Definition of "semivariogram" []

• A function of the spatial dependence of semivariance; a graph of this function (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "The paper shows how use of a structural-based approach improved capabilities for mapping and monitoring peatland condition with an improvement in accuracy from 71. 8% (without structural estimates) to 88. 0% when airborne LiDAR data (which had been spatially preprocessed using a technique called semivariogram analysis) were used."
• "Before I had this thing running, the measure of autocorrelation I was using in my accent model was to crank out a semivariogram for all the point pairs, add up the average value-distance for all the pairs on the “near” half of the variogram, add up the average for the “far” half, and compare the ratio of the “near” and “far” averages."
• "The sampling variogram, unlike the semivariogram and the variogram, shows where a significant degree of spatial dependence in the sample space or sampling unit dissipates into randomness when the variance terms of a temporally or in-situ ordered set are plotted against the variance of the set and the lower limits of its 99% and 95% confidence ranges."