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Collection's Items (Sorted by Submit Date in Descending order): 21 to 40 of 139
Bizzarri, Michal , Lávička, Miroslav
Rational adaptive blends among obstacles in 3D by contour method

In this paper we will continue in investigating ‘contour method’ and its using for the computation of rational parameterizations of canal surfaces without a need of sum of squares (SOS) decomposition. Further approaches for constructing flexible smooth transitions between canal surfaces will...

Bizzarri, Michal , Lávička, Miroslav , Šír, Zbyněk , Vršek, Jan
Hermite interpolation by piecewise polynomial surfaces with polynomial area element

This paper is devoted to the construction of polynomial 2-surfaces which possess a polynomial area element. In particular we study these surfaces in the Euclidean space R^3 (where they are equivalent to the PN surfaces) and in the Minkowski space R^{3,1} (where they provide th...

Bača, Martin , Millerová, Miroslava , Ryan, Joe , Semabičová-Feňovčíková, Andrea
H-antimagické nesouvislé grafy

A simple graph G admits an H-covering if every edge in E(G) belongs to a subgraph of G isomorphic to H. An (a, d)-H-antimagic total labeling of a graph G admitting an H-covering is a bijective function from the vertex set V(G) and the edge set E(G) of the&#...

Semaničová-Feňovčíková, Andrea , Bača, Martin , Lacsáková, Marcela , Millerová, Miroslava , Ryan, Joe
Kola jsou cyklicky antimagická

A simple graph G admits an H-covering if every edge in E(G) belongs to a subgraph of G isomorphic to H. An (a, d)-H-antimagic total labeling of a graph G admitting an H-covering is a bijective function from the vertex set V(G) and the edge set E(G) of the&#...

Abjavay, J. , Kelarev, A.V. , Millerová, Miroslava , Ryan, Joseph
Reesovy pologrupy orientovaných grafů pro klasifikaci dat

Recent research has motivated the investigation of the weights of ideals in semiring constructions based on semigroups. The present paper introduces Rees semigroups of directed graphs. This new construction is a common generalization of Rees matrix semigroups and incidence semigroups of digr...

Volek, Jonáš
Landesman-Lazerovy podmínky pro diferenční rovnice se sublineárními perturbacemi

We study the existence and uniqueness for discrete Neumann and periodic problems. We consider both ordinary and partial difference equations involving sublinear perturbations. All the proofs are based on reformulating these discrete problems as a general singular algebraic system. Firstly, we...

Zeman, Vladimír , Hlaváč, Zdeněk
Mathematical modelling of friction-vibration interactions of nuclear fuel rods

Hajžman, Michal , Bulín, Radek , Svatoš, Petr , Šika, Zbyněk
Usage of the particle swarm optimization in problems of mechanics

Karpov, Alexey , Tsirulnik, Liliya , Krňoul, Zdeněk , Ronzhin, Andrey , Lobanov, Boris , Železný, Miloš
Audio-visual speech asynchrony modeling in a talking head

An audio-visual speech synthesis system with modeling of asynchrony between auditory and visual speech modalities is proposed in the paper. Corpus-based study of real recordings gave us the required data for understanding the problem of modalities asynchrony that is partially caused by ...

Campr, Pavel , Pražák, Aleš , Psutka, Josef V. , Psutka, Josef
Online speaker adaptation of an acoustic model using face recognition

We have proposed and evaluated a novel approach for online speaker adaptation of an acoustic model based on face recognition. Instead of traditionally used audio-based speaker identification we investigated the video modality for the task of speaker detection. A simulated on-lin...

Tihelka, Daniel , Hanzlíček, Zdeněk , Machač, Pavel , Skarnitzl, Radek , Matoušek, Jindřich
On the impact of labialization contexts on unit selection speech synthesis

This paper presents a study on coarticulatory labialization and the significance of its respecting/violation during selection and concatenation of speech units in the unit selection speech synthesis. The aim of this study is to improve the overall speech quality, especially to increase&...

Goubej, Martin , Škarda, Radek , Schlegel, Miloš
Input shaping filters for the control of electrical drive with flexible load

This paper deals with control of flexible mechanical systems. The goal is to modify the input signal in order to minimize the residual vibrations excited during a motion of a system with flexible parts. The filter is designed in the time domain via impulse function analys...

Grůber, Martin , Legát, Milan , Tihelka, Daniel
Corpus recording and checking on the recorded data

This paper describes a part of speech corpus recording procedure. It focuses on the supervision during the corpus recording and the checking on the recorded data. Several modifications of used software are presented.

Grůber, Martin , Tihelka, Daniel , Matoušek, Jindřich
Evaluation of various unit types in the unit selection approach for the Czech language using the Festival system

The present paper focuses on the utilization of concatenative speech synthesis, aiming to determine and compare the influence on the synthesized speech quality when various unit types are used in the unit selection approach. There are several unit types which can be used for t...

Grůber, Martin , Legát, Milan
Single speaker acoustic analysis of czech speech for purposes of emotional speech synthesis

This paper deals with an acoustic analysis of the sets of Czech sentences uttered by single speaker. The data used in this analysis consists of both emotional and neutral sentences. We have been especially interested in some features which are supposed to influence the percept...

Grůber, Martin , Legát, Milan , Ircing, Pavel , Romportl, Jan , Psutka, Josef
Czech senior COMPANION: wizard of Oz data collection and expressive speech corpus recording and annotation

This paper presents part of the data collection efforts undergone within the projectCOMPANIONS whose aim is to develop a set of dialogue systems that will be ableto act as an artificial "companions"' for human users. One of these systems, being developed in Czech lang...

Grůber, Martin , Tihelka, Daniel
Expressive speech synthesis for czech limited domain dialogue system - basic experiments

This paper describes a development of limited domainexpressive speech synthesis for the Czech language. Ourcurrent speech synthesis system is based on unit selection methodsand produces high quality speech in a neutral speaking style. Thiswork focuses on modifications made in the synthesis a...

Grůber, Martin , Matoušek, Jindřich
Listening-test-based annotation of communicative functions for expressive speech synthesis

This paper is focused on the evaluation of listening test thatwas realized with a view to objectively annotate expressive speech recordingsand further develop a limited domain expressive speech synthesissystem. There are two main issues to face in this task. The first matterin issue...

Grůber, Martin
Acoustic analysis of czech expressive recordings from a single speaker in terms of various communicative functions

This paper presents an extensive acoustic analysis of utterances which were recorded by a single Czech female speaker using various expressive speaking styles. The recording of the expressive utterances was performed as a dialogue between a human and a computer on a given topic.&#x...

Grůber, Martin , Hanzlíček, Zdeněk
Czech expressive speech synthesis in limited domain: comparison of unit selection and HMM-based approaches

This paper deals with expressive speech synthesis in a limited domain restricted to conversations between humans and a computer on a given topic. Two different methods (unit selection and HMM-based speech synthesis) were employed to produce expressive synthetic speech, both with the sam...

Collection's Items (Sorted by Submit Date in Descending order): 21 to 40 of 139