We propose a new supervised topic model that uses a nonparametric density estimator to model the distribution of real-valued metadata given a topic. The model is similar to Topics Over Time, but replaces the beta distributions used in that model with a Dirichlet process mixture of normals. The use of a nonparametric density estimator allows for the fitting of a greater class of metadata densiti...

A hierarchical lattice model for a disordered two-component one-dimensional harmonic chain with three force constants, corresponding to the three possible pairs of nearest neighbors, is studied. Differences of as little as 20% between the various force constants can appreciably modify the density of states. These changes in the spectrum allow one to roughly characterize which type of interactio...

We present and evaluate a new CNF encoding scheme for reducing probabilistic inference from a graphical model to weighted model counting. This new encoding scheme elaborates on the CNF encoding scheme ENC4 introduced by Chavira and Darwiche, and improves it by taking advantage of log encodings of the elementary variable/value assignments and of the implicit encoding of the most frequent probabi...

The inlluencc of the prior causal knowkd8c of subjeas on the rate of Iaminh the ate8oris formed, and the attributes attended to durin8 kamin8 is explored. Conjunctin comxpS IIC thought to be easier for subjects to learn than disjunctive concepts. Conditions M rctwned under which the oppmire asun. In particular, it is demonstrated that prior knowledlc an inlluena the rate of mncept learning and ...

abstract in recent years, many researchers have attempted to estimate the soil hydraulic functions (e.g. soil moisture characteristics curve, and hydraulic conductivity function) using particle-size distribution (psd) curve. in these studies, an accurate mathematical representation of psd is required for fitting the observed data. so far, some mathematical models were developed with different l...

In this article, we discuss measure theoretic characterizations for weighted composition operators in some operator classes on $L^{2}(Sigma)$ such as, $n$-power normal, $n$-power quasi-normal, $k$-quasi-paranormal and quasi-class$A$. Then we show that weighted composition operators can separate these classes.

objective: the aim of the present study was to evaluate the protective effects of gadolinum on pneumotoxic effects of styrene in rats as an experimental model. materials and methods: in this experimental study a total number of 40 adult male sprague dawley rats that weighed 200 ± 13 g were randomly divided into five groups: i. styrene (st, n=10), ii. styrene+gadolinium chloride (gdcl3, n=10), i...