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Mahashweta Das

6 accepted papers

2026

Sysformer: Safeguarding Frozen Large Language Models with Adaptive System Prompts

ICLR 2026poster

As large language models (LLMs) are deployed in safety-critical settings, it is essential to ensure that their responses comply with safety standards. Prior research has revealed that LLMs often fail to grasp the notion of safe behaviors, resulting in either unjustified refusals to harmless prompts…

Cited by 0SourceScholar
2025

MAIN-RAG: Multi-Agent Filtering Retrieval-Augmented Generation

ACL 2025long

Large Language Models (LLMs) are becoming essential tools for various natural language processing tasks but often suffer from generating outdated or incorrect information. Retrieval-Augmented Generation (RAG) addresses this issue by incorporating external, real-time information retrieval to ground L…

Cited by 0SourcePDFScholar
2024

Discrete-state Continuous-time Diffusion for Graph Generation

NeurIPS 2024poster

Graph is a prevalent discrete data structure, whose generation has wide applications such as drug discovery and circuit design. Diffusion generative models, as an emerging research focus, have been applied to graph generation tasks. Overall, according to the space of states and time steps, diffusion…

2024

Enhancing Hyperbolic Knowledge Graph Embeddings via Lorentz Transformations

ACL 2024findings

Knowledge Graph Embedding (KGE) is a powerful technique for predicting missing links in Knowledge Graphs (KGs) by learning the entities and relations. Hyperbolic space has emerged as a promising embedding space for KGs due to its ability to represent hierarchical data. Nevertheless, most existing hy…

2024

TabLog: Test-Time Adaptation for Tabular Data Using Logic Rules

ICML 2024poster

We consider the problem of test-time adaptation of predictive models trained on tabular data. Effective solution of this problem requires adaptation of predictive models trained on the source domain to a target domain, using only unlabeled target domain data, without access to source domain data. Ex…

2023

From Trainable Negative Depth to Edge Heterophily in Graphs

NeurIPS 2023poster

Finding the proper depth $d$ of a graph convolutional network (GCN) that provides strong representation ability has drawn significant attention, yet nonetheless largely remains an open problem for the graph learning community. Although noteworthy progress has been made, the depth or the number of…

Cited by 27SourcePDFScholar