SAFRING Ringing Report for 2017

Listening for Ringing Black Holes

The gravitational radiation produced by binary black holes during their inspiral, merger, and ringdown phases is a promising candidate for detection by the first or second generation of kilometer-scale interferometric gravitational wave antennas. Waveforms for the last phase, the quasinormal ringing, are well understood. I discuss the feasibility of detection of the quasinormal ringing of a bla...

ERI Summer 2017 Fellowship Report

Introduction Ocean island basalts (OIB) are thought to sample the Earth’s deep mantle, whereby thermochemical plumes entrain lower mantle material and bring it to the surface where it erupts. By measuring the isotopic compositions of global OIB—which record the isotopic compositions of OIB mantle sources—geochemists can “map” the isotopic heterogeneity of the Earth’s deep mantle (e.g., Gast et ...

Activity-Net 2017 Challenge Report

In this year’s competition, we use Temporal Context Network (TCN) for precise temporal localization of human activities. To improve performance for the metric used for evaluating proposals (i.e. area under the Average Recall vs. Average Number of Proposals per Video (AR-AN) curve with 100 proposals), we study the influence of two major hyper-parameters: the IOU threshold for NMS and the number ...

Ringing the changes

Information System for Bird Ringing: ”Tipu”