19 April 2018 Engineering

Practical BM25 - Part 1: How Shards Affect Relevance Scoring in Elasticsearch

By Shane Connelly

Find out how similarity ranking (relevancy) is impacted in Elasticsearch by the amount of shards in your index.

19 April 2018 Engineering

Practical BM25 - Part 2: The BM25 Algorithm and its Variables

By Shane Connelly

Learn more about how BM25 works by exploring the equation, variables, and concepts behind the default similarity ranking algorithm in Elasticsearch.

19 April 2018 Engineering

Practical BM25 - Part 3: Considerations for Picking b and k1 in Elasticsearch

By Shane Connelly

While there are no "best values" for b and k1, there are best practices and research data that should be considered before tuning these BM25 components.

03 April 2018 Engineering

Securing GDPR Personal Data with Access Controls

By Christian DahlqvistMike Paquette

Securing and controlling access to personal data is fundamental to GDPR. See how Elastic security features can help support a wide range of access policies.

29 March 2018 Engineering

Sankey Visualization with Vega in Kibana 6.2

By Yuri Astrakhan

Building Sankey graphs in Kibana using Vega, an open source JSON-based, declarative language.

28 March 2018 Engineering

Here to Help... (An Elastic{ON} Canvas Story)

By Jamie Smith

Canvas is an extensible, creative space for live data, which is exactly what we used it for at Elastic{ON} at the AMA Booth. Was your question answered?

14 March 2018 Engineering

But First, Coffee... (An Elastic{ON} Canvas Story)

By Jamie Smith

Canvas is a composable, extensible, creative space for live data, which is exactly what we did at Elastic{ON} for coffee consumption. How much did you drink?

13 March 2018 Engineering

Plugins Alongside the X-Pack Security Plugin for Elasticsearch

By Albert Zaharovits

Best practices for plugin developers to make sure their code does not undermine the X-Pack security features for Elasticsearch.

08 March 2018 Engineering

Monitoring Azure with the Elastic Stack - Feedback Welcome

By Alvin Chen

The upcoming Logstash Azure Monitoring module will be the easiest way to monitor your Azure infrastructure and services with the Elastic Stack.