Improving Ad-hoc Search Effectiveness for Conversational Information Retrieval via Model Merging

arXiv:2607.08540 · cs.IR, cs.CL · Submitted 2026-07-09 · Read on arXiv

cs.IR, cs.CL

Submitted: 2026-07-09

Updated: 2026-07-09

Comments: Accepted to SIGIR 2026. 6 pages, 3 figures

Journal ref: Proc. of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2026

DOI: 10.1145/3805712.3809939

Code: https://github.com/fengranMark/QRACDR

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

Model Merging — 40× in this paper · explained in 2 episodes
Fine-Tuning — 22× in this paper · explained in 5 episodes
Information Retrieval — 18× in this paper
Generalizability — 9× in this paper · explained in 6 episodes
Catastrophic Forgetting — 6× in this paper · explained in 5 episodes
Model Soup — 5× in this paper
Accuracy — 3× in this paper · explained in 1 episode
Benchmark — 3× in this paper · explained in 2 episodes
Generalization — 3× in this paper · explained in 13 episodes
Robustness — 3× in this paper · explained in 5 episodes
Adaptation — 2× in this paper · explained in 1 episode
Contrastive Learning — 2× in this paper · explained in 5 episodes
Core — 2× in this paper · explained in 2 episodes
Distribution Shift — 1× in this paper · explained in 5 episodes
Domain Adaptation — 1× in this paper · explained in 5 episodes
Embeddings — 1× in this paper · explained in 2 episodes

Sources

Related papers