Results 41 to 50 of about 44,491 (259)

Mitral Annulus Segmentation and Anatomical Orientation Detection in TEE Images Using Periodic 3D CNN

open access: yesIEEE Access, 2022
Segmentation of the mitral annulus is often an important step in cardiac examinations. We propose a robust 3D method for predicting the anatomical orientation and segmentation of the mitral annulus in 3D transesophageal echocardiography. The method takes
Borge Solli Andreassen   +3 more
doaj   +1 more source

Metric Differential Privacy at the User-Level via the Earth-Mover's Distance [PDF]

open access: yesConference on Computer and Communications Security
Metric differential privacy (DP) provides heterogeneous privacy guarantees based on a distance between the pair of inputs. It is a widely popular notion of privacy since it captures the natural privacy semantics for many applications (such as, for ...
Jacob Imola   +2 more
semanticscholar   +1 more source

DOTmark – A Benchmark for Discrete Optimal Transport

open access: yesIEEE Access, 2017
The Wasserstein metric or earth mover's distance is a useful tool in statistics, computer science and engineering with many applications to biological or medical imaging, among others. Especially in the light of increasingly complex data, the computation
Jorn Schrieber   +2 more
doaj   +1 more source

Scale-adaptive Moving Target Tracking Based on Fragments Representation [PDF]

open access: yesJisuanji gongcheng, 2016
Object tracking algorithm with fixed tracking window may cause failure due to the increase of background information in tracking window for a smaller target or the decrease for a larger target.To solve this problem,a scale-adaptive target tracking ...
ZHU Yulian,ZHAO Chunyang,GONG Weijiang
doaj   +1 more source

Similarity Score for the Identification of Active Sites in Patients With Atrial Fibrillation

open access: yesFrontiers in Physiology, 2022
BackgroundAtrial fibrillation (AF) is the most common cardiac arrhythmia and precursor to other cardiac diseases. Catheter ablation is associated with limited success rates in patients with persistent AF.
Vasanth Ravikumar   +4 more
doaj   +1 more source

A Review of and Some Results for Ollivier–Ricci Network Curvature

open access: yesMathematics, 2020
Characterizing topological properties and anomalous behaviors of higher-dimensional topological spaces via notions of curvatures is by now quite common in mainstream physics and mathematics, and it is therefore natural to try to extend these notions from
Nazanin Azarhooshang   +2 more
doaj   +1 more source

Advanced information criterion for environmental data quality assurance [PDF]

open access: yesAdvances in Science and Research, 2012
A new method for testing time series of environmental data for internal inconsistencies is presented. The method divides the dataset into several disjunct blocks.
A. Düsterhus, A. Hense
doaj   +1 more source

On Geometric Alignment in Low Doubling Dimension

open access: yes, 2018
In real-world, many problems can be formulated as the alignment between two geometric patterns. Previously, a great amount of research focus on the alignment of 2D or 3D patterns, especially in the field of computer vision.
Ding, Hu, Ye, Mingquan
core   +1 more source

Deep Generative Modeling of LiDAR Data [PDF]

open access: yes, 2019
Building models capable of generating structured output is a key challenge for AI and robotics. While generative models have been explored on many types of data, little work has been done on synthesizing lidar scans, which play a key role in robot ...
Caccia, Lucas   +3 more
core   +2 more sources

Data-Dependent LSH for the Earth Mover’s Distance [PDF]

open access: yesSymposium on the Theory of Computing
We give new data-dependent locality sensitive hashing schemes (LSH) for the Earth Mover’s Distance (EMD), and as a result, improve the best approximation for nearest neighbor search under EMD by a quadratic factor.
Rajesh Jayaram   +2 more
semanticscholar   +1 more source

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