A family of exponential-type estimator for estimating population mean in two-phase sampling when the proportion auxiliary character is available proposed this paper. Theoretically, bias and minimum square error (MSE) are obtained. The expression MSE compared with existing estimators literature. optimum values parameters determined. An empirical study was carried out by comparing some reviewed l...

Naturalistic driving studies (NDS) generate tremendous amounts of traffic data and constitute an important component modern safety research. However, analysis the entire NDS database is rarely feasible, as it often requires expensive time-consuming annotations video sequences. We describe how automatic measurements, readily available in database, may be utilized for selection time segments anno...