<p dir="ltr">This thesis involves three topics related to forensic analysis of media data. The first topic is the analysis of images and documents that have been created with a scanner. The goal is to detect and identify scanner model from the scanned images/documents. We propose a deep learning system that can automatically learn the inherent features of the scanned images. This system will produce a scanner model identification and a reliability map for a scanned image. The proposed system has shown promising results in the forensic analysis of scanned images. The second topic is related to forensic integrity of scientific papers. The project is divided into multiple tasks, data collection, image extraction, and manipulation detection. We have constructed a dataset of retracted scientific papers that have been verified to have issues with integrity. We design and maintain a web-based Scientific Integrity System for forensic analysis of the images within scientific publications. The third topic is related to media document analysis. Our goal is to identify the publication style for media document, aiding in the potential document manipulation. We are mainly focusing on image-text consistency check, and synthetic tweets analysis. For image-text inconsistency check, we describe a system that can examine an image in document and the corresponding text caption (or other associated text with the image) to check the image/text consistency. For synthetic tweets analysis, we propose a system to detect and identify the text generation models and paraphrase attack models.</p>

The aim of my extended essay is to map out a state of an introduction of quality standards of social services in Social Welfare Institition of Stod. Process of a standard formation and their division into three basic parts are described in the first theoretical part. This is followed by a detailed acquaintance with the content of all the standards which is complemented by some instructions how to distinguish their filling and the most frequent mistakes. We can also find an explanation of a new terminology here which is used in the standards most often. The results of my carried-out qualitative research are presented in the following part. These were obtained by means of evaluating the interviews with some users and providers of social services, by making a content analysis of documentation and an analysis of various situations arising during the formation and introduction of standards in Social Welfare Institution of Stod. In this part, there is also a SWOT analysis of the current state of filling standards in this institution. The valuable point of the whole research is a suggestion of a methodical procedure during the intruduction of quality standards of social services which can be an instruction for other institutions. In the closing part of my extended essay, some measures are suggested which should contribute to a faster implementation of the standards into practice.