2023 Days on Diffraction (DD)

Identifying the microscopic processes limiting conductivity is essential for understanding correlated quantum materials. In twisted bilayer graphene, metallic resistivity follows ρ ~ Tα with widely varying α, fueling competing interpretations from phonon-limited transport and umklapp scattering to strange metallicity and heavy-fermion renormalization. Here, we use terahertz excitation to selectively heat electrons while keeping the lattice cold, separating ...

Added: September 20, 2026

Some rigidity results for static three-manifolds with boundary and positive scalar curvature

Medvedev V., Annals of Global Analysis and Geometry 2026 Vol. 70 No. 2 P. 8–23

This paper studies three-dimensional compact static manifolds with boundary and positive scalar curvature. We prove that, under a suitable bound on the Ricci curvature, the orientable quotient of the Nariai static manifold with boundary is the only such manifold with connected boundary, provided that the zero-level set of the potential is connected and does not intersect ...

Added: September 19, 2026

Improving the Accuracy of Automatic Wildlife Detection in Nature Reserves Using Infrared Imaging

Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2026 Vol. 36 No. 2 P. 323–334

In this paper, an improved approach for automatic wildlife detection in natural environments based on the integration of a neural network architecture with a two-stream attention mechanism and a novel preclassification step based on infrared data has been presented. The proposed method addresses one of the key challenges in environmental monitoring: the need for scalable ...

Added: September 19, 2026

IDAP++: Advancing Divergence-Aware Pruning with Joint Filter and Layer Optimization

Aleksei Samarin, Nazarenko A., Kotenko E. et al., Proceedings of the ACM on Management of Data, USA 2026 Vol. 4 No. 1 P. 1–28

Modern knowledge and large volumes of data are increasingly encoded within neural networks, making the task of simplifying their structures and reducing the number of parameters especially relevant, both to improve efficiency and to facilitate deployment in resource-constrained environments. This paper presents a novel approach to neural network compression that addresses redundancy at both the ...

Added: September 19, 2026

Automated Feature Engineering-Based Approach for Micrococci Microscopic Image Classification and Taxonomic Characteristics Determination

Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2025 Vol. 35 No. 2 P. 148–158

This paper describes our research on creating classifiers for microbial images (micrococci microscopy images) obtained from pictures of unfixed microscopic scenes. In our work, we propose an AutoML approach based on the automatic generation and analysis of the feature space for constructing the most optimal descriptors of microorganism images for subsequent classification. This makes it ...

Added: September 19, 2026

Improvement in Microbial Classification Quality Using Synthetic Microscopic Images Generated by Large Visual-Language Models

Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2026 Vol. 36 No. 2 P. 302–312

The lack of annotated microscopic datasets remains a major obstacle to training robust deep learning models for microbial classification. In this paper, a novel data augmentation pipeline that uses visual–linguistic large-scale models to generate synthetic microscopic images of six different bacterial and nonbacterial classes has been proposed. Synthetic samples have gradually been added to the ...

Added: September 19, 2026

Advances in Neural Computation, Machine Learning, and Cognitive Research IX

Springer, Cham, 2026.

computer vision ...

Added: September 19, 2026

Proceedings of 18th International Conference on Machine Learning and Computing

Springer, Cham, 2026.

Added: September 19, 2026

Proceedings of the 35th Conference of Open Innovations Association FRUCT

FRUCT Oy, 2024.

Added: September 19, 2026

Proceedings of the 36th Conference of Open Innovations Association FRUCT

FRUCT Oy, 2024.

Added: September 19, 2026

Proceedings of the 37th Conference of Open Innovations Association FRUCT

FRUCT Oy, 2025.

Added: September 19, 2026

Proceedings of the 39th Conference of Open Innovations Association FRUCT

FRUCT Oy, 2026.

Added: September 19, 2026

Flow-Guided Neural Pruning: Signal-Flow Framework for Multi-Architecture Model Compression

Aleksei Samarin, Nazarenko A., Kotenko E. et al., Machine Learning and Knowledge Extraction 2026 Vol. 8 No. 8 P. 1–26

This paper presents a novel method for pruning deep neural networks based on the concept of flow, derived from the continuous modeling of signal propagation across layers. We derive flow functions for fully connected, convolutional, and self-attention architectures, and we propose a new iterative pruning algorithm, Iterative Flow-Aware Pruning (IFAP), that leverages these measures to ...

Added: September 19, 2026

A Bicriteria Fish War Game with Asymmetric Environmental Concern

Kuzyutin D., Smirnova N., Veselkov A., Bulletin of the South Ural State University, Series: Mathematical Modelling, Programming and Computer Software 2026 Vol. 19 No. 3 P. 40–49

We consider spatial dynamic fishery management problem taking into account the resource migration process between an open-access fishing area and no-take marine protected area. The introduced extension of a standard single-criterion fish war game implies that each player aims to maximize simultaneously two performance criteria which present an economic benefit and an environmental conservation goal ...

Added: September 18, 2026

Drift Towards Isotropization during the 3D Hydrodynamic Turbulence Onset

Копьев А., JETP Letters 2026 Vol. 123 No. 5 P. 310–316

The incompressible three-dimensional Euler equations develop very thin pancake-like regions of exponen tially increasing vorticity. The characteristic thickness of such regions decreases exponentially with time, while the other two dimensions do not change considerably, making the flow near each pancake strongly anisotropic. The pancakes emerge in increasing number with time, which may enhance the anisotropy ...

Added: September 18, 2026

Четырехмерные гиперэллиптические многообразия, определяемые векторными раскрасками простых многогранников

Ероховец Николай Юрьевич, Математический сборник 2026 Т. 217 № 5 С. 45–89

Toric topology assigns to each simple convex n-polytope P with m facets an n-dimensional real moment-angle manifold RZP with a canonical action of Zm2=(Z/2Z)m. We consider (not necessarily free) actions of subgroups H⊂Zm2 on RZP. The orbit space N(P,H)=RZP/H carries an action of Zm2/H. For general n we introduce the notion of Hamiltonian C(n,k)-subcomplex in the boundary of an ...

Added: September 17, 2026

Explicit bases for Riemann-Roch spaces on elliptic curves and their application in constructing various elliptic code families

Kuninets A., Malygina E., Cryptography and Communications 2026

In this paper, we determine explicit bases for Riemann–Roch spaces associated with various families of elliptic codes. We establish the feasibility and provide exact algorithms for constructing bases of Riemann–Roch spaces corresponding to arbitrary divisors on elliptic curves, including the non-effective case. These results are subsequently applied to derive bases for quasi-cyclic elliptic codes and ...

Added: September 17, 2026

Structural properties of cyanobiphenyl nematics doped with gold nanoparticles: The result of MD simulations

Захаров А. В., Düven H., Capar M. I., Physics Letters A 2026 No. 576 Article 131388

Molecular dynamics simulations were carried out to study the structural properties of nematic pentyl cyanobiphenyl (5CB) and pentyloxy cyanobiphenyl (5OCB) liquid crystals (LCs) doped with gold nanoparti cles (GNPs) of different numbers, shapes and sizes. The spherical GNPs of two different radii and rod-like have been doped in 5CB and 5OCB cyanobiphenyl liquid crystals. In order to describe ...

Added: September 17, 2026

Kink oscillation of a system of two braided magnetic flux tubes

Ruderman M. S., N. S. Petrukhin, Monthly Notices of the Royal Astronomical Society 2026 Vol. 549 No. 4 Article stag783

For the first time we study kink oscillations of braided coronal magnetic loops. We use the simplest model of a braided loop that consists just of two identical curved magnetic tubes. It is assumed that the plasma density is constant inside the tubes, and also in the surrounding plasma. To describe the kink oscillations we ...

Added: July 12, 2026

Non-linear damped standing slow waves in cooling coronal magnetic loops

Ruderman M. S., N. S. Petrukhin, Kataeva L. Y., Monthly Notices of the Royal Astronomical Society 2025 Vol. 542 No. 2 P. 1076–1087

We study standing non-linear sausage waves in coronal loops with the plasma temperature varying with time. In our analysis we use the simplest model of a coronal loop in the form of a straight magnetic tube with a circular cross-section. We also assume that the plasma-beta is low. This enables us to neglect the magnetic ...

Added: August 21, 2025

Nonlinear Propagating Slow Waves in Cooling Coronal Magnetic Loops

Ruderman M. S., N. S. Petrukhin, Kataeva L. Y., Solar Physics 2025 Vol. 300 Article 85

We study the propagation of slow magnetosonic waves in coronal magnetic loops. In our study we take nonlinearity and loop cooling into account. We use the small beta approximation and neglect the effect of magnetic field perturbation on the wave propagation. In accordance with this we assume that the tube cross-section does not change. We also neglect the equilibrium ...

Added: June 20, 2025

Modeling of the Radiation Situation on the Earth during Solar Proton Events in the Process of Geomagnetic Reversal

Levashov N. N., Tsareva O. O., V. Yu. Popov et al., Cosmic Research 2025 Vol. 60 No. 1 P. 40–46

The radiation from galactic and solar cosmic rays as they pass through the modern and rarefied (as a result of multiple reversals) atmosphere during solar proton events and at the time of geomagnetic reversal is studied. We suppose that, during the reversal process, the geomagnetic field weakens and takes on an axisymmetric quadrupole configuration. It is shown that, ...

Added: April 30, 2025

Composition, Structure, and Thermal Properties of Potassium Acetate Hydrates

Kalle P., Stanislav I. Bezzubov, Latipov E. et al., Inorganic Chemistry 2025 Vol. 64 No. 4 P. 2146–2153

The crystal structure determines the properties of compounds and materials, although one can find simple yet industrially relevant compounds such as potassium acetate (KOAc) and its hydrates for which the properties and even the composition still remain misunderstood, owing to the lack of structural data. In this study, the crystal structures of KOAc polymorphs and ...

Added: February 25, 2025

Matrix of Correlations between the Gradients of the Phase of the Light Wave as a Way to Measure the Principal Parameters of Turbulence

Bogachev V. A., I. V. Kolokolov, V. V. Lebedev et al., JETP Letters 2024 Vol. 120 No. 8 P. 573–579

The diffraction of a light wave by fluctuations in the refractive index in a turbulent medium leads to its distortions. Their analysis allows one to extract the main parameters of turbulence. In this paper, we propose a new method based on measurements of the correlation function of the gradients of the light wave phase, which allows us ...

Added: December 7, 2024