tech
April 24, 2026
Submodular Optimization for Text Selection, Passage Reranking & Context Engineering
After my previous article on submodular optimization for fan-out queries in DeepResearch, I received great feedback asking for a deeper dive into submodularity especially in information retrieval and agentic search. Today, I'll introduce two more applications of submodular optimization: text selection and passage reranking. Both tackle the same core challenge—optimal subset selection—that every DeepResearch-like system must solve.
TL;DR
- Introduces text selection and passage reranking as applications of submodular optimization.
- Highlights that both applications focus on the core challenge of optimal subset selection.
- Connects these applications to previous discussions on submodular optimization for fan-out queries in DeepResearch.
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