Unfortunately, most talks would not go into much technical detail; much buzz word dropping.
10th version of the SemTech conference. People from mainly industry but also researchers meet to exchange experiences with Semantic Web technologies. Around 150 participants (SemTech, only; without collocated NoSQL conference).
Great overview of companies and topics in the field of Semantic Technologies. Great for networking.
Main take-home messages: Apache Spark for fast in-memory-cluster-based analytics is gaining momentum as an alternative to hadoop and mapreduce. The main graph-based data models discussed seem to be RDF (surprise!) and the property-graph model as used by Neo4J and SAP (relations as first-class citizens to which arbitrary properties such as weights can be attached); oracle showed in a presentation how to (partly) quite trivially map between the two models. Based on the workshop "RDF as a Universal Healthcare Exchange Language - 2nd Annual", also other people recommend using RDF for representing medical information as we do in the SFB project.
Semantic Technology and Business Conference