Recommended
More Related Content
Similar to Looking For Steam Players - Insight Project
Similar to Looking For Steam Players - Insight Project (20)
Recently uploaded
Recently uploaded (20)
Looking For Steam Players - Insight Project
- 1. Now Looking for Players… By: Margery (Midge) Hines
- 2. Now Looking for Players… By: Margery (Midge) Hines
- 3. Now Looking for Players… By: Margery (Midge) Hines
- 4. Now Looking for Players… By: Margery (Midge) Hines
- 9. Measuring Similarity𝑢𝑠𝑒𝑟𝑠 𝑔𝑎𝑚𝑒𝑠 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑢1 𝑢2 𝑢3 𝑢4 ⋮ 1 𝑚32 𝑚42 𝑚12 𝑚21 𝑚41 1 1 𝑚23 1 𝑚31 𝑚13 𝑚14 𝑚42 𝑚43 𝑚34 mij = 𝑤𝑃𝑖𝑗 + 1 − w 𝑅𝑖𝑗 Rank 𝑚𝑖𝑗 to find top user matches! 𝑝𝑖𝑗 = 𝑁𝑜𝑟𝑚𝑎𝑙𝑖𝑧𝑒𝑑 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒 𝑟𝑖𝑗 = 𝑁𝑜𝑟𝑚𝑎𝑙𝑖𝑧𝑒𝑑 𝑅𝑒𝑐𝑒𝑛𝑡 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑔1 𝑔2 𝑔3 𝑔4 ⋮ 𝑝11 𝑝32 𝑝42 𝑝12 𝑝21 𝑝41 ? ? ? ? ? ? ? ? 𝑝23 𝑝42 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑔1 𝑔2 𝑔3 𝑔4 ⋮ 𝑟11 𝑟32 𝑟42 𝑟12 𝑟21 𝑟41 ? ? ? ? ? ? ? ? 𝑟23 𝑟42 Pij = 𝑢𝑖 𝑢𝑗 𝑢𝑖 𝑢𝑗 Compute Cosine Similarity Rij = 𝑢𝑖 𝑢𝑗 𝑢𝑖 𝑢𝑗 Compute Cosine Similarity
- 10. Validation User Similarity Distribution Profile Types Obscure Gamers AAA Gamers Broad Gamers
- 11. Validation User Similarity Distribution Profile Types Obscure Gamers AAA Gamers Broad Gamers
- 12. Validation User Similarity Distribution Profile Types Obscure Gamers AAA Gamers Broad Gamers
- 13. Margery (Midge) Hines PhD Electrical Engineering from Northeastern University Dissertation: Autonomous landmine detection using GPR for humanitarian demining
- 14. Extra Slides
- 15. Improved Matching System: User Playtime Scores • Score each user’s game by relative playtime compared to the set of people who own that game using deciles 𝑝𝑖𝑗 = 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒 𝑆𝑐𝑜𝑟𝑒 (𝑠𝑐𝑎𝑙𝑒 1 𝑡𝑜 10) 𝑟𝑖𝑗 = 𝑅𝑒𝑐𝑒𝑛𝑡 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒 𝑆𝑐𝑜𝑟𝑒 (𝑠𝑐𝑎𝑙𝑒 1 𝑡𝑜 10) 𝑝𝑖𝑗 = 𝑁𝑜𝑟𝑚𝑎𝑙𝑖𝑧𝑒𝑑 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒 𝑟𝑖𝑗 = 𝑁𝑜𝑟𝑚𝑎𝑙𝑖𝑧𝑒𝑑 𝑅𝑒𝑐𝑒𝑛𝑡 𝑃𝑙𝑎𝑦𝑡𝑖𝑚𝑒
- 16. Improved Matching System: Results • On average all similarity scores are lower • Random Pairing < Friend Pairing < Algorithm Pairing Similarity Matrix
- 17. Future Improvements Additional User Matching Features • Number and/or type of steam achievements for each game • Match based on features using SVD after filtering database for specific game of choice • Before matching filter by location (low ping, time-zones) Site Enhancement • Include video game recommendations • Add Steam open-id support Play Style Skill Level
- 18. Similarity Metric Visualization 𝑢𝑠𝑒𝑟𝑠 𝐴) 𝑂𝑟𝑖𝑔𝑖𝑛𝑎𝑙 𝑆𝑖𝑚𝑖𝑙𝑎𝑟𝑖𝑡𝑦 𝑀𝑎𝑡𝑟𝑖𝑥 𝐵) 𝐴 𝑤𝑖𝑡ℎ 𝑆𝑜𝑟𝑡𝑒𝑑 𝑅𝑜𝑤𝑠 𝐶) 𝐵 𝑤𝑖𝑡ℎ 𝑅𝑜𝑤𝑠 𝑅𝑎𝑛𝑘𝑒𝑑 𝑆𝑜𝑟𝑡𝑒𝑑 𝑏𝑦 𝐴𝑣𝑔. 𝑆𝑐𝑜𝑟𝑒 0 1 Note: The strong similarity in the diagonal of A and first column of B and C is due to users match with themselves
- 19. Alternative Method for Feature Matching: SVD 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑔1 𝑔2 𝑔3 𝑔4 ⋮ 𝑠11 𝑠32 𝑠42 𝑠12 𝑠21 𝑠41 ? ? ? ? ? ? ? ? 𝑠23 𝑠42 𝑓1 𝑓2 … 𝑢1 𝑢2 𝑢3 𝑢4 ⋮ 𝑢11 𝑢32 𝑢12 𝑢21 𝑢41 𝑢31 𝑢22 𝑢42 𝑢13 𝑢33 𝑢43 𝑢23 𝑓1 𝑓2 … 𝑓1 𝑓2 ⋮ 𝑤11 0 0 0 0 0 0 𝑔1 𝑔2 𝑔3 … 𝑓1 𝑓2 ⋮ 𝑔11 𝑔32 𝑔12 𝑔21 𝑔31 𝑔22 𝑔13 𝑔33 𝑔23 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑢1 𝑢2 𝑢3 𝑢4 ⋮ 1 𝑚32 𝑚42 𝑚12 𝑚21 𝑚41 1 1 𝑚23 1 𝑚31 𝑚13 𝑚14 𝑚42 𝑚43 𝑚34 𝑤22 𝑤33 Validation
- 20. So why not SVD? • Feature matching doesn’t guarantee that matched users will own or play the same games
- 21. User’s Game Preference Distribution of User’s Maximum Game Preferences Some users spend all playtime on Steam on Dota 2 Few users spend all playtime on Steam on Portal
- 22. User 1: Looking For Players Best Match: 70% Compatibility 69% Compatibility Suggestion: You might enjoy Borderlands ! Worst Match: 0.01% Compatibility Actual Friend of User 1! Example Comparison of User Match Result
- 24. Steam’s Current Game Recommendations: Personal Experience Games Steam Recommends Me My Playtime by Title Users’ Playtime for “Tiny and Big: Grandpa’s Leftovers” • Compared to my other games, my playtime of this game seems small • Compared to other people who own this game my playtime is small (lowest decile)
- 25. Implying User Scores Based on Playtime • Score each user’s game by relative playtime compared to the set of people who own that game using deciles
- 26. Game Recommendations Using SVD 𝑢1 𝑢2 𝑢3 𝑢4 … 𝑔1 𝑔2 𝑔3 𝑔4 ⋮ 𝑠11 𝑠32 𝑠42 𝑠12 𝑠21 𝑠41 ? ? ? ? ? ? ? ? 𝑠23 𝑠42 Compute SVD 𝑓1 𝑓2 … 𝑢1 𝑢2 𝑢3 𝑢4 ⋮ 𝑢11 𝑢32 𝑢12 𝑢21 𝑢41 𝑢31 𝑢22 𝑢42 𝑢13 𝑢33 𝑢43 𝑢23 𝑔1 𝑔2 𝑔3 … 𝑓1 𝑓2 ⋮ 𝑔11 𝑔32 𝑔12 𝑔21 𝑔31 𝑔22 𝑔13 𝑔33 𝑔23 𝑓1 𝑓2 … 𝑓1 𝑓2 ⋮ 𝑤11 0 0 0 0 0 0𝑤22 𝑤33 Train SVD with 80% of Data Test SVD with 20% of Data 𝑢1 𝑢2 𝑢3 … 𝑔1 𝑔2 ⋮ 𝑠11 𝑠12 𝑠21 ? ? 𝑠23 Predict SVD 𝑢1 𝑢2 𝑢3 … 𝑔1 𝑔2 ⋮ 𝑠11 𝑠12 𝑠21 ? ? 𝑠23 Calculate RMSE RMSE = 2.7 NRMSE = 0.31 Netflix’s NRMSE = 0.21 𝑅𝑀𝑆𝐸 = 1 𝑛 𝑖𝑗 𝑠𝑖𝑗 − 𝑠𝑖𝑗 2
- 28. Independent Game Development is on the Rise!
- 29. Only 31% of Steam games are rated on Metacritic 124 games have been purchased but never been played! Not all games are played; Not all games are rated
- 30. Strictly Single Player Multiplayer The playtime on only 6 games is equal to the total playtime on all others Multiplayer games tend to have greater playtime than strictly single-player games
- 31. Steam Games by Genre • MMOs account for few games on Steam, but have high playtime per title • Over half of Steam’s game are Indie, but Indie games have very little playtime per title
- 32. Steam Games by Genre • Sports games have the highest average cost, and MMOs have the lowest (note subscriptions not included) • MMOs and Action games have the best “bang-for-the-buck” in terms of hours of playtime/dollar
Editor's Notes
- Say “I saw this as a problem and decided to come up with a solution”
- Say “I saw this as a problem and decided to come up with a solution”
- Say “I saw this as a problem and decided to come up with a solution”
- Say “I saw this as a problem and decided to come up with a solution”
- Add link to blog
- Bubble plot needs a legend
- Bubble plot needs a legend
- Bubble plot needs a legend
- Bubble plot needs a legend
- Bubble plot needs a legend
- Bubble plot needs a legend
- Bubble plot needs a legend