Daniël Spee
Search Engineer at Luminis
Amsterdam, The Netherlands
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Daniël Spee is a software engineer at Luminis with a passion for search, AI, and data-centric systems. He believes that great search goes beyond technology and requires a deep understanding of user intent, data semantics, and the business context that drives decision-making.
By combining AI techniques with classical search approaches, Daniël builds smarter, context-aware systems that bridge the gap between information and insight. His current focus is on leveraging AI agents and retrieval pipelines to automate and enhance real-world workflows, turning data into action and intelligence.
Area of Expertise
Topics
Retrieval Evaluated: The Quest for Search Quality
In this session, I’m excited to delve into the fascinating world of search and information retrieval systems, especially as they play a pivotal role in the cutting-edge field of Retrieval Augmented Generation (RAG). I’ll be sharing the ins and outs of how we measure success in search systems, touching on those all-important metrics like precision, recall, and beyond – but all with a friendly, accessible twist.
Get ready for a journey through some engaging examples that highlight the importance of getting retrieval just right, not only for the sake of user satisfaction but also for the integrity and usefulness of the information being served.
But that’s not all – I’ll also guide you through the evolving landscape of search evaluation, from traditional methods to the latest innovations that are reshaping how we understand and improve search functionalities in the era of AI and machine learning. Expect practical advice, thought-provoking insights, and maybe a few laughs as we explore how to keep our search systems on the cutting edge and truly responsive to user needs.
Join me for a session filled with valuable takeaways, whether you’re deeply embedded in the tech world or just curious about how modern search technologies are shaping our access to information. Together, we’ll uncover the secrets behind making search systems more effective, intuitive, and, ultimately, more human.
Revolutionizing Customer Experience: Enhancing Information Access with Question-Answering Systems
Are you tired of customers struggling to find the answers they need on your website? Say goodbye to frustrating searches and embrace a new era of effortless information access. Join us for an exciting talk on revolutionizing customer experience through question-answering systems.
In this presentation, we invite you to explore the potential of the newest language libraries and tools. Discover how they can transform users’ interactions with your online platform.
We'll start by demystifying the core concepts behind question-answering systems, breaking down their purpose and functionality. Dive into the world of index-based search, vector-based search, and Large Language Models (LLMs), the essential building blocks powering this technological leap forward.
But we won't stop at theory alone. We give you a demonstration where you'll see these systems in action. Follow along as we walk you through a content pipeline that extracts content from different sources and indexes the content into vector databases—followed by different patterns to retrieve information from the vector databases and generate answers with multiple LLMs, enabling the dynamic generation of accurate and personalized answers in real-time.
By the end of our presentation, you'll understand the underlying structure of a question-answering system, empowering you to enhance information access on your website or within your application. Join us on this exciting journey and unlock the true potential of question-answering systems!
The Art of Questions: Creating a Semantic Search-Based Question-Answering System with LLMs
Ever thought about building your very own question-answering system? Like the one that powers Siri, Alexa, or Google Assistant? Well, we've got something awesome lined up for you!
In our hands-on workshop, we'll guide you through the ins and outs of creating a question-answering system. We prefer using Python for the workshop. We have prepared a GUI that works with python. If you prefer another language, you can still do the workshop, but you will miss the GUI to test your application. You'll get your hands dirty with vector stores and Large Language Models, we help you combine these two in a way you've never done before.
You've probably used search engines for keyword-based searches, right? Well, prepare to have your mind blown. We'll dive into something called semantic search, which is the next big thing after traditional searches. It’s like moving from asking Google to search "best pizza places" to "Where can I find a pizza place that my gluten-intolerant, vegan friend would love?" – you get the idea, right?
We’ll be teaching you how to build an entire pipeline, starting from collecting data from various sources, converting that into vectors (yeah, it’s more math, but it’s cool, we promise), and storing it so you can use it to answer all sorts of queries. It's like building your own mini Google!
We've got a repository ready to help you set up everything you need on your laptop. By the end of our workshop, you'll have your question-answering system ready and running.
So, why wait? Grab your laptop, bring your coding hat, and let's start building something fantastic together. Trust us, it’s going to be a blast!
Some of the highlights of the workshop:
Use a vector store (OpenSearch, Elasticsearch, Weaviate)
Use a Large Language Model (OpenAI, HuggingFace, Cohere, PaLM, Bedrock)
Use a tool for content extraction (Unstructured, Llama)
Create your pipeline (Langchain, Custom)
J-Fall 2025 Sessionize Event Upcoming
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