Traffic matrices are extremely useful for network configuration, management, engineering, and pricing. Direct measurement is, however, expensive in general and impossible in some cases. This paper… (More)
This paper introduces a statistical classifier that quickly locates line outages in a power system utilizing only time series phasor measurement data sampled during the system's transient response to… (More)
Networked applications have software components that reside on different computers. Email, for example, has database, processing, and user interface components that can be distributed across a… (More)
We propose a method for analyzing traffic data in large computer networks such as big enterprise networks or the Internet. Our approach combines graph theoretical representation of the data and graph… (More)
Power grid operators decide where and how much power to generate based on the current topology and demands of the network. The topology can change as safety devices trigger (connecting or… (More)
Phasor measurement units (PMUs) are increasingly important for monitoring the state of an electrical power grid and quickly detecting topology changes caused by events such as lines going down or… (More)
Fast state estimation and system identification are essential to the reliability of the increasingly complex power system. Current estimation, on slower, steady-state, time scales does not model… (More)
This EM review article focuses on parameter expansion, a simple technique introduced in the PX-EM algorithm to make EM converge faster while maintaining its simplicity and stability. The primary… (More)
This paper presents the non-homogeneous Poisson process (NHPP) for modeling the rate of fast radio bursts (FRBs) and other infrequently observed astronomical events. The NHPP, well-known in… (More)