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This paper introduces the QMDP-net, a neural network architecture for planning under partial observability. The QMDP-net combines the strengths of model-free learning and model-based planning. It is a recurrent policy network, but it…

人工智能 · 计算机科学 2017-11-06 Peter Karkus , David Hsu , Wee Sun Lee

Edge computing faces unprecedented resource orchestration challenges from multi-dimensional heterogeneity across device architectures, diverse task requirements in CPU-intensive, GPU-intensive, I/O-intensive, and dynamic network conditions.…

分布式、并行与集群计算 · 计算机科学 2026-05-12 Jianyong Zhu , Hao Chen , Juan Zhang , Fangda Guo , Albert Y. Zomaya , Renyu Yang

We present a novel algorithm to train a deep Q-learning agent using natural-gradient techniques. We compare the original deep Q-network (DQN) algorithm to its natural-gradient counterpart, which we refer to as NGDQN, on a collection of…

机器学习 · 计算机科学 2018-11-15 Ethan Knight , Osher Lerner

Penetration testing the organised attack of a computer system in order to test existing defences has been used extensively to evaluate network security. This is a time consuming process and requires in-depth knowledge for the establishment…

人工智能 · 计算机科学 2021-09-15 Khuong Tran , Ashlesha Akella , Maxwell Standen , Junae Kim , David Bowman , Toby Richer , Chin-Teng Lin

The challenge of creating domain-centric embeddings arises from the abundance of unstructured data and the scarcity of domain-specific structured data. Conventional embedding techniques often rely on either modality, limiting their…

机器学习 · 计算机科学 2024-10-29 Sharadind Peddiraju , Srini Rajagopal

Image based Deep Feature Quality Metrics (DFQMs) have been shown to better correlate with subjective perceptual scores over traditional metrics. The fundamental focus of these DFQMs is to exploit internal representations from a large scale…

图像与视频处理 · 电气工程与系统科学 2023-03-01 Darren Ramsook , Anil Kokaram

The impact of Radio link failure (RLF) has been largely ignored in designing handover algorithms, although RLF is a major contributor towards causing handover failure (HF). RLF can cause HF if it is detected during an ongoing handover. The…

网络与互联网体系结构 · 计算机科学 2025-10-08 Kotha Kartheek , Shankar K. Ghosh , Megha Iyengar , Vinod Sharma , Souvik Deb

This study presents a hierarchical mining framework for high-dimensional imbalanced data, leveraging a depth graph model to address the inherent performance limitations of conventional approaches in handling complex, high-dimensional data…

机器学习 · 计算机科学 2025-02-07 Yijiashun Qi , Quanchao Lu , Shiyu Dou , Xiaoxuan Sun , Muqing Li , Yankaiqi Li

Hierarchical data arise in countless domains, from biological taxonomies and organizational charts to legal codes and knowledge graphs. Residual Quantization (RQ) is widely used to generate discrete, multitoken representations for such data…

机器学习 · 计算机科学 2025-05-20 Piotr Piękos , Subhradeep Kayal , Alexandros Karatzoglou

Embodied AI agents exploit reward signal flaws through reward hacking, achieving high proxy scores while failing true objectives. We introduce Mechanistically Interpretable Task Decomposition (MITD), a hierarchical transformer architecture…

机器学习 · 计算机科学 2025-11-25 Subramanyam Sahoo , Jared Junkin

The uncertainties from distributed energy resources (DERs) bring significant challenges to the real-time operation of microgrids. In addition, due to the nonlinear constraints in the AC power flow equation and the nonlinearity of the…

系统与控制 · 电气工程与系统科学 2023-04-06 Hang Shuai , Xiaomeng Ai , Jiakun Fang , Wei Yao , Jinyu Wen

Budget planning and maintenance optimization are crucial for infrastructure asset management, ensuring cost-effectiveness and sustainability. However, the complexity arising from combinatorial action spaces, diverse asset deterioration,…

人工智能 · 计算机科学 2025-07-28 Amir Fard , Arnold X. -X. Yuan

Federated learning enables a collaborative training and optimization of global models among a group of devices without sharing local data samples. However, the heterogeneity of data in federated learning can lead to unfair representation of…

机器学习 · 计算机科学 2023-11-03 Weikang Chen , Junping Du , Yingxia Shao , Jia Wang , Yangxi Zhou

Object packing by autonomous robots is an im-portant challenge in warehouses and logistics industry. Most conventional data-driven packing planning approaches focus on regular cuboid packing, which are usually heuristic and limit the…

机器人学 · 计算机科学 2022-11-18 Sichao Huang , Ziwei Wang , Jie Zhou , Jiwen Lu

Depth map records distance between the viewpoint and objects in the scene, which plays a critical role in many real-world applications. However, depth map captured by consumer-grade RGB-D cameras suffers from low spatial resolution. Guided…

计算机视觉与模式识别 · 计算机科学 2021-12-13 Zhiwei Zhong , Xianming Liu , Junjun Jiang , Debin Zhao , Zhiwen Chen , Xiangyang Ji

Automatic detection of abnormal cervical cells from Thinprep Cytologic Test (TCT) images is a critical component in the development of intelligent computer-aided diagnostic systems. However, existing algorithms typically fail to effectively…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Jincheng Li , Danyang Dong , Menglin Zheng , Jingbo Zhang , Yueqin Hang , Lichi Zhang , Lili Zhao

Both local details and global context are crucial in medical image segmentation, and effectively integrating them is essential for achieving high accuracy. However, existing mainstream methods based on CNN-Transformer hybrid architectures…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Dayu Tan , Zhenpeng Xu , Yansen Su , Xin Peng , Chunhou Zheng , Weimin Zhong

Sequence models in reinforcement learning require task knowledge to estimate the task policy. This paper presents a hierarchical algorithm for learning a sequence model from demonstrations. The high-level mechanism guides the low-level…

机器学习 · 计算机科学 2022-09-22 André Correia , Luís A. Alexandre

This paper introduces a new scalable multi-objective deep reinforcement learning (MODRL) framework based on deep Q-networks. We develop a high-performance MODRL framework that supports both single-policy and multi-policy strategies, as well…

机器学习 · 计算机科学 2020-09-09 Thanh Thi Nguyen , Ngoc Duy Nguyen , Peter Vamplew , Saeid Nahavandi , Richard Dazeley , Chee Peng Lim

Double Q-learning is a classical control algorithm that mitigates the maximization bias of Q-learning. To do so, it explicitly trains two independent action-value functions and uses them to decouple action-selection and action-evaluation…

机器学习 · 计算机科学 2026-05-18 Prabhat Nagarajan , Martha White , Marlos C. Machado