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2014 Pixnet Hackathonh - EXIF Mining
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2014 Pixnet Hackathonh - EXIF Mining
1.
EXIF Mining 張懷倫 /
許正佑 / 曲華榮 / 龔建瑞
2.
EXIF 專門為數位相機的照片設定的,可以記錄數位照片的屬性信息和拍攝數據。
3.
照片分群分析 變數名稱 變數敘述 UploadTime 照片上傳時間 DateTake
照片拍攝時間 Camera 相機型號 Size 照片檔案大小 Aperture 光圈 ExposureTime 快門 FocalLength 焦距 ISOSpeedRatings ISO值 MeteringMode 測光模式 TotalHits 累積總人氣 Uploaded_diff 照片拍攝與上傳間隔時間 資料: 9614張不設分類照片 變數: 採用7個訓練變數做分群 採用11個敘述變數做觀察
4.
分群分析結果 累計總人氣最多為第二群照片: 1.照片上傳日為最近期 2.照片檔案大小最大 3.75%為Apple iPhone/ iPad;
2%為 HTC; 2%為Canon 累計總人氣最少為第四群照片: 1.照片上傳日為最早期 2.照片檔案大小最小 3.照片拍攝與上傳間隔時間最短(平均22天) 4.98%為Apple iPhone/ iPad
5.
Question: 大家照完照片後… • 拍完照後,過多久會把照片上傳? •
使用的相機型號是否有差別? • 應用方向 – 幫助Pixnet更了解使用者的習慣
6.
Photo 拍攝時間 上傳時間 相機型號 Data
7.
Formula
8.
Prototype
9.
Conclusion • 拍照完後上傳速度比: – 平板
> 手機 > 專業相機 • 一半的人(50%) 都在兩天之內會把相片上傳到Pixnet 上 • 玩專業相機的人喜歡一次上傳很多張圖片。 • 建議: – 從圖上可以發現,專業相機和手機類的上傳時間差距很大, 是兩個不同族群。或許Pixnet可以為了手機用戶和專業相機 用戶分別設計適合其模式的上傳功能。
10.
Question: 大家都在那裡拍照? • 早上、下午、晚上,大家的拍照地點是否不 同呢? •
應用方向 – 藉由大家拍照的地點,做出一套根據時間變化的推薦景點系統。
11.
Question: 大家都在那裡拍照? • 在地圖上不同的拍照地點, 提供不同時段的景點推薦
12.
Question: 大家都在那裡拍照? • 在地圖上不同的拍照地點, 提供不同時段的景點正妹推薦
13.
Photo metadata 拍攝時間 緯度 經度 Information extracted from
open data provided by PIXNET 文字敘述影像內容
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