Search Results for author: Christian R. Shelton

Found 8 papers, 3 papers with code

Variational Inference for Neyman-Scott Processes

1 code implementation7 Mar 2023 Chengkuan Hong, Christian R. Shelton

Neyman-Scott processes (NSPs) have been applied across a range of fields to model points or temporal events with a hierarchy of clusters.

Point Processes Variational Inference

Deep Neyman-Scott Processes

1 code implementation6 Nov 2021 Chengkuan Hong, Christian R. Shelton

We consider a deep Neyman-Scott process in this paper, for which the building components of a network are all Poisson processes.

Point Processes

Convolutional Deep Exponential Families

no code implementations27 Oct 2021 Chengkuan Hong, Christian R. Shelton

We describe convolutional deep exponential families (CDEFs) in this paper.

Automated Measurement of Quasar Redshift with a Gaussian Process

2 code implementations12 Jun 2020 Leah Fauber, Ming-Feng Ho, Simeon Bird, Christian R. Shelton, Roman Garnett, Ishita Korde

Our technique is an extension of an earlier Gaussian process method for detecting damped Lyman-alpha absorbers (DLAs) in quasar spectra with known redshifts.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

Intrusion Detection using Continuous Time Bayesian Networks

no code implementations16 Jan 2014 Jing Xu, Christian R. Shelton

For HIDS, we develop a novel learning method to deal with the finite resolution of system log file time stamps, without losing the benefits of our continuous time model.

Anomaly Detection Intrusion Detection

Expectation Maximization and Complex Duration Distributions for Continuous Time Bayesian Networks

no code implementations4 Jul 2012 Uri Nodelman, Christian R. Shelton, Daphne Koller

A CTBN is a directed (possibly cyclic) dependency graph over a set of variables, each of which represents a finite state continuous time Markov process whose transition model is a function of its parents.

Expectation Propagation for Continuous Time Bayesian Networks

no code implementations4 Jul 2012 Uri Nodelman, Daphne Koller, Christian R. Shelton

Continuous time Bayesian networks (CTBNs) describe structured stochastic processes with finitely many states that evolve over continuous time.

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