The EU SatCen organised on Wednesday 13th of December 2017 (15.00-16.00 CET) an Hangout session on “Big Data for Secure Societies” in the framework of the BigDataEurope project and with regard to the “Secure Societies” Horizon 2020 Societal Challenge. The Hangout was the fifth of a scheduled series within the BigDataEurope project for the Secure Societies domain and it has been followed by attendees coming from EC, EU entities, ESA, private companies, universities and other public entities from a variety of domains in Secure Societies.
We are happy to announce SANSA 0.3 – the third release of the Scalable Semantic Analytics Stack. SANSA employs distributed computing via Apache Spark and Flink in order to allow scalable machine learning, inference and querying capabilities for large knowledge graphs.
- Website: http://sansa-stack.net
- GitHub: https://github.com/SANSA-Stack
- Download: http://sansa-stack.net/downloads-usage/
- ChangeLog: https://github.com/SANSA-Stack/SANSA-Stack/releases
You can find the FAQ and usage examples at http://sansa-stack.net/faq/.
The following features are currently supported by SANSA:
- Reading and writing RDF files in N-Triples, Turtle, RDF/XML, N-Quad format
- Reading OWL files in various standard formats
- Support for multiple data partitioning techniques
- SPARQL querying via Sparqlify (with some known limitations until the next Spark 2.3.* release)
- SPARQL querying via conversion to Gremlin path traversals (experimental)
- RDFS, RDFS Simple, OWL-Horst (all in beta status), EL (experimental) forward chaining inference
- Automatic inference plan creation (experimental)
- RDF graph clustering with different algorithms
- Rule mining from RDF graphs based AMIE+
- Terminological decision trees (experimental)
- Anomaly detection (beta)
- Distributed knowledge graph embedding approaches: TransE (beta), DistMult (beta), several further algorithms planned
Deployment and getting started:
- There are template projects for SBT and Maven for Apache Spark as well as for Apache Flink available to get started.
- The SANSA jar files are in Maven Central i.e. in most IDEs you can just search for “sansa” to include the dependencies in Maven projects.
- There is example code for various tasks available.
- We provide interactive notebooks for running and testing code via Docker.
Greetings from the SANSA Development Team
[BigDataEurope (BDE) SC4 and the LeMO project have established a cooperation, as both focus on big data in the transport sector. LeMO project representatives Arnaud Burgess and Maria Rodrigues (Panteia) already participated in the workshop, organised by BDE SC4, in September to present their project. Now, Tharsis Teoh (Panteia) has kindly contributed a blog entry.]