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Data dredging (also known as data snooping or p-hacking) [1] [a] is the misuse of data analysis to find patterns in data that can be presented as statistically significant, thus dramatically increasing and understating the risk of false positives.
The related terms data dredging, data fishing, and data snooping refer to the use of data mining methods to sample parts of a larger population data set that are (or may be) too small for reliable statistical inferences to be made about the validity of any patterns discovered. These methods can, however, be used in creating new hypotheses to ...
A grab dredge. Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.
The company was founded in 1890 as the partnership of William A. Lydon & Fred C. Drews and was named Lydon & Drews dredging company. Early projects included the shoreline structures for the Chicago's Columbian Exposition. The company soon had satellite operations throughout the Great Lakes. It was renamed the Great Lakes Dredge and Dock Company ...
Hydrographic survey is the science of measurement and description of features which affect maritime navigation, marine construction, dredging, offshore wind farms, offshore oil exploration and drilling and related activities. Surveys may also be conducted to determine the route of subsea cables such as telecommunications cables, cables ...
MIKE 21C can be used for designing protection schemes against bank erosion, evaluating measures to reduce or manage shoaling, analyzing alignments and dimensions of navigation channels for minimizing capital and maintenance dredging, predicting the impact of bridge, tunnel and pipeline crossings on river channel hydraulics and morphology, optimizing restoration plans for habitat environment in ...
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Catalist was founded as Data Warehouse, LLC. [3]The founding team of Catalist included Harold M. Ickes, Laura Quinn, and Vijay Ravindran. [4]During the 2008 U.S. presidential campaign, Catalist served as the principal repository of Democratic data, working with over 90 liberal groups including the Service Employees International Union, the Democratic National Committee, and the 2008 Barack ...