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#retrieval

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Tag · #retrieval
DAY 01September 16, 2026 SEP 16 · 20262 SUMMARIES
AI EngineerAI & LLMs

Multiscale Indexing: Solving the Fixed Chunk Size Trap

Fixed chunk sizes are a form of lossy compression that creates a 20-40% recall gap. Instead of tuning chunk sizes, index data at multiple scales and use Reciprocal Rank Fusion (RRF) to merge results for significantly higher accuracy.

AI Engineer
AI EngineerAI & LLMs

Why BM25 is the Secret Weapon for Agentic Search

BM25 is seeing a resurgence in agentic workflows because LLMs act as 'super-users' who can write complex, multi-step queries that exploit the precision of lexical matching, which is often more effective and explainable than dense embeddings.

DAY 02June 16, 2026 JUN 16 · 20261 SUMMARIES
arXiv cs.AIAI & LLMs

Scaling Agentic Search with Dynamic Workspace Expansion

DR-DCI improves agentic search by combining retriever-based scalability with local terminal-style operations, allowing agents to dynamically pull documents into a workspace for precise analysis.

arXiv cs.AI
DAY 03June 7, 2026 JUN 7 · 20261 SUMMARIES
MarkTechPostAI & LLMs

Harness-1: Offloading Bookkeeping to Improve Search Agent Performance

Harness-1 improves retrieval performance by separating search policy from state management, using a stateful harness to handle bookkeeping and memory, allowing the 20B model to focus on semantic decisions.

MarkTechPost

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