We present results from laboratory experiments of the downslope propagation a finite volume released gravity current by means combined PIV/PLIF measurements. The experimental data were used to estimate global characteristics current, such as speed, lateral surface and buoyancy, revealing that thermal theory is robust model can predict quantities properly, especially models Beghin et al. (1981),...

Density-based clustering algorithms are widely used for discovering clusters in pattern recognition and machine learning. They can deal with non-hyperspherical robust to outliers. However, the runtime of density-based is heavily dominated by neighborhood finding density estimation which time-consuming. Meanwhile, traditional acceleration methods using indexing techniques such as KD-tree may not...