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20242026
most citedShould We Fine-Tune or RAG? Evaluating Different Techniques to Adapt LLMs for Dialogue

4 citations · 8 across the 9 of their papers we have counts for

collaborators

10 papers

cs.AI2026

V-DyKnow: A Dynamic Benchmark for Time-Sensitive Knowledge in Vision Language Models

Seyed Mahed Mousavi, Christian Moiola, Massimo Rizzoli +2

Vision-Language Models (VLMs) are trained on data snapshots of documents, including images and texts. Their training data and evaluation benchmarks are typically static, implicitly…

cs.CV2026

Getting to the Point: Pointing Improves LVLMs at Counting

Simone Alghisi, Massimo Rizzoli, Seyed Mahed Mousavi +1

Pointing-based methods decompose complex tasks as sequential grounding and reasoning steps. Given a query, the model first grounds the relevant objects by generating their coordina…

cs.CL2026

What Does Loss Optimization Actually Teach, If Anything? Knowledge Dynamics in Continual Pre-training of LLMs

Seyed Mahed Mousavi, Simone Alghisi, Giuseppe Riccardi

Continual Pre-Training (CPT) is widely used for acquiring and updating factual knowledge in LLMs. This practice treats loss as a proxy for knowledge learning, while offering no gro…

cs.CV2025

Synthetic Stimuli, Real Gains: Rethinking VLM Fine-Tuning Through Fully Controlled Data Generation

Massimo Rizzoli, Simone Alghisi, Seyed Mahed Mousavi +1

Performance gains of Vision Language Models (VLMs) obtained by fine-tuning are generally based on ad hoc data collection and annotation of real-world scenes. Despite the improvemen…

cs.CV2025

[De|Re]constructing VLMs' Reasoning in Counting

Simone Alghisi, Gabriel Roccabruna, Massimo Rizzoli +2

Vision-Language Models (VLMs) have recently gained attention due to their competitive performance on multiple downstream tasks, achieved by following user-input instructions. Howev…

cs.CV2025

CIVET: Systematic Evaluation of Understanding in VLMs

Massimo Rizzoli, Simone Alghisi, Olha Khomyn +3

While Vision-Language Models (VLMs) have achieved competitive performance in various tasks, their comprehension of the underlying structure and semantics of a scene remains underst…

cs.CL2025

LLMs as Repositories of Factual Knowledge: Limitations and Solutions

Seyed Mahed Mousavi, Simone Alghisi, Giuseppe Riccardi

LLMs' sources of knowledge are data snapshots containing factual information about entities collected at different timestamps and from different media types (e.g. wikis, social med…

cs.CL2024★ 4 cited

Should We Fine-Tune or RAG? Evaluating Different Techniques to Adapt LLMs for Dialogue

Simone Alghisi, Massimo Rizzoli, Gabriel Roccabruna +2

We study the limitations of Large Language Models (LLMs) for the task of response generation in human-machine dialogue. Several techniques have been proposed in the literature for…

cs.CL2024★ 4 cited

DyKnow: Dynamically Verifying Time-Sensitive Factual Knowledge in LLMs

Seyed Mahed Mousavi, Simone Alghisi, Giuseppe Riccardi

LLMs acquire knowledge from massive data snapshots collected at different timestamps. Their knowledge is then commonly evaluated using static benchmarks. However, factual knowledge…

cs.CL2024

Are LLMs Robust for Spoken Dialogues?

Seyed Mahed Mousavi, Gabriel Roccabruna, Simone Alghisi +3

Large Pre-Trained Language Models have demonstrated state-of-the-art performance in different downstream tasks, including dialogue state tracking and end-to-end response generation…