activity
20232026
most citedCan Query Expansion Improve Generalization of Strong Cross-Encoder Rankers?

13 citations · 29 across the 13 of their papers we have counts for

collaborators

15 papers

cs.LG2026

Exposure-Based Reinforcement Learning to Rank

Harrie Oosterhuis, Rolf Jagerman, Zhen Qin +1

Reinforcement learning (RL) methods for learning-to-rank (LTR) can optimize (almost) any ranking goal, e.g., from precision or discounted cumulative gain to fairness-of-exposure or…

cs.CL2025

The FACTS Leaderboard: A Comprehensive Benchmark for Large Language Model Factuality

Aileen Cheng, Alon Jacovi, Amir Globerson +62

We introduce The FACTS Leaderboard, an online leaderboard suite and associated set of benchmarks that comprehensively evaluates the ability of language models to generate factually…

cs.IR2025

Harnessing Pairwise Ranking Prompting Through Sample-Efficient Ranking Distillation

Junru Wu, Le Yan, Zhen Qin +6

While Pairwise Ranking Prompting (PRP) with Large Language Models (LLMs) is one of the most effective zero-shot document ranking methods, it has a quadratic computational complexit…

cs.IR2025

Optimizing Compound Retrieval Systems

Harrie Oosterhuis, Rolf Jagerman, Zhen Qin +1

Modern retrieval systems do not rely on a single ranking model to construct their rankings. Instead, they generally take a cascading approach where a sequence of ranking models are…

cs.CL2025

Adapting Decoder-Based Language Models for Diverse Encoder Downstream Tasks

Paul Suganthan, Fedor Moiseev, Le Yan +7

Decoder-based transformers, while revolutionizing language modeling and scaling to immense sizes, have not completely overtaken encoder-heavy architectures in natural language proc…

cs.IR2024

Searching Personal Collections

Michael Bendersky, Donald Metzler, Marc Najork +1

This article describes the history of information retrieval on personal document collections.

cs.CL2024

Integrating Planning into Single-Turn Long-Form Text Generation

Yi Liang, You Wu, Honglei Zhuang +8

Generating high-quality, in-depth textual documents, such as academic papers, news articles, Wikipedia entries, and books, remains a significant challenge for Large Language Models…

cs.CL2024★ 3 cited

Inference Scaling for Long-Context Retrieval Augmented Generation

Zhenrui Yue, Honglei Zhuang, Aijun Bai +7

The scaling of inference computation has unlocked the potential of long-context large language models (LLMs) across diverse settings. For knowledge-intensive tasks, the increased c…

cs.LG2024

LAMPO: Large Language Models as Preference Machines for Few-shot Ordinal Classification

Zhen Qin, Junru Wu, Jiaming Shen +2

We introduce LAMPO, a novel paradigm that leverages Large Language Models (LLMs) for solving few-shot multi-class ordinal classification tasks. Unlike conventional methods, which c…

cs.IR2024★ 3 cited

Reliable Confidence Intervals for Information Retrieval Evaluation Using Generative A.I

Harrie Oosterhuis, Rolf Jagerman, Zhen Qin +2

The traditional evaluation of information retrieval (IR) systems is generally very costly as it requires manual relevance annotation from human experts. Recent advancements in gene…

cs.IR2024

Consolidating Ranking and Relevance Predictions of Large Language Models through Post-Processing

Le Yan, Zhen Qin, Honglei Zhuang +4

The powerful generative abilities of large language models (LLMs) show potential in generating relevance labels for search applications. Previous work has found that directly askin…

cs.CL2024★ 1 cited

LiPO: Listwise Preference Optimization through Learning-to-Rank

Tianqi Liu, Zhen Qin, Junru Wu +9

Aligning language models (LMs) with curated human feedback is critical to control their behaviors in real-world applications. Several recent policy optimization methods, such as DP…

cs.IR2023★ 13 cited

Can Query Expansion Improve Generalization of Strong Cross-Encoder Rankers?

Minghan Li, Honglei Zhuang, Kai Hui +5

Query expansion has been widely used to improve the search results of first-stage retrievers, yet its influence on second-stage, cross-encoder rankers remains under-explored. A rec…

cs.IR2023★ 2 cited

PaRaDe: Passage Ranking using Demonstrations with Large Language Models

Andrew Drozdov, Honglei Zhuang, Zhuyun Dai +8

Recent studies show that large language models (LLMs) can be instructed to effectively perform zero-shot passage re-ranking, in which the results of a first stage retrieval method,…

cs.IR2023★ 7 cited

Beyond Yes and No: Improving Zero-Shot LLM Rankers via Scoring Fine-Grained Relevance Labels

Honglei Zhuang, Zhen Qin, Kai Hui +4

Zero-shot text rankers powered by recent LLMs achieve remarkable ranking performance by simply prompting. Existing prompts for pointwise LLM rankers mostly ask the model to choose…