Context Driven Search Ranking and Faceting

Transcript

1. Context Driven Search Ranking and Faceting Torsten Bøgh Köster CTO, shopping24 internet group
2. @tboeghk #cto, Search Technology Meetup #hamburg, #10YearsSolr, #roadbike, #landscapephotography Torsten Bøgh Köster | torsten.koester@s24.com | @tboeghk | developer.s24.com
3. e-commerce product search
4. related products on 3rd party websites
5. Open Source Power Delivered.
6. 10 years live on Apache Solr
7. highly customized solr
8. solr.cool extension directory
9. Search is contextless
10. Make search context aware
11. personalization
12. conversational context @chatshopper
13. category context
14. upfront decision for known queries query —> category
15. ambiguous queries „braun“
16. What about new, trending queries?
17. who wants to configure ∞ query entries?
18. (1) Detect category context through current search result inspection
19. Define contexts as Solr queries
20. represent category context definition as bitset Load JSON from Zookeeper Evaluate to BitSet in newSearcher event
21. BitSets are fun! docid —> boolean
22. testing current query against category context definitons
23. Build a PostFilter … QParserPlugin … Collector
24. decisions for a full search result
25. handle collisions
26. (2) faceting depending on detected context
27. Configure facets per context
28. Add own component to configure faceting
29. (3) apply ranking depending on detected context
30. Change scoring during scoring by breaking deferring delegation
32. Gets called for each docid and returns the scroe
34. (4) Make it fast
35. Introduce a bounded ranking buffer
36. Fill a bounded buffer. Decide context upon full buffer or finish() call
37. Next: Make it stable, Make it better
39. Image Credits https://www.flickr.com/photos/salihan/7040163843 https://www.flickr.com/photos/scrapthispack/2034500846 https://www.flickr.com/photos/135652812@N05/23375030520 https://www.flickr.com/photos/cozymax/10345521973 https://www.flickr.com/photos/juliegallo/9503466665 https://www.flickr.com/photos/platform3/11350560215 https://www.flickr.com/photos/photo64/6341135231 https://www.flickr.com/photos/opoterser/3760102198 https://www.flickr.com/photos/smemon/14931786713 https://www.flickr.com/photos/cyclotourist/25362023650 https://www.flickr.com/photos/lain32/8321828310 https://www.flickr.com/photos/oter/5238799883 https://www.flickr.com/photos/clement127/16056864658 https://www.flickr.com/photos/brendanlynch/4765970880 https://www.flickr.com/photos/rrenomeron/8771565313/ https://www.flickr.com/photos/eugenuity/34113551603 https://www.flickr.com/photos/justinwkern/4535555236