La croissance exponentielle et les progrès de la technologie ont rendu très pratique le partage de données visuelles, d'images et de données vidéo par le biais d’une vaste prépondérance de platesformes disponibles. Avec le développement rapide des technologies Internet et multimédia, l’efficacité de la gestion et du stockage, la rapidité de transmission et de partage, l'analyse en temps réel et le traitement des ressources multimédias numériques sont progressivement devenus un élément indispensable du travail et de la vie de nombreuses personnes. Sans aucun doute, une telle croissance technologique a rendu le forgeage de données visuelles relativement facile et réaliste sans laisser de traces évidentes. L'abus de ces données falsifiées peut tromper le public et répandre la désinformation parmi les masses. Compte tenu des faits mentionnés ci-dessus, la criminalistique des images doit être utilisée pour authentifier et maintenir l'intégrité des données visuelles. Pour cela, nous proposons une technique de détection passive de falsification d'images basée sur les incohérences de texture et de bruit introduites dans une image du fait de l'opération de falsification. De plus, le réseau de détection de falsification d'images (IFD-Net) proposé utilise une architecture basée sur un réseau de neurones à convolution (CNN) pour classer les images comme falsifiées ou vierges. Les motifs résiduels de texture et de bruit sont extraits des images à l'aide du motif binaire local (LBP) et du modèle Noiseprint. Les images classées comme forgées sont ensuite utilisées pour mener des expériences afin d'analyser les difficultés de localisation des pièces forgées dans ces images à l'aide de différents modèles de segmentation d'apprentissage en profondeur. Les résultats expérimentaux montrent que l'IFD-Net fonctionne comme les autres méthodes de détection de falsification d'images sur l'ensemble de données CASIA v2.0. Les résultats discutent également des raisons des difficultés de segmentation des régions forgées dans les images du jeu de données CASIA v2.0. / The exponential growth and advancement of technology have made it quite convenient for people to share visual data, imagery, and video data through a vast preponderance of available platforms. With the rapid development of Internet and multimedia technologies, performing efficient storage and management, fast transmission and sharing, real-time analysis, and processing of digital media resources has gradually become an indispensable part of many people’s work and life. Undoubtedly such technological growth has made forging visual data relatively easy and realistic without leaving any obvious visual clues. Abuse of such tampered data can deceive the public and spread misinformation amongst the masses. Considering the facts mentioned above, image forensics must be used to authenticate and maintain the integrity of visual data. For this purpose, we propose a passive image forgery detection technique based on textural and noise inconsistencies introduced in an image because of the tampering operation. Moreover, the proposed Image Forgery Detection Network (IFD-Net) uses a Convolution Neural Network (CNN) based architecture to classify the images as forged or pristine. The textural and noise residual patterns are extracted from the images using Local Binary Pattern (LBP) and the Noiseprint model. The images classified as forged are then utilized to conduct experiments to analyze the difficulties in localizing the forged parts in these images using different deep learning segmentation models. Experimental results show that both the IFD-Net perform like other image forgery detection methods on the CASIA v2.0 dataset. The results also discuss the reasons behind the difficulties in segmenting the forged regions in the images of the CASIA v2.0 dataset.

Diploma thesis is focused on the administration of the printed journalism by Ministry of Information (from October 1948 Ministry of Information and Education). Ministry was responsible for administration of the printed journalism from May 1945 to January 1953, when was dissolved. Thesis is divided into seven main chapters. The first one sets the topic into Czechoslovak history in years 1945-1953. The second section is focused on the restoration of Czechoslovak Republic during Second World War via perspective of legal and constitutional development. The third chapter characterizes the authority of the government and the ministry in the years 1945-1953. The fourth part deals with administration of the printed journalism before May 1945, which is structured according to historical periods. Period view of the printed journalism in observed period is topic of the fifth chapter. The sixth section is focused on personality of the Minister Václav Kopecký. The last chapter deals with own topic and it is divided into two subchapters (era of years 1945-1948 and 1948-1953). Both of parts contains description of structure of main printed newspapers and magazines, the legislative determination of the printed journalism and the establishment, changes in the internal structure of ministry and the dissolution of...

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Im Jahr 2019 haben deutsche Universitäten das Jubiläum einer 50-jährigen Informatikausbildung gefeiert. Die TU Dresden blickt dabei seit 1969 als erste Universität auf Erfahrungen in beiden deutschen Staaten zurück. Während die historische Entwicklung in der Informatikausbildung für die BRD gut dokumentiert ist, besteht in der Dokumentation durch das Informatik Spektrum für die DDR eine Lücke. Die Informatikausbildung in der DDR befand sich seit ihren Anfängen auf Augenhöhe mit den Entwicklungen in der BRD. Im vorliegenden Artikel wird die historische Entwicklung des Informatik-Studienganges an der TU Dresden unter Berücksichtigung der Entstehungs- und Entwicklungsphase in der DDR und der Wendezeit bis zur heutigen Fakultät Informatik dargestellt. Aus Anlass des 50-Jahre-Jubiläums im Jahr 2019 wurde die historische Entwicklung in einem webbasierten Zeitstrahl dokumentiert und mit Interviews von Zeitzeugen ergänzt. Dabei lag der Schwerpunkt auf der Lehre einschließlich der Einheit von Lehre und Forschung.

京都大学 / 0048 / 新制・課程博士 / 博士(文学) / 甲第17803号 / 文博第624号 / 新制||文||594(附属図書館) / 30618 / 京都大学大学院文学研究科思想文化学専攻 / (主査)教授 吉岡 洋, 教授 根立 研介, 教授 篠原 資明 / 学位規則第4条第1項該当 / Doctor of Letters / Kyoto University / DFAM

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The period after the February 1948 posed great changes for the cultural sphere, the groups and clubs were dissolved, artists who did not want to squeeze into the limits of socialist realism had no choice than to close themselves in the privacy of their homes and studios. After 1950, however, a group of friends around Jiří Kolář formed in Prague, who shared the same views on political and cultural development and, despite various artistic orientations, captured everyday experiences in pictures or texts. The thesis focuses on the friendship of Jiří Kolář, Vladimír Fuka, Eva Fuka, Zdeněk Urbánek, Jan Rychlík, Kamil LhoJan Hanč, Josef Schwarz-Červinka, Emanuel Frynta and others, and tries to portray this period of time, their mutual inspirations and relationships, and especially the extremely creative atmosphere, which was originated in this friendly circle. The thesis is based on diary entries, drawings, collages, poems and literary texts, which they created together and for each other in this unique, free and inspiring environment.

有別於國內現有相關研究文獻，本研究首度將台灣50股價指數報酬率及區分多頭市場、空頭市場後之每日台灣加權股價指數報酬率、台灣50股價指數報酬率分別與相對應之每日外資買賣超金額納入研究，並以2002年1月至2008年12月底止之這一段時間為研究期間，從其間所經歷之數個多頭、空頭起伏波段，以瞭解外資之累積性淨買超或淨賣超行為對台灣股價指數報酬率所產生之影響，藉由實證數據探知外資於我國股市是否有洞燭先機，居證券市場領先者之能力，抑或僅是市場之追隨者。 經以因果關係檢定發現，就研究期間內所有樣本資料而言，在台灣加權股價指數方面，台灣加權股價指數報酬率與外資買賣超金額間呈具反饋互為因果之關係，但在落後期數加長後，加權股價指數報酬率對於外資買賣超金額仍維持相當顯著之影響關係，而外資買賣超金額對於加權股價指數報酬率影響之顯著性則有減弱現象。在台灣50股價指數部分，檢定結果則與台灣加權股價指數報酬率之情形有別，台灣50股價指數報酬率對外資買賣超金額存在著明顯之單向影響關係，即外資買賣超金額係隨著台灣50股價指數報酬率漲跌幅之高低而變動。 若將研究樣本資料分為多頭及空頭兩部分，經因果關係檢定發現，台灣加權股價指數與台灣50股價指數無論是在多頭市場或空頭市場，所呈現之結果均相同，即當市場處於大多頭時，外資買賣超金額單向的隨著加權股價指數報酬率及台灣50股價指數報酬率之變動而變動，但在市場處於小多頭或空頭時，外資買賣超金額與加權股價指數報酬率及台灣50股價指數報酬率間之因果關係並不顯著。

The aim of the thesis is the analysis of "domestication" of the scientific-technical revolution and the most important alimentary behavior of Czech society in the 1950' and 1960' of the 20th century. In the thesis is this process interpreted in the context of the change of the regime and of the ideological patterns in the mid- 1950', which should help to overcome the difficulties of the Stalinist utopianism - increased emphasis on quality of lifestyle, housing development, architecture and design, modernization of kitchen equipment and the transformation of ideas about desirable social standards and their importance to legitimize post-Stalinist organization. More specifically, in the context of "domestication" of the scientific-technical revolution, I deal with topics such as the rationalization and mechanization of houseworks, emphasis on hygiene and nutrition, quality of food storage and preparation, the transformation of food composition, the "discovery" of vitamins and enzymes, minerals and etc., haunches on consumerism, developing doctrines of household management, image of woman and her place in the household and other topics. The present work examines not only the structural changes that have occurred, but their ideological aspects - especially the place where the promise of a better life...