Maximizing the separating margin is crucial for the good generalization performance of Support Vector Machines (SVMs). Analogous to the definition of separation distance or separating margin in SVMs, we propose a definition on separation distance in clustering tasks when a hyperplane is used to separate clusters. For given training data and a given metric distance, by maximizing the proposed se...

We investigate how decoherence affects the short-time separation between quantum and classical dynamics for classically chaotic systems, within the framework of a specific model. For a wide range of parameters, the distance between the corresponding phase-space distributions depends on a single parameter x that relates an effective Planck constant "eff, the Lyapunov coefficient, and the diffusi...

A unique set of physical and optical observations of sediment resuspension was obtained during the passage of two hurricanes, Edouard and Hortense. The eyes of these hurricanes passed within approximately 110 and 350 km, respectively, of our study site on the continental shelf (100 km south of Cape Cod, Massachusetts) within a two-week period in the fall of 1996. Sediments were resuspended to m...

OBJECTIVES To (i) summarize the methods undertaken to measure physical accessibility as the spatial separation between women and health services, and (ii) establish the extent to which distance to skilled care for childbirth affects utilization in Sub-Saharan Africa. METHOD We defined spatial separation as the distance/travel time between women and skilled care services. The use of skilled ca...

seed purification is one of the important agricultural processes to obtain high quality seeds. using modern technologies help producers to do this process with higher precision and accuracy. in order to separate seed impurities, a separation machine called tribo-aero-electrostatic separator was designed. the machine was evaluated by separating impurities of flixweed (descuriania sophia). primar...

In this paper we discus a wide class of loss (cost) functions for non-negative matrix factorization (NMF) and derive several novel algorithms with improved efficiency and robustness to noise and outliers. We review several approaches which allow us to obtain generalized forms of multiplicative NMF algorithms and unify some existing algorithms. We give also the flexible and relaxed form of the N...

Abstract In order to improve the safety of digital subtraction angiography (DSA) equipment in treatment cardiovascular diseases, a hybrid collision detection algorithm based on separation distance is proposed by combining oriented bounding box (OBB) with GJK algorithm. Firstly, according structure DSA equipment, real-time position simulated robot operating system (ROS); Then, OBB used envelope ...