A propos de l'auteur
Alex is a principal consultant on the services EMEA team. He holds a master's degree in computer engineering from the University of Toronto, a B.Sc. from the University of Manitoba, and an MBA from the IESE Business School in Barcelona. Check out his personal blog at www.AlexMarquardt.com.
Articles de l'auteur
22 décembre 2025
Influencing BM25 ranking with multiplicative boosting in Elasticsearch
Learn why additive boosting methods can destabilize BM25 rankings and how multiplicative scoring provides controlled, scalable ranking influence in Elasticsearch.
17 décembre 2025
Boosting e-commerce search by profit and popularity with the function score query in Elasticsearch
Discover how to optimize e-commerce search by blending BM25 relevance with profit margin and popularity signals in Elasticsearch using the function_score query.
10 décembre 2025
How to improve e-commerce search relevance with personalized cohort-aware ranking
Improve e-commerce search relevance with explainable, cohort-aware ranking in Elasticsearch. Learn how multiplicative boosting delivers stable, predictable personalization at query time.
8 décembre 2025
How excessive replica counts can degrade performance, and what to do about it
Learn about the impact of high replica counts in Elasticsearch, and how to ensure cluster stability by right-sizing your replicas.
21 octobre 2024
Efficient bitwise matching in Elasticsearch
Explore six approaches to encoding and matching binary data in Elasticsearch, including terms encoding (my preferred approach), boolean encoding, sparse bit position encoding, integer encoding with exact matching, integer encoding with scripted bitwise matching, and integer encoding with ESQL for bitwise matching, with practical examples and use cases.