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神戸市ウェブサイト動態
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kwi
February 17, 2018
Research
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神戸市ウェブサイト動態
World Data Viz Challenge 2017 での発表資料です。
http://kobe-barcelona.net/
kwi
February 17, 2018
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Transcript
神戸市ウェブサイト動態 Hiroaki KAWAI World Data Viz Challenge 2017 資料 http://kobe-barcelona.net/
Speaker • 川井 浩陽 – 「生活を、もう少しIT nativeに」 • iCal 形式版
小学校 給食 オープンデータ – 通信会社勤務 – Code for Kobe
WDVC2016(前回) • 「Me, Kobe and Barcelona」@BCN – 人口統計オープンデータを分析 • 「私の街の人口問題」@KOBE
– 人口統計データに加えて、 – 待機児童数を分析 Monthly updated
神戸市ウェブサイト利用規約 • CC-BY compatible since 2017-07 • Started archiving –
Heritrix (Internet Archive) • WARP by 国立国会図書館 – 1 Crawl cycle ~60 GiB in ~2 weeks – Source for time series data • Visualize the outline
全体像 ページ数
ページ数推移 Drill-Down: > 原課表示あり > 神戸市 > 行財政局 > 財政部
> 契約監理課
圧倒的PDF ファイル容量で動きを見る手法も有効 PDF内に情報が詰め込まれがち 1MB 100KB 10KB 10MB 100MB
Monthly updated data 月次更新されていることが わかっている小学校給食データの例 *) Current infra is not
capable of capturing weekly, daily updates
Archive for trend analysis
Wrap-up • CC-BY licensed web site is archivable • Archive
is good for trend analysis • Tons of PDF – Not ready for data analysis – Rich data inside it