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In the field of numerical analysis, a sparse matrix is a matrix populated primarily with zeros as elements of the table. By contrast, if the number of non-zero elements in a matrix is relatively large, then it is commonly considered a dense matrix. The fraction of zero elements (non-zero elements) in a matrix is called the sparsity (density).
Sparse distributed memory (SDM) is a mathematical model of human long-term memory introduced by Pentti Kanerva in 1988 while he was at NASA Ames Research Center.. This memory exhibits behaviors, both in theory and in experiment, that resemble those previously unapproached by machines – e.g., rapid recognition of faces or odors, discovery of new connections between seemingly unrelated ideas ...
Sparse grid. Sparse grids are numerical techniques to represent, integrate or interpolate high dimensional functions. They were originally developed by the Russian mathematician Sergey A. Smolyak, a student of Lazar Lyusternik, and are based on a sparse tensor product construction. Computer algorithms for efficient implementations of such grids ...
Engram (neuropsychology) An engram is a unit of cognitive information imprinted in a physical substance, theorized to be the means by which memories are stored [1] as biophysical or biochemical [2] changes in the brain or other biological tissue, in response to external stimuli. Demonstrating the existence of, and the exact mechanism and ...
Logical partition. A logical partition ( LPAR) is a subset of a computer's hardware resources, virtualized as a separate computer. In effect, a physical machine can be partitioned into multiple logical partitions, each hosting a separate instance of an operating system. [1]
The study of memory incorporates research methodologies from neuropsychology, human development and animal testing using a wide range of species. The complex phenomenon of memory is explored by combining evidence from many areas of research. New technologies, experimental methods and animal experimentation have led to an increased understanding ...
The method of loci is also known as the memory journey, memory palace, journey method, memory spaces, or mind palace technique. This method is a mnemonic device adopted in ancient Roman and Greek rhetorical treatises (in the anonymous Rhetorica ad Herennium , Cicero 's De Oratore , and Quintilian 's Institutio Oratoria ).
A Wave Of Violence Sweeps Iraq. By Shane Shifflett , Hilary Fung, Eline Gordts and Jay Boice. Tuesday, Dec. 17, 2013, 7:30 am EST. In 2009, Iraqi Prime Minister Nouri al-Maliki stood before lawmakers and experts at the U.S. Institute of Peace in Washington, D.C., and proclaimed, “Today, Iraq has become a peaceful, democratic country that ...