Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
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Dive into BM25 mechanisms to precisely score lexical queries, set up a hybrid Elasticsearch environment, prepare real enterprise datasets by cleaning and indexing millions of documents, perform practical exercises on BM25 parameter optimization, analyze real-world e-commerce search engine cases, and create your first functional BM25 index with recall and precision metrics.
Generate dense embeddings using models like Sentence Transformers on prepared data, implement ANN vector indexes via FAISS or Pinecone for fast semantic searches, test cosine similarity on ambiguous queries, integrate vector augmentation techniques to enhance relevance, apply to an enterprise RAG use case with Q&A on internal documents, and validate performance through comparative benchmarks.
Fuse BM25 and vector scores using RRF or hybrid models for superior relevance, set up reranking pipelines with Cohere or cross-encoders, experiment on datasets like MS MARCO to refine fusion weights, develop a complete hybrid search prototype connected to an API, simulate high-traffic enterprise scenarios, generate NDCG and MRR evaluation reports, and iterate improvements based on real feedback.
Scale your hybrid search system with Docker and Kubernetes for cloud-native deployments, integrate monitoring via Prometheus and Grafana for latency and throughput, optimize costs with sparse-dense hybrid indexing, test robustness against adversarial attacks, deploy an end-to-end professional RAG project on AWS or GCP, master advanced troubleshooting, and conclude with skills certification and deliverable portfolio.
The Training Hybrid Search - Mastering BM25 and Vectors for RAG program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
Equipment required
For the smooth delivery of the Training Hybrid Search - Mastering BM25 and Vectors for RAG program, the following equipment is required:
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
Skills assessment methods
Assessment of skills acquired during the Training Hybrid Search - Mastering BM25 and Vectors for RAG program is performed through:
Program accessibility
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Enrollment terms and lead times
Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.
The Learni story
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
You meet the trainer beforehand
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Continuous quality follow-up
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A school kit donated to a child for every training booked
To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.
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