32 citations · 133 across the 13 of their papers we have counts for
14 papers
From slides (through tiles) to pixels: an explainability framework for weakly supervised models in pre-clinical pathology
Marco Bertolini, Van-Khoa Le, Jake Pencharz +4
In pre-clinical pathology, there is a paradox between the abundance of raw data (whole slide images from many organs of many individual animals) and the lack of pixel-level slide a…
Explaining, Evaluating and Enhancing Neural Networks' Learned Representations
Marco Bertolini, Djork-Arné Clevert, Floriane Montanari
Most efforts in interpretability in deep learning have focused on (1) extracting explanations of a specific downstream task in relation to the input features and (2) imposing const…
Unsupervised Learning of Group Invariant and Equivariant Representations
Robin Winter, Marco Bertolini, Tuan Le +2
Equivariant neural networks, whose hidden features transform according to representations of a group G acting on the data, exhibit training efficiency and an improved generalisatio…
Fixed points of (0,2) Landau-Ginzburg renormalization group flows and the chiral algebra
Marco Bertolini, Ilarion V. Melnikov, M. Ronen Plesser
We discuss renormalization group flows in two-dimensional quantum field theories with (0,2) supersymmetry. We focus on theories with UV described by a Landau-Ginzburg Lagrangian an…
Parameterized Hypercomplex Graph Neural Networks for Graph Classification
Tuan Le, Marco Bertolini, Frank Noé +1
Despite recent advances in representation learning in hypercomplex (HC) space, this subject is still vastly unexplored in the context of graphs. Motivated by the complex and quater…
A (0,2) mirror duality
Marco Bertolini, M. Ronen Plesser
We construct a class of exactly solved (0,2) heterotic compactifications, similar to the (2,2) models constructed by Gepner. We identify these as special points in moduli spaces co…
Testing the (0,2) mirror map
Marco Bertolini
We test a proposed mirror map at the level of correlators for linear models describing the (0,2) moduli space of superconformal field theories with a (2,2) locus associated to Cala…
Aspects of (2,2) and (0,2) hybrid models
Marco Bertolini, Mauricio Romo
In this work we study the topological rings of two dimensional (2,2) and (0,2) hybrid models. In particular, we use localization to derive a formula for the correlators in both cas…
(0,2) hybrid models
Marco Bertolini, M. Ronen Plesser
We introduce a class of (0,2) superconformal field theories based on hybrid geometries, generalizing various known constructions. We develop techniques for the computation of the c…
On the global symmetries of 6D superconformal field theories
Marco Bertolini, Peter R. Merkx, David R. Morrison
We study global symmetry groups of six-dimensional superconformal field theories (SCFTs). In the Coulomb branch we use field theoretical arguments to predict an upper bound for the…
Worldsheet instantons and (0,2) linear models
Marco Bertolini, M. Ronen Plesser
We study the stability of heterotic compactifications described by (0,2) gauged linear sigma models with respect to worldsheet instanton corrections to the space-time superpotentia…
Accidents in (0,2) Landau-Ginzburg theories
Marco Bertolini, Ilarion V. Melnikov, M. Ronen Plesser
We study the role of accidental symmetries in two-dimensional (0,2) superconformal field theories obtained by RG flow from (0,2) Landau-Ginzburg theories. These accidental symmetri…
Massless spectrum for hybrids CFTs
Marco Bertolini, Ilarion V. Melnikov, M. Ronen Plesser
We describe a class of theories obtained by fibering a Landau-Ginburg orbifold over a compact Kaehler base. While such theories are often described as phases of some GLSM, our desc…
Hybrid conformal field theories
Marco Bertolini, Ilarion V. Melnikov, M. Ronen Plesser
We describe a class of (2,2) superconformal field theories obtained by fibering a Landau-Ginzburg orbifold CFT over a compact Kaehler base manifold. While such models are naturally…