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Despite achieving remarkable performance, Federated Learning (FL) encounters two important problems, i.e., low training efficiency and limited computational resources. In this paper, we propose a new FL framework, i.e., FedDUMAP, with three…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-08-13 Ji Liu , Juncheng Jia , Hong Zhang , Yuhui Yun , Leye Wang , Yang Zhou , Huaiyu Dai , Dejing Dou

Two common approaches to sequential decision-making are AI planning (AIP) and reinforcement learning (RL). Each has strengths and weaknesses. AIP is interpretable, easy to integrate with symbolic knowledge, and often efficient, but requires…

Artificial Intelligence · Computer Science 2022-09-30 Junkyu Lee , Michael Katz , Don Joven Agravante , Miao Liu , Geraud Nangue Tasse , Tim Klinger , Shirin Sohrabi

We address the problem of agile and rapid locomotion, a key characteristic of quadrupedal and bipedal robots. We present a new algorithm that maintains stability and generates high-speed trajectories by considering the temporal aspect of…

Robotics · Computer Science 2025-11-19 Prakhar Mishra , Amir Hossain Raj , Xuesu Xiao , Dinesh Manocha

Large Language Models (LLMs) have demonstrated remarkable abilities in various language tasks, making them promising candidates for decision-making in robotics. Inspired by Hierarchical Reinforcement Learning (HRL), we propose…

Robotics · Computer Science 2024-10-07 Chuanneng Sun , Songjun Huang , Dario Pompili

Analyzing large scale data has emerged as an important activity for many organizations in the past few years. This large scale data analysis is facilitated by the MapReduce programming and execution model and its implementations, most…

Databases · Computer Science 2012-03-02 Iman Elghandour , Ashraf Aboulnaga

Class-incremental learning (CIL) aims to train a classification model while the number of classes increases phase-by-phase. An inherent challenge of CIL is the stability-plasticity tradeoff, i.e., CIL models should keep stable to retain old…

Machine Learning · Computer Science 2023-06-30 Yaoyao Liu , Yingying Li , Bernt Schiele , Qianru Sun

Adaptive traffic signal control (ATSC) is essential for mitigating urban congestion in modern smart cities, where traffic infrastructure is evolving into interconnected Web-of-Things (WoT) environments with thousands of sensing-and-control…

Machine Learning · Computer Science 2026-03-23 Yaqiao Zhu , Hongkai Wen , Geyong Min , Man Luo

Group Relative Policy Optimization (GRPO) is widely used for reinforcement learning with verifiable rewards, but it often suffers from advantage collapse: when all rollouts in a group receive the same reward, the group yields zero relative…

Machine Learning · Computer Science 2026-04-02 Yu Xia , Canwen Xu , Zhewei Yao , Julian McAuley , Yuxiong He

Imitation learning algorithms learn viable policies by imitating an expert's behavior when reward signals are not available. Generative Adversarial Imitation Learning (GAIL) is a state-of-the-art algorithm for learning policies when the…

Deep active learning (DAL) methods have shown significant improvements in sample efficiency compared to simple random sampling. While these studies are valuable, they nearly always assume that optimal DAL hyperparameter (HP) settings are…

Machine Learning · Computer Science 2024-12-09 Simiao Ren , Saad Lahrichi , Yang Deng , Willie J. Padilla , Leslie Collins , Jordan Malof

Currently, the wide spreading of real-time applications such as VoIP and videos-based applications require more data rates and reduced latency to ensure better quality of service (QoS). A well-designed traffic classification mechanism plays…

Networking and Internet Architecture · Computer Science 2023-06-26 Getahun Wassie Geremew , Jianguo Ding

Federated learning (FL) supports training models on geographically distributed devices. However, traditional FL systems adopt a centralized synchronous strategy, putting high communication pressure and model generalization challenge.…

Machine Learning · Computer Science 2021-11-17 Jing Cao , Zirui Lian , Weihong Liu , Zongwei Zhu , Cheng Ji

Hierarchical reinforcement learning (HRL) is a promising approach to extend traditional reinforcement learning (RL) methods to solve more complex tasks. Yet, the majority of current HRL methods require careful task-specific design and…

Machine Learning · Computer Science 2018-10-08 Ofir Nachum , Shixiang Gu , Honglak Lee , Sergey Levine

Conventional autonomous trading systems struggle to balance computational efficiency and market responsiveness due to their fixed operating frequency. We propose Hi-DARTS, a hierarchical multi-agent reinforcement learning framework that…

Machine Learning · Computer Science 2025-09-16 Hoon Sagong , Heesu Kim , Hanbeen Hong

Horizontal Federated Learning (HFL) is particularly vulnerable to backdoor attacks as adversaries can easily manipulate both the training data and processes to execute sophisticated attacks. In this work, we study the impact of training…

Cryptography and Security · Computer Science 2025-09-09 Simon Lachnit , Ghassan Karame

Agentic Reinforcement Learning (RL) enables LLMs to solve complex tasks by alternating between a data-collection rollout phase and a policy training phase. During rollout, the agent generates trajectories, i.e., multi-step interactions…

Machine Learning · Computer Science 2026-03-31 Zili Zhang , Yinmin Zhong , Chengxu Yang , Chao Jin , Bingyang Wu , Xinming Wei , Yuliang Liu , Xin Jin

In the realm of edge computing, the increasing demand for high Quality of Service (QoS), particularly in dynamic multimedia streaming applications (e.g., Augmented Reality/Virtual Reality and online gaming), has prompted the need for…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-12-29 Cheng Zhang , Yinuo Deng , Hailiang Zhao , Tianlv Chen , Shuiguang Deng

Hierarchical Reinforcement Learning (HRL) is well-suitedd for solving complex tasks by breaking them down into structured policies. However, HRL agents often struggle with efficient exploration and quick adaptation. To overcome these…

Machine Learning · Computer Science 2025-03-18 Arash Khajooeinejad , Fatemeh Sadat Masoumi , Masoumeh Chapariniya

Modern Hybrid Transactional/Analytical Processing (HTAP) systems use an integrated data processing engine that performs analytics on fresh data, which are ingested from a transactional engine. HTAP systems typically consider data freshness…

Databases · Computer Science 2020-04-15 Aunn Raza , Periklis Chrysogelos , Angelos Christos Anadiotis , Anastasia Ailamaki

Federated active learning (FAL) seeks to reduce annotation cost under privacy constraints, yet its effectiveness degrades in realistic settings with severe global class imbalance and highly heterogeneous clients. We conduct a systematic…

Machine Learning · Computer Science 2026-03-12 Chen-Chen Zong , Sheng-Jun Huang