activity
20242026
collaborators

21 papers

cs.IR2026

When Deep Research Agents Stagnate: Enhancing Reasoning with Retrieval-Aware Agent Control

Heydar Soudani, Elizabeth Lingg, Faegheh Hasibi +1

In this paper, we analyze the reasoning trajectories of a variety of DRAs and show that existing agents often suffer from reasoning stagnation: the majority of iterations contribut…

cs.IR2026

Uncertainty Quantification for Multimodal Retrieval Augmented Generation

Simon Binz, Heydar Soudani, Faegheh Hasibi

Retrieval Augmented Generation (RAG) improves the question answering capabilities of Large Language Models (LLMs) by incorporating external knowledge and has recently been extended…

cs.CL2026

A Survey on Recent Advances in Conversational Data Generation

Heydar Soudani, Roxana Petcu, Evangelos Kanoulas +1

Recent advancements in conversational systems have significantly enhanced human-machine interactions across various domains. However, training these systems is challenging due to t…

cs.IR2026

Uncertainty Quantification for Retrieval-Augmented Reasoning

Heydar Soudani, Hamed Zamani, Faegheh Hasibi

Retrieval-augmented reasoning (RAR) is a recent evolution of retrieval-augmented generation (RAG) that employs multiple reasoning steps for retrieval and generation. While effectiv…

cs.CL2026

Reproducing Complex Set-Compositional Information Retrieval

Vincent Degenhart, Dewi Timman, Arjen P. de Vries +2

Complex information needs may involve set-compositional queries using conjunction, disjunction, and exclusion, yet it remains unclear whether current retrieval paradigms genuinely…

cs.IR2026

FACE: A Fine-Grained Reference-Free Evaluator for Conversational Information Access

Hideaki Joko, Faegheh Hasibi

A systematic, reliable, and low-cost evaluation of Conversational Information Access (CIA) systems remains an open challenge. Existing reference-based evaluation methods are proven…