Tests are described comparing the sensitivity of the Erickson dipole feeds with the new strut-straddling Modified J-Pole (MJP) feeds using the new VLA Lowband receivers in the 54-86 MHz window. These tests show that the sensitivity of the MJP feeds for the “B” mounting position is comparable to the Erickson dipoles. For the “C” mounting position the MJP sensitivity is a factor of two worse than...

We propose the Multiple Join Path (MJP) framework for obtaining high quality information by linking fields across multiple databases, when the underlying databases have poor quality data, which are characterized by violations of integrity constraints like keys and functional dependencies within and across databases. MJP associates quality scores with candidate answers by first scoring individua...

Markov jump processes (MJPs) are used to model a wide range of phenomena from disease progression to RNA path folding. However, maximum likelihood estimation of parametric models leads to degenerate trajectories and inferential performance is poor in nonparametric models. We take a small-variance asymptotics (SVA) approach to overcome these limitations. We derive the small-variance asymptotics ...

To obtain the SVA objective from the parametric MJP model, we begin by scaling the exponential distribution f(t;λ) = λ exp(−λt), which is an exponential family distribution with natural parameter η = −λ, log-partition function ψ(η) = − ln(−η), and base measure ν(dt) = 1 [1]. To scale the distribution, introduce the new natural parameter η̃ = βη and log-partition function ψ̃(η̃) = βψ(η̃/β). The new ...

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