Learn about the improvements we've made to the inference performance of ELSER v2.

Improved Relevance

Quantization

Block Layout of Linear Layers

Conclusion

Improving information retrieval in the Elastic Stack: Improved inference performance with ELSER v2

Learn about how we're reducing retrieval costs for ELSER v2.

Retrieval Cost Aware Training

Optimizing ELSER Queries

Implementing with an Elasticsearch Query

Improving information retrieval in the Elastic Stack: Optimizing retrieval with ELSER v2

Explore RAG evaluation metrics like BLEU score, ROUGE score, PPL, BARTScore, and more. Discover how Elastic is evaluating RAG with UniEval.

N-gram metrics

BLEU score

ROUGE score

METEOR score

Intrinsic metrics

Perplexity (PPL)

Model-based metrics

BERTScore

BLEURT

BARTScore

UniEval: Elastic’s choice for evaluating RAG

Real-world usage of UniEval

There are various metrics used to evaluate RAG, such as: N-gram metrics (including BLEU score, ROUGE score & METEOR score), Intrinsic metrics (like PPL), Model-based metrics (such as BERTScore, BLEURT and BARTScore), and Elastic's choice: UniEval.

What metrics are commonly used to evaluate RAG?

UniEval evaluates RAG by unifying all evaluation dimensions into a Boolean Question Answering framework, allowing a single model to assess a generated text from various angles.

How does UniEval evaluate RAG?

RAG evaluation metrics: UniEval, BLEU, ROUGE & more

RAG evaluation metrics: A journey through metrics

Deep learning has transformed how people retrieve information. We've created a retrieval model that works with a variety of text with streamlined processes to deploy it. Learn about the model's performance, its architecture, and how it was trained.

The results

What are learned sparse models and why are they attractive?

Exploring the training design space

Improving information retrieval in the Elastic Stack: Introducing Elastic Learned Sparse Encoder, our new retrieval model

Author

Quentin Herreros

Articles

Improving information retrieval in the Elastic Stack: Improved inference performance with ELSER v2

Improving information retrieval in the Elastic Stack: Optimizing retrieval with ELSER v2

RAG evaluation metrics: A journey through metrics

Improving information retrieval in the Elastic Stack: Introducing Elastic Learned Sparse Encoder, our new retrieval model