Title : Take the stairs! E-Coaching via computers or humans

Presenter Michel Klein
Abstract My talk will be about an experiment that we have performed in the past few months in which 82 students were coached via an app to regularly climb the stairs. The coaching messages were either written by a human coach or generated via our autonomous e-coaching system eMate. However, some participants were deceived into thinking that they would receive one type of coaching (human or computer), while in reality they received the other.

Title : The LDBC Social Network benchmark

Presenter Renzo Angles
Abstract With inherent support for storing and analyzing highly interconnected data, graph and RDF databases appear as natural solutions for developing linked open data applications. However, current benchmarks for these database technologies do not fully attain the desirable characteristics in industrial-strength benchmarks (e.g. relevance, verifiability, etc.) and typically do not model scenarios characterized by complex queries over skewed and highly correlated data. The Linked Data Benchmark Council (LDBC) is an EU project that aims the development of industrial-strength benchmarks for graph and RDF databases. The Social Network Benchmark (SNB) is an LDBC benchmark intended to test various functionalities of systems used for graph data management. The objetive of this talk is to present the status of the SNB and to describe the problems concerning its development.