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Visual Place Recognition (VPR) in long-term deployment requires reasoning beyond pixel similarity: systems must make transparent, interpretable decisions that remain robust under lighting, weather and seasonal change. We present Text2Graph…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Saeideh Yousefzadeh , Hamidreza Pourreza

Scene coordinates regression (SCR), i.e., predicting 3D coordinates for every pixel of a given image, has recently shown promising potential. However, existing methods remain limited to small scenes memorized during training, and thus…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Jerome Revaud , Yohann Cabon , Romain Brégier , JongMin Lee , Philippe Weinzaepfel

One major bottleneck in the practical implementation of received signal strength (RSS) based indoor localization systems is the extensive deployment efforts required to construct the radio maps through fingerprinting. In this paper, we aim…

Networking and Internet Architecture · Computer Science 2013-10-15 Sameh Sorour , Yves Lostanlen , Shahrokh Valaee

Machine Reading at Scale (MRS) is a challenging task in which a system is given an input query and is asked to produce a precise output by "reading" information from a large knowledge base. The task has gained popularity with its natural…

Computation and Language · Computer Science 2019-09-19 Yixin Nie , Songhe Wang , Mohit Bansal

We propose a weakly supervised approach for creating maps using free-form textual descriptions. We refer to this work of creating textual maps as zero-shot mapping. Prior works have approached mapping tasks by developing models that predict…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Aayush Dhakal , Adeel Ahmad , Subash Khanal , Srikumar Sastry , Hannah Kerner , Nathan Jacobs

Soft compression is a lossless image compression method, which is committed to eliminating coding redundancy and spatial redundancy at the same time by adopting locations and shapes of codebook to encode an image from the perspective of…

Information Theory · Computer Science 2020-12-14 Gangtao Xin , Pingyi Fan

We extend our work for compression of currents and varifolds to a compression algorithm for the embedded normal cycles representation of shape, restricted to the constant normal kernel case, using the Nystrom approximation in Reproducing…

Numerical Analysis · Mathematics 2026-05-26 Allen Paul , Neill Campbell , Tony Shardlow

We present a novel mapping framework for robot navigation which features a multi-level querying system capable to obtain rapidly representations as diverse as a 3D voxel grid, a 2.5D height map and a 2D occupancy grid. These are inherently…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Daniele De Gregorio , Luigi Di Stefano

Ground texture based localization methods are potential prospects for low-cost, high-accuracy self-localization solutions for robots. These methods estimate the pose of a given query image, i.e. the current observation of the ground from a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-06 Raaghav Radhakrishnan , Jan Fabian Schmid , Randolf Scholz , Lars Schmidt-Thieme

Handwritten Text Recognition (HTR) is a task of central importance in the field of document image understanding. State-of-the-art methods for HTR require the use of extensive annotated sets for training, making them impractical for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Petros Georgoulas Wraight , Giorgos Sfikas , Ioannis Kordonis , Petros Maragos , George Retsinas

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…

Robotics · Computer Science 2021-02-18 Han Wang , Chen Wang , Lihua Xie

Localization is an essential task for mobile autonomous robotic systems that want to use pre-existing maps or create new ones in the context of SLAM. Today, many robotic platforms are equipped with high-accuracy 3D LiDAR sensors, which…

Low-rank matrix approximation (LRMA) is a powerful technique for signal processing and pattern analysis. However, its potential for data compression has not yet been fully investigated in the literature. In this paper, we propose sparse…

Multimedia · Computer Science 2016-02-22 Junhui Hou , Lap-Pui Chau , Nadia Magnenat-Thalmann , Ying He

Long-Term visual localization under changing environments is a challenging problem in autonomous driving and mobile robotics due to season, illumination variance, etc. Image retrieval for localization is an efficient and effective solution…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Hanjiang Hu , Zhijian Qiao , Ming Cheng , Zhe Liu , Hesheng Wang

In commercial autonomous service robots with several form factors, simultaneous localization and mapping (SLAM) is an essential technology for providing proper services such as cleaning and guidance. Such robots require SLAM algorithms…

Robotics · Computer Science 2024-07-01 DongKi Noh , Hyungtae Lim , Gyuho Eoh , Duckyu Choi , Jeongsik Choi , Hyunjun Lim , SeungMin Baek , Hyun Myung

Images incorporate a wealth of information from a robot's surroundings. With the widespread availability of compact cameras, visual information has become increasingly popular for addressing the localisation problem, which is then termed as…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Mihnea-Alexandru Tomita , Bruno Ferrarini , Michael Milford , Klaus McDonald-Maier , Shoaib Ehsan

This paper addresses the problem of optimizing communicated information among heterogeneous, resource-aware robot teams to facilitate their navigation. In such operations, a mobile robot compresses its local map to assist another robot in…

Robotics · Computer Science 2025-03-17 Evangelos Psomiadis , Ali Reza Pedram , Dipankar Maity , Panagiotis Tsiotras

Recent progress in scaling large models has motivated recommender systems to increase model depth and capacity to better leverage massive behavioral data. However, recommendation inputs are high-dimensional and extremely sparse, and simply…

Information Retrieval · Computer Science 2026-04-23 Yantao Yu , Sen Qiao , Lei Shen , Bing Wang , Xiaoyi Zeng

Deep neural networks represent a powerful class of function approximators that can learn to compress and reconstruct images. Existing image compression algorithms based on neural networks learn quantized representations with a constant…

Computer Vision and Pattern Recognition · Computer Science 2018-02-09 David Minnen , George Toderici , Michele Covell , Troy Chinen , Nick Johnston , Joel Shor , Sung Jin Hwang , Damien Vincent , Saurabh Singh

Although transformer-based models have been dominating the field of deep learning, various studies of their embedding space have shown that they suffer from "representation degeneration problem": embeddings tend to be distributed in a…

Machine Learning · Computer Science 2025-01-13 Sergei Kudriashov , Olesya Karpik , Eduard Klyshinsky