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Optimizing black-box functions in high-dimensional search spaces has been known to be challenging for traditional Bayesian Optimization (BO). In this paper, we introduce HiBO, a novel hierarchical algorithm integrating global-level search…

机器学习 · 计算机科学 2025-04-04 Wenxuan Li , Taiyi Wang , Eiko Yoneki

This article develops a Bayesian optimization (BO) method which acts directly over raw strings, proposing the first uses of string kernels and genetic algorithms within BO loops. Recent applications of BO over strings have been hindered by…

机器学习 · 计算机科学 2020-10-05 Henry B. Moss , Daniel Beck , Javier Gonzalez , David S. Leslie , Paul Rayson

Bayesian optimization (BO) is a powerful black-box optimization framework that looks to efficiently learn the global optimum of an unknown system by systematically trading-off between exploration and exploitation. However, the use of BO as…

最优化与控制 · 数学 2023-03-28 Dinesh Krishnamoorthy , Joel A. Paulson

The dynamic dispatch (DD) of battery energy storage systems (BESSs) in microgrids integrated with volatile energy resources is essentially a multiperiod stochastic optimization problem (MSOP). Because the life span of a BESS is…

系统与控制 · 电气工程与系统科学 2020-07-07 Yuwei Shang , Wenchuan Wu , Jianbo Guo , Zhe Lv , Zhao Ma , Wanxing Sheng , Ran Chen

Tree search-based methods have made significant progress in enhancing the code generation capabilities of large language models. However, due to the difficulty in effectively evaluating intermediate algorithmic steps and the inability to…

人工智能 · 计算机科学 2025-12-18 Yuanyuan Lin , Xiangyu Ouyang , Teng Zhang , Kaixin Sui

Bayesian Optimization (BO) is an effective approach for global optimization of black-box functions when function evaluations are expensive. Most prior works use Gaussian processes to model the black-box function, however, the use of kernels…

机器学习 · 计算机科学 2023-09-25 Dat Phan-Trong , Hung Tran-The , Sunil Gupta

In this paper we present TreEnhance, an automatic method for low-light image enhancement capable of improving the quality of digital images. The method combines tree search theory, and in particular the Monte Carlo Tree Search (MCTS)…

计算机视觉与模式识别 · 计算机科学 2022-12-15 Marco Cotogni , Claudio Cusano

Bayesian optimization (BO) is a prominent approach to optimizing expensive-to-evaluate black-box functions. The massive computational capability of edge devices such as mobile phones, coupled with privacy concerns, has led to a surging…

机器学习 · 计算机科学 2020-10-23 Zhongxiang Dai , Kian Hsiang Low , Patrick Jaillet

Optimizing expensive to evaluate black-box functions over an input space consisting of all permutations of d objects is an important problem with many real-world applications. For example, placement of functional blocks in hardware design…

机器学习 · 计算机科学 2021-12-03 Aryan Deshwal , Syrine Belakaria , Janardhan Rao Doppa , Dae Hyun Kim

With the aim of improving performance in Markov Decision Problem in an Off-Policy setting, we suggest taking inspiration from what is done in Offline Reinforcement Learning (RL). In Offline RL, it is a common practice during policy learning…

人工智能 · 计算机科学 2024-10-29 Jérôme Arjonilla , Abdallah Saffidine , Tristan Cazenave

The discovery of patterns that accurately discriminate one class label from another remains a challenging data mining task. Subgroup discovery (SD) is one of the frameworks that enables to elicit such interesting hypotheses from labeled…

数据结构与算法 · 计算机科学 2017-12-07 Guillaume Bosc , Jean-François Boulicaut , Chedy Raïssi , Mehdi Kaytoue

There exists a broad class of sequencing problems, for example, in proteins and polymers that can be formulated as a heuristic search algorithm that involve decision making akin to a computer game. AI gaming algorithms such as Monte Carlo…

软凝聚态物质 · 物理学 2020-06-08 Tarak K Patra , Troy D. Loeffler , Subramanian K R S Sankaranarayanan

Online solvers for partially observable Markov decision processes have difficulty scaling to problems with large action spaces. Monte Carlo tree search with progressive widening attempts to improve scaling by sampling from the action space…

人工智能 · 计算机科学 2021-11-04 John Mern , Anil Yildiz , Zachary Sunberg , Tapan Mukerji , Mykel J. Kochenderfer

Bayesian optimization (BO) is one of the most powerful strategies to solve computationally expensive-to-evaluate blackbox optimization problems. However, BO methods are conventionally used for optimization problems of small dimension…

最优化与控制 · 数学 2025-02-10 Rémy Priem , Youssef Diouane , Nathalie Bartoli , Sylvain Dubreuil , Paul Saves

While Monte Carlo Tree Search (MCTS) shows promise in Large Language Model (LLM) based Automatic Heuristic Design (AHD), it suffers from a critical over-exploitation tendency under the limited computational budgets required for heuristic…

机器学习 · 计算机科学 2026-02-03 Kezhao Lai , Yutao Lai , Hai-Lin Liu

Bayesian Optimization (BO) is an effective method for optimizing expensive-to-evaluate black-box functions with a wide range of applications for example in robotics, system design and parameter optimization. However, scaling BO to problems…

系统与控制 · 电气工程与系统科学 2020-01-22 Lukas P. Fröhlich , Edgar D. Klenske , Christian G. Daniel , Melanie N. Zeilinger

Decision trees have found widespread application within the machine learning community due to their flexibility and interpretability. This paper is directed towards learning decision trees from data using a Bayesian approach, which is…

机器学习 · 计算机科学 2023-12-05 Jodie A. Cochrane , Adrian G. Wills , Sarah J. Johnson

Bayesian Optimization (BO) is a powerful tool for black-box optimization, but its application to high-dimensional permutation spaces is severely limited by the challenge of defining scalable representations. The current state-of-the-art BO…

机器学习 · 计算机科学 2025-09-26 Zikai Xie , Linjiang Chen

This paper proposes a novel reinforcement learning (RL) algorithm using improved Monte Carlo tree search (IMCTS) formulation for discrete optimum design of truss structures. IMCTS with multiple root nodes includes update process, the best…

人工智能 · 计算机科学 2024-08-08 Fu-Yao Ko , Katsuyuki Suzuki , Kazuo Yonekura

To reduce global carbon emissions and limit climate change, controlling energy consumption in buildings is an important piece of the puzzle. Here, we specifically focus on using a demand response (DR) algorithm to limit the energy…

系统与控制 · 电气工程与系统科学 2024-05-22 Fabio Pavirani , Gargya Gokhale , Bert Claessens , Chris Develder