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SEMMA is an acronym that stands for Sample, Explore, Modify, Model, and Assess.It is a list of sequential steps developed by SAS Institute, one of the largest producers of statistics and business intelligence software.
The basis for STEP was the Product Data Exchange Specification (PDES), which was initiated during the mid-1980's and was submitted to ISO in 1988. [ 4 ] [ 5 ] The Product Data Exchange Specification (PDES) was a data definition effort intended to improve interoperability between manufacturing companies, and thereby improve productivity.
Early computers often worked lock-step with their main memory, which reduced the advantages of large register files. A common design note from the minicomputer market of the 1960s was to have the registers be physically implemented in main memory, in which case the performance advantage was simply that the instruction could directly refer to the location rather than having to use a second byte ...
The concepts of reservation stations, register renaming, and the common data bus in Tomasulo's algorithm presents significant advancements in the design of high-performance computers. Reservation stations take on the responsibility of waiting for operands in the presence of data dependencies and other inconsistencies such as varying storage ...
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While SAS was originally developed for data analysis, it became an important language for data storage. [5] SAS is one of the primary languages used for data mining in business intelligence and statistics. [29] According to Gartner's Magic Quadrant and Forrester Research, the SAS Institute is one of the largest vendors of data mining software. [24]
SAS is a software suite that can mine, alter, manage and retrieve data from a variety of sources and perform statistical analysis on it. [3] SAS provides a graphical point-and-click user interface for non-technical users and more through the SAS language.
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