arXiv AI By Yuval David, Fabiana Fournier, Lior Limonad, Hadar Mulian

Semantic Feature Analysis: Improving Agents Without Searching Over Rollouts

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Semantic Feature Analysis (SFA) is a method that refines agent specifications without performing any rollout-based search. It analyzes existing execution traces, clusters workflow node outputs, extracts semantic feature classes via an extended subject‑verb‑object schema, ranks these features with a decision tree, and injects the most impactful features back into the system prompt. Evaluations on four benchmarks show that SFA consistently outperforms five prompt‑optimisation algorithms and a single‑reflection baseline, especially when rollout costs are high.

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arXiv AI
Aug 12

RLMOpt: Adaptive Prompt Optimization via Recursive Language Models

arXiv:2608. 10471v1 Announce Type: new Abstract: Prompt optimizers automate the search for prompts that improve language-model performance, but existing methods rely on a predefined optimization procedure: the algorithm determines which candidates to explore and how the search progresses, while the language model generates or refines prompt proposals.

By Subhash Bangalore Satheesha, Nirvik Pande, Deepthi Duddempudi, Bharath Dandala
arXiv AI
2d ago

Pay for the Fault, Not the Flow: Label-Free In-Flow Multi-Agent Workflow Optimization

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By Xuehang Guo, Haoyu Wang, Shengyu Chen, Zach Chen, Wei Cheng, Qingyun Wang, Haifeng Chen
arXiv AI
Sep 7

Harbor Adapters and Harbor-Index: Infrastructure and a Curated Meta-Dataset for Large-Scale Agentic Evaluation

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