activity
20242026
collaborators

5 papers

cs.AI2026

GPTNT: Benchmarking Real-Time Collaboration Between Multimodal Agents on Keep Talking And Nobody Explodes

Amit Parekh, Sabrina McCallum, Kareem Al-Hasan +3

Multimodal models are increasingly deployed to solve tasks collaboratively with humans or other artificial agents. Existing benchmarks show that these models possess many of the re…

cs.AI2026

Retrievit: In-context Retrieval Capabilities of Transformers, State Space Models, and Hybrid Architectures

Georgios Pantazopoulos, Malvina Nikandrou, Ioannis Konstas +1

Transformers excel at in-context retrieval but suffer from quadratic complexity with sequence length, while State Space Models (SSMs) offer efficient linear-time processing but hav…

cs.HC2025

Evaluating Multimodal Language Models as Visual Assistants for Visually Impaired Users

Antonia Karamolegkou, Malvina Nikandrou, Georgios Pantazopoulos +5

This paper explores the effectiveness of Multimodal Large Language models (MLLMs) as assistive technologies for visually impaired individuals. We conduct a user survey to identify…

cs.CL2025

CROPE: Evaluating In-Context Adaptation of Vision and Language Models to Culture-Specific Concepts

Malvina Nikandrou, Georgios Pantazopoulos, Nikolas Vitsakis +2

As Vision and Language models (VLMs) are reaching users across the globe, assessing their cultural understanding has become a critical challenge. In this paper, we introduce CROPE,…

cs.CV2024

Shaking Up VLMs: Comparing Transformers and Structured State Space Models for Vision & Language Modeling

Georgios Pantazopoulos, Malvina Nikandrou, Alessandro Suglia +2

This study explores replacing Transformers in Visual Language Models (VLMs) with Mamba, a recent structured state space model (SSM) that demonstrates promising performance in seque…