Tootfinder

🇺🇦 #NowPlaying on KEXP's #PositiveVibrations
Winston Jarrett:
🎵 Must Be a Revolution
#WinstonJarrett
https://mahamilaprod.bandcamp.com/album/there-must-be-a-revolution-winston-jarrett-and-the-righteous-flames-rework
https://open.spotify.com/track/6dol1ThXt4uzZUlPjsuYa0

🇺🇦 #NowPlaying on BBCRadio3's #SundayMorning
Enrique Granados, Manuel Barrueco & Manuel Barrueco:
🎵 12 Danzas españolas (No 1, 'Galante')
#EnriqueGranados #ManuelBarrueco
https://open.spotify.com/track/0mtb8zzckXSjcU8LHEcyne

This https://arxiv.org/abs/2502.21249 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

A relax-fix-and-exclude algorithm for an MINLP problem with multilinear interpolations
This paper introduces a novel algorithm for Mixed-Integer Nonlinear Programming (MINLP) problems with multilinear interpolations of look-up tables. These problems arise when objective or constraints contain black-box functions only known at a finite set of evaluations on a predefined grid. We derive a piecewise-linear relaxation for the multilinear constraints resulting from the multilinear interpolations used to approximate the true functions. Supported by the fact that our proposed relaxation…

🇺🇦 #NowPlaying on BBCRadio3's #RoundMidnight
Ingrid Laubrock, Fay Victor & Mariel Robert:
🎵 Koan 11
#IngridLaubrock #FayVictor #MarielRobert
https://open.spotify.com/track/45mOnlFnFACAe4CkGdCYm2

Complexity and Manipulation of International Kidney Exchange Programmes with Country-Specific Parameterss
Rachael Colley, David Manlove, Daniel Paulusma, Mengxiao Zhang
https://arxiv.org/abs/2506.04092

Complexity and Manipulation of International Kidney Exchange Programmes with Country-Specific Parameterss
Kidney Exchange Programmes (KEPs) facilitate the exchange of kidneys, and larger pools of recipient-donor pairs tend to yield proportionally more transplants, leading to the proposal of international KEPs (IKEPs). However, as studied by \citet{mincu2021ip}, practical limitations must be considered in IKEPs to ensure that countries remain willing to participate. Thus, we study IKEPs with country-specific parameters, represented by a tuple $Γ$, restricting the selected transplants to be feasible…

Bounded geometry version of property A
V. Manuilov
https://arxiv.org/abs/2506.00890 https://arxiv.org/pdf/2506.00890

Bounded geometry version of property A
For uniformly dicrete metric spaces without bounded geometry we suggest a modified version of property A based on metrics of bounded geometry greater than the given metric. We show that this version still implies coarse embeddability in Hilbert spaces, and that some examples of non-property A spaces of unbounded geometry satisfy this version. We also relate this version of property A to our version of uniform Roe algebras for spaces without bounded geometry and introduce an appropriate equivale…

Trainable dynamical masking for readout-free optical computing
S. Bogdanov, E. Manuylovich, S. K. Turitsyn
https://arxiv.org/abs/2505.23464 https://…

Trainable dynamical masking for readout-free optical computing
Nonlinear systems, transforming an input signal into a high-dimensional output feature space, can be used for non-conventional computing. This approach, however, requires a change of system parameters during training rather than coefficients in a software program. We propose here to use available off-the-shelf high-speed optical communication devices and technologies to implement a trainable dynamical mask in addition to or even instead of the traditional readout layer for extreme learning mach…