8 research outputs found
Bringing Salary Transparency to the World: Computing Robust Compensation Insights via LinkedIn Salary
The recently launched LinkedIn Salary product has been designed with the goal
of providing compensation insights to the world's professionals and thereby
helping them optimize their earning potential. We describe the overall design
and architecture of the statistical modeling system underlying this product. We
focus on the unique data mining challenges while designing and implementing the
system, and describe the modeling components such as Bayesian hierarchical
smoothing that help to compute and present robust compensation insights to
users. We report on extensive evaluation with nearly one year of de-identified
compensation data collected from over one million LinkedIn users, thereby
demonstrating the efficacy of the statistical models. We also highlight the
lessons learned through the deployment of our system at LinkedIn.Comment: Conference information: ACM International Conference on Information
and Knowledge Management (CIKM 2017
Influence of spore size distribution, gas mixture, and process time on the removal rate of B. subtilis spores in low-pressure plasmas
The size reduction of B. subtilis spores due to removal of biological material in low-pressure
plasmas was analyzed in a double inductively coupled plasma system. Argon, nitrogen, and
oxygen at 5 Pa were used as feed gases to investigate the impact of different reactive species
and high energy radiation on the process. The spore size was determined using scanning
electron microscopy images and the length of thousands of spores were evaluated using
an automated algorithm. By applying a statistical test the precision of the mean spore size
determination was increased and the applicability of a normal distribution to describe the
spore size distribution was demonstrated. The removal rate was found to vary depending on
the process gas as well as on the process time and was found to be largest with a mixture of
nitrogen and oxygen and lowest in pure argon. With increasing treatment time the removal
rate decreases significantly and tends to stop in all gases and inhibits the complete removal
of spores and potentially hazardous biological material. Possible explanations for this effect
are the aggregation of non-volatile compounds or the formation of cross-linked layers which
significantly reduce the etching efficiency