Talks on Jettro Coenradie

Testing Agents Before They Test You

Thu, 02 Apr 2026 14:25:00 +0200

Voxxed Days Amsterdam 2026 conference talk with Daniël Spee about evaluating AI agentic systems before and after deployment.

From Scratch to Scalable: Building Smarter AI Agents with Frameworks

Tue, 07 Oct 2025 09:30:00 +0200

Hands-on Devoxx Belgium 2025 workshop with Daniël Spee about building a Java AI agent manually and then moving it to a production-oriented agent framework.

Bring a crew to do your job

Tue, 11 Mar 2025 00:00:00 +0100

Talk about multi-agent AI systems, first presented at Blipz on the Radar 2025 and later adapted for AWS Meetup Den Haag and Apeldoorn IT.

Build the best knowledge retriever for your Large Language Model

Thu, 07 Nov 2024 10:35:00 +0100

J-Fall 2024 hands-on workshop with Daniël Spee about building and evaluating the retrieval part of a RAG system using RAG4j/RAG4p.

The Art of Questions: Creating a Semantic Search-Based Question-Answering System with LLMs

Wed, 22 May 2024 11:00:00 +0200

TEQnation 2024 hands-on workshop with Daniël Spee about building and evaluating a RAG-based question-answering system with RAG4j/RAG4p.

Creating a Semantic Search-Based Question-Answering System with LLMs

Mon, 05 Feb 2024 09:00:00 +0100

jFokus 2024 hands-on lab with Daniël Spee, using RAG4j/RAG4p to teach the components of a semantic-search question-answering system.

Verbeter de toegang tot informatie met vraag-antwoordsysteem

Thu, 23 Nov 2023 11:55:00 +0100

Dutch Apeldoorn IT Congres 2023 session with Daniël Spee about improving access to information with a question-answering system.

The Good, the Bad and the Ugly Data

Thu, 23 Nov 2023 11:00:00 +0100

Apeldoorn IT Congres 2023 talk for Luminis about data and the risks/opportunities around modern digital reality and AI.

The Art of Questions: Creating a Semantic Search-Based Question-Answering System with LLMs

Mon, 02 Oct 2023 00:00:00 +0200

Devoxx Belgium 2023 session with Daniël Spee about creating a semantic-search question-answering system with LLMs.

Playing with domain models in code

Thu, 08 Jun 2023 11:00:00 +0200

DDD Europe 2023 hands-on lab with Nico Krijnen about modelling a domain in Java or Kotlin from EventStorming output.

Haystack US 2023 - Jettro Coenradie: Top 8 search topics to teach your team members

Mon, 05 Jun 2023 08:12:04 +0000

Imagine you are (like) me, a seasoned search relevance engineer who embarks on a new journey. You start a project to implement your company’s new killer search service. You go to the project’s kickoff and start talking…

EventStorming, from Knowledge to Working Domain Model

Sun, 01 Jan 2023 00:00:00 +0100

Bookable DDD Academy workshop with Nico Krijnen about moving from EventStorming knowledge to a working domain model.

#Haystack: Jettro Coenradie & Byron Voorbach - Top 10 Lessons learned in search projects

Thu, 02 Jul 2020 11:06:36 +0000

Full Title: Top 10 Lessons learned in search projects the past 10 years More: https://berlinbuzzwords.de/session/top-10-lessons-learned-search-projects-past-10-years One of the things I like, working as a consultant, is…

Will Neural Networks kill the Inverted Index? - Jettro Coenradie [Luminis DevCon 2018]

Thu, 18 Apr 2019 10:11:50 +0000

Will Neural Networks kill the Inverted Index? With search engines like Solr and Elasticsearch becoming mainstream, limitations become apparent. In this talk, you’ll learn about well-known limitations for the inverted…

J-Fall 2018: Jettro Coenradie & Byron Voorbach - Learning to rank search results

Wed, 02 Jan 2019 12:11:07 +0000

Full title: J-Fall 2018: Jettro Coenradie & Byron Voorbach - Learning to rank search results (Combine Machine Learning with Search) With advanced tools available for search like Solr and Elasticsearch, companies are…

Integrating elasticsearch into your CI/CD pipeline

Fri, 28 Sep 2018 12:43:57 +0000

Jettro Coenradie - Luminis - Integrating elasticsearch into your CI/CD pipeline Recorded: 2018-09-19 For numerous projects I have been using elasticsearch as a datastore. Often to function as a search engine, but also…

Building your first recommender - Jettro Coenradie - Codemotion Amsterdam 2018

Mon, 02 Jul 2018 11:24:37 +0000

You see all these websites with recommendations for things to buy or watch. During this talk Jettro walks you through all the steps to create yourself a recommender. Getting data for your recommendations from user…

Learning to rank search results - Byron Voorbach & Jettro Coenradie [DevCon 2018]

Tue, 17 Apr 2018 13:41:25 +0000

With advanced tools available for search like Solr and Elasticsearch, companies are embedding search in almost all their products and websites. Search is becoming mainstream. Therefore we can focus on teaching the search…

Relevant search results (with elasticsearch) - Jettro Coenradie - Codemotion Amsterdam 2017

Tue, 13 Jun 2017 14:16:57 +0000

You want to give your site visitors the best user experience. To accomplish this, your visitors can search as well as browse your content. Search is only relevant when results are meaningful to the visitor. In this talk…

Machine Learning: Building your first recommender by Jettro Coenradie #webinar

Wed, 07 Jun 2017 09:58:14 +0000

During the webinar Jettro walks you through all the steps to create yourself a recommender. Getting data for your recommendations from user events. Handling and enriching these user events before storing them ready to be…

Jettro Coenradie - Making your elastic cluster perform

Fri, 26 Aug 2016 09:39:41 +0000

In the past few years I have helped a lot of customers optimising their elastic cluster. With each version elasticsearch has more options to track performance of your nodes and recently profiling your queries was added…

J-Fall 2015 Speaker Jettro Coenradie - Handling, extending and presenting data with ELK+

Mon, 30 Nov 2015 09:18:07 +0000

More and more people are using the ELK (Elasticsearch Logstash Kibana) stack to analyse their data. Often what they do is using the default logstash, default elasticsearch and standard Kibana dashboards. I would almost…

Real-time data analysis using ELK – Jettro Coenradie [Luminis DevCon 2015]

Thu, 30 Apr 2015 12:00:28 +0000

You are a developer, create applications that generate logs. You would like to monitor those logs to check what the application is doing in production. Or you are an operator in need for information about the whole…

Webinar Persuasive Marketing VEMT - Luminis

Tue, 21 Apr 2015 09:27:27 +0000

VEMT and Luminis present an introductory case on how to apply a Persuasive Marketing Strategy in your company. We take a practical approach and describe the case of ‘Front Fashion’, and imaginary client of VEMT and…

Visualising real time traffic data using Elasticsearch and C3js

Thu, 25 Sep 2014 15:50:00 +0200

GOTO Copenhagen 2014 case-study talk about visualising ANWB traffic and speed data with Spring MVC, Freemarker, C3js, and Elasticsearch.