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A Survey of Generative Search and Recommendation in the Era of Large Language Models

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arxiv 2404.16924 v1 pith:LAVM7JPX submitted 2024-04-25 cs.IR cs.CL

A Survey of Generative Search and Recommendation in the Era of Large Language Models

classification cs.IR cs.CL
keywords generativerecommendationsearchparadigminformationexistingframeworklanguage
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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With the information explosion on the Web, search and recommendation are foundational infrastructures to satisfying users' information needs. As the two sides of the same coin, both revolve around the same core research problem, matching queries with documents or users with items. In the recent few decades, search and recommendation have experienced synchronous technological paradigm shifts, including machine learning-based and deep learning-based paradigms. Recently, the superintelligent generative large language models have sparked a new paradigm in search and recommendation, i.e., generative search (retrieval) and recommendation, which aims to address the matching problem in a generative manner. In this paper, we provide a comprehensive survey of the emerging paradigm in information systems and summarize the developments in generative search and recommendation from a unified perspective. Rather than simply categorizing existing works, we abstract a unified framework for the generative paradigm and break down the existing works into different stages within this framework to highlight the strengths and weaknesses. And then, we distinguish generative search and recommendation with their unique challenges, identify open problems and future directions, and envision the next information-seeking paradigm.

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