arXiv Machine Learning

Explainable Information Processing in Particle Swarm Optimization through Landscape and Search Behavior Analysis

The paper introduces a dual‑perspective explainability framework for Particle Swarm Optimization (PSO). From a landscape viewpoint, it uses Exploratory Landscape Analysis (ELA) and machine‑learning classifiers to predict topology‑specific hyperparameters for unseen problems. From an algorithmic viewpoint, it incorporates IOHxplainer and Search Trajectory Networks (STN) with new metrics—Connectivity Density, Fragmentation Score, and Search Efficiency—to visualize and quantify PSO’s search organization and transition effectiveness across 24 benchmark functions and multiple topologies.

arXiv Machine Learning
Jul 1

Partition-Guided Distance Saliency: Bridging Decision and Objective Spaces in Many-Objective Optimization

arXiv:2606. 30836v1 Announce Type: new Abstract: Explainability in Many-Objective Optimization (MaO) is currently hindered by the escalating complexity of the Pareto front, which renders the relationship between high-dimensional decision variables and objective outcomes increasingly opaque.

By Cl\'audio L\'ucio do Val Lopes, Fl\'avio Vin\'icius Cruzeiro Martins, Elizabeth Fialho Wanner
arXiv AI
Sep 10

An Evolutionary Framework for Automatic Optimization Benchmark Generation via Large Language Models

The paper introduces LLM-EBG, an evolutionary framework that uses a large language model as a generative operator to automatically create optimization benchmarks. By generating unconstrained single-objective continuous minimization problems expressed as mathematical formulas, the framework can produce benchmarks that consistently favor a target algorithm over a comparison algorithm in over 80% of trials. Landscape analysis shows that these generated problems exhibit distinct geometric traits, such as sensitivity to variable scaling, reflecting the search behaviors of different optimization methods.

By Yuhiro Ono, Tomohiro Harada, Yukiya Miura