Papers by Marzyeh Ghassemi
MOSAIC: Modeling Social AI for Content Dissemination and Regulation in Multi-Agent Simulations (2025.emnlp-main)
Copied to clipboard
| Challenge: | generative language agents predict user behaviors such as liking, sharing, and flagging content. |
| Approach: | They propose a framework where generative language agents predict user behaviors such as liking, sharing, and flagging content. |
| Outcome: | The proposed framework analyzes content moderation strategies and user engagement dynamics at scale and demonstrates that agents’ articulated reasoning for their social interactions aligns with their collective engagement patterns. |
MisinfoEval: Generative AI in the Era of “Alternative Facts” (2024.emnlp-main)
Copied to clipboard
| Challenge: | Existing efforts to address misinformation on social media platforms are hampered by user biases and scalability challenges. |
| Approach: | They propose a framework for generating and comprehensively evaluating large language model based misinformation interventions using a simulated social media environment and personalized explanations tailored to users' beliefs. |
| Outcome: | The proposed framework improves accuracy at reliability labeling by up to 41.72% and personalized explanations appeal to users' pre-existing values. |
SFTMix: Elevating Language Model Instruction Tuning with Mixup Recipe (2026.acl-long)
Copied to clipboard
| Challenge: | Efforts to improve instruction tuning often focus on higher-quality supervised fine-tuning datasets, typically requiring data filtering with proprietary LLMs or human annotation. |
| Approach: | They propose a Mixup-based recipe that elevates LLM instruction tuning without relying on well-curated datasets. |
| Outcome: | The proposed model improves instruction-following and healthcare-specific tasks with consistent improvements across LLM families and SFT datasets. |
SSMBA: Self-Supervised Manifold Based Data Augmentation for Improving Out-of-Domain Robustness (2020.emnlp-main)
Copied to clipboard
| Challenge: | Data augmentation is a common method used to improve out-of-domain (OOD) generalization. |
| Approach: | They propose a data augmentation method that uses corruption and reconstruction functions to move randomly on a manifold to generate training examples. |
| Outcome: | The proposed method outperforms existing methods and baseline models on both in-domain and OOD data and achieves gains of 0.8% on OOD Amazon reviews, 1.8% accuracy on OOO MNLI, and 1.4 BLEU on in- domain IWSLT14 German-English. |
Can AI Relate: Testing Large Language Model Response for Mental Health Support (2024.findings-emnlp)
Copied to clipboard
| Challenge: | Large language models (LLMs) are already being piloted for clinical use in hospitals . recent failures of the Tessa chatbot have led to doubts about their reliability in high-stakes settings. |
| Approach: | They propose safety guidelines for the potential deployment of large language models for mental health response. |
| Outcome: | The proposed framework measures equity in empathy and adherence of LLM responses to motivational interviewing theory. |