We propose a new objective function for superpixel segmentation. This objective function consists of two components: entropy rate of a random walk on a graph and a balancing term. The entropy rate favors formation of compact and homogeneous clusters, while the balancing function encourages clusters

We propose a new objective function for clustering. This objective function consists of two components: the entropy rate of a random walk on a graph and a balancing term. The entropy rate favors formation of compact and homogeneous clusters, while the balancing function encourages clusters

examine both the performance of the VC fund and of the fund's portfolio companies. At the fund level, we examine "exit rates" in the absence of publicly available data on VC fund returns. We define a fund's exit rate as the fraction of portfolio companies that are successfully exited

Finite-temperature thermodynamic theory is developed for equilibrium arrays of two-dimensional monolayer-high islands in heteroepitaxial systems at submonolayer coverage. It is shown that the entropy contribution to the Helmholtz free energy of the system favors formation of smaller islands

, we find that flows often enhance grouping by increasing the encounter rate among groups and thereby promoting merger into larger groups; the effect breaks down for strong flows. We discuss the transformation of individual-based models into continuum models for the density of organisms. A number

of these cardiomyocytes. Cultured ventricular cardiomyocytes from adult rats were exposed to N-nitro-L-arginine (L-NNA) to inhibit global NO formation, and cultured cardiomyocytes derived from eNOS-deficient mice were used as a model of genetic knockout of eNOS. Cell growth, formation of oxygen-derived radicals (reactive

ideology, a policy was rated more favorably if it appeared contrary to the assumed ideological biases of its supporters. The generous policy was thus rated more positively (M ϭ 4.94) than the stringent one (M ϭ 3.70) in the Republicans favor condition, t(64) ϭ 3.93, p Ͻ .001, and the stringent policy

Proton order is less constrained in a fully H-bonded, adsorbed H2O monolayer than in bulk ice. Thus, though weakly, configurational entropy favors wetting by deposited H2O over formation of 3-D crystalline mounds. A Pauling-type estimate yields a 0 K adlayer entropy of 1/2kB ln(9/2), almost twice

the activation energy and resulted in increases in both activation enthalpy and entropy. Revealed by molecular dynamics simulations, the unrestrained arginine residue can populate more rotamer conformations, and the loss of this conformational freedom upon the formation of transition state justified the observed

task. In this paper we propose a novel adaptation of this language modeling approach to rating-based Collaborative Filtering. In a memory-based approach, we apply the model to the formation of user neighbourhoods, and the generation of recommendations based on such neighbourhoods. We report