Identifying chronostratigraphic breaks in aeolian sediment profiles using near-surface luminescence dating and changepoint analysis

Identifying Root Causes of Web Performance Degradation Using Changepoint Analysis

The large scale of the Internet has offered unique economic opportunities, that in turn introduce overwhelming challenges for development and operations to provide reliable and fast services in order to meet the high demands on the performance of online services. In this paper, we investigate how performance engineers can identify three different classes of externally-visible performance proble...

Connecting aeolian sediment transport with foredune development

Foredune volume is an important factor for coastal safety and depends on the balance between erosion through wave attack and sediment input via aeolian transport. Dune erosion can be simulated with good accuracy, but predictions of aeolian sediment transport into the foredunes are still difficult to make. As part of a larger project that aims to model foredune development over decades, the goal...

Distribution-Free Changepoint Detection for Nonlinear Profiles

We consider changepoint detection in a process in which the observed points are profiles: large sets of functionally related points (x, y). Few changepoint detection methods have been proposed that don’t rely in some capacity on the assumption that the observational errors are normally distributed. In this paper, a nonparametric distribution-free wavelet method is proposed for monitoring for ch...

Text Analysis of Online Dating Profiles

Use of luminescence dating in archaeology

With improvements in methodology and instrumentation, luminescence dating is becoming a much more useful chronometric tool in archaeology. Procedures for dating ceramics are relatively routine and their accuracy has been demonstrated in a number of studies. Research is aimed at applying ceramic dating in situations where other methods lack the direct dating ability of luminescence to resolve ch...