Charles University Faculties (theses)

Charles University Faculties (theses) 191,130 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
Slovak Ladies' Chamber Orchestra (1969-2013): A music historical probe
Pisárová, Pavla ; Havelková, Tereza (advisor) ; Vacková Gillies, Barbora (referee)
The bachelor thesis is the first in-depth exploration of the hitherto unexamined activities of the first Slovak Ladies' Chamber Orchestra (1969-2013). The thesis delves into the personal stories of the female musicians, the orchestra's activities, and its evolution over the years within the framework of musical life and gender politics in Slovakia. This contextualization serves to elucidate the orchestra's activities. The research relies on interviews conducted with Elena Šarayová-Kováčová (1943), the first professional Slovak female conductor and founder of the orchestra, ten members of the orchestra, and information extracted from the surviving chronicles. The study adopts the methodology of oral history and draws on a feminist-informed historiography of contemporary music history. Although they were professional musicians who had studied their instruments at conservatories and earned a living in symphony orchestras, the Ladies' Chamber Orchestra never became a full-time occupation for them and was not always perceived as a professional orchestra. Nevertheless, my research indicates a significant improvement in the status of women in classical music during their tenure. The thesis contributes to the ongoing research regarding the involvement and role of women in musical life in Slovakia,...
The internal and external variation in speaker assessments based on speech performance
Nagyová, Eliška ; Volín, Jan (advisor) ; Chládková, Kateřina (referee)
This bachelor thesis deals with the internal and external variation in speaker's assessments based on speech performance. Using the material of two poems ("Portrét" by Karel Toman and "Píseň zhýralého jinocha" by František Gellner), the variability in the evaluation of the recordings of 32 speakers (16 women and 16 men) was studied. Their performance was rated by 30 listeners on a seven-point scale based on their impression of the overall recitation. The general nature of the perception test instructions allowed us to observe which factors may play an important role in the perception of the overall speech performance. The results point, among other things, to the possible influence of the text of the poems on respondents' assessments. This study serves as a basis for further in-depth research in the area of speech assessment. Keywords: internal variation, external variation, voice perception, voice attractiveness, voice measurement, voice assessment, recitation
Narrating life. Ethical value of the narrative process in the context of totalitarianism
Šilhán, Petr ; Šebek, Josef (advisor) ; Králíková, Andrea (referee)
This bachelor's thesis will analyse selected novels published in the 1970s (Life is Elsewhere, The Ascension of Lojzek Lapáček from Silesian Ostrava and The Questionnaire or A Prayer for a Town and a Friend) using the methodology of narrative hermeneutics. Specifically, it will address the question of how the life story of an individual whose horizon of possibilities is narrowly limited by the political situation can be meaningfully retold and what ethical value such a complex narrative can have in a society dominated by totalitarian narratives. The theoretical section will describe the framework of narrative hermeneutics and the narrative ethics that emerges from it. The interpretive part will examine how individual authors reflect on the ethical potential of storytelling in their works. Key words: narrative hermeneutice, ethical potential of storytelling, narration of life, totalitarian regimes, narrative
Multi-agent trading environment for training robust reinforcement learning agents
Mikuláš, Pavel ; Pilát, Martin (advisor) ; Neruda, Roman (referee)
This thesis presents a comprehensive study of the application of reinforcement learning to algorithmic trading. The main focus of this thesis is on the generalization properties of various reinforcement learning algorithms, both from the data perspective and the applicability of the trained agents to real algorithmic trading. To that end, we develop a training environment taking into account various real-world factors influencing the performance of algorithmic trading strategies. We also experiment with the recurrent replay buffer extension of the DQN algorithm, known as R2D2, being, to the best of our knowledge, the first to employ this algorithm for the task of algorithmic trading. Each algorithm is evaluated against traditional algorithmic trading strategies, including the buy-and-hold strategy, to demonstrate the superior performance of the reinforcement learning strategies. On top of that we also provide a study on how the amount of training data and transaction costs influence the generalization of the algorithms to unseen market conditions. We show how transaction costs significantly increase the task complexity and that the R2D2 algorithm overperforms the commonly used baselines, as well as other state-of-the-art reinforcement learning algorithms in this task. 1
The Image of the Ottoman Empire and Turkey in Czech periodicals Národní listy and Čech in the early 1920s
Šťastník, Michael ; Malečková, Jitka (advisor) ; Kaas, Filip (referee)
This bachelor՚s thesis explores the portrayal of Turkey in Czech media, specifically in the newspapers Národní listy and Čech between 1922 and 1924. During this period, Turkey underwent significant political and social transformations, transitioning from the demise of the Ottoman Empire to the establishment of the modern Turkish Republic. The aim of this thesis is to examine how these events were reflected in the Czech press. Národní listy with its more liberal orientation and Čech, targeting to a Catholic and conservative readership, offer distinct perspectives on Turkish affairs. The thesis analyzes how these newspapers covered key events such as the Greco-Turkish War, the Lausanne Conference, and Mustafa Kemal՚s political ascent. It also compares the representation of these events in the Czech press with Turkish sources of that period, specifically the book Gazi Mustafa Kemal by Cahit Bürhan. Employing media content analysis, this work systematically examines the content of selected newspapers to identify potential patterns of bias or objectivity.
Representation of Gay and Bisexual Women in Video Games and Players' Attitudes: An Empirical Study
Petrova, Alexandra ; Kolek, Lukáš (advisor) ; Pešková, Klára (referee)
The aim of this empirical study was to examine how players' explicit and implicit attitudes towards content depicted in a video game influence their interaction with the game and their game experience. In order to do so, this study examined a particular case of a video game representing gay and bisexual women. The primary aim was to investigate how players' game engagement is influenced by the topic portrayed and by their attitudes towards gay and bisexual women. The secondary aim was to explore the players' implicit and explicit attitude change towards gay and bisexual women as a result of playing the game. This study used an experimental and a control condition, with two versions of one game differing only in the identity of one character - in the experimental version she is a lesbian and in the control version a heterosexual woman. The modification of the game was a part of the thesis. Participants' implicit and explicit pretest and posttest attitudes were measured, and their game engagement was measured in the posttest. Results showed lower game engagement in the experimental compared to the control group, however, no link between initial attitudes and game engagement was found. There was no significant explicit or implicit attitude change. This study brings new data to the areas of game research...
Two-phase scheduling with unknown speeds
Minařík, Josef ; Sgall, Jiří (advisor) ; Eberle, Franziska (referee)
Speed-robust scheduling is a two-stage scheduling problem with a makespan objective. We are given processing times of n jobs, number of machines m and number of bags b. We have to group the jobs into bags that are to be scheduled on machines of currently unknown speed. The goal is to minimize the worst-case ratio of our makespan and makespan of an adversary who does not have to create bags and assigns jobs directly to machines. So far, the problem has been mostly studied for b = m. We generalize previously known results for infinitesimal jobs (called sand) and prove that the best achievable competitive ratio is mb mb−(m−1)b . We present an algorithm for the case of identical jobs (called bricks) with competitive ratio at most 1.6 in the case b = m, improving the best previously known value of 1.8. We introduce a new category called p-pebbles, those are jobs with processing time at most p times the average load of a machine. Pebbles are half way between sand and the general case (called rocks). We present an algorithm for pebbles that has better robustness factor than the best known algorithm for rocks for small values of p (for p less than 2 − e e−1 in the case b = m). 1
Medea by Pavel Vranicky. A musical travesty
Kadlec, Daniel ; Niubo, Marc (advisor) ; Gabrielová, Jarmila (referee)
The bachelor thesis focuses on Medea, a stage work by Paul Wranitzky (1756-1808). Based on the study of historical musical sources and drawing on scientific literature it offers a detailed image of this travesty (or parody) of Georg Anton Benda's (1722-1795) melodrama Medea. The thesis describes the parameters of the work, compares the work with its model and puts it into the context of the contemporary Viennese so called "popular" theater. It also explores the influence which empress Marie Therese of Naples and Sicily had on its creation. The empress acted as a patron and collector of music and she fostered an intensive musical culture at her court. The analytical part deals with the text and the music of Medea and the techniques used therein to achieve parodic and comical effects.

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