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Large-scale applications of Visual Place Recognition (VPR) require computationally efficient approaches. Further, a well-balanced combination of data-based and training-free approaches can decrease the required amount of training data and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Fangming Yuan , Stefan Schubert , Peter Protzel , Peer Neubert

Visual Place Recognition (VPR) is aimed at predicting the location of a query image by referencing a database of geotagged images. For VPR task, often fewer discriminative local regions in an image produce important effects while mundane…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Changwei Wang , Shunpeng Chen , Yukun Song , Rongtao Xu , Zherui Zhang , Jiguang Zhang , Haoran Yang , Yu Zhang , Kexue Fu , Shide Du , Zhiwei Xu , Longxiang Gao , Li Guo , Shibiao Xu

Calculation of near-neighbor interactions among high dimensional, irregularly distributed data points is a fundamental task to many graph-based or kernel-based machine learning algorithms and applications. Such calculations, involving…

Image-based sequencing of mRNA makes it possible to see where in a tissue sample a given gene is active, and thus discern large numbers of different cell types in parallel. This is crucial for gaining a better understanding of tissue…

Quantitative Methods · Quantitative Biology 2018-02-27 Gabriele Partel , Giorgia Milli , Carolina Wählby

Deeply-learned planning methods are often based on learning representations that are optimized for unrelated tasks. For example, they might be trained on reconstructing the environment. These representations are then combined with predictor…

Machine Learning · Computer Science 2021-03-18 Hlynur Davíð Hlynsson , Merlin Schüler , Robin Schiewer , Tobias Glasmachers , Laurenz Wiskott

In the era of the proliferation of Geo-Spatial Data, induced by the diffusion of GPS devices, the map matching problem still represents an important and valuable challenge. The process of associating a segment of the underlying road network…

Data Structures and Algorithms · Computer Science 2016-03-25 Paolo Cintia , Mirco Nanni

Fine-grained image recognition has been a hot research topic in computer vision due to its various applications. The-state-of-the-art is the part/region-based approaches that first localize discriminative parts/regions, and then learn their…

Computer Vision and Pattern Recognition · Computer Science 2019-08-07 Peng Zhang , Xinyu Zhu , Zhanzhan Cheng , Shuigeng Zhou , Yi Niu

The overarching goals in image-based localization are scale, robustness and speed. In recent years, approaches based on local features and sparse 3D point-cloud models have both dominated the benchmarks and seen successful realworld…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Simon Lynen , Bernhard Zeisl , Dror Aiger , Michael Bosse , Joel Hesch , Marc Pollefeys , Roland Siegwart , Torsten Sattler

Although prevailing supervised and self-supervised learning augmented sequential recommendation (SeRec) models have achieved improved performance with powerful neural network architectures, we argue that they still suffer from two…

Information Retrieval · Computer Science 2025-02-14 Xinping Zhao , Baotian Hu , Yan Zhong , Shouzheng Huang , Zihao Zheng , Meng Wang , Haofen Wang , Min Zhang

We propose Sparse Sinkhorn Attention, a new efficient and sparse method for learning to attend. Our method is based on differentiable sorting of internal representations. Concretely, we introduce a meta sorting network that learns to…

Machine Learning · Computer Science 2020-02-27 Yi Tay , Dara Bahri , Liu Yang , Donald Metzler , Da-Cheng Juan

Localization in a pre-built map is a basic technique for robot autonomous navigation. Existing mapping and localization methods commonly work well in small-scale environments. As a map grows larger, however, more memory is required and…

Robotics · Computer Science 2023-03-21 Xiaoyu Zhang , Yun-Hui Liu

A considerable amount of mobility data has been accumulated due to the proliferation of location-based service. Nevertheless, compared with mobility data from transportation systems like the GPS module in taxis, this kind of data is…

Machine Learning · Computer Science 2021-01-05 Tong Xia , Yunhan Qi , Jie Feng , Fengli Xu , Funing Sun , Diansheng Guo , Yong Li

In the Global Navigation Satellite System (GNSS) context, the growing number of available satellites has lead to many challenges when it comes to choosing the most accurate pseudorange contributions, given the strong impact of biased…

Signal Processing · Electrical Eng. & Systems 2023-06-09 Ibrahim Sbeity , Christophe Villien , Benoît Denis , E. Veronica Belmega

Personalized search plays a crucial role in improving user search experience owing to its ability to build user profiles based on historical behaviors. Previous studies have made great progress in extracting personal signals from the query…

Information Retrieval · Computer Science 2021-11-25 Yujia Zhou , Zhicheng Dou , Yutao Zhu , Ji-Rong Wen

Online stores and service providers rely heavily on recommendation softwares to guide users through the vast amount of available products. Consequently, the field of recommender systems has attracted increased attention from the industry…

Information Retrieval · Computer Science 2022-10-17 Abdullah Alhadlaq , Said Kerrache , Hatim Aboalsamh

Loop closures are essential for correcting odometry drift and creating consistent maps, especially in the context of large-scale navigation. Current methods using dense point clouds for accurate place recognition do not scale well due to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Débora N. P. Oliveira , Joshua Knights , Sebastián Barbas Laina , Simon Boche , Wolfram Burgard , Stefan Leutenegger

Helpfulness prediction techniques have been widely used to identify and recommend high-quality online reviews to customers. Currently, the vast majority of studies assume that a review's helpfulness is self-contained. In practice, however,…

Computation and Language · Computer Science 2020-06-18 Jiahua Du , Jia Rong , Hua Wang , Yanchun Zhang

We present a general learning-based solution for restoring images suffering from spatially-varying degradations. Prior approaches are typically degradation-specific and employ the same processing across different images and different pixels…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Kuldeep Purohit , Maitreya Suin , A. N. Rajagopalan , Vishnu Naresh Boddeti

The goal of compressive sensing is efficient reconstruction of data from few measurements, sometimes leading to a categorical decision. If only classification is required, reconstruction can be circumvented and the measurements needed are…

Computer Vision and Pattern Recognition · Computer Science 2013-10-17 B. W. Brunton , S. L. Brunton , J. L. Proctor , J. N. Kutz

Recent work in Deep Learning has re-imagined the representation of data as functions mapping from a coordinate space to an underlying continuous signal. When such functions are approximated by neural networks this introduces a compelling…

Machine Learning · Statistics 2022-08-09 Jonathan Richard Schwarz , Yee Whye Teh