JaxJUG, 2020 - Scala 3 Features
JaxArcSIG, April 27, 2016: The Scala Ecosystem, Architecture Components
JaxJUG, June 11, 2014: Monitoring Hadoop with Akka
JaxJUG, April 11, 2012: Big Fast Data with MongoDB
JaxJUG, July 13, 2011: Learning Scala through Open Source: regrest
JaxJUG, February 9, 2011: Akka: High-Level Abstractions for Concurrency, Scalability, & Fault-Tolerance
Graph Drawing '93, Paris France: An Automated Graph Drawing System Using Graph Decomposition (pp. 80-81)