Xerj Studio

BM25 full-text search lab with Elasticsearch-grade ranking a

Xerj Studio!!!!!!!!!!!!!!!!!!!!!!!!!!!! — BM25 full-text search lab with Elasticsearch-grade ranking and scored snippets

How to use Xerj Studio

  1. Add your own documents or keep the built-in samples, then type a query
  2. Press Search to rank every document with the BM25 formula
  3. Drag the k1 and b sliders to see how term saturation and length penalty change scores
  4. Open a result to inspect per-term IDF, frequency and its contribution
  5. Remove documents to rebuild the index and compare rankings

Features

  • Real BM25 scoring with k1 and b sliders that match Elasticsearch defaults
  • Ranked results with score bars and term-level IDF and frequency breakdowns
  • In-memory inverted index with tokenizer, stop words and stemming-style normalization
  • Highlighted search snippets showing exactly where each term matched
  • Add and remove documents to rebuild the index instantly

Frequently asked questions

Is it free?

Yes, unlimited.

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