Local Search using Solr at YP.com
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How AT&T Interactive used and extended Solr to power local search on YP.com
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Local Search using Solr at YP.com
- 1. How Solr powers local search at YP.com Sameer Maggon November 18, 2009
- 2. YP.com Technical Challenges Custom Relevance Model Scalability / Architecture Conclusion
- 3. YP.com (beta) AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution Local Search Site Uses Solr for search Focused on providing relevant results
- 4. Technical Challenges AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution Relevancy Scalability 10s of millions of records Response time less than 200ms Fault resistant More than 150 million searches per month Topically relevant results Constrained by contextual geographical search Local relevancy is not just keyword and location – ratings, brands, etc
- 5. Custom Relevance Model AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution Topical Geographical Social + + Business with 4.5 stars and 200 reviews is more relevant than 5.0 star 1 review Distance modulation based on business density Complex handling of multiword queries
- 6. Custom Relevance Model AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution Topical Geographical Social + + Business with 4.5 stars and 200 reviews is more relevant than 5.0 star 1 review Distance modulation based on business density Complex handling of multiword queries Field Boosts for certain fields Dismax to handle complex queries LocalSolr as a geographic filter Ability to modulate score based on business density CustomScoreQuery to tie all different scores together
- 7. Geographic Sharding AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution Score Combinations Performance was better Provisioning is a bit complex
- 8. Search Architecture AT&T Proprietary (Restricted) Only for use by authorized individuals or any above-designated team(s) within the AT&T companies and not for general distribution rows shards Feeder / Document Pipeline replication Masters Search Slaves
Notas do Editor
- Thank you Grant, what I am going to be talking about today at a high level is how we use Solr on YP.com.
- I’ll give a brief overview of what YP.com is.