Foundations and Trends® in Information Retrieval > Vol 18 > Issue 3

Fairness in Search Systems

By Yi Fang, Santa Clara University, USA, yfang@scu.edu | Ashudeep Singh, Microsoft, USA, ashudeep.singh@microsoft.com | Zhiqiang Tao, Rochester Institute of Technology, USA, zhiqiang.tao@rit.edu

 
Suggested Citation
Yi Fang, Ashudeep Singh and Zhiqiang Tao (2024), "Fairness in Search Systems", Foundations and TrendsĀ® in Information Retrieval: Vol. 18: No. 3, pp 262-416. http://dx.doi.org/10.1561/1500000101

Publication Date: 24 Dec 2024
© 2024 Y. Fang et al.
 
Subjects
Information retrieval,  Search,  Ethics,  Web search,  Natural language processing for IR
 

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In this article:
1. Introduction
2. Background and Foundation
3. Representation Learning and Content Analysis
4. Fairness in Query Formulation and Understanding
5. Fairness in Ranked Outputs
6. Evaluation and Training in Biased User Feedback
7. Research Trends and Future Work
Acknowledgements
References

Abstract

Search engines play a crucial role in organizing and delivering information to billions of users worldwide. However, these systems often reflect and amplify existing societal biases and stereotypes through their search results and rankings. This concern has prompted researchers to investigate methods for measuring and reducing algorithmic bias, with the goal of developing more equitable search systems. This monograph presents a comprehensive taxonomy of fairness in search systems and surveys the current research landscape. We systematically examine how bias manifests across key search components, including query interpretation and processing, document representation and indexing, result ranking algorithms, and system evaluation metrics. By critically analyzing the existing literature, we identify persistent challenges and promising research directions in the pursuit of fairer search systems. Our aim is to provide a foundation for future work in this rapidly evolving field while highlighting opportunities to create more inclusive and equitable information retrieval technologies.

DOI:10.1561/1500000101
ISBN: 978-1-63828-498-7
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Table of contents:
1. Introduction
2. Background and Foundation
3. Representation Learning and Content Analysis
4. Fairness in Query Formulation and Understanding
5. Fairness in Ranked Outputs
6. Evaluation and Training in Biased User Feedback
7. Research Trends and Future Work
Acknowledgements
References

Multi-hop Question Answering

Search engines play a crucial role in organizing and delivering information to billions of users worldwide. However, these systems often reflect and amplify existing societal biases and stereotypes through their search results and rankings. This concern has prompted researchers to investigate methods for measuring and reducing algorithmic bias, with the goal of developing more equitable search systems.

This monograph presents a comprehensive taxonomy of fairness in search systems and surveys the current research landscape. This work systematically examines how bias manifests across key search components, including query interpretation and processing, document representation and indexing, result ranking algorithms, and system evaluation metrics. By critically analyzing the existing literature, persistent challenges and promising research directions in the pursuit of fairer search systems are identified. The aim is to provide a foundation for future work in this rapidly evolving field while highlighting opportunities to create more inclusive and equitable information retrieval technologies.

 
INR-101