REGENT: Relevance-Guided Attention for Entity-Aware Multi-Vector Neural Re-Ranking

• URL: http://arxiv.org/abs/2510.11592v1
• Date: Mon, 13 Oct 2025 16:31:42 GMT
• Title: REGENT: Relevance-Guided Attention for Entity-Aware Multi-Vector Neural Re-Ranking
• Authors: Shubham Chatterjee,
• Abstract summary: Current neural re-rankers often struggle with complex information needs and long, content-rich documents.<n>We introduce REGENT, a neural re-ranking model that mimics human-like understanding by using entities as a "semantic skeleton" to guide attention.
• Score: 5.279475826661643
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Current neural re-rankers often struggle with complex information needs and long, content-rich documents. The fundamental issue is not computational--it is intelligent content selection: identifying what matters in lengthy, multi-faceted texts. While humans naturally anchor their understanding around key entities and concepts, neural models process text within rigid token windows, treating all interactions as equally important and missing critical semantic signals. We introduce REGENT, a neural re-ranking model that mimics human-like understanding by using entities as a "semantic skeleton" to guide attention. REGENT integrates relevance guidance directly into the attention mechanism, combining fine-grained lexical matching with high-level semantic reasoning. This relevance-guided attention enables the model to focus on conceptually important content while maintaining sensitivity to precise term matches. REGENT achieves new state-of-the-art performance in three challenging datasets, providing up to 108% improvement over BM25 and consistently outperforming strong baselines including ColBERT and RankVicuna. To our knowledge, this is the first work to successfully integrate entity semantics directly into neural attention, establishing a new paradigm for entity-aware information retrieval.

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