activity
20232026
collaborators

5 papers

cs.CR2026

MIRAGE: Protecting against Malicious Image Editing via False Moderation

Anshul Nasery, Ramnath Kumar, Cho-Jui Hsieh +1

The proliferation of AI-powered image editing systems raises serious concerns because it allows personal images to be arbitrarily manipulated at scale, with minimal effort, and a l…

cs.IR2026

FastLane: Efficient Routed Systems for Late-Interaction Retrieval

Ramnath Kumar, Prateek Jain, Cho-Jui Hsieh

Late-interaction retrieval models like ColBERT achieve superior accuracy by enabling token-level interactions, but their computational cost hinders scalability and integration with…

cs.LG2026

FlexAct: Why Learn when you can Pick?

Ramnath Kumar, Kyle Ritscher, Junmin Judy +2

Learning activation functions has emerged as a promising direction in deep learning, allowing networks to adapt activation mechanisms to task-specific demands. In this work, we int…

cs.CV2024

On the Limits of Multi-modal Meta-Learning with Auxiliary Task Modulation Using Conditional Batch Normalization

Jordi Armengol-Estapé, Vincent Michalski, Ramnath Kumar +3

Few-shot learning aims to learn representations that can tackle novel tasks given a small number of examples. Recent studies show that cross-modal learning can improve representati…

cs.LG2023

EHI: End-to-end Learning of Hierarchical Index for Efficient Dense Retrieval

Ramnath Kumar, Anshul Mittal, Nilesh Gupta +3

Dense embedding-based retrieval is widely used for semantic search and ranking. However, conventional two-stage approaches, involving contrastive embedding learning followed by app…