activity
20082026
most citedBest Friends Forever (BFF): Finding Lasting Dense Subgraphs

42 citations · 174 across the 28 of their papers we have counts for

collaborators

35 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

Testing the Limits of Truth Directions in LLMs

Angelos Poulis, Mark Crovella, Evimaria Terzi

Large language models (LLMs) have been shown to encode truth of statements in their activation space along a linear truth direction. Previous studies have argued that these directi…

cs.DS2026

Approximate Pareto Frontiers for Submodular Utility and Cost Tradeoffs

Karan Vombatkere, Evimaria Terzi

In many data-mining applications, including recommender systems, influence maximization, and team formation, the goal is to pick a subset of elements (e.g., items, nodes in a netwo…

cs.DS2025

Online Two-Stage Submodular Maximization

Iasonas Nikolaou, Miltiadis Stouras, Stratis Ioannidis +1

Given a collection of monotone submodular functions, the goal of Two-Stage Submodular Maximization (2SSM) [Balkanski et al., 2016] is to restrict the ground set so an objective sel…

cs.LG2025

Understanding the Interplay between Memorization and Learning in Large Language Models

Bishwamittra Ghosh, Soumi Das, Qinyuan Wu +4

We investigate foundational questions about the interplay between memorization and learning in large language models (LLMs). When an LLM generates a string, can we disentangle the…

cs.SI2025★ 4 cited

Forming Coordinated Teams that Balance Task Coverage and Expert Workload

Karan Vombatkere, Evimaria Terzi, Aristides Gionis

We study a new formulation of the team-formation problem, where the goal is to form teams to work on a given set of tasks requiring different skills. Deviating from the classic pro…