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Data quality or data evaluation is sometimes a task as important as collecting a large volume of data when it comes to generating accurate artificial intelligence models. In fact, being able to evaluate the data can lead to a larger…

机器学习 · 计算机科学 2023-05-24 Eloy Anguiano Batanero , Ángela Fernández Pascual , Álvaro Barbero Jiménez

Integrated sensing and communication enables simultaneous communication and sensing tasks, including precise radio positioning and mapping, essential for future 6G networks. Current methods typically model environmental landmarks as…

信号处理 · 电气工程与系统科学 2025-05-13 Yu Ge , Musa Furkan Keskin , Hui Chen , Ossi Kaltiokallio , Mengting Li , Mikko Valkama , Christos Masouros , Henk Wymeersch

A practical challenge which arises in the operation of sensor networks is the presence of sensor faults, biases, or adversarial attacks, which can lead to significant errors incurring in the localization of the agents, thereby undermining…

系统与控制 · 电气工程与系统科学 2023-07-25 Shiraz Khan , Inseok Hwang

Accurate localization is an essential technology for the flexible navigation of robots in large-scale environments. Both SLAM-based and map-based localization will increase the computing load due to the increase in map size, which will…

机器人学 · 计算机科学 2024-04-30 Yixiao Feng , Zhou Jiang , Yongliang Shi , Yunlong Feng , Xiangyu Chen , Hao Zhao , Guyue Zhou

There is a clear need for efficient algorithms to tune hyperparameters for statistical learning schemes, since the commonly applied search methods (such as grid search with N-fold cross-validation) are inefficient and/or approximate.…

机器学习 · 计算机科学 2020-04-07 Luis Miguel Lopez-Ramos , Baltasar Beferull-Lozano

This paper deals with the problem of localization in a cellular network in a dense urban scenario. Global Navigation Satellite Systems (GNSS) typically perform poorly in urban environments, where the likelihood of line-of-sight conditions…

机器学习 · 计算机科学 2022-02-04 Çağkan Yapar , Ron Levie , Gitta Kutyniok , Giuseppe Caire

In local-life service platforms, the query suggestion module plays a crucial role in enhancing user experience by generating candidate queries based on user input prefixes, thus reducing user effort and accelerating search. Traditional…

计算与语言 · 计算机科学 2026-03-06 Jinwen Chen , Shuai Gong , Shiwen Zhang , Zheng Zhang , Yachao Zhao , Lingxiang Wang , Haibo Zhou , Yuan Zhan , Wei Lin , Hainan Zhang

Despite tremendous progress achieved in temporal action detection, state-of-the-art methods still suffer from the sharp performance deterioration when localizing the starting and ending temporal action boundaries. Although most methods…

计算机视觉与模式识别 · 计算机科学 2019-12-17 Weijie Kong , Nannan Li , Shan Liu , Thomas Li , Ge Li

In this work, we present a camera geopositioning system based on matching a query image against a database with panoramic images. For matching, our system uses memory vectors aggregated from global image descriptors based on convolutional…

计算机视觉与模式识别 · 计算机科学 2019-03-14 Raffaele Imbriaco , Clint Sebastian , Egor Bondarev , Peter de With

This paper tackles the problem of large-scale image-based localization (IBL) where the spatial location of a query image is determined by finding out the most similar reference images in a large database. For solving this problem, a…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Liu Liu , Hongdong Li , Yuchao Dai

For scalable autonomous driving, a robust map-based localization system, independent of GPS, is fundamental. To achieve such map-based localization, online high-definition (HD) map construction plays a significant role in accurate…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Juyeb Shin , Hyeonjun Jeong , Francois Rameau , Dongsuk Kum

In this paper, we address the problem of global-scale image geolocation, proposing a mixed classification-retrieval scheme. Unlike other methods that strictly tackle the problem as a classification or retrieval task, we combine the two…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Giorgos Kordopatis-Zilos , Panagiotis Galopoulos , Symeon Papadopoulos , Ioannis Kompatsiaris

Localization of networked nodes is an essential problem in emerging applications, including first-responder navigation, automated manufacturing lines, vehicular and drone navigation, asset navigation and tracking, Internet of Things and 5G…

网络与互联网体系结构 · 计算机科学 2023-10-04 Nakul Garg , Irtaza Shahid , Ramanujan K Sheshadri , Karthikeyan Sundaresan , Nirupam Roy

In this work, we introduce LEAD, an approach to discover landmarks from an unannotated collection of category-specific images. Existing works in self-supervised landmark detection are based on learning dense (pixel-level) feature…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Tejan Karmali , Abhinav Atrishi , Sai Sree Harsha , Susmit Agrawal , Varun Jampani , R. Venkatesh Babu

In recent years, there has been a sharp increase in Global Navigation Satellite Systems (GNSS) interference, which has proven to be problematic in GNSS-dependent civilian applications. Many currently deployed GNSS receivers lack the proper…

信号处理 · 电气工程与系统科学 2025-08-12 Jacob S. Clements , Zachary L. Clements

Estimating building footprint maps from geospatial data is of paramount importance in urban planning, development, disaster management, and various other applications. Deep learning methodologies have gained prominence in building…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Anuja Vats , David Völgyes , Martijn Vermeer , Marius Pedersen , Kiran Raja , Daniele S. M. Fantin , Jacob Alexander Hay

Estimating vehicles' locations is one of the key components in intelligent traffic management systems (ITMSs) for increasing traffic scene awareness. Traditionally, stationary sensors have been employed in this regard. The development of…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Elnaz Namazi , Rudolf Mester , Chaoru Lu , Jingyue Li

Street-level geolocalization from images is crucial for a wide range of essential applications and services, such as navigation, location-based recommendations, and urban planning. With the growing popularity of social media data and…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Yunus Serhat Bicakci , Joseph Shingleton , Anahid Basiri

The problem of class imbalance along with class-overlapping has become a major issue in the domain of supervised learning. Most supervised learning algorithms assume equal cardinality of the classes under consideration while optimizing the…

Simultaneous Localization And Mapping (SLAM) is a task to estimate the robot location and to reconstruct the environment based on observation from sensors such as LIght Detection And Ranging (LiDAR) and camera. It is widely used in robotic…

机器人学 · 计算机科学 2021-02-18 Han Wang , Chen Wang , Lihua Xie