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cs.IR2026

Seek: Self-Evaluative Exploration for Knowledge Retrieval

Amin Bigdeli, Radin Hamidi Rad, Negar Arabzadeh +4

LLM-based retrievers and rerankers have advanced passage ranking, yet both paradigms interact with the corpus in a single pass and commit to the resulting candidate set, leaving re…

cs.IR2026

Route Me If You Can: A Benchmark for Query Reformulation Selection

Hai Son Le, Negar Arabzadeh, Amin Bigdeli +4

LLM-based query reformulation can improve retrieval, but no single reformulation strategy is consistently optimal across queries, domains, retrievers, or model backbones. This crea…

cs.IR2026

ADORE: Iterative Query Expansion with Retrieval-Grounded Relevance Feedback

Amin Bigdeli, Negar Arabzadeh, Radin Hamidi Rad +3

LLM-based query expansion improves retrieval by enriching the original query with additional context. Yet most methods remain generation-driven, producing plausible pseudo-document…

cs.IR2026

From Noise to Order: Learning to Rank via Denoising Diffusion

Sajad Ebrahimi, Bhaskar Mitra, Negar Arabzadeh +4

In information retrieval (IR), learning-to-rank (LTR) methods have traditionally limited themselves to discriminative machine learning approaches that model the probability of the…

cs.IR2025

exHarmony: Authorship and Citations for Benchmarking the Reviewer Assignment Problem

Sajad Ebrahimi, Sara Salamat, Negar Arabzadeh +2

The peer review process is crucial for ensuring the quality and reliability of scholarly work, yet assigning suitable reviewers remains a significant challenge. Traditional manual…