Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 23 for “"Deepfakes"”.
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Detecting Deepfakes with Human Help to Help Humans Detect Deepfakes
Fake or manipulated video media (“deepfakes”) pose a clear threat to the integrity of online spaces that rely on video, from social media, to news media, to video conferencing platforms. To the human eye, these computer-generated fake videos are increasingly indistinguishable from genuine videos …
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Použitelnost Deepfakes v oblasti kybernetické bezpečnosti
Deepfake technológia je v poslednej dobe na vzostupe. Vzniká mnoho techník a nástrojov pre tvorbu deepfake médií a začínajú sa používať ako pre nezákonné tak aj pre prospešné činnosti. Nezákonné použitie vedie k výskumu techník pre detekciu deepfake médií a ich neustálemu zlepšovaniu, takisto ako k …
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Cheated by deepfakes? deepfake detection ability, people’s reactions, and ethical implications
… questions: First, how well do people detect deepfakes, and what factors affect their ability to detect deepfakes? Second, what are their reactions when deepfakes are revealed ? Third, what do they see as the ethical implications of deepfakes, and how deepfakes could be used or abused? For …
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Unmasking Deepfakes, Adversarial Attacks, and Mobile Users in The Deep Learning Era
… activity in recent years is the phenomenon of deepfakes. Their widespread dissemination, ease of generation, and high quality make them among the most dangerous threats. Discrediting a person, spreading false news, and jeopardizing digital identities have become alarmingly accessible. Although …
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Socially (de)constructing deepfakes: understanding socio-technical interests and concerns in deepfake media
… While there have been some positive uses of deepfakes in translation and entertainment, the technology is often defined by two negative use cases: political misinformation and non-consensual sexual imagery. A further harm comes from the lack of faith in real videos as a consequence of the …
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REPURPOSING DEEPFAKES FOR SOCIAL GOOD: THEORY, EMPIRICAL EVIDENCE, AND AI SYSTEMS FOR BIAS MEASUREMENT AND MITIGATION
… challenges by systematically repurposing deepfakes, a controversial yet technologically promising artificial intelligence technology, for rigorous bias measurement and mitigation. The first essay conducts a comprehensive analysis of 826 academic papers to understand deepfake …
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NoiseLearner: An Unsupervised, Content-agnostic Approach to Detect Deepfake Images
… of hyper- realistic synthetic images or "deepfakes" at high resolutions, making them almost indistin- guishable from real images from cameras. While exciting, this technology introduces room for abuse. Deepfakes have already been misused to produce pornography, political propaganda, and …
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From Social Media to Deepfakes: Participatory human rights witnessing and advocacy using audiovisual media, incorporating the emerging impacts of deceptive AI and technologies for authenticity and trust (2007-22)
… - particularly around media manipulation, deepfakes, authenticity and trust, and artificial intelligence - impact practices and dilemmas, and how can they be shaped from a global human rights perspective? My methods include participatory and action research, field-mapping, expert interviews …
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Interactivity and authenticity in AI-augmented videos
… explore how neural network driven manipulations, deepfakes, are discerned by individuals. To do this, I create a new deepfakes dataset of Presidents Donald Trump and Joseph Biden and test how individuals employ visual, auditory and textual reasoning to differentiate between real and synthesized …
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Deepfake Face Detection: An Ensemble Framework for Generalized Classification in Biometric Verification Systems
… but do not perform as well on unseen types of deepfakes that were not part of their training dataset. We propose building an ensemble model with multiple base detectors, each trained on different generation model families to maintain high performance across many deepfake generation methods. …
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ML-CHIEFS: machine learning-based corneal-specular highlight imaging for enhancing facial recognition security
… to resolve significant FRS challenges, including Deepfakes and identity thefts, liveness presentation attacks (PA), and master face dictionary attacks (MFDA). We propose countermeasures against facial biometric PAs, detect DeepFakes, and identify MFDA using intelligent ML-based specular highlights …
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A study on creativity: Detection and network structures
… harmful applications are commonly referred to as deepfakes. This thesis consists of two parts that focus on each of these aspects separately. The first part deals with the detection problem for deepfake content. It outlines a classification problem for identifying an image as legitimate or fake, …
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Unleashing the Power of Generative AI: The Race for Advancement and the Global Ramifications
… the production of fake news, propaganda, and deepfakes, as countries and corporations compete for control over it. The creation of highly sophisticated generative AI systems has also sparked discussions about the moral and societal ramifications of making machines that can generate content on …
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Artificial perceptions : biases, fictionalities, and signifiers
… the computational discipline. The term "semiotic deepfakes" is coined as a reaction to excerpts of text generated by the trained model, envisioning how machine learning might mislead the public on authorship. This idea is explored further through the development of Alan Turing's Imitation Game, …
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Defending Against Misuse of Synthetic Media: Characterizing Real-world Challenges and Building Robust Defenses
… the generation of realistic synthetic media or deepfakes, including synthetic images, videos, and text. However, synthetic media can be misused for malicious purposes and damage users' trust in online content. This dissertation aims to address several key challenges in defending against the …
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Εμπορία ανθρώπων: Πώς η τεχνητή νοημοσύνη αλλάζει το τοπίο
… Παράλληλα, τεκμηριώθηκε η χρήση Παραγωγικής ΤΝ (deepfakes) από διακινητές για εκβιασμό και στρατολόγηση. Συμπεράσματα: Η ΤΝ ενισχύει τις δυνατότητες παρέμβασης, αλλά η επιτυχία της εξαρτάται από ένα ανθρωποκεντρικό ηθικό πλαίσιο. Απαιτείται μια προσέγγιση «ενημερωμένη για το τραύμα» …
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Multimedia Forensics: From Image manipulation to the Deep Fake.New Threats in the Social Media Era.
… until arriving to the emerging phenomenon of the DeepFakes. Nowadays the social media ecosystem includes hundreds of applications, based on web and mobile technologies and able to allow people to communicate easily and/or to share information, resources, images and videos. However it also hides a …
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Discovering Fingerprints for Deepfake Detection and Multimedia-Enhanced Forensic Investigations
… define the generative models used to create deepfakes, but, in general, this trace can be extracted from evidences recovered in a crime scene as shells or projectiles to determine the model of gun that have fired (Forensic Firearms Ballistics Comparison). Forensic Analysis of Handwritten …
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The challenges of deepfake technology on the decision-making processes within law enforcement : a study within the EU landscape
… all with direct or indirect experience of deepfakes in criminal investigations. There was a broad consensus among respondents on a significant lack of preparedness in addressing deepfake threats, both in terms of detection capabilities and evidentiary handling. Officers reported substantial …
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Media Mimicry - How ‘Mimic Vlogs’ Emulate User-Generated Content in Online Stories
… ‘malicious’ forms of replica content, such as deepfakes and disinformation. While mimic vlogs as a YouTube format were in their prime during the mid-2010s, they set the precedent for emerging storytelling techniques on other platforms that feature user-generated content. Similar stories are now …
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