aegis
AEGIS: Preserving privacy of 3D Facial Avatars with Adversarial Perturbations
Wolkiewicz, Dawid, Pechko, Anastasiya, Spurek, Przemysław, Syga, Piotr
The growing adoption of photorealistic 3D facial avatars, particularly those utilizing efficient 3D Gaussian Splatting representations, introduces new risks of online identity theft, especially in systems that rely on biometric authentication. While effective adversarial masking methods have been developed for 2D images, a significant gap remains in achieving robust, viewpoint-consistent identity protection for dynamic 3D avatars. To address this, we present AEGIS, the first privacy-preserving identity masking framework for 3D Gaussian Avatars that maintains the subject's perceived characteristics. Our method aims to conceal identity-related facial features while preserving the avatar's perceptual realism and functional integrity. AEGIS applies adversarial perturbations to the Gaussian color coefficients, guided by a pre-trained face verification network, ensuring consistent protection across multiple viewpoints without retraining or modifying the avatar's geometry. AEGIS achieves complete de-identification, reducing face retrieval and verification accuracy to 0%, while maintaining high perceptual quality (SSIM = 0.9555, PSNR = 35.52 dB). It also preserves key facial attributes such as age, race, gender, and emotion, demonstrating strong privacy protection with minimal visual distortion.
- Europe > Poland > Lower Silesia Province > Wroclaw (0.76)
- Europe > Poland > Lesser Poland Province > Kraków (0.04)
- Asia (0.04)
Aegis: A Correlation-Based Data Masking Advisor for Data Sharing Ecosystems
Laskar, Omar Islam, Khozestani, Fatemeh Ramezani, Nankani, Ishika, Nia, Sohrab Namazi, Roy, Senjuti Basu, Beedkar, Kaustubh
Data sharing ecosystems connect providers, consumers, and intermediaries to facilitate the exchange and use of data for a wide range of downstream tasks. In sensitive domains such as healthcare, privacy is enforced as a hard constraint, any shared data must satisfy a minimum privacy threshold. However, among all masking configurations that meet this requirement, the utility of the masked data can vary significantly, posing a key challenge: how to efficiently select the optimal configuration that preserves maximum utility. This paper presents Aegis, a middleware framework that selects optimal masking configurations for machine learning datasets with features and class labels. Aegis incorporates a utility optimizer that minimizes predictive utility deviation, quantifying shifts in feature label correlations due to masking. Our framework leverages limited data summaries (such as 1D histograms) or none to estimate the feature label joint distribution, making it suitable for scenarios where raw data is inaccessible due to privacy restrictions. To achieve this, we propose a joint distribution estimator based on iterative proportional fitting, which allows supporting various feature label correlation quantification methods such as mutual information, chi square, or g3. Our experimental evaluation of real world datasets shows that Aegis identifies optimal masking configurations over an order of magnitude faster, while the resulting masked datasets achieve predictive performance on downstream ML tasks on par with baseline approaches and complements privacy anonymization data masking techniques.
- North America > United States > New Jersey (0.05)
- Asia > India > NCT > Delhi (0.04)
- Asia > India > NCT > New Delhi (0.04)
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- Law (1.00)
- Information Technology > Security & Privacy (1.00)
- Health & Medicine (1.00)
- Government > Regional Government > North America Government > United States Government (1.00)
AEGIS: An Agent for Extraction and Geographic Identification in Scholarly Proceedings
Vishesh, Om, Khadilkar, Harshad, Akkil, Deepak
Keeping pace with the rapid growth of academia literature presents a significant challenge for researchers, funding bodies, and academic societies. To address the time-consuming manual effort required for scholarly discovery, we present a novel, fully automated system that transitions from data discovery to direct action. Our pipeline demonstrates how a specialized AI agent, 'Agent-E', can be tasked with identifying papers from specific geographic regions within conference proceedings and then executing a Robotic Process Automation (RPA) to complete a predefined action, such as submitting a nomination form. We validated our system on 586 papers from five different conferences, where it successfully identified every target paper with a recall of 100% and a near perfect accuracy of 99.4%. This demonstration highlights the potential of task-oriented AI agents to not only filter information but also to actively participate in and accelerate the workflows of the academic community.
- Asia > India > Maharashtra > Pune (0.06)
- North America > United States > New York > New York County > New York City (0.04)
- Europe > Finland > Uusimaa > Helsinki (0.04)
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AEGIS: Authenticity Evaluation Benchmark for AI-Generated Video Sequences
Li, Jieyu, Zhang, Xin, Zhou, Joey Tianyi
Recent advances in AI-generated content have fueled the rise of highly realistic synthetic videos, posing severe risks to societal trust and digital integrity. Existing benchmarks for video authenticity detection typically suffer from limited realism, insufficient scale, and inadequate complexity, failing to effectively evaluate modern vision-language models against sophisticated forgeries. To address this critical gap, we introduce AEGIS, a novel large-scale benchmark explicitly targeting the detection of hyper-realistic and semantically nuanced AI-generated videos. AEGIS comprises over 10,000 rigorously curated real and synthetic videos generated by diverse, state-of-the-art generative models, including Stable Video Diffusion, CogVideoX-5B, KLing, and Sora, encompassing open-source and proprietary architectures. In particular, AEGIS features specially constructed challenging subsets enhanced with robustness evaluation. Furthermore, we provide multimodal annotations spanning Semantic-Authenticity Descriptions, Motion Features, and Low-level Visual Features, facilitating authenticity detection and supporting downstream tasks such as multimodal fusion and forgery localization. Extensive experiments using advanced vision-language models demonstrate limited detection capabilities on the most challenging subsets of AEGIS, highlighting the dataset's unique complexity and realism beyond the current generalization capabilities of existing models. In essence, AEGIS establishes an indispensable evaluation benchmark, fundamentally advancing research toward developing genuinely robust, reliable, broadly generalizable video authenticity detection methodologies capable of addressing real-world forgery threats. Our dataset is available on https://huggingface.co/datasets/Clarifiedfish/AEGIS.
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- Asia > Singapore > Central Region > Singapore (0.04)
- Research Report (1.00)
- Overview (0.68)
AEGIS: Human Attention-based Explainable Guidance for Intelligent Vehicle Systems
Zhuang, Zhuoli, Lu, Cheng-You, Chang, Yu-Cheng Fred, Wang, Yu-Kai, Do, Thomas, Lin, Chin-Teng
Improving decision-making capabilities in Autonomous Intelligent Vehicles (AIVs) has been a heated topic in recent years. Despite advancements, training machines to capture regions of interest for comprehensive scene understanding, like human perception and reasoning, remains a significant challenge. This study introduces a novel framework, Human Attention-based Explainable Guidance for Intelligent Vehicle Systems (AEGIS). AEGIS utilizes human attention, converted from eye-tracking, to guide reinforcement learning (RL) models to identify critical regions of interest for decision-making. AEGIS uses a pre-trained human attention model to guide RL models to identify critical regions of interest for decision-making. By collecting 1.2 million frames from 20 participants across six scenarios, AEGIS pre-trains a model to predict human attention patterns.
- Asia > Japan > Honshū > Kantō > Kanagawa Prefecture > Yokohama (0.05)
- Oceania > Australia > New South Wales > Sydney (0.04)
- Oceania > Australia > Western Australia > Perth (0.04)
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- Transportation > Ground > Road (1.00)
- Automobiles & Trucks (0.93)
- Leisure & Entertainment > Games > Computer Games (0.68)
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AEGIS: An Agent-based Framework for General Bug Reproduction from Issue Descriptions
Wang, Xinchen, Gao, Pengfei, Meng, Xiangxin, Peng, Chao, Hu, Ruida, Lin, Yun, Gao, Cuiyun
In software maintenance, bug reproduction is essential for effective fault localization and repair. Manually writing reproduction scripts is a time-consuming task with high requirements for developers. Hence, automation of bug reproduction has increasingly attracted attention from researchers and practitioners. However, the existing studies on bug reproduction are generally limited to specific bug types such as program crashes, and hard to be applied to general bug reproduction. In this paper, considering the superior performance of agent-based methods in code intelligence tasks, we focus on designing an agent-based framework for the task. Directly employing agents would lead to limited bug reproduction performance, due to entangled subtasks, lengthy retrieved context, and unregulated actions. To mitigate the challenges, we propose an Automated gEneral buG reproductIon Scripts generation framework, named AEGIS, which is the first agent-based framework for the task. AEGIS mainly contains two modules: (1) A concise context construction module, which aims to guide the code agent in extracting structured information from issue descriptions, identifying issue-related code with detailed explanations, and integrating these elements to construct the concise context; (2) A FSM-based multi-feedback optimization module to further regulate the behavior of the code agent within the finite state machine (FSM), ensuring a controlled and efficient script generation process based on multi-dimensional feedback. Extensive experiments on the public benchmark dataset show that AEGIS outperforms the state-of-the-art baseline by 23.0% in F->P metric. In addition, the bug reproduction scripts generated by AEGIS can improve the relative resolved rate of Agentless by 12.5%.
- Europe > Austria > Vienna (0.14)
- Asia > China > Guangdong Province > Shenzhen (0.05)
- North America > Canada > Quebec > Montreal (0.04)
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Lightweight Safety Guardrails Using Fine-tuned BERT Embeddings
Zheng, Aaron, Rana, Mansi, Stolcke, Andreas
With the recent proliferation of large language models (LLMs), enterprises have been able to rapidly develop proof-of-concepts and prototypes. As a result, there is a growing need to implement robust guardrails that monitor, quantize and control an LLM's behavior, ensuring that the use is reliable, safe, accurate and also aligned with the users' expectations. Previous approaches for filtering out inappropriate user prompts or system outputs, such as LlamaGuard and OpenAI's MOD API, have achieved significant success by fine-tuning existing LLMs. However, using fine-tuned LLMs as guardrails introduces increased latency and higher maintenance costs, which may not be practical or scalable for cost-efficient deployments. We take a different approach, focusing on fine-tuning a lightweight architecture: Sentence-BERT. This method reduces the model size from LlamaGuard's 7 billion parameters to approximately 67 million, while maintaining comparable performance on the AEGIS safety benchmark.
Aegis:An Advanced LLM-Based Multi-Agent for Intelligent Functional Safety Engineering
Shi, Lu, Qi, Bin, Luo, Jiarui, Zhang, Yang, Liang, Zhanzhao, Gao, Zhaowei, Deng, Wenke, Sun, Lin
Functional safety is a critical aspect of automotive engineering, encompassing all phases of a vehicle's lifecycle, including design, development, production, operation, and decommissioning. This domain involves highly knowledge-intensive tasks. This paper introduces Aegis: An Advanced LLM-Based Multi-Agent for Intelligent Functional Safety Engineering. Aegis is specifically designed to support complex functional safety tasks within the automotive sector. It is tailored to perform Hazard Analysis and Risk Assessment(HARA), document Functional Safety Requirements(FSR), and plan test cases for Automatic Emergency Braking(AEB) systems. The most advanced version, Aegis-Max, leverages Retrieval-Augmented Generation(RAG) and reflective mechanisms to enhance its capability in managing complex, knowledge-intensive tasks. Additionally, targeted prompt refinement by professional functional safety practitioners can significantly optimize Aegis's performance in the functional safety domain. This paper demonstrates the potential of Aegis to improve the efficiency and effectiveness of functional safety processes in automotive engineering.
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- Asia > China (0.05)
- Automobiles & Trucks (1.00)
- Information Technology > Security & Privacy (0.34)
An Empirical Study of Aegis
Saragih, Daniel, Goel, Paridhi, Balaji, Tejas, Li, Alyssa
Bit flipping attacks are one class of attacks on neural networks with numerous defense mechanisms invented to mitigate its potency. Due to the importance of ensuring the robustness of these defense mechanisms, we perform an empirical study on the Aegis framework. We evaluate the baseline mechanisms of Aegis on low-entropy data (MNIST), and we evaluate a pre-trained model with the mechanisms fine-tuned on MNIST. We also compare the use of data augmentation to the robustness training of Aegis, and how Aegis performs under other adversarial attacks, such as the generation of adversarial examples. We find that both the dynamic-exit strategy and robustness training of Aegis has some drawbacks. In particular, we see drops in accuracy when testing on perturbed data, and on adversarial examples, as compared to baselines. Moreover, we found that the dynamic exit-strategy loses its uniformity when tested on simpler datasets. The code for this project is available on GitHub.
Intro to Argus
The recent growth of the overall NFT market has created big challenges for development teams trying to scale market infrastructure. And as NFT trading volume has increased dramatically, so has the incentive for bad actors to sell plagiarized art and counterfeit NFTs. At the same time, the need to verify the legitimacy of NFT collections has created problems for many NFT creators. Since it takes marketplaces just as much effort (if not more) to verify a small collection as a large one, marketplaces are incentivized to put off verifying smaller collections in favor of larger ones that generate more revenue. And for creators of smaller NFT collections, this incentive frequently leads to lengthy delays in gaining visibility on leading marketplaces. Even in relatively small NFT ecosystems, current verification methods create market bottlenecks that are bad for creators, marketplaces and collectors.
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- Information Technology > Services (0.36)