activity
20242026
collaborators

5 papers

cs.CL2026

Fine-tuning vs. In-context Learning in Large Language Models: A Formal Language Learning Perspective

Bishwamittra Ghosh, Soumi Das, Till Speicher +5

Large language models (LLMs) operate in two fundamental learning modes - fine-tuning (FT) and in-context learning (ICL) - raising key questions about which mode yields greater lang…

cs.CL2026

A Family of LLMs Liberated from Static Vocabularies

Aleph Alpha, :, Adnen Abdessaied +35

Tokenization is a central component of natural language processing in current large language models (LLMs), enabling models to convert raw text into processable units. Although lea…

cs.AI2026

Revisiting Privacy, Utility, and Efficiency Trade-offs when Fine-Tuning Large Language Models

Soumi Das, Camila Kolling, Mohammad Aflah Khan +5

We study the inherent trade-offs in minimizing privacy risks and maximizing utility, while maintaining high computational efficiency, when fine-tuning large language models (LLMs).…

cs.LG2025

Investigating the Effects of Fairness Interventions Using Pointwise Representational Similarity

Camila Kolling, Till Speicher, Vedant Nanda +2

Machine learning (ML) algorithms can often exhibit discriminatory behavior, negatively affecting certain populations across protected groups. To address this, numerous debiasing me…

cs.CL2024

Towards Reliable Latent Knowledge Estimation in LLMs: Zero-Prompt Many-Shot Based Factual Knowledge Extraction

Qinyuan Wu, Mohammad Aflah Khan, Soumi Das +7

In this paper, we focus on the challenging task of reliably estimating factual knowledge that is embedded inside large language models (LLMs). To avoid reliability concerns with pr…