Haystack Blog
Articles about Haystack, NLP, open source and development.
![The Definitive Guide to BERT Models](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/the-definitive-guide-to-bertmodels/thumbnail.png)
The Definitive Guide to BERT Models
The BERT language model greatly improved the standard for language models. This article explains BERT’s history and the language models derived from it.
January 16, 2023![How to Build a Semantic Search Engine in Python](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/how-to-build-a-semantic-search-engine-in-python/thumbnail.png)
How to Build a Semantic Search Engine in Python
Search your large collection of documents in the most effective way using open source tools
November 23, 2022![When and How to Train Your Own Language Model](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/when-and-how-to-train-a-language-model/thumbnail.png)
When and How to Train Your Own Language Model
You’ll almost never have to train a language model from scratch.
August 3, 2022![What is a Language Model?](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/what-is-a-language-model/thumbnail.png)
What is a Language Model?
What are they used for? Where can you find them? And what kind of information do they actually store?
July 20, 2022![What Is Text Vectorization? Everything You Need to Know](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/what-is-text-vectorization-in-nlp/thumbnail.png)
What Is Text Vectorization? Everything You Need to Know
A guide to the history and the role of text vectorization in semantic search systems
December 3, 2021![The Definitive Guide to BERT Models](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/the-definitive-guide-to-bertmodels/thumbnail.png)
The Definitive Guide to BERT Models
The BERT language model greatly improved the standard for language models. This article explains BERT’s history and the language models derived from it.
January 16, 2023![When and How to Train Your Own Language Model](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/when-and-how-to-train-a-language-model/thumbnail.png)
When and How to Train Your Own Language Model
You’ll almost never have to train a language model from scratch.
August 3, 2022![What Is Text Vectorization? Everything You Need to Know](https://haystack-home-ngx8krhz7-deepset-overnice.vercel.app/blog/what-is-text-vectorization-in-nlp/thumbnail.png)
What Is Text Vectorization? Everything You Need to Know
A guide to the history and the role of text vectorization in semantic search systems
December 3, 2021