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SPATIO-TEMPORAL CHANGE OF VEGETATION COVERAGE AND ITS DRIVING FORCES BASED ON LANDSAT IMAGES: A CASE STUDY OF CHANGCHUN CITY
Vegetation Coverage NDVI Spatio-Temporal Variations Remote Sensing Changchun
2018/5/11
Based on the Landsat images in 2006, 2011 and 2015, and the method of dimidiate pixel model, the Normalized Difference Vegetation Index (NDVI) and the vegetation coverage, this paper analyzes the spat...
Volatilities That Change with Time: The Temporal Behavior of the Distribution of Stock-Market Prices
spectral analysis noise reduction Rademacher distribution
2010/10/21
While the use of volatilities is pervasive throughout finance, our ability to determine the instantaneous volatility of stocks is nascent. Here, we present a method for measuring the temporal behavior...