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Xiang Xia

3 accepted papers

2026

Automated Random Embedding for Practical Bayesian Optimization with Unknown Effective Dimension

IJCAI 2026

Bayesian optimization is widely employed for optimizing complex black-box functions but struggles with the curse of dimensionality. Random embedding, as a dimension reduction strategy, simplifies tasks that possess the effective dimension by optimizing within a low-dimensional subspace. However, det

Cited by 0Scholar
2026

Diversity-Driven Offline Multi-Objective Optimization via Bi-Level Pareto Set Learning

ICML 2026poster

Multi-objective optimization (MOO) has emerged as a powerful approach to solving complex optimization problems involving multiple objectives. In many practical scenarios, function evaluations are unavailable or prohibitively expensive, necessitating optimization solely based on a fixed offline datas…

Cited by 0SourceScholar
2025

Relation-Augmented Dueling Bayesian Optimization via Preference Propagation

IJCAI 2025

In black-box optimization, when directly evaluating the function values of solutions is very costly or infeasible, access to the objective function is often limited to comparing pairs of solutions, which yields dueling black-box optimization. Dueling optimization is solely based on pairwise preferen