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As 3D perception problems grow in popularity and the need for large-scale labeled datasets for LiDAR semantic segmentation increase, new methods arise that aim to reduce the necessity for dense annotations by employing weakly-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Ozan Unal , Dengxin Dai , Lukas Hoyer , Yigit Baran Can , Luc Van Gool

Understanding the long-term impact of algorithmic interventions on society is vital to achieving responsible AI. Traditional evaluation strategies often fall short due to the complex, adaptive and dynamic nature of society. While…

Machine Learning · Computer Science 2024-08-26 Emmanuel Klu , Sameer Sethi , DJ Passey , Donald Martin

Applying Reinforcement Learning (RL) to sequence generation models enables the direct optimization of long-term rewards (\textit{e.g.,} BLEU and human feedback), but typically requires large-scale sampling over a space of action sequences.…

Computation and Language · Computer Science 2023-08-07 Chenglong Wang , Hang Zhou , Yimin Hu , Yifu Huo , Bei Li , Tongran Liu , Tong Xiao , Jingbo Zhu

An effective method for combining frozen large language models (LLM) and visual encoders involves a resampler module that creates a `visual prompt' which is provided to the LLM, along with the textual prompt. While this approach has enabled…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Georgios Pantazopoulos , Alessandro Suglia , Oliver Lemon , Arash Eshghi

Reinforcement learning is able to solve complex sequential decision-making tasks but is currently limited by sample efficiency and required computation. To improve sample efficiency, recent work focuses on model-based RL which interleaves…

Machine Learning · Computer Science 2023-06-19 Yi Zhao , Wenshuai Zhao , Rinu Boney , Juho Kannala , Joni Pajarinen

While reinforcement learning (RL) has been successful in natural language processing (NLP) domains such as dialogue generation and text-based games, it typically faces the problem of sparse rewards that leads to slow or no convergence.…

Computation and Language · Computer Science 2020-10-07 Ameet Deshpande , Eve Fleisig

Autonomous navigation in dynamic environments is a complex but essential task for autonomous robots, with recent deep reinforcement learning approaches showing promising results. However, the complexity of the real world makes it infeasible…

Robotics · Computer Science 2025-04-29 Diego Martinez-Baselga , Luis Riazuelo , Luis Montano

Visual scene understanding is an important capability that enables robots to purposefully act in their environment. In this paper, we propose a novel approach to object-class segmentation from multiple RGB-D views using deep learning. We…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Lingni Ma , Jörg Stückler , Christian Kerl , Daniel Cremers

With the recent growth of urban mapping and autonomous driving efforts, there has been an explosion of raw 3D data collected from terrestrial platforms with lidar scanners and color cameras. However, due to high labeling costs, ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Kyle Genova , Xiaoqi Yin , Abhijit Kundu , Caroline Pantofaru , Forrester Cole , Avneesh Sud , Brian Brewington , Brian Shucker , Thomas Funkhouser

In this paper, we aim to tackle the task of semi-supervised video object segmentation across a sequence of frames where only the ground-truth segmentation of the first frame is provided. The challenges lie in how to online update the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Mingjie Sun , Jimin Xiao , Eng Gee Lim , Yanchu Xie , Jiashi Feng

Understanding and interpreting a 3d environment is a key challenge for autonomous vehicles. Semantic segmentation of 3d point clouds combines 3d information with semantics and thereby provides a valuable contribution to this task. In many…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Fabian Duerr , Mario Pfaller , Hendrik Weigel , Juergen Beyerer

The aim of reinforcement learning (RL) is to allow the agent to achieve the final goal. Most RL studies have focused on improving the efficiency of learning to achieve the final goal faster. However, the RL model is very difficult to modify…

Artificial Intelligence · Computer Science 2022-05-03 GyeongTaek Lee

Reconstructing and understanding 3D structures from a limited number of images is a well-established problem in computer vision. Traditional methods usually break this task into multiple subtasks, each requiring complex transformations…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Zhiwen Fan , Jian Zhang , Wenyan Cong , Peihao Wang , Renjie Li , Kairun Wen , Shijie Zhou , Achuta Kadambi , Zhangyang Wang , Danfei Xu , Boris Ivanovic , Marco Pavone , Yue Wang

Recent advances at the intersection of reinforcement learning (RL) and visual intelligence have enabled agents that not only perceive complex visual scenes but also reason, generate, and act within them. This survey offers a critical and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Weijia Wu , Chen Gao , Joya Chen , Kevin Qinghong Lin , Qingwei Meng , Yiming Zhang , Yuke Qiu , Hong Zhou , Mike Zheng Shou

Mastering robotic manipulation skills through reinforcement learning (RL) typically requires the design of shaped reward functions. Recent developments in this area have demonstrated that using sparse rewards, i.e. rewarding the agent only…

Machine Learning · Computer Science 2021-11-12 Ozsel Kilinc , Giovanni Montana

The increasing prevalence of large language models (LLMs) such as GPT-4 in various applications has led to a surge in the size of prompts required for optimal performance, leading to challenges in computational efficiency. Prompt…

Computation and Language · Computer Science 2024-12-19 Shivam Shandilya , Menglin Xia , Supriyo Ghosh , Huiqiang Jiang , Jue Zhang , Qianhui Wu , Victor Rühle

With the increasing system complexity and attack sophistication, the necessity of autonomous cyber defense becomes vivid for cyber and cyber-physical systems (CPSs). Many existing frameworks in the current state-of-the-art either rely on…

Cryptography and Security · Computer Science 2021-04-20 Ashutosh Dutta , Ehab Al-Shaer , Samrat Chatterjee

Reinforcement Learning (RL) has proven highly effective in aligning Large Language Models (LLMs) with human preferences. Typical RL methods optimize under an overall sequence reward, which can lead to a suboptimal learning process. This…

Machine Learning · Computer Science 2025-02-26 Yanshi Li , Shaopan Xiong , Gengru Chen , Xiaoyang Li , Yijia Luo , Xingyuan Bu , Yingshui Tan , Wenbo Su , Bo Zheng

Chain-of-thought reasoning has significantly improved the performance of Large Language Models (LLMs) across various domains. However, this reasoning process has been confined exclusively to textual space, limiting its effectiveness in…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Haozhe Wang , Alex Su , Weiming Ren , Fangzhen Lin , Wenhu Chen

Unmanned Aerial Vehicles (UAVs) hold immense potential for critical applications, such as search and rescue operations, where accurate perception of indoor environments is paramount. However, the concurrent amalgamation of localization, 3D…

Robotics · Computer Science 2024-01-17 Thanh Nguyen Canh , Van-Truong Nguyen , Xiem HoangVan , Armagan Elibol , Nak Young Chong
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