Across
- 2. ______ refers to search that accounts for how close within a record multiple items should be to each other.
- 4. Set of all distinct index terms in the collection.
- 5. Eliminating ______ decreases the space size requirement of indices by about 50%.
- 8. IDF stands for _____ document frequency.
- 10. ______ function assigns scores to documents with regard to a given query.
- 11. BM25 stands for best _____ 25.
- 12. User must first translate the information need into a _____ which can be processed by the search engine.
Down
- 1. Reduction of distinct words to their common grammatical root
- 2. _____ is a set of syntactic features that must be found in a text segment.
- 3. A famous query protocol in 1990's
- 6. Both retrieval and browsing are _____ actions.
- 7. In set based model ______ is used in stead of index terms.
- 9. Boolean model is based on ____ theory.