Robust Information Retrieval
Yu-An Liu, Ruqing Zhang, Jiafeng Guo, Maarten de Rijke

TL;DR
This paper reviews recent advances in the robustness of information retrieval systems, emphasizing adversarial and out-of-distribution robustness, and discusses challenges and future directions, especially in the context of large language models.
Contribution
It provides a comprehensive overview of robustness in IR, including taxonomy, recent methods, and challenges, serving as a tutorial for researchers and practitioners.
Findings
Extensive review of adversarial robustness techniques
Analysis of out-of-distribution robustness in IR
Discussion on robustness challenges in large language models
Abstract
Beyond effectiveness, the robustness of an information retrieval (IR) system is increasingly attracting attention. When deployed, a critical technology such as IR should not only deliver strong performance on average but also have the ability to handle a variety of exceptional situations. In recent years, research into the robustness of IR has seen significant growth, with numerous researchers offering extensive analyses and proposing myriad strategies to address robustness challenges. In this tutorial, we first provide background information covering the basics and a taxonomy of robustness in IR. Then, we examine adversarial robustness and out-of-distribution (OOD) robustness within IR-specific contexts, extensively reviewing recent progress in methods to enhance robustness. The tutorial concludes with a discussion on the robustness of IR in the context of large language models (LLMs),…
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Taxonomy
TopicsText and Document Classification Technologies
