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Data in A New Media
Pili Hu
CTO, Initium Media
June 7, 2016
Initium Media
A New Media/ An Internet-Native Media
https://theinitium.com/misc/about/
A Glimpse into the NewsRoom
A Glimpse into the Geek Corner
Sample: Multi-regional Collaborative Reporting
抗戰70週年,我們第一次把國軍、共軍、台籍日軍、華籍英軍老兵請到了一起⋯⋯
《六個人的一九四五》
Sample: In-depth Cross-continental Investigation
我們花了3個月,橫跨4個國家,做了對中國和國際關係都極重要,但華語媒體無人
可做的獨家調查:維吾爾人外逃伊斯蘭國的真實紀錄。
《獨家:維吾爾人外逃伊斯蘭國》
Sample: Beyond Politics
在互不相讓的政治事件與衝突中,我們關注大敘述底下的「人」。
《佔領之後,運動創傷專題》
《程翔、彭泓基:四十載同窗,為母校一朝割席》
Sample: Infographics
我們大量使用原創且適合手機閱讀的信息圖表,用infographics講故事。
Sample: Macau Gambling Industry
我們把一個cover story型深度專題,做成了圖文影音互動的手機頁面。
《澳門賭業大變奏》
Sample: Digital Presentation
我們把一篇四千字的《廢青演變史》文章唱成了Rap,在本地收穫好評無數。
《香港廢青進化論》
Technology
iOS/ Android/ Website
20160607 wids 2016 pub
Data-Driven Journalism
Beyond Interview: Story via Data Mining
Beyond Texts: Visualisation to Uncover Trends
Beyond Graphics: Auralization
Beyond One-way Communication: News Game
9道題測測你會投票給
哪位台灣總統候選人
香港經濟轉捩點:當「積極不干
預」撞上「適度有為」
Salary 360
(人口普查開放數據利用)
Beyond News:
Data at Core + Various Derivatives
Two Case Studies
Sample project & Challenges
The Workflow
Two cases to be shared today
HK Disco
HK Legco
HK District Council Election
Hong Kong District Council (Disco)
Final output:
● Power of each Camp:
○ https://theinitium.com/project/20151012-hk-district-council-elections/
● Power of major parties:
○ https://theinitium.com/project/20151019-hk-district-council-elections-2/
● Guide for 2015 election:
○ https://theinitium.com/project/20151029-hk-district-council-elections-
3/desktop.html
Meet the data
Data:
● From 1999 to 2015
● # of Candidates: 4392
○ Name, occupation,
party, camp, votes
● # of Constituencies: 2039
○ Total votes, voting rate,
count of voters,
population
Methodology:
● Automatic
○ Scraping
● Semi-automatic:
○ Copy-and-paste a few table from the website
○ Data cleaning by human
● Manual input from books
○ Labour intensive
● Investigation
Meet the sources
Manpower overview
Metric Value
# of unique participants 8
Data collection/ cleaning 720 man-hours (3 months)
Data validation 24 man-hours (3 days)
Data analysis 50 man-hours (6 days)
Project span 5 months
Manpower overview of the large data collection campaign
16 Years HK District Council Election
Challenge: Hard to Collect
Database open sourced:
http://initiumlab.com/#database
1999 2003 2007 2011 2015
個人信息
(年齡)
手動抄書
(3)
手動抄書
(3)
手動抄書
(3)
手動抄書
(3)
自動抓取睇嘢
(0.5)
個人信息
(性別、職業)
手動抄書
(6)
手動抄書
(6)
手動抄書
(6)
區選網站/手動
(2)
區選網站/自動
(1)
政黨派別
(政黨)
手動抄書
(3)
手動抄書
(3)
手動抄書
(3)
區選網站/手動
(1)
區選網站/自動
(0.5)
政黨派別
(泛/建/其他)
起底+標註
(130)
起底+標註
(130)
起底+標註
(130)
起底+標註
(130)
起底+標註
(130)
選區信息
(居民數、選民數、
投票率)
區選網站/手動
(2.1)
區選網站/手動
(2.1)
區選網站/手動
(2.1)
區選網站/手動
(2.1)
區選網站/自動
(1.1)
選舉結果
(得票率)
手動抄書
(3)
手動抄書
(3)
手動抄書
(3)
手動抄書
(3)
missing
(0)
Research/ investigation consumes significant more time
Online accessible/ (semi-) formatted data saves time
Importance of open data and knowledge sharing
Challenge: Efficiency & Quality
Misconception:
“Manual input is only a problem of labour; not a problem of science”
- How to use semi-automatic tools to improve efficiency?
- How to track data pipeline/ dependency graph?
- How many points should you sample for data validation?
- How to maximize the performance of a group of data collectors?
- In terms of project span?
- In terms of through-put?
- How to setup incentive mechanism to ensure quality?
- …
All those are active research directions.
HK Legislative Council Voting
SOPA 2016 Excellence Award Winner
More: https://theinitium.com/article/20160615-sopa-awards-2016/
Hong Kong Legislative Council (Legco)
Hong Kong Legislative Council
● Current term: 17/10/2012 ~ 18/06/2015
● 70 members
● 12 government departments
● 2921 motions
Structured data set
Focus on mining
Video: Legco Voting on Youtube (English)
https://www.youtube.com/watch?v=0evK3PtLaUo
Video: Legco Voting on Youtube (Cantonese)
https://www.youtube.com/watch?v=KYa-ygjqaV4
20160607 wids 2016 pub
Other output of Legco Analysis project
● Chinese report + Cantonese animation:
https://theinitium.com/article/20150812-hongkong-legcoanalysis/
● Interactive Web:
http://legco.initiumlab.com
● English animation: https://www.youtube.com/watch?
v=CExoTvKuXSw
Two cases to be shared today
HK Disco
HK Legco
The Data Analysis Iteration
Core Tech: Dimensionality Reduction (PCA)
Challenge: Insights? Impact? Value?
“Value”: High
Difficulty: Low
“Value”: Med
Difficulty: Med
“Value”: Low
Difficulty: High
Challenge: “Value” of Data
Unique source
(e.g. Disco -- Time Series)
Interesting
data point
(e.g. Legco -- Starry Lee against
herself)
Good Interpretation/
visualisation
(e.g. Legco -- Heatmap)
Technically Deep Analysis
(e.g. Legco -- Member ordering)
Data Empowering Production
Challenge: Data Pipelining
● Integration:
○ Google Analytics
○ UMeng
○ Fabric/ Crashlytics
○ Database
○ Server log
○ … Many third party stats
● Processing:
○ Extraction
○ Transformation
○ Aggregation
○ Visualisation
● Presentation:
○ Visualisation
○ Formating
○ Articulation
A combination of
manual, semi-auto
and auto integration
Lot room for improvement
Usually deferred until must
Only useful after successful
articulation of your findings
https://whatsthebigdata.com/2016/05/01/data-scientists-spend-most-of-their-time-cleaning-data/
Challenge: Environment
● Libraries/ Modules
● Processing Power
● Quick Deployment/ Interactive Exploration
● Data-urchin:
○ https://github.com/initiumlab/data-urchin
○ Python 3
○ Selected common Libs for data
○ BCPs
○ Docker Compose
○ Samples (still building)
○ Immature and ideas are wanted
Life is short
Enjoy Initium...
Enjoy Living
https://www.youtube.com/watch?v=WEkFyLzj6yg
Enjoy Reading
https://www.youtube.com/watch?v=zFeSh2W1_C8
Enjoy Hacking
https://www.youtube.com/watch?v=mZF7_dyuP6Q
Enjoy Sharing
More…
http://initiumlab.com/events/
Q/A
Initium?
New Media?
Data?
Lab?
We are looking for talents.
Check Openings:
join.init.im
Send CV to:
join@init.im

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