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Solving robotic navigation tasks via reinforcement learning (RL) is challenging due to their sparse reward and long decision horizon nature. However, in many navigation tasks, high-level (HL) task representations, like a rough floor plan,…

Robotics · Computer Science 2021-11-08 Jan Wöhlke , Felix Schmitt , Herke van Hoof

This paper proposes a momentum-constrained hybrid heuristic trajectory optimization framework (MHHTOF) tailored for assistive navigation in visually impaired scenarios, integrating trajectory sampling generation, optimization and evaluation…

Robotics · Computer Science 2025-12-08 Yuting Zeng , Zhiwen Zheng , You Zhou , JiaLing Xiao , Yongbin Yu , Manping Fan , Bo Gong , Liyong Ren

Purpose: Surgical workflow recognition enables context-aware assistance and skill assessment in computer-assisted interventions. Despite recent advances, current methods suffer from two critical challenges: prediction jitter across…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Yueyao Chen , Kai-Ni Wang , Dario Tayupo , Arnaud Huaulm'e , Krystel Nyangoh Timoh , Pierre Jannin , Qi Dou

Real-world training data is often noisy; for example, human annotators assign conflicting class labels to the same instances. Partial-label learning (PLL) is a weakly supervised learning paradigm that allows training classifiers in this…

Machine Learning · Computer Science 2025-10-27 Tobias Fuchs , Florian Kalinke

The increasing use of robots in unstructured environments necessitates the development of effective perception and navigation strategies to enable field robots to successfully perform their tasks. In particular, it is key for such robots to…

Robotics · Computer Science 2025-04-29 Andre Schreiber , Katherine Driggs-Campbell

Class-Incremental Learning (CIL) enables models to learn new classes continually while preserving past knowledge. Recently, vision-language models like CLIP offer transferable features via multi-modal pre-training, making them well-suited…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Tao Hu , Lan Li , Zhen-Hao Xie , Da-Wei Zhou

Visual Place Recognition (VPR) determines a query image's geographic location by matching it against geotagged databases. However, existing methods struggle with perceptual aliasing caused by irrelevant regions and inefficient re-ranking…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Shunpeng Chen , Yukun Song , Changwei Wang , Rongtao Xu , Kexue Fu , Longxiang Gao , Li Guo , Ruisheng Wang , Shibiao Xu

While self-supervised learning has been shown to benefit a number of vision tasks, existing techniques mainly focus on image-level manipulation, which may not generalize well to downstream tasks at patch or pixel levels. Moreover, existing…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Cheng-Yen Hsieh , Chih-Jung Chang , Fu-En Yang , Yu-Chiang Frank Wang

Signal Temporal Logic (STL) has emerged as an expressive language for reasoning intricate planning objectives. However, existing STL-based methods often assume full observation and known dynamics, which imposes constraints on real-world…

Robotics · Computer Science 2025-08-27 Peiran Liu , Yiting He , Yihao Qin , Hang Zhou , Yiding Ji

Weakly supervised temporal action localization is a challenging task as only the video-level annotation is available during the training process. To address this problem, we propose a two-stage approach to fully exploit multi-resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Rui Su , Dong Xu , Luping Zhou , Wanli Ouyang

Weakly supervised temporal action localization (WTAL) aims to detect action instances in untrimmed videos using only video-level annotations. Since many existing works optimize WTAL models based on action classification labels, they…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Geuntaek Lim , Hyunwoo Kim , Joonsoo Kim , Yukyung Choi

Conditional Semantic Textual Similarity (C-STS) measures the semantic proximity between text segments under a specific condition, thereby overcoming the ambiguity inherent in traditional STS. However, existing methods are largely confined…

Computation and Language · Computer Science 2026-03-03 Zixin Song , Bowen Zhang , Qian-Wen Zhang , Di Yin , Xing Sun , Chunping Li

Interpretability is essential for deploying object detection systems in critical applications, especially under low-quality imaging conditions that degrade visual information and increase prediction uncertainty. Existing methods either…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Jianlin Xiang , Linhui Dai , Xue Yang , Chaolei Yang , Yanshan Li

Impressive performance on point cloud semantic segmentation has been achieved by fully-supervised methods with large amounts of labelled data. As it is labour-intensive to acquire large-scale point cloud data with point-wise labels, many…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Zongyi Xu , Bo Yuan , Shanshan Zhao , Qianni Zhang , Xinbo Gao

While the rapid progress of deep learning fuels end-to-end reinforcement learning (RL), direct application, especially in high-dimensional space like robotic scenarios still suffers from low sample efficiency. Therefore State Representation…

Recent weakly supervised semantic segmentation (WSSS) methods strive to incorporate contextual knowledge to improve the completeness of class activation maps (CAM). In this work, we argue that the knowledge bias between instances and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Feilong Tang , Zhongxing Xu , Zhaojun Qu , Wei Feng , Xingjian Jiang , Zongyuan Ge

Reinforcement Learning (RL) provides a powerful framework for decision-making in complex environments. However, implementing RL in hardware-efficient and bio-inspired ways remains a challenge. This paper presents a novel Spiking Neural…

Neural and Evolutionary Computing · Computer Science 2023-08-09 Sergio F. Chevtchenko , Yeshwanth Bethi , Teresa B. Ludermir , Saeed Afshar

Continual learning (CL) enables models to adapt to new tasks and environments without forgetting previously learned knowledge. While current CL setups have ignored the relationship between labels in the past task and the new task with or…

Machine Learning · Computer Science 2023-08-29 Byung Hyun Lee , Okchul Jung , Jonghyun Choi , Se Young Chun

Reinforcement Learning (RL) struggles in problems with delayed rewards, and one approach is to segment the task into sub-tasks with incremental rewards. We propose a framework called Hierarchical Inverse Reinforcement Learning (HIRL), which…

Robotics · Computer Science 2016-04-25 Sanjay Krishnan , Animesh Garg , Richard Liaw , Lauren Miller , Florian T. Pokorny , Ken Goldberg

The increasing complexity of modern applications demands wireless networks capable of real time adaptability and efficient resource management. The Open Radio Access Network (O-RAN) architecture, with its RAN Intelligent Controller (RIC)…

Artificial Intelligence · Computer Science 2025-12-17 Fatemeh Lotfi , Fatemeh Afghah
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