Challenge: Combinatorial optimization has long been dominated by manually engineered heuristics, which require substantial expert intuition and implementation overhead.
Approach: They propose a framework that couples an island migration model with elite selection to maintain population diversity.
Outcome: The proposed framework achieves superior accuracy on the Traveling Salesman and Bin Packing Problems.

Similar Papers

SEE: Strategic Exploration and Exploitation for Cohesive In-Context Prompt Optimization (2025.acl-long)

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Challenge: Existing approaches separate the optimization of prompt instructions and in-context learning examples, leading to incohesive, suboptimal results.
Approach: They propose a framework that refines both prompt instructions and in-context learning examples.
Outcome: The proposed framework outperforms state-of-the-art prompt optimization methods on 35 benchmark tasks.
PromptWizard: Optimizing Prompts via Task-Aware, Feedback-Driven Self-Evolution (2025.findings-acl)

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Challenge: Large language models (LLMs) have transformed AI across diverse domains, with prompting being central to their success in guiding model outputs.
Approach: They propose a framework for discrete prompt optimization that generates human-readable prompts using feedback-driven critique and synthesis process.
Outcome: The proposed framework improves prompt quality across 45 tasks and reduces API calls, token usage and overall cost.
Efficient and Accurate Prompt Optimization: the Benefit of Memory in Exemplar-Guided Reflection (2025.acl-long)

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Challenge: Recent work utilizes feedbacks generated from erroneous cases to guide prompt optimization . previous methods rely on computational resources and powerful GPUs .
Approach: They propose an automatic prompt engineering method that leverages feedbacks from erroneous cases to guide prompt optimization.
Outcome: The proposed method surpasses state-of-the-art methods with less steps and lower computational resources.
Heuristic-based Search Algorithm in Automatic Instruction-focused Prompt Optimization: A Survey (2025.findings-acl)

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Challenge: Recent advances in Large Language Models (LLMs) have led to remarkable achievements across a variety of NLP tasks.
Approach: They propose a taxonomy of automatic prompt optimization methods that explore and improve prompts with minimal human oversight.
Outcome: The proposed methods can explore and improve prompts with minimal human oversight.
Self-Renewal Prompt Optimizing with Implicit Reasoning (2024.findings-emnlp)

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Challenge: Recent advances in NLP have been driven by the development of Large Language Models (LLMs).
Approach: They propose a self-renewal approach to optimize LLM outputs to better align with human preferences without supervised fine-tuning.
Outcome: The proposed approach improves outputs to better align with human preferences across LLMs and tasks without supervised fine-tuning.
Bandit-Based Prompt Design Strategy Selection Improves Prompt Optimizers (2025.findings-acl)

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Challenge: Existing prompt optimization methods have found effective prompts, but they often differ from sophisticated prompts carefully designed by human experts.
Approach: They propose to integrate prompt design strategies into prompt optimization by using a Thompson sampling-based approach.
Outcome: The proposed method incorporates prompt design strategies into the prompt optimization process.
GenDLN: Evolutionary Algorithm-Based Stacked LLM Framework for Joint Prompt Optimization (2025.acl-srw)

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Challenge: Large Language Models (LLMs) are increasingly replacing traditional classification and inference models due to their generality, ability to perform a wide range of tasks, and seemingly advanced "reasoning" prompt optimization is a promising alternative to manual/human prompt engineering, but the cost of using LLMs for prompt optimization via commercial APIs remains high.
Approach: They propose an open-source, efficient genetic algorithm-based prompt pair optimization framework that leverages commercial APIs.
Outcome: The proposed approach allows teams with limited resources to efficiently use commercial LLMs for prompt optimization.
Self-Supervised Prompt Optimization (2025.findings-emnlp)

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Challenge: Existing prompt optimization methods rely heavily on external references such as ground truth or by humans, limiting their applicability in real-world scenarios where such data is unavailable or costly to obtain.
Approach: They propose a cost-efficient framework that discovers effective prompts for both closed and open-ended tasks without external reference.
Outcome: The proposed framework outperforms state-of-the-art prompt optimization methods with significantly lower costs and fewer samples.
PromISe: Releasing the Capabilities of LLMs with Prompt Introspective Search (2024.lrec-main)

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Challenge: Existing evaluation benchmarks for large language models use uniform manual prompts, resulting in underestimation of performance.
Approach: They propose a prompt introspective search framework that integrates self-introspect and self-refine to unlock the capabilities of LLMs.
Outcome: The proposed framework significantly boosts the performance of 12 well-known LLMs compared to baseline methods.
Reflection in the Dark: Exposing and Escaping the Black Box in Reflective Prompt Optimization (2026.acl-srw)

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Challenge: Automatic prompt optimization (APO) is a powerful paradigm for improving LLM performance without manual prompt engineering.
Approach: They propose a framework that decouples hypothesis generation from prompt rewriting . they propose VISTA framework that recovers accuracy to 87.57% on same defective seed .
Outcome: The proposed framework outperforms baselines on GSM8K and AIME2025 on a defective seed.

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