no code implementations • 3 May 2025 • Mazal Bethany, Nishant Vishwamitra, Cho-Yu Jason Chiang, Peyman Najafirad
Existing black-box text-based adversarial attacks are ill-suited for evidence-based misinformation detection systems, as these attacks primarily focus on token-level substitutions involving gradient or logit-based optimization strategies, which are incapable of fooling the multi-component nature of these detection systems.
no code implementations • 30 Aug 2024 • Mazal Bethany, Emet Bethany, Brandon Wherry, Cho-Yu Chiang, Nishant Vishwamitra, Anthony Rios, Peyman Najafirad
Our evaluations demonstrate that training LLMs with SCG Instructions outperforms standard instruction fine-tuning by an average of 35. 69\% on Event Trigger Classification.
no code implementations • 27 Jun 2024 • Dan Schumacher, Fatemeh Haji, Tara Grey, Niharika Bandlamudi, Nupoor Karnik, Gagana Uday Kumar, Jason Cho-Yu Chiang, Paul Rad, Nishant Vishwamitra, Anthony Rios
Large language models (LLMs) often struggle with temporal reasoning, crucial for tasks like historical event analysis and time-sensitive information retrieval.
no code implementations • 13 May 2024 • Ebuka Okpala, Nishant Vishwamitra, Keyan Guo, Song Liao, Long Cheng, Hongxin Hu, Yongkai Wu, Xiaohong Yuan, Jeannette Wade, Sajad Khorsandroo
While capstone projects are an excellent example of experiential learning, given the interdisciplinary nature of this emerging social cybersecurity problem, it can be challenging to use them to engage non-computing students without prior knowledge of AI.
2 code implementations • 27 Mar 2024 • Keyan Guo, Ayush Utkarsh, Wenbo Ding, Isabelle Ondracek, Ziming Zhao, Guo Freeman, Nishant Vishwamitra, Hongxin Hu
Online user generated content games (UGCGs) are increasingly popular among children and adolescents for social interaction and more creative online entertainment.
1 code implementation • 19 Jan 2024 • Mazal Bethany, Brandon Wherry, Nishant Vishwamitra, Peyman Najafirad
This process involves addressing two key problems: (1) the reason for obfuscating unsafe images demands the platform to provide an accurate rationale that must be grounded in unsafe image-specific attributes, and (2) the unsafe regions in the image must be minimally obfuscated while still depicting the safe regions.
no code implementations • 18 Jan 2024 • Mazal Bethany, Athanasios Galiopoulos, Emet Bethany, Mohammad Bahrami Karkevandi, Nicole Beebe, Nishant Vishwamitra, Peyman Najafirad
The emergence of Large Language Models (LLMs) has heightened the threat of phishing emails by enabling the generation of highly targeted, personalized, and automated attacks.
1 code implementation • 17 Jan 2024 • Mazal Bethany, Brandon Wherry, Emet Bethany, Nishant Vishwamitra, Anthony Rios, Peyman Najafirad
We first study the effectiveness of state-of-the-art approaches and find that they are severely limited against text produced by diverse generators and domains in the real world.
no code implementations • 7 Jan 2024 • Keyan Guo, Alexander Hu, Jaden Mu, Ziheng Shi, Ziming Zhao, Nishant Vishwamitra, Hongxin Hu
Our study reveals that a meticulously crafted reasoning prompt can effectively capture the context of hate speech by fully utilizing the knowledge base in LLMs, significantly outperforming existing techniques.
1 code implementation • 22 Dec 2023 • Nishant Vishwamitra, Keyan Guo, Farhan Tajwar Romit, Isabelle Ondracek, Long Cheng, Ziming Zhao, Hongxin Hu
HATEGUARD further achieves prompt-based zero-shot detection by automatically generating and updating detection prompts with new derogatory terms and targets in new wave samples to effectively address new waves of online hate.
no code implementations • 22 Dec 2021 • Nishant Vishwamitra, Hongxin Hu, Ziming Zhao, Long Cheng, Feng Luo
We then introduce a new type of multimodal adversarial attacks called decoupling attack in MUROAN that aims to compromise multimodal models by decoupling their fused modalities.
no code implementations • ICLR 2018 • Xiang Zhang, Nishant Vishwamitra, Hongxin Hu, Feng Luo
The numbers of convolution layers and parameters are only increased linearly in Crescendo blocks.