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In the ever-changing and intricate landscape of financial markets, portfolio optimisation remains a formidable challenge for investors and asset managers. Conventional methods often struggle to capture the complex dynamics of market…

机器学习 · 统计学 2025-10-09 Himanshu Choudhary , Arishi Orra , Manoj Thakur

The goal of metric learning is to learn a function that maps samples to a lower-dimensional space where similar samples lie closer than dissimilar ones. Particularly, deep metric learning utilizes neural networks to learn such a mapping.…

计算机视觉与模式识别 · 计算机科学 2021-06-14 Jenny Seidenschwarz , Ismail Elezi , Laura Leal-Taixé

In multi-agent informative path planning (MAIPP), agents must collectively construct a global belief map of an underlying distribution of interest (e.g., gas concentration, light intensity, or pollution levels) over a given domain, based on…

机器人学 · 计算机科学 2023-10-25 Tianze Yang , Yuhong Cao , Guillaume Sartoretti

Deep metric learning (DML) has received much attention in deep learning due to its wide applications in computer vision. Previous studies have focused on designing complicated losses and hard example mining methods, which are mostly…

机器学习 · 计算机科学 2020-06-19 Qi Qi , Yan Yan , Xiaoyu Wang , Tianbao Yang

Deep Reinforcement Learning (DRL) is a trending field of research, showing great promise in challenging problems such as playing Atari, solving Go and controlling robots. While DRL agents perform well in practice we are still lacking the…

人工智能 · 计算机科学 2016-06-17 Nir Baram , Tom Zahavy , Shie Mannor

Distance metric learning (DML) has been successfully applied to object classification, both in the standard regime of rich training data and in the few-shot scenario, where each category is represented by only a few examples. In this work,…

计算机视觉与模式识别 · 计算机科学 2018-11-20 Leonid Karlinsky , Joseph Shtok , Sivan Harary , Eli Schwartz , Amit Aides , Rogerio Feris , Raja Giryes , Alex M. Bronstein

In order for robots to perform mission-critical tasks, it is essential that they are able to quickly adapt to changes in their environment as well as to injuries and or other bodily changes. Deep reinforcement learning has been shown to be…

机器人学 · 计算机科学 2017-10-19 Ayaka Kume , Eiichi Matsumoto , Kuniyuki Takahashi , Wilson Ko , Jethro Tan

Deep reinforcement learning (DRL) is a booming area of artificial intelligence. Many practical applications of DRL naturally involve more than one collaborative learners, making it important to study DRL in a multi-agent context. Previous…

机器学习 · 计算机科学 2019-10-22 Gang Chen

Deep reinforcement learning (DRL) has recently shown its success in tackling complex combinatorial optimization problems. When these problems are extended to multiobjective ones, it becomes difficult for the existing DRL approaches to…

人工智能 · 计算机科学 2022-02-15 Zizhen Zhang , Zhiyuan Wu , Hang Zhang , Jiahai Wang

The objective of deep metric learning (DML) is to learn embeddings that can capture semantic similarity and dissimilarity information among data points. Existing pairwise or tripletwise loss functions used in DML are known to suffer from…

计算机视觉与模式识别 · 计算机科学 2021-03-22 Xinshao Wang , Yang Hua , Elyor Kodirov , Neil M. Robertson

Diffusion Language Models (DLMs) offer attractive advantages over Auto-Regressive (AR) models, such as full-attention parallel decoding and flexible generation. However, standard DLM training uses a static, single-step masked prediction…

计算与语言 · 计算机科学 2026-04-14 Zehua Pei , Hui-Ling Zhen , Weizhe Lin , Sinno Jialin Pan , Yunhe Wang , Mingxuan Yuan , Bei Yu

Deep Metric Learning (DML) approaches learn to represent inputs to a lower-dimensional latent space such that the distance between representations in this space corresponds with a predefined notion of similarity. This paper investigates how…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Niall O' Mahony , Sean Campbell , Anderson Carvalho , Lenka Krpalkova , Gustavo Velasco-Hernandez , Daniel Riordan , Joseph Walsh

Deep Metric Learning (DML) is a group of techniques that aim to measure the similarity between objects through the neural network. Although the number of DML methods has rapidly increased in recent years, most previous studies cannot…

机器学习 · 计算机科学 2022-12-02 Chenkang Zhang , Lei Luo , Bin Gu

Deep networks trained on the source domain show degraded performance when tested on unseen target domain data. To enhance the model's generalization ability, most existing domain generalization methods learn domain invariant features by…

计算机视觉与模式识别 · 计算机科学 2023-03-06 Liwei Yang , Xiang Gu , Jian Sun

Data mixing augmentation has been widely applied to improve the generalization ability of deep neural networks. Recently, offline data mixing augmentation, e.g. handcrafted and saliency information-based mixup, has been gradually replaced…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Huafeng Qin , Xin Jin , Yun Jiang , Mounim A. El-Yacoubi , Xinbo Gao

As a big data application, extreme multilabel classification has emerged as an important research topic with applications in ranking and recommendation of products and items. A scalable hybrid distributed and shared memory implementation of…

分布式、并行与集群计算 · 计算机科学 2021-12-21 Pawan Kumar

In this paper, a novel Multi-agent Reinforcement Learning (MARL) approach, Multi-Agent Continuous Dynamic Policy Gradient (MACDPP) was proposed to tackle the issues of limited capability and sample efficiency in various scenarios controlled…

系统与控制 · 电气工程与系统科学 2023-09-27 Chenyang Miao , Yunduan Cui , Huiyun Li , Xinyu Wu

Distance metric learning (DML) is a critical factor for image analysis and pattern recognition. To learn a robust distance metric for a target task, we need abundant side information (i.e., the similarity/dissimilarity pairwise constraints…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Yong Luo , Tongliang Liu , Dacheng Tao , Chao Xu

Diffusion models (DMs) have shown promising results on single-image super-resolution and other image-to-image translation tasks. Benefiting from more computational resources and longer inference times, they are able to yield more realistic…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Yuanting Fan , Chengxu Liu , Nengzhong Yin , Changlong Gao , Xueming Qian

Despite rapid advancements, machine learning, particularly deep learning, is hindered by the need for large amounts of labeled data to learn meaningful patterns without overfitting and immense demands for computation and storage, which…

机器学习 · 计算机科学 2025-06-30 Xiaobo Zhao , Aaron Hurst , Panagiotis Karras , Daniel E. Lucani