نتایج جستجو برای: overlap ratio

تعداد نتایج: 545042  

Journal: :Internal Medicine 1997

2007
Vicente García José Salvador Sánchez Ramón Alberto Mollineda

Class imbalance has been reported as an important obstacle to apply traditional learning algorithms to real-world domains. Recent investigations have questioned whether the imbalance is the unique factor that hinders the performance of classifiers. In this paper, we study the behavior of six algorithms when classifying imbalanced, overlapped data sets under uncommon situations (e.g., when the o...

Journal: :Alzheimer's & dementia : the journal of the Alzheimer's Association 2017
Antoine Leuzy Elena Rodriguez-Vieitez Laure Saint-Aubert Konstantinos Chiotis Ove Almkvist Irina Savitcheva My Jonasson Mark Lubberink Anders Wall Gunnar Antoni Agneta Nordberg

INTRODUCTION Cross-sectional findings using the tau tracer [18F]THK5317 (THK5317) have shown that [18F]fluorodeoxyglucose (FDG) positron emission tomography (PET) data can be approximated using perfusion measures (early-frame standardized uptake value ratio; ratio of tracer delivery in target to reference regions). In this way, a single PET study can provide both functional and molecular inform...

2013
Jianhua He Zuoyin Tang Wenyang Guan Yue Li

The low-energy consumption of IEEE 802.15.4 networks makes it a strong candidate for machine-to-machine (M2M) communications. As multiple M2M applications with 802.15.4 networks may be deployed closely and independently in residential or enterprise areas, supporting reliable and timely M2M communications can be a big challenge especially when potential hidden terminals appear. In this paper, we...

2006
Xin Li Guozhan Meng Chuan Liu

We formulate the massive overlap fermions on anisotropic lattices. We find that the dispersion relation for the overlap fermion resembles the continuum form in the low-momentum region once the bare parameters are properly tuned. The quark selfenergy and the quark field renormalization constants are calculated to one-loop in bare lattice perturbation theory. We argue that massive domain wall qua...

Journal: :Computat. and Visualiz. in Science 2012
Gary B. Hughes Mohcine Chraibi

We present an approach for finding the overlap area between two ellipses that does not rely on proxy curves. The Gauss-Green formula is used to determine a segment area between two points on an ellipse. Overlap between two ellipses is calculated by combining the areas of appropriate segments and polygons in each ellipse. For four of the ten possible orientations of two ellipses, the method requ...

Journal: :Physical review letters 2014
Cyril Branciard

We study the extent to which ψ-epistemic models for quantum measurement statistics-models where the quantum state does not have a real, ontic status-can explain the indistinguishability of nonorthogonal quantum states. This is done by comparing the overlap of any two quantum states with the overlap of the corresponding classical probability distributions over ontic states in a ψ-epistemic model...

2010
M. Mizotin A. Chernyavskiy

This paper addresses the problem of aerial image matching. We analyze existing approaches to this problem and show that, though the modern algorithms cope with the task quite well, their results are deteriorated in case of low overlap and significant rotation angle between the images. A two-stage feature-based image matching scheme is presented. It is shown that preliminary stage of simplified ...

2016
Snehal Gholap R. S. Shelke

An adhesive is a material used for holding two surfaces together. An adhesive must wet the surfaces, hold fast to the surfaces, develop strength after it has been applied, and remain Stable. In this work we work on aerospace application, for that application we used material as SS304 and used Adhesive as EA-E30HV.We used specimen size as 130*30*1.95mm. We used different overlap length and overl...

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