A critical requirement in achieving robust space situational awareness (SSA) is the ability to process and reduce the number of uncorrelated tracks (UCTs), which are newly acquired tracks on objects that do not associate (correlate) with any known objects in the space catalog.1 While there are many reasons for UCTs, a common source is that of a maneuvering space object. The ability to assess th...

Singular spectrum analysis (SSA) is a technique of time series analysis and forecasting. It combines elements of classical time series analysis, multivariate statistics, multivariate geometry, dynamical systems and signal processing. SSA aims at decomposing the original series into a sum of a small number of interpretable components such as a slowly varying trend, oscillatory components and a ‘...

OBJECTIVE To correlate the clinical course of the disease with the titer, the isotype profile and the switch of the anti-Ro/SSA antibodies in a cohort of patients affected by UCTD. METHODS One hundred selected patients with anti-Ro/SSA antibodies detected by counterimmunoelectrophoresis (CIE), and affected by UCTD with a mean follow-up of 7.6 years (SD 4.8 yrs.), were studied. The titer of Ig...

The leaf angle between stem and sheath (SSA) is an important rice morphological trait. The objective of this study was to develop and validate a dynamic SSA model under different nitrogen (N) rates for selected rice cultivars. The time-course data of SSA were collected in three years, and a dynamic SSA model was developed for different main stem leaf ranks under different N rates for two select...

(1) Background: Feature selection is the biggest challenge in feature-rich sentiment analysis to select best (relevant) feature set, offer information about relationships between features (informative), and be noise-free from high-dimensional datasets improve classifier performance. This study aims propose a binary version of metaheuristic optimization algorithm based on Swarm Intelligence, nam...

Novel stimulus detection by single neurons in the auditory system, known as stimulus-specific adaptation (SSA), appears to function as a real-time filtering/gating mechanism in processing acoustic information. Particular stimulus paradigms allowing for quantification of a neuron's ability to detect novel or deviant stimuli have been used to examine SSA in the inferior colliculus, medial genicul...

Over the past 20 years, static single assignment form (SSA) has risen to become the compiler intermediate representation of choice. Compiler developers cite many qualitative reasons for choosing SSA. However in this study, we present clear quantitative benefits of SSA, by applying several standard software metrics to compiler intermediate code in both SSA and non-SSA forms. The average complexi...