We apply independent component analysis (ICA) to real data from a gravitational wave detector for the first time. Specifically, we use the iKAGRA data taken in April 2016, and calculate the correlations between the gravitational wave strain channel and 35 physical environmental channels.
Gravitational waves provide a unique tool for observational astronomy. While the first LIGO？Virgo catalogue of gravitationalwave transients (GWTC-1) contains 11 signals from black hole and neutron star binaries, the number of observations is increasing rapidly as detector sensitivity improves. To extract information from the observed signals, it is imperative to have fast, flexible, and scalable inference techniques.
Certificateless cryptography solves the certificate management problem in public-key cryptography and the key-escrow problem in identity-based cryptography.
Certificateless cryptography does not require any certificate for the public key authentication and users’ public keys are transmitted with ciphertext/signatures or by making them available in the IoT based public directory in a proper way. Due to these features, certificateless cryptosystems are considered as fundamental cryptographic buildingblocks to provide authenticity, integrity and non-repudiation suitable for IoT applications.
Molecular dynamics (MD) simulations are useful in understanding the interaction between solid materials and molecules. However, performing MD simulations is possible only when interatomic potentials are available and constructing such interatomic potentials usually requires additional computational work. Recently, generating interatomic potentials was shown to be much easier when machine learning (ML) algorithms were used. In addition, ML algorithms require new deors for improved performance. Here, we present an ML approach with several categories of atomic deors to predict the parameters necessary for MD simulations, such as the potential energies and the atomic forces.
We present the results from a search for gravitational-wave transients associated with core-collapse supernovae observed within a source distance of approximately 20 Mpc during the first and second observing runs of Advanced LIGO and Advanced Virgo.
We present our current best estimate of the plausible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years, with the intention of providing information to facilitate planning for multi-messenger astronomy with gravitational waves.
We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO’s and Virgo’s third observing run.
We report the observation of a compact binary coalescence involving a 22.2？24.3 M ⊙ black hole and a compact object with a mass of 2.50？2.67 M ⊙ (all measurements quoted at the 90% credible level).
We present a search for continuous gravitational waves from five radio pulsars, comprising three recycled pulsars (PSR J0437？4715, PSR J0711？6830, and PSR J0737？3039A) and two young pulsars: the Crab pulsar (J0534+2200) and the Vela pulsar (J0835？4510).