Predicting Cancel Users in Offline Events
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Predicting Cancel Users in Offline Events @y_benjo http://d.hatena.ne.jp/repose/
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Transcript of Predicting Cancel Users in Offline Events
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Predicting Cancel Usersin Offline Events
@y_benjohttp://d.hatena.ne.jp/repose/
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Today’s LT: MLMachine Learning
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Offline EventsMeetup
User ConfYaki-ton
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Problem
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Cancel Users
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概要
• ファッキンドタキャン野郎を予測したい
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Solve:Predict #Cancel
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Data
• Source: ATND Beta (atnd.org/events/)
• 17,343 Events (ignore outliers)
• 99,911 Users
• Model: Support Vector Regression
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Results
0
3
6
9
12
15
Average Title Title + Body
Mean Square Error
Better
11.4383
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Features
word scorehbstudy 1.475bpstudy 1.174増員 1.062
appbank 0.7711981 0.709
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Future work
• Why bad ?
• Output minus #cancel
• Too simple: Use Metadata(location, time, similar events ...)
• Another approach: User based model
• Make Blacklist