Vespa Cloud sample applications - CORD-19 Search

Vespa application creating an index of the CORD-19 dataset.

• Frontend: https://cord19.vespa.ai/
• API: https://api.cord19.vespa.ai/search/?query=sars-cov-2 - API doc
• Deploy a copy of this application by cloning this repo, and deploy it to Vespa Cloud or on your own.

Demonstrated Vespa features

• Accelerated retrieval using weakAnd
• Custom ranking, both BM25, and advanced neural ColBERT
• Document and query time inference using language models (ColBERT)
• Vespa Grouping to allow users to drill down into the result set
• Vespa approximate nearest neighbor search for similar articles functionality
• Vespa de-duping, using model inference to compute N * N document to document similarity, at query time to eliminate near duplicates

$ curl "https://api.cord19.vespa.ai/search/?query=sars-cov-2"