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Hello <<First Name>> 👋

Another month, another newsletter with updates! There's a new Weaviate release with improved UX on semantic searching with our GraphQL API. We've also published a second publicly available Weaviate, this time running with 1.7 million research papers from ArXiv! 

New blog post about Weaviate's core use cases

We've published an article about the use cases that Weaviate solves. Read it in ICT Magazine (in Dutch) or on our website (in English), to learn more about how Weaviate deals with unstructured data.

Weaviate release 0.22.19 with improved user experience for semantic search

In the latest release of Weaviate, we have improved the experience of semantic searches with GraphQL. Now it is possible to query the "_certainty" of data objects, which informs you about how well results match your explorative search. Try it out now by doing a GraphQL Get query with "explore" filter. A video about its usage and benefits, will be published soon. Follow us on social media (Twitter, LinkedIn, Slack) to get notified by new releases of Weaviate and videos. And don't forget to give us a ⭐️ on Github!

What does "certainty" mean?

"Certainty" is a measure of how "close" the returned data object is to your search query. The higher the certainty, the closer the data object is to the search query. This is measured by the cosine similarity between the search concepts and the data object in the vector space. Results of GraphQL semantic search queries by the  'explore' filter, will automatically be ordered with descending "_certainty" values, so that the top results match your search query the most.


ArXiv research papers demo dataset

Would you like to try out Weaviate with its new features quickly? Now you can use, next to the demo Weaviate with news publications, a demo Weaviate with research papers from the ArXiv database. Along with abstracts of over 1.7 million papers, it contains all available metadata, including references to authors, journals, and the full arXiv taxonomy. Plenty of data (2.7 GB!) to try out Weaviate's features! This demo service is running on


Last Friday 16 October we had a fabulous meetup given by our CEO Bob van Luijt, watch it back here. New virtual event will be organized soon, join our Meetup group to get updated (Amsterdam, New York, San Francisco). Meanwhile, you can watch CTO Etienne's video about Weaviate on our Website, with a preview of the upcoming standalone version and performance benchmarks with the Arxiv datasets. We'll keep you posted with upcoming events!

We hope you find the opportunity to start or keep working with Weaviate. Let us know what you think! In the meantime, we are working hard to release Weaviate version 1.0.0 at the end of this year, further improve the experience of semantic searches through GraphQL and the Weaviate Console, and organize more (remote) events to connect with the great community! 

Stay safe and enjoy your day,

The SeMI team


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