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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 149
Jiřinec, Jakub , Rot, David , Šenkýř, Vojtěch
Measurement of indoor environment parameters in a classroom equipped with heat recovery unit

We demonstrate several ways to use morphological word analogies to examine the representation of complex words in semantic vector spaces. We present a set of morphological relations, each of which can be used to generate many word analogies. 1. We show that the difference-vectors&#...

Gabriel, František , Kursová, Lucie
Typové zařazení hradu Skála u Přeštic

Background: Protected health information burned in pixel data is not indicated for various reasons in DICOM. It complicates the secondary use of such data. In recent years, there have been several attempts to anonymize or de-identify DICOM files. Existing approaches have different const...

Hromádka, Aleš , Jiřičková, Jana , Martínek, Zbyněk , Sirový, Martin
Operation assessment of cogeneration power plant by thermodynamic model

SfePy (simple finite elements in Python) is a software for solving various kinds of problems described by partial differential equations in one, two, or three spatial dimensions by the finite element method. Its source code is mostly (85%) Python and relies on fast vectorized ...

Včelák, Petr , Kryl, Martin , Kratochvíl, Michal , Klečková, Jana
Identification and classification of DICOM files with burned-in text content

The ability to represent the meaning of words is one of the core parts of natural language understanding (NLU), with applications ranging across machine translation, summarization, question answering, information retrieval, etc. The need for reasoning in multilingual contexts and transferring kno...

Hromádková, Věra , Kolingerová, Ivana , Vaněček, Petr
A unified curvature-driven approach for weathering and hydraulic erosion simulation on triangular meshes

The significant properties of the maximum likelihood (ML) estimate are consistency, normality, and efficiency. While it has been proven that these properties are valid when the sample size approaches infinity, the behavior of an ML estimator when working with small sample sizes is ...

Martínek, Jiří , Lenc, Ladislav , Král, Pavel
Training Strategies for OCR Systems for Historical Documents

Random Sample Consensus is a powerful paradigm that was successfully applied in various contexts, including Location Determination Problem, fundamental matrix estimation and global 3D surface registration, where many previously proposed algorithms can be interpreted as a particular implementation of t...

Hložek, Josef , Profantová, Naďa , Menšík, Petr
Železná jehlice z hradiště Kněží hora u Katovic (okres Strakonice) a obtížně datovatelné nálezy jehlic z výšinných sídlišť v širších souvislostech

The paper deals with modelling of acoustic waves which propagate in inviscid fluids interacting with perforated elastic plates. The plate can be replaced by an interface on which transmission conditions are derived by homogenization of a problem describing vibroacoustic fluid-structure interactio...

Cooper, Jacob W. , Kaiser, Tomáš , Král', Daniel , Noel, Jonathan A.
Weak regularity and finitely forcible graph limits

Graphons are analytic objects representing limits of convergent sequences of graphs. Lovász and Szegedy conjectured that every finitely forcible graphon, i.e. any graphon determined by finitely many subgraph densities, has a simple structure. In particular, one of their conjectures would imply&#x...

Hoffmann-Ostenhof, Arthur , Kaiser, Tomáš , Ozeki, Kenta
Decomposing planar cubic graphs

The 3‐Decomposition Conjecture states that every connected cubic graph can be decomposed into a spanning tree, a 2‐regular subgraph and a matching. We show that this conjecture holds for the class of connected plane cubic graphs.

Basić, Nino , Estélyi, István , Škrekovski, Riste , Tratnik, Niko
On the Clar Number of Benzenoid Graphs

A Clar set of a benzenoid graph B is a maximum set of independent alternating hexagons over all perfect matchings of B. The Clar number of B, denoted by Cl(B), is the number of hexagons in a Clar set for B. In this paper, we first prove some results on...

Chlebicka, Iwona , Drábek, Pavel , Kalamajska, Agnieszka
Caccioppoli-type estimates and Hardy-type inequalities derived from weighted p-harmonic problems

We obtain Caccioppoli-type estimates for nontrivial and nonnegative solutions to anticoercive partial differential inequalities of elliptic type involving weighted p-Laplacian. Using Caccioppoli-type estimates, we obtain several variants of Hardy-type inequalities in weighted Sobolev spaces.

Bizzarri, Michal , Lávička, Miroslav , Vršek, Jan
Linear computational approach to interpolations with polynomial Minkowski Pythagorean hodograph curves

Methods using Pythagorean hodographs both in Euclidean plane and Minkowski space are often used in geometric modelling when necessary to solve the problem of rationality of offsets of planar domains. A main justification for studying and formulating approximation and interpolation algorithms ...

Bobkov, Vladimír , Drábek, Pavel , Ilyasov, Yavdat
On partially free boundary solutions for elliptic problems with non-lipschitz nonlinearities

We show that the elliptic equation with non-Lipschitz right-hand side, considered on a smooth star-shaped domain Ω subject to zero Dirichlet boundary conditions, might possess a nonnegative ground state solution which violates Hopf’s maximum principle only on a nonempty subset Γ of the&...

Hynčík, Luděk , Bońkowski, Tomasz
Helmet to head coupling by multi-body system

Bobkov, Vladimír
Asymptotic relation for zeros of cross-product of Bessel functions and applications

Let $a_{\nu,k}$ be the $k$-th positive zero of the cross-product of Bessel functions $J_\nu(R z) Y_\nu(z) - J_\nu(z) Y_\nu(R z)$, where $\nu\geq 0$ and $R>1$. We derive an initial value problem for a first order differential equation whose solution $\alpha(x)...

Holečková, Irena , Kletečka, Jakub , Štěpánek, David , Žídek, Slavomír , Bludovský, David , Pouska, Jan , Mautner, Pavel , Přibáň, Vladimír
Cognitive impairment measured by event-related potentials during early and late postoperative period following intravenous or inhalation anaesthesia

This study investigated modification in cognitive function following inhalation (IA) and total intravenous (TIVA) anaesthesia measured using auditory ERPs (Event Related Potentials). Methods : Auditory ERPs examination with N1, P3a and P3b component registration was carried out one day before sur...

Santiago, J.A. , Fernández-Martínez, I. , Kozák, Tomáš , Čapek, Jiří , Wennberg, A. , Molina-Aldareguia, J.M. , Bellido-González, V. , González-Arrabal, R. , Monclús, M.A.
The influence of positive pulses on HiPIMS deposition of hard DLC coatings

Diamond-like Carbon (DLC) coatings were deposited by a novel HiPIMS method that incorporates positive voltage pulses at the end of the conventional HiPIMS discharge. Different positive voltage amplitudes were used to evaluate the effect of this operation mode on the discharge process an...

Jurčík, Adam , Bednář, David , Byška, Jan , Marques, Sérgio Manuel , Furmanová, Katarína , Daniel, Lukáš , Kokkonen, Piia Pauliina , Brezovský, Jan , Strnad, Ondřej , Štourač, Jan , Pavelka, Antonín , Maňák, Martin , Damborský, Jiří , Kozlíková, Barbora
CAVER Analyst 2.0: Analysis and Visualization of Channels and Tunnels in Protein Structures and Molecular Dynamics Trajectories

Motivation: Studying the transport paths of ligands, solvents, or ions in transmembrane proteins and proteins with buried binding sites is fundamental to the understanding of their biological function. A detailed analysis of the structural features influencing the transport paths is also imp...

Marek, Patrice , Vávra, František
Comparison of Home Team Advantage in English and Spanish Football Leagues

Home team advantage in sports is widely analysed phenomenon. This paper builds on results of recent research that -- instead of points gained -- uses goals scored and conceded to describe home team advantage. Using this approach, the home team advantage is random variable that...

Šedivá, Blanka , Marek, Patrice
Stability analysis of optimal mean-variance portfolio due to covariance estimation

The objective of this paper is to study the stability of the mean-variance portfolio optimization. The results of the mean-variance optimal selection problem are very sensitive to the model parameters (portfolio calibration window and frequency of portfolio rebalancing). There are presented ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 149