Data-Driven night

May’s meetup is all about DBs and data!

We will host two back to back sessions. The first one , presented by Petros Kaklamanis will be about Apache Cassandra and the second one presented by Dimitris Kontokostas will be about Graph Databases and Data Integration ( The case of RDF ). As usual thanks to our sponsors, City College for providing the venue, Jetbrains for the 2 free licenses and for the free pizzas

A few things about our presenters and their topics

Petros Kaklamanis is a SW Engineer who has worked in the telecommunication and tourism sectors, mainly on projects related to communication networks and web applications. He is a Java/JVM devotee, a worshiper of beautiful software architecture and elegant design, and most importantly, still an apprentice.

Apache Cassandra , a fault tolerant, high-performance and scalable, NoSQL Database will be presented.
Several aspects will be covered, including its main concepts, use cases, architecture, as well as cluster management and data modeling.
Finally, a toy Java application using Cassandra will be studied.

Dimitris Kontokostas  works (remotely) as a knowledge engineer / researcher at AKSW/KILT group. He is an open source enthusiast, the technical director of DBpedia, a W3c specification editor and a data quality advocate. You can find him on twitter, github or linkedin.

Title : graph databases and data integration – the case of RDF.
We will give a quick intro to property graphs databases (e.g. neo4j) and RDF. We will summarize strengths & weaknesses of each approach and focus on how RDF can help in data integration. We will show a quick overview of various RDF tool stacks with some highlights to Relational DBs to RDF, Rest APIs & RDF, data quality. If there is enough time we will see some demos.

Event Schedule:

… 6:45 : Doors open
7pm – 7:45pm : Apache Cassandra
7:45pm – 8:10pm : Free Pizza by our awesome sponsor ( )
8:15pm – 9:00pm : graph databases and data integration – the case of RDF
9pm…. : Socializing

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