• Who is this?
• What’s Jodel?
• What location challenges do we have?
Who is this?
• Robert Tochman-Szewc
• M. Sc. Economics & Computer Science
• Master’s Thesis: Reddit and Brands
What is Jodel?
• Jodel connects everyone nearby in the most simple way
• The feed shows messages and pictures posted in your immediate
• Users interact with content via
• Up & Down Votes
• Karma rewards users for activity and good content
What is Jodel? (2)
• Wherever you go, your feed will feel different
Meaning for Analytics
• Very different user experiences depending on location
• (Many) common tools lack precise location features
• Only based on IP
• Many users with uncategorized location
• (Possible) loss of information
• Solution: Own analytics solutions from early on
• Every database nowadays has geo-components for queries based on
• That’s how we started.
Location Calculations (2)
• Most of the request are geo-based ones
• Database size has increased a lot
• Read/write-locks started to become more and more of a problem
• Something had to be done
Softening up constraints
• Tradeoff: Functionality vs. Efficiency
• Find out what matters
• Crucial things for user experience
• Efficiency improvements where not crucial