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Magnetic Resonance Fingerprinting (MRF) methods typically rely on dictionary matching to map the temporal MRF signals to quantitative tissue parameters. These methods suffer from heavy storage and computation requirements as the dictionary…

Image and Video Processing · Electrical Eng. & Systems 2019-11-25 Dongdong Chen , Mohammad Golbabaee , Pedro A. Gomez , Marion I. Menzel , Mike E. Davies

Manifold learning techniques have become increasingly valuable as data continues to grow in size. By discovering a lower-dimensional representation (embedding) of the structure of a dataset, manifold learning algorithms can substantially…

Neural and Evolutionary Computing · Computer Science 2020-01-31 Andrew Lensen , Mengjie Zhang , Bing Xue

Neural networks that map 3D coordinates to signed distance function (SDF) or occupancy values have enabled high-fidelity implicit representations of object shape. This paper develops a new shape model that allows synthesizing novel distance…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Ehsan Zobeidi , Nikolay Atanasov

Although RF fingerprinting is one of the most commonly used techniques for localization, deploying it in a ubiquitous manner requires addressing the challenge of supporting a large number of heterogeneous devices and their variations. We…

Quantum Physics · Physics 2022-07-05 Ahmed Shokry , Moustafa Youssef

Holographic Reduced Representations (HRR) are a method for performing symbolic AI on top of real-valued vectors by associating each vector with an abstract concept, and providing mathematical operations to manipulate vectors as if they were…

Artificial Intelligence · Computer Science 2021-12-30 Ashwinkumar Ganesan , Hang Gao , Sunil Gandhi , Edward Raff , Tim Oates , James Holt , Mark McLean

Constructing a high-quality dense map in real-time is essential for robotics, AR/VR, and digital twins applications. As Neural Radiance Field (NeRF) greatly improves the mapping performance, in this paper, we propose a NeRF-based mapping…

Robotics · Computer Science 2023-09-21 Chenxing Jiang , Hanwen Zhang , Peize Liu , Zehuan Yu , Hui Cheng , Boyu Zhou , Shaojie Shen

Datasets such as images, text, or movies are embedded in high-dimensional spaces. However, in important cases such as images of objects, the statistical structure in the data constrains samples to a manifold of dramatically lower…

Machine Learning · Computer Science 2019-10-29 Stefano Recanatesi , Matthew Farrell , Madhu Advani , Timothy Moore , Guillaume Lajoie , Eric Shea-Brown

Convolutional Neural Networks (CNN) have been successful in processing data signals that are uniformly sampled in the spatial domain (e.g., images). However, most data signals do not natively exist on a grid, and in the process of being…

Computer Vision and Pattern Recognition · Computer Science 2019-01-09 Chiyu "Max" Jiang , Dequan Wang , Jingwei Huang , Philip Marcus , Matthias Nießner

Building on recent advances in representation learning for wireless channels, this work investigates the cost-benefit trade-offs of high-dimensional channel embeddings in practical systems. We benchmark multiple wireless representations:…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Murilo Batista , Shirin Salehi , Saeed Mashdour , Paul Zheng , Rodrigo C. de Lamare , Anke Schmeink

The reconstruction of indoor scenes from multi-view RGB images is challenging due to the coexistence of flat and texture-less regions alongside delicate and fine-grained regions. Recent methods leverage neural radiance fields aided by…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Sheng Ye , Yubin Hu , Matthieu Lin , Yu-Hui Wen , Wang Zhao , Yong-Jin Liu , Wenping Wang

Parametric 3D models have enabled a wide variety of tasks in computer graphics and vision, such as modeling human bodies, faces, and hands. However, the construction of these parametric models is often tedious, as it requires heavy manual…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Pablo Palafox , Aljaž Božič , Justus Thies , Matthias Nießner , Angela Dai

The semantics are derived from textual data that provide representations for Machine Learning algorithms. These representations are interpretable form of high dimensional sparse matrix that are given as an input to the machine learning…

Machine Learning · Computer Science 2022-02-08 Sayali Tambe , Raunak Joshi , Abhishek Gupta , Nandan Kanvinde , Vidya Chitre

This paper provides an initial investigation on the application of convolutional neural networks (CNNs) for fingerprint-based positioning using measured massive MIMO channels. When represented in appropriate domains, massive MIMO channels…

Machine Learning · Statistics 2017-08-22 Joao Vieira , Erik Leitinger , Muris Sarajlic , Xuhong Li , Fredrik Tufvesson

Extracting digital material representations from images is a necessary prerequisite for a quantitative analysis of material properties. Different segmentation approaches have been extensively studied in the past to achieve this task, but…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Julian Grolig , Lars Griem , Michael Selzer , Hans-Ulrich Kauczor , Simon M. F. Triphan , Britta Nestler , Arnd Koeppe

In this chapter we take a look at the universal approximation question for stochastic feedforward neural networks. In contrast to deterministic networks, which represent mappings from a set of inputs to a set of outputs, stochastic networks…

Machine Learning · Computer Science 2019-10-23 Thomas Merkh , Guido Montúfar

Implicit neural field generating signed distance field representations (SDFs) of 3D shapes have shown remarkable progress in 3D shape reconstruction and generation. We introduce a new paradigm for neural field representations of 3D scenes;…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Angela Dai , Matthias Nießner

Performance of fingerprint recognition algorithms substantially rely on fine features extracted from fingerprints. Apart from minutiae and ridge patterns, pore features have proven to be usable for fingerprint recognition. Although features…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Syeda Nyma Ferdous , Ali Dabouei , Jeremy Dawson , Nasser M Nasrabadi

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

RF data-driven device fingerprinting through the use of deep learning has recently surfaced as a possible method for enabling secure device identification and authentication. Traditional approaches are commonly susceptible to the domain…

Cryptography and Security · Computer Science 2024-02-16 Benjamin Johnson , Bechir Hamdaoui

Our work introduces an innovative approach to graph learning by leveraging Hyperdimensional Computing. Graphs serve as a widely embraced method for conveying information, and their utilization in learning has gained significant attention.…

Machine Learning · Computer Science 2024-03-20 Pere Verges , Igor Nunes , Mike Heddes , Tony Givargis , Alexandru Nicolau