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20192026
most citedCOVID-19 on Social Media: Analyzing Misinformation in Twitter Conversations

137 citations · 233 across the 26 of their papers we have counts for

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Showing cs.LGShow all

8 papers · 1 filter

cs.LG2026

Clean: Second-order LLM Training at Linear Memory Cost via Nystr{ö}m Sketching

Beheshteh T. Rakhshan, Sahar Rajabi, Maziar Sargordi Shikai Fang +4

Training large language models (LLMs) entails a fundamental trade-off: memory-efficient optimizers such as Adam discard cross-parameter curvature, whereas full-curvature methods su…

cs.LG2025

Geometrically Principled Randomized Optimization for Efficient LLM Training

Sahar Rajabi, Nayeema Nonta, Sirisha Rambhatla

Low-rank gradient optimization for large language models is currently divided into two categories: structured methods that rigorously identify subspaces, and randomized approaches…

cs.LG2025

SafeTuneBed: A Toolkit for Benchmarking LLM Safety Alignment in Fine-Tuning

Saad Hossain, Samanvay Vajpayee, Sirisha Rambhatla

As large language models (LLMs) become ubiquitous, parameter-efficient fine-tuning methods and safety-first defenses have proliferated rapidly. However, the number of approaches an…

cs.LG2025

SubTrack++ : Gradient Subspace Tracking for Scalable LLM Training

Sahar Rajabi, Nayeema Nonta, Sirisha Rambhatla

Training large language models (LLMs) is highly resource-intensive due to their massive number of parameters and the overhead of optimizer states. While recent work has aimed to re…

cs.LG2023★ 1 cited

Domain Generalization for Domain-Linked Classes

Kimathi Kaai, Saad Hossain, Sirisha Rambhatla

Domain generalization (DG) focuses on transferring domain-invariant knowledge from multiple source domains (available at train time) to an, a priori, unseen target domain(s). This…

cs.LG2021★ 2 cited

Cross-Node Federated Graph Neural Network for Spatio-Temporal Data Modeling

Chuizheng Meng, Sirisha Rambhatla, Yan Liu

Vast amount of data generated from networks of sensors, wearables, and the Internet of Things (IoT) devices underscores the need for advanced modeling techniques that leverage the…

cs.LG2020★ 3 cited

Towards Accurate Spatiotemporal COVID-19 Risk Scores using High Resolution Real-World Mobility Data

Sirisha Rambhatla, Sepanta Zeighami, Kameron Shahabi +2

As countries look towards re-opening of economic activities amidst the ongoing COVID-19 pandemic, ensuring public health has been challenging. While contact tracing only aims to tr…

cs.LG2020★ 3 cited

Physics-aware Spatiotemporal Modules with Auxiliary Tasks for Meta-Learning

Sungyong Seo, Chuizheng Meng, Sirisha Rambhatla +1

Modeling the dynamics of real-world physical systems is critical for spatiotemporal prediction tasks, but challenging when data is limited. The scarcity of real-world data and the…