tungwaiyip.info

home

about me

links

Blog

< April 2015 >
SuMoTuWeThFrSa
    1 2 3 4
5 6 7 8 91011
12131415161718
19202122232425
2627282930  

past articles »

Click for San Francisco, California Forecast

San Francisco, USA

 

Popularization of Mapping

Reading Sunday's newspaper, I have found this map. What does it try to say? It turns out this is a full page ads for a windows replacement company. They are telling us that 13,011 Bay Area homeowners have chosen to use them to replace their windows. Online mapping has come a long way since they are available to the public some 10 years ago. This company could have just said they have many customers all over Bay Area in nearly every city. Instead plotting them as dots on a map looks lot more impressive. Now this becomes a Wow! rather than yet another day in business.

Windows Ads

The first time people put their data on a map, it looks as if they have discovered some hidden pattern. Some time ago someone has created a map to explore the relation between tech shuttle stops and the opening of restaurants and cafes. He has a theory about the "Clusters of Affluence" and the newspaper covered the story. Unconvinced, I pulled some unrelated data like crime location and plotting another map overlaying violent crime and tech bus stop. It just look much the same as the restaurant map.

Tech Bus and Crime

My explanation is these maps are simply showing a pre-existing population pattern, not necessary a discovery of some unknown relation. Many dots on the map may make it looks like a Wow! But it is simply yet another day in business.

2015.04.19 comments

 

 

blog comments powered by Disqus

past articles »

 

BBC News

 

Sri Lanka attacks: More than 200 killed as churches and hotels targeted (21 Apr 2019)

 

Ukraine election: Comedian Zelensky 'wins presidency by landslide' (21 Apr 2019)

 

Turkish opposition leader attacked at soldier’s funeral (21 Apr 2019)

 

Agent Orange: US to clean up toxic Vietnam War air base (20 Apr 2019)

 

Sudan crisis: Protesters gather for announcement of civilian council (21 Apr 2019)

 

SpaceX capsule suffers 'anomaly' during tests in Florida (21 Apr 2019)

 

Yellow vest protests: Paris police fire tear gas at demonstrators (20 Apr 2019)

 

Columbine survivors mark twentieth anniversary of massacre (21 Apr 2019)

 

Amir Khan beaten by Terence Crawford after low blow (21 Apr 2019)

 

Millions using 123456 as password, security study finds (20 Apr 2019)

more »

 

SF Gate

 

Smart doorbells to watch over your front stoop (21 Apr 2019)

 

Alibaba head’s remarks spark debate over China working hours (21 Apr 2019)

 

New CEO Corie Barry to take top job at Best Buy after 2 decades (21 Apr 2019)

 

One month, 500,000 face scans: How China is using AI to profile a minority (21 Apr 2019)

 

Lehman Bros., a family saga, as viewed by some who lived it (19 Apr 2019)

 

Checking on Social Security estimates is a good idea, but many people don’t do it (19 Apr 2019)

more »


Site feed Updated: 2019-Apr-21 12:00