Traditional heterogeneous parallel algorithms, designed for heterogeneous clusters of workstations, are based on the assumption that the absolute speed of the processors does not depend on the size of the computational task. This assumption proved inaccurate for modern and perspective highly heterogeneous HPC platforms. New class of algorithms based on the functional performance model (FPM), re...

For the present work, we deal with the significant problem of high imbalance in data in binary or multi-class classification problems. We study two different linguistic applications. The former determines whether a syntactic construction (environment) co-occurs with a verb in a natural text corpus consists a subcategorization frame of the verb or not. The latter is called Name Entity Recognitio...

Abstract Distributed (Cloud) Storage Systems (DSS) exhibit heterogeneity in several dimensions such as the volume (size) of data, frequency of data access and the desired degree of reliability. Ultimately, the complex interplay between these dimensions impacts the latency performance of cloud storage systems. To this end, we propose and analyze a heterogeneous distributed storage model in which...

For power, cost, and pricing reasons, datacenters are evolving towards heterogeneous hardware. However, MapReduce implementations, which power a representative class of datacenter applications, were originally designed for homogeneous clusters and performed poorly on heterogeneous clusters. The natural solution, rebalancing load among the reducers running on heterogeneous nodes has been explore...

For nodes deployment of heterogeneous sensor network, based on different probability sensing models of heterogeneous nodes, refer to organic small molecule model, ‘class-molecule’ sensing model of heterogeneous nodes is proposed. Combined with DSmT data fusion model, the changes of network coverage ratio after using the new sensing model and data fusion algorithm is studied. According to the re...

An approach to construction of new class of cross-platform communication protocols XDEP (XML Data Exchange Protocol) is proposed. The goal is to facilitate specification-independent development of the client software for mobile devices in heterogeneous environments. The new class of the protocols is self describable which does not require providing specification documents to software developers...

Multi-word units are lexical units that are written as more than one word. They constitute a rather heterogeneous class, whose only unifying feature is that they represent a mismatch between orthographic representation and lexical units. Included in this class are syntactically governed combinations (e.g. correspond with), complex prepositions (e.g. in spite of), collocations (e.g. put into pra...

Drawing on life course and cumulative disadvantage theory, this study examines heterogeneous trajectories of functional limitations and depressive symptoms among late middle-aged individuals. This study used prospective data from 6010 adults, 51 to 64 years old, collected over a 12-year-period from the Health and Retirement Study. Considering the empirical proposition that several physical and ...