My Name is Harrison
This is my giant face
I'm a frontend engineer at airbnb
I'm on the
- Data Collection
- Data Visualization
- Internal Tools
Make decisions based on data.
Make good decisions based on good data.
A good decision is an informed decision.
Good data is reliable data.
And yes sometimes I like to read the words on the slides
A Professor once told me it was lazy to add subtitles to a presentation...
I said it was great for when the audio cuts out
- Collecting Data
- Communicating Data with Decision Makers
- Storage is Cheap
- Log Everything You Can
- Performance & Metrics
with Decision Makers
- Consider Your Audience (anyone)
- Tell a Story
- Build the Tool that Replaces You
A Data Visualization with Words
1820 - 1910
Florence Nightingale was a nurse and statistician.
Crimean War Hospitals (Turkey)
- Lack of Fresh Air & Light
- Lack of Food
- No Sanitation Facilities
- Collected data about conditions
- Collected data on cause of death
More people were dying from preventable causes than on the battlefield.
How do you convince people who have little or no statistical knowledge? (the Queen)
You invent a visualization.
Values not as important
A = number of deaths
Florence realized this later on and had to update her graphs.
Other Important Visualizations
John Snow's Dot Map
Cholera cases in the London epidemic of 1854
Clusters show Broad Street outbreak
Convinced local council to disable pumps
Charles Joseph Minard's Path Diagram
Napoleon's failed march into Russia
Size of army at each position
Cold affected the retreat
Edward Tufte: “the greatest statistical graphic ever“
This is important because the way you communicate your data matters