DataFunTalk
Dec 14, 2020 · Artificial Intelligence
Query Expansion Techniques: Relevance Modeling vs. Generative Approaches and Future Directions
This article reviews current query expansion methods, contrasting relevance‑based models that rely on terms or entities with generative models that encode whole queries, discusses challenges of handling long and complex queries, and surveys recent research on encoding queries, session modeling, and multi‑task feature integration.
NLPQuery Expansiongenerative models
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