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Stereo matching is the key step in estimating depth from two or more images. Recently, some tree-based non-local stereo matching methods have been proposed, which achieved state-of-the-art performance. The algorithms employed some tree…

计算机视觉与模式识别 · 计算机科学 2015-09-29 Xuan Luo , Xuejiao Bai , Shuo Li , Hongtao Lu , Sei-ichiro Kamata

Mixture proportion estimation (MPE) is the problem of estimating the weight of a component distribution in a mixture, given samples from the mixture and component. This problem constitutes a key part in many "weakly supervised learning"…

机器学习 · 计算机科学 2016-06-01 Harish G. Ramaswamy , Clayton Scott , Ambuj Tewari

Bayesian Optimization (BO) has shown great promise for the global optimization of functions that are expensive to evaluate, but despite many successes, standard approaches can struggle in high dimensions. To improve the performance of BO,…

机器学习 · 计算机科学 2022-06-17 Sebastian Ament , Carla Gomes

In this paper, we introduce a new framework for generating synthetic vascular trees, based on rigorous model-based mathematical optimization. Our main contribution is the reformulation of finding the optimal global tree geometry into a…

生物物理 · 物理学 2022-07-18 Etienne Jessen , Marc C. Steinbach , Charlotte Debbaut , Dominik Schillinger

Bayesian Optimization (BO) has the potential to solve various combinatorial tasks, ranging from materials science to neural architecture search. However, BO requires specialized kernels to effectively model combinatorial domains. Recent…

机器学习 · 计算机科学 2025-10-31 Colin Doumont , Victor Picheny , Viacheslav Borovitskiy , Henry Moss

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a pivotal technique for enhancing the reasoning capabilities of Large Language Models (LLMs). However, the de facto practice of mainstream RL algorithms is to treat all…

机器学习 · 计算机科学 2026-05-12 Xincheng Yao , Ruoqi Li , Cheng Chen , Daoxin Zhang , Yi Wu , Yao Hu , Chongyang Zhang

Decision tree (and its extensions such as Gradient Boosting Decision Trees and Random Forest) is a widely used machine learning algorithm, due to its practical effectiveness and model interpretability. With the emergence of big data, there…

机器学习 · 计算机科学 2016-11-07 Qi Meng , Guolin Ke , Taifeng Wang , Wei Chen , Qiwei Ye , Zhi-Ming Ma , Tie-Yan Liu

The recent advancement of deep learning architectures, neural networks, and the combination of abundant financial data and powerful computers are transforming finance, leading us to develop an advanced method for predicting future stock…

机器学习 · 计算机科学 2024-06-06 Bivas Dinda

We consider the problem of optimizing expensive black-box functions over high-dimensional combinatorial spaces which arises in many science, engineering, and ML applications. We use Bayesian Optimization (BO) and propose a novel surrogate…

A structured version of derivative-free random pattern search optimization algorithms is introduced which is able to exploit coordinate partially separable structure (typically associated with sparsity) often present in unconstrained and…

最优化与控制 · 数学 2021-01-13 Margherita Porcelli , Philippe L. Toint

Existing LVLM-based reasoning segmentation methods often suffer from imprecise segmentation results and hallucinations in their text responses. This paper introduces POPEN, a novel framework designed to address these issues and achieve…

计算机视觉与模式识别 · 计算机科学 2025-04-02 Lanyun Zhu , Tianrun Chen , Qianxiong Xu , Xuanyi Liu , Deyi Ji , Haiyang Wu , De Wen Soh , Jun Liu

Recent advances in implicit neural representations show great promise when it comes to generating numerical solutions to partial differential equations. Compared to conventional alternatives, such representations employ parameterized neural…

机器学习 · 计算机科学 2021-11-29 Jonas Zehnder , Yue Li , Stelian Coros , Bernhard Thomaszewski

Preferential Bayesian Optimization (PBO) aims to find a decision-maker's most preferred solution in as few pairwise comparisons as possible. Existing approaches rely on Gaussian Process (GP) surrogates, which provide strong performance but…

机器学习 · 计算机科学 2026-05-11 Nick Leenders , Thomas Quadt , Boris Cule , Roy Lindelauf , Herman Monsuur , Joost van Oijen , Mark Voskuijl

Steiner Tree Packing (STP) is a notoriously hard problem in classical complexity theory, which is of practical relevance to VLSI circuit design. Previous research has approached this problem by providing heuristic or approximate algorithms.…

数据结构与算法 · 计算机科学 2025-05-15 Niko Hastrich , Kirill Simonov

A new topology optimization method called the Proportional Topology Optimization (PTO) is presented. As a non-gradient method, PTO is simple to understand, easy to implement, and is also efficient and accurate at the same time. It is…

计算工程、金融与科学 · 计算机科学 2016-05-30 Emre Biyikli , Albert C. To

In this paper, we propose the distributed tree kernels (DTK) as a novel method to reduce time and space complexity of tree kernels. Using a linear complexity algorithm to compute vectors for trees, we embed feature spaces of tree fragments…

机器学习 · 计算机科学 2012-06-22 Fabio Massimo Zanzotto , Lorenzo Dell'Arciprete

Tree ensembles are machine learning models with strong predictive performance and interpretability, and remain widely used for tabular data. Standard pruning methods for tree ensembles typically optimize an accuracy-compression trade-off…

机器学习 · 计算机科学 2026-05-28 Haruki Yajima , Yusuke Matsui

Robots often have to operate in discrete partially observable worlds, where the states of world are only observable at runtime. To react to different world states, robots need contingencies. However, computing contingencies is costly and…

机器人学 · 计算机科学 2023-09-20 Janis Eric Freund , Camille Phiquepal , Andreas Orthey , Marc Toussaint

Studies of image captioning are shifting towards a trend of a fully end-to-end paradigm by leveraging powerful visual pre-trained models and transformer-based generation architecture for more flexible model training and faster inference…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Pengpeng Zeng , Jinkuan Zhu , Jingkuan Song , Lianli Gao

An application area of vertex enumeration problem (VEP) is the usage within objective space based linear/convex {vector} optimization algorithms whose aim is to generate (an approximation of) the Pareto frontier. In such algorithms, VEP,…

最优化与控制 · 数学 2020-10-30 Irfan Caner Kaya , Firdevs Ulus