KrigInv: An efficient and user-friendly implementation of batch-sequential inversion strategies based on kriging

Several strategies relying on kriging have recently been proposed for adaptively estimating contour lines and excursion sets of functions under severely limited evaluation budget. The recently released R package KrigInv 3 is presented and offers a sound implementation of various sampling criteria for those kinds of inverse problems. KrigInv is based on the DiceKriging package, and thus benefits from a number of options concerning the underlying kriging models. Six implemented sampling criteria are detailed in a tutorial and illustrated with graphical examples. Different functionalities of KrigInv are gradually explained. Additionally, two recently proposed criteria for batch-sequential inversion are presented, enabling advanced users to distribute function evaluations in parallel on clusters or clouds of machines. Finally, auxiliary problems are discussed. These include the fine tuning of numerical integration and optimization procedures used within the computation and the optimization of the considered criteria.

Die Palästina-Publikationen des Palestine Exploration Fund : [mit einer Reproduktion der Reliefkarte]

Palästina / Expedition

Der Bericht des Hilfsfonds (Emergency-Fund) von 1929 [Nachricht]

Abraham Ulitzur

Ein bedeutender Fund althebräischer Inschriften aus der Zeit des Königs Ahab von Israel

Abraham Schalom Ezekiel Yahuda

Palestine Exploration Fund Quarterly statement [Rezension]

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Family-Friendly Employment Policies: What do People Want?

This research examines what people want in terms of family-friendly employment policies within the workplace. Two groups were compared: undergraduate students preparing themselves for the workforce and Baby Boomers that are about to, or already have, retired. The sample was chosen from current University of Connecticut fourth year students and alumni who graduated from the University of Connecticut between 1970 and 1978. Data was collected using an online questionnaire, mainly consisting of closed-ended questions on four and five point Likert scales. Analysis indicates differences between males and females in their response to employment policies, particularly their opinions in terms of sick leave. Alumni, many of whom are part of the sandwich generation, are less worried about child, partner, or elder care responsibilities than one might expect.