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This work addresses the unsupervised adaptation of an existing object detector to a new target domain. We assume that a large number of unlabeled videos from this domain are readily available. We automatically obtain labels on the target…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Aruni RoyChowdhury , Prithvijit Chakrabarty , Ashish Singh , SouYoung Jin , Huaizu Jiang , Liangliang Cao , Erik Learned-Miller

In this paper, we describe a strategy for training neural networks for object detection in range images obtained from one type of LiDAR sensor using labeled data from a different type of LiDAR sensor. Additionally, an efficient model for…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Manuel Herzog , Klaus Dietmayer

The great majority of languages in the world are considered under-resourced for the successful application of deep learning methods. In this work, we propose a meta-learning approach to document classification in limited-resource setting…

Computation and Language · Computer Science 2021-04-27 Niels van der Heijden , Helen Yannakoudakis , Pushkar Mishra , Ekaterina Shutova

Learning from small data sets is critical in many practical applications where data collection is time consuming or expensive, e.g., robotics, animal experiments or drug design. Meta learning is one way to increase the data efficiency of…

Machine Learning · Statistics 2018-07-10 Steindór Sæmundsson , Katja Hofmann , Marc Peter Deisenroth

Meta-reinforcement learning (RL) methods can meta-train policies that adapt to new tasks with orders of magnitude less data than standard RL, but meta-training itself is costly and time-consuming. If we can meta-train on offline data, then…

Machine Learning · Computer Science 2022-07-08 Vitchyr H. Pong , Ashvin Nair , Laura Smith , Catherine Huang , Sergey Levine

Cognitive radars are systems that rely on learning through interactions of the radar with the surrounding environment. To realize this, radar transmit parameters can be adapted such that they facilitate some downstream task. This paper…

Signal Processing · Electrical Eng. & Systems 2021-12-15 Tristan S. W. Stevens , R. Firat Tigrek , Eric S. Tammam , Ruud J. G. van Sloun

Effective tracking of surrounding traffic participants allows for an accurate state estimation as a necessary ingredient for prediction of future behavior and therefore adequate planning of the ego vehicle trajectory. One approach for…

Robotics · Computer Science 2024-06-04 Patrick Palmer , Martin Krüger , Richard Altendorfer , Torsten Bertram

When dealing with data from distinct locations, machine learning algorithms tend to demonstrate an implicit preference of some locations over the others, which constitutes biases that sabotage the spatial fairness of the algorithm. This…

Machine Learning · Computer Science 2024-02-22 Weiye Chen , Yiqun Xie , Xiaowei Jia , Erhu He , Han Bao , Bang An , Xun Zhou

Radar and camera fusion yields robustness in perception tasks by leveraging the strength of both sensors. The typical extracted radar point cloud is 2D without height information due to insufficient antennas along the elevation axis, which…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Huawei Sun , Hao Feng , Gianfranco Mauro , Julius Ott , Georg Stettinger , Lorenzo Servadei , Robert Wille

Recent advancements in keypoint detection and descriptor extraction have shown impressive performance in local feature learning tasks. However, existing methods generally exhibit suboptimal performance under extreme conditions such as…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Jingtai He , Gehao Zhang , Tingting Liu , Songlin Du

In this paper, we investigate the problem of fast spectrum sharing in vehicle-to-everything communication. In order to improve the spectrum efficiency of the whole system, the spectrum of vehicle-to-infrastructure links is reused by…

Information Theory · Computer Science 2023-10-02 Kai Huang , Le Liang , Shi Jin , Geoffrey Ye Li

Meta-reinforcement learning algorithms provide a data-driven way to acquire policies that quickly adapt to many tasks with varying rewards or dynamics functions. However, learned meta-policies are often effective only on the exact task…

Machine Learning · Computer Science 2023-07-13 Anurag Ajay , Abhishek Gupta , Dibya Ghosh , Sergey Levine , Pulkit Agrawal

Deep reinforcement learning (RL) has been successfully applied to a variety of game-like environments. However, the application of deep RL to visual navigation with realistic environments is a challenging task. We propose a novel learning…

Robotics · Computer Science 2019-11-12 Jonáš Kulhánek , Erik Derner , Tim de Bruin , Robert Babuška

This paper presents a parametric variational autoencoder-based human target detection and localization framework working directly with the raw analog-to-digital converter data from the frequency modulated continous wave radar. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Michael Stephan , Thomas Stadelmayer , Avik Santra , Georg Fischer , Robert Weigel , Fabian Lurz

Industrial robots are widely used in various manufacturing environments due to their efficiency in doing repetitive tasks such as assembly or welding. A common problem for these applications is to reach a destination without colliding with…

Robotics · Computer Science 2023-01-18 Teham Bhuiyan , Linh Kästner , Yifan Hu , Benno Kutschank , Jens Lambrecht

Deploying deep learning on Synthetic Aperture Radar (SAR) data is becoming more common for mapping purposes. One such case is sea ice, which is highly dynamic and rapidly changes as a result of the combined effect of wind, temperature, and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Morteza Karimzadeh , Rafael Pires de Lima

Few-shot object detection, the problem of modelling novel object detection categories with few training instances, is an emerging topic in the area of few-shot learning and object detection. Contemporary techniques can be divided into two…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Berkan Demirel , Orhun Buğra Baran , Ramazan Gokberk Cinbis

The advances in deep learning have enabled machine learning methods to outperform human beings in various areas, but it remains a great challenge for a well-trained model to quickly adapt to a new task. One promising solution to realize…

Machine Learning · Computer Science 2023-04-11 Shengyu Feng , Hanghang Tong

Robots hold promise in many scenarios involving outdoor use, such as search-and-rescue, wildlife management, and collecting data to improve environment, climate, and weather forecasting. However, autonomous navigation of outdoor trails…

Machine Learning · Computer Science 2019-01-27 Michael L. Iuzzolino , Michael E. Walker , Daniel Szafir

There are various automotive applications that rely on correctly interpreting point cloud data recorded with radar sensors. We present a deep learning approach for histogram-based processing of such point clouds. Compared to existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Maxim Tatarchenko , Kilian Rambach