Métronomique), France Culture : David Axelrod, Holy Thursday 
  • Kultur Pop #49-02 Science Friction, fin, France Culture : Readymade FC (Jean-Philippe verdin) Interlude 01 
  • Kultur Pop #49-03 De beaux lendemains - début, France Culture : O. Lamm, Kopavogur Revisited & Tennis / Piano In Kyoto
  • Kultur Pop #49-04 Heureux qui comme Ulysse (France Inter) et La démarche scientifique, Le journal des sciences (France Culture) : Saycet, Chromatic bird
  • Kultur Pop #49-05 La méthode scientifique, fin (France Culture) : Nils Frahm, Says
  • Kultur Pop #49-06 Interlude jour, après Sur les docks (France Culture) :  Jean-Yves Berenguer, Ellipse ([Mino]taure)
  • Kultur Pop #49-07 Science Friction, interlude (France Culture) :  F. S. Blumm, Standuhrwerk
  • Kultur Pop #49-08 La méthode scientifique, La recherche montre en main (France Culture) : Little People, Start Shootin'
  • Kultur Pop #49-09 Nouvelles écoutes, La poudre : Michel Legrand, La femme coupée en morceaux

L'ensemble des morceaux est partiellement disponible en une liste YouTube : Kultur Pop 49, génériques de radio culturelles. Les abonnés connaissent le lien global de Kultur Pop des génériques radio. Les connoisseurs recevront l'archive sous pli discret.



January 3, 2021

Vœux pour 2021 : faire surface // Emerge

TL;PL : meilleurs voeux en images et sons ci-dessous sont à retrouver en lien ci-après
https://www.youtube.com/playlist?list=PL55rYGbaaD4Qq82CRooLnw34xb53w-V46
TL;DR: best wishes in pictures and sounds below in link just above


//// Faire surface (English version below)
C'est un beau mobile pour le 20-21 qui s'annonce : en sculpture, danse, fête, film, peinture et musiques...

Je te souhaite que cette année 2021 se déroule sans accroc (avec Hannibal Smith de l'Agence tous risques)

//// Emerge (version française plus haut)
What a great motive for the upcoming 20-21: dance, sculpture, party, movie, painting and music, etc.
I wish 2021 comes together for you (with Hannibal Smith, A-team)

*Détails // details :
Alexander Calder - Performing sculpture
Yoann Bourgeois - Celui qui tombe
MEUTE - Rooftop Session
Michael Dudok de Wit - The Monk and the Fish
Max Ernst - Paintings
Kyteman Orchestra - PaDaDe (The Jam Sessions)
Dvořák, Anton - Symphony No.9 "From The New World" (par Ferenc Fricsay)
L'agence tous risques // The A-Team - J'aime quand un plan se déroule sans accrocs//I love it when a plan comes together

April 8, 2020

Hurricane Turtle: AA (the Word is a World)

From ancient traditions, the hurricane turtle was the world. Since recent outcrops, Hurricane Turtle is the word. A band with no less than Pierre Cherbero (Chant / Orgue), Seb "iep" Arruti (Trombone), Sylvain Téjérizo (Saxophone), Julien Dubois (Basse), Olivier Léani (Batterie). No more. 

They just released AA. A beginning. A gambling song:


Lyrics are here. They are:


#Song: AA

I used to play cards as a loving game
Cupidon strikes me right on time
In front of me the victime is a lame
He’s gonna fall on the magician that I am

I’m a gambler not a lover 
My rocket looks like the better
My deck is full of red hearts
But you know, he won’t see coming that part

AA got bullets in my hands now
All-In, what you gonna do now
AA got bullets with my aces now
I’m All-In cut it out

(Solo Saxophone)

Did I dream what I just saw there
The mo-fo kept the seven and a two for a full
My aces are just ashamed and he calls it
My finger on a trigger that I pull

AA got bullets in my hands now
All-In, what you gonna do now
AA got bullets with my aces now
I’m All-In cut it out

(Solo Trombone)

AA got bullets in my hands now
All-In, what I’m gonna do now
AA feel just like a fish now
Got myself the sneakiest bad beat!

(Theme)

Take it on, boys

Bonuses:


March 22, 2020

SPOQ: norm ratio sparsity restoration (how I discovered sparsity and stopped worrying about it)

[TL;DR] How I discovered sparsity and stopped worrying about it

This is a journey into sparsity. The story started in 2009, in the South of France, and the nice island of Porquerolles. Here, clear blue water.

France, Porquerolles, plage Notre-Dame    
 
There was a workshop organized in June called Porquerolles 2019: Approximation and optimization in image restoration and reconstruction. A bunch of first class researchers were there: 
Amel Benazza-Benyahia, Jérôme Bolte, Antonin Chambolle, Caroline Chaux, Philippe Ciuciu, Albert Cohen, Patrick Louis Combettes, Claude Comtat, Christine de Mol, Alvaro R. De Pierro, Michel Defrise, Ron DeVore, Jalal Fadili, Mario Figueiredo, Massimo Fornasier, Jacques Froment, Yves Goussard, Gabor Herman, Jérome Idier, Dirk Lorenz, Russell Luke, Francois Malgouyres, Pierre Maréchal, Ali Mohammad-Djafari, Stanley Osher, Valérie Perrier, Jean-Christophe Pesquet, Gabriel Peyré, Aleksandra Pizurica, Andrew Reader, Elena Resmerita, Marc Sigelle, Gabriele Steidl, Marc Teboulle, Joel Trussell, Michael Unser, Dimitri Van de Ville, Isao Yamada
The program was wonderful. The trade-off between sea, science and sun was so easy. At that time, I had been working mostly with signals and images, processing them with sparsity-promoting decompositions: complex orthogonal/biorthogonal dual-tree wavelets with interesting covariance properties able at multichannel/multicomponent image denoising, tighly oversampled complex filter banks. We wanted to have data become sparser through a projection on some vector basis, union of bases or frames. Yet, what sparsity really meant was not fully clear to me. The count measure $\ell_0$ of course, but it is not practically usable for several reasons. 



[TO BE CONTINUED, THEN MATERIALS]

So: SPOQ means, in Swedish, "Svenskt Pediatriskt Ortopediskt Qvalitetsregister" (Swedish Pediatric Orthopaedic Quality register). 

And Mr SPOQ (at BandCamp, and...) is a german electronic music artist (from Aschaffenburg, Germany) as well. In his Cinnamon album, there is a tune called "Distance" (at BandCamp). And mathematically speaking, norms and distances are somewhat related.

But how does all the above relate to our SPOQ (SPOQ Lp-Over-Lq Regularization for Sparse Signal Recovery applied to Mass Spectrometry) algorithm? Later, it is way too late. 


L0 sparsity count index, L1-norm non-smooth convex proxy, L1/L2-norm ratio and Lp/Lq quasinorm/norm ratio smooth non-convex penalties.


Abstract: Underdetermined or ill-posed inverse problems require additional information for sound solutions with tractable optimization algorithms. Sparsity yields consequent heuristics to that matter, with numerous applications in signal restoration, image recovery, or machine learning. Since the 
ℓ0

 count measure is barely tractable, many statistical or learning approaches have invested in computable proxies, such as the ℓ1
 norm. However, the latter does not exhibit the desirable property of scale invariance for sparse data. Generalizing the SOOT Euclidean/Taxicab ℓ1
/
ℓ2
 norm-ratio initially introduced for blind deconvolution, we propose SPOQ, a family of smoothed scale-invariant penalty functions. It consists of a Lipschitz-differentiable surrogate for ℓp
-over-ℓ
q
 quasi-norm/norm ratios with p∈]0,2[
 and q≥2
. This surrogate is embedded into a novel majorize-minimize trust-region approach, generalizing the variable metric forward-backward algorithm. For naturally sparse mass-spectrometry signals, we show that SPOQ significantly outperforms ℓ0
, ℓ1
, Cauchy, Welsch, and \celo penalties on several performance measures. Guidelines on SPOQ hyperparameters tuning are also provided, suggesting simple data-driven choices.





Film-opéra-concert Ariodante

  #Ariodante de #Händel par les Arts Florissants  en opéra-concert-film est #amazing ; trois raisons, deux futiles.  c'est 16 euros, ...