Publications (8)
Toward Joint Prediction of a Longitudinal Marker and a Terminal Event: A bivariate discrete-time framework
Stephanie Armbruster, Daniel Kramer, Rui Duan +3
Sudden cardiac death (SCD) is a leading cause of death in the U.S. Patients at elevated risk of SCD are primarily treated with an implantable cardioverter-defibrillator (ICD), whic…
SU(2) and the cosmological model: angular power spectra
Steffen Hahn, Ralf Hofmann, Daniel Kramer
Driven by the CMB temperature-redshift (-) relation as demanded by deconfining SU(2) Yang-Mills thermodynamics, an according cosmological model is proposed and analysed. This…
Reconstructing Nonlinear Dynamical Systems from Multi-Modal Time Series
Daniel Kramer, Philine Lou Bommer, Carlo Tombolini +2
Empirically observed time series in physics, biology, or medicine, are commonly generated by some underlying dynamical system (DS) which is the target of scientific interest. There…
The Solar System Notification Alert Processing System (SNAPS): Asteroid Population Outlier Detection
Michael Gowanlock, David E. Trilling, Daniel Kramer +2
The Solar System Notification Alert Processing System (SNAPS) is a ZTF and Rubin Observatory alert broker that will send alerts to the community regarding interesting events in the…
The Solar System Notification Alert Processing System (SNAPS): Design, Architecture, and First Data Release (SNAPShot1)
David E. Trilling, Michael Gowanlock, Daniel Kramer +4
We present here the design, architecture, and first data release for the Solar System Notification Alert Processing System (SNAPS). SNAPS is a Solar System broker that ingests aler…
Fast Period Searches Using the Lomb-Scargle Algorithm on Graphics Processing Units for Large Datasets and Real-Time Applications
Michael Gowanlock, Daniel Kramer, David E. Trilling +2
Computing the periods of variable objects is well-known to be computationally expensive. Modern astronomical catalogs contain a significant number of observed objects. Therefore, e…
Removing Aliases in Time-Series Photometry
Daniel Kramer, Michael Gowanlock, David Trilling +2
Ground-based, all-sky astronomical surveys are imposed with an inevitable day-night cadence that can introduce aliases in period-finding methods. We examined four different methods…
Asteroid Period Solutions from Combined Dense and Sparse Photometry
Michael Gowanlock, David E. Trilling, Andrew McNeill +2
Deriving high quality lightcuves for asteroids and other periodic sources from survey data is challenging due to many factors, including the sparsely sampled observational record a…