A Smartphone-Based Skin Disease Classification Using MobileNet CNN. (arXiv:1911.07929v1 [cs.CV])

The MobileNet model was used by applying transfer learning on the 7 skin diseases to create a skin disease classification system on Android application. The proponents gathered a total of 3,406 images and it is considered as imbalanced dataset because of the unequal number of images on its classes. Using different sampling method and preprocessing…

Privacy Preserving Gaze Estimation using Synthetic Images via a Randomized Encoding Based Framework. (arXiv:1911.07936v1 [cs.CV])

Eye tracking is handled as one of the key technologies for applications which assess and evaluate human attention, behavior and biometrics, especially using gaze, pupillary and blink behaviors. One of the main challenges with regard to the social acceptance of eye-tracking technology is however the preserving of sensitive and personal information. To tackle this challenge,…

Inverse Graphics: Unsupervised Learning of 3D Shapes from Single Images. (arXiv:1911.07937v1 [cs.CV])

Using generative models for Inverse Graphics is an active area of research. However, most works focus on developing models for supervised and semi-supervised methods. In this paper, we study the problem of unsupervised learning of 3D geometry from single images. Our approach is to use a generative model that produces 2-D images as projections of…

A Distributed Algorithm for Polya-Gamma Data Augmentation. (arXiv:1911.07947v1 [stat.CO])

The Polya-Gamma data augmentation (PG-DA) algorithm is routinely used for Bayesian inference in logistic models. This algorithm has broad applications and outperforms other sampling algorithms in terms of numerical stability and ease of implementation. The Markov chain produced by the PG-DA algorithm is also known to be uniformly ergodic; however, the PG-DA algorithm is prohibitively…

Ultra-Efficient Conversion of Microwave into Ultrasound Wave through a Split Ring Resonator. (arXiv:1911.07887v1 [physics.app-ph])

Thermo-elastic conversion of electromagnetic wave into ultrasound wave has enabled diverse biomedical applications such as photoacoustic imaging. Microwave, which has ~10 cm long wavelength, can penetrate deeper into tissue than photons, heralding exciting applications such as deep tissue imaging via thermo-acoustic tomography. However, the thermo-acoustic conversion efficiency is very low even with an exogenous contrast…

Data-driven modeling of the chaotic thermal convection in an annular thermosyphon. (arXiv:1911.07920v1 [physics.flu-dyn])

dentifying accurate and yet interpretable low-order models from data has gained a renewed interest over the past decade. In the present work, we illustrate how the combined use of dimensionality reduction and sparse system identification techniques allows us to obtain an accurate model of the chaotic thermal convection in a two-dimensional annular thermosyphon. Taking as…

Machine learning based model order reduction of inviscid transonic flow past an airfoil. (arXiv:1911.07943v1 [physics.flu-dyn])

Fluid flow in the transonic regime finds relevance in aerospace engineering, particularly in the design of commercial air transportation vehicles. Computational fluid dynamics models of transonic flow for aerospace applications are computationally expensive to solve due to high degrees of freedom as well as the coupled nature of the conservation laws. While this poses a…

First tracking performance results from the ATLAS Fast TracKer. (arXiv:1911.07962v1 [physics.ins-det])

Particle physicists at the Large Hadron Collider investigate the properties of matter at subatomic length scales by colliding together bunches of high-energy protons and observing the decay products of the collisions. ATLAS is one of two general-purpose detectors that reconstruct the interactions and, as part of a wide range of physics goals, measure the production…

On coherence and the transverse spatial extent of a neutron wave packet. (arXiv:1911.07974v1 [physics.ins-det])

In the analysis of neutron scattering measurements of condensed matter structure, it normally suffices to treat the incident and scattered neutron beams as if composed of incoherent distributions of plane waves with wavevectors of different magnitudes and directions which are taken to define an instrumental resolution. However, despite the wide-ranging applicability of this conventional treatment,…

Improved Limits on Millicharged Particles Using the ArgoNeuT Experiment at Fermilab. (arXiv:1911.07996v1 [hep-ex])

A search for millicharged particles, a simple extension of the standard model, has been performed with the ArgoNeuT detector exposed to the Neutrinos at the Main Injector beam at Fermilab. The ArgoNeuT Liquid Argon Time Projection Chamber detector enables a search for millicharged particles through the detection of visible electron recoils. We search for an…