Creating Data A Boat Filled With Sauerkraut @lukasvermeer
Lukas Vermeer Experiments at Booking.com @lukasvermeer
Introduction SAUERKRAUT @lukasvermeer
HMS Endeavour Our voyage starts when a ship sails from Plymouth on 26 August 1768. @lukasvermeer
“Provisions loaded at the outset of the voyage included 6,000 pieces of pork and 4,000 of beef, nine tons of bread, five tons of flour, three tons of sauerkraut , one ton of raisins and sundry quantities of cheese, salt, peas, oil, sugar and oatmeal.” - Wikipedia @lukasvermeer
@lukasvermeer
Chapter 1 REVOLUTIONS @lukasvermeer
“Progress in science is not a simple line leading to the truth.” - Thomas Kuhn @lukasvermeer
Aristarchus of Samos c. 310 BC – c. 230 BC @lukasvermeer
“[Aristarchus’] hypotheses are that the fixed stars and the Sun remain unmoved, that the Earth revolves about the Sun on the circumference of a circle, […]” - Archimedes @lukasvermeer
“His fame rests on his heliocentric theory. […] Perhaps ‘theory’ is too strong a word, for his proofs were weak; yet it was a great idea .” - George Pólya @lukasvermeer
Claudius Ptolemy c. 100 AD – c. 170 AD @lukasvermeer
“But it has escaped [heliocentric proponents’] notice in the light of what happens around us in the air that such a notion would seem altogether absurd .” - Claudius Ptolemy @lukasvermeer
“For the earth would always outstrip them in its eastward motion, so that all other bodies would seem to be left behind and to move towards the west.” - Claudius Ptolemy @lukasvermeer
No westward motion. No stellar parallax. Geocentric math works. QED - Claudius Ptolemy @lukasvermeer
No observed westward motion. No observed stellar parallax. Geocentric math works to explain what we have observed. GED - Claudius Ptolemy @lukasvermeer
Nicolaus Copernicus 1473 – 1543 @lukasvermeer
Dē RevolutionibusOrbiumCoelestium Copernicus's vision of the universe, published in 1543, the year of his death, though he had formulated the theory several decades earlier. @lukasvermeer
“ These hypotheses need not be true nor even probable. On the contrary, if they provide a calculus consistent with the observations, that alone is enough . ” - Andreas Osiander @lukasvermeer
Galileo Galilei 1564 – 1642 @lukasvermeer
“The real breakthrough that ultimately led to the acceptance of Copernicus’ theory was due to Galileo, but was actually a technological rather than a conceptual breakthrough.” - Michael Fowler @lukasvermeer
Galileo did not invent the idea. He built a better telescope. @lukasvermeer
Galileo first observed the moons of Jupiter This observation upset the notion that all celestial bodies revolve around the Earth. Galileo published a full description in March 1610. @lukasvermeer
Multiple models could probably explain the data you already have. Determining which one is closer to the truth requires a directed effort to collect new data (to the contrary). @lukasvermeer
@lukasvermeer
@lukasvermeer
Data You Data You Have Need @lukasvermeer
Sauerkraut Data You Data You Have Need Science @lukasvermeer
Chapter 2 TRANSIT @lukasvermeer
“On the sizes and distances” Aristarchus's 3rd-century BC calculations on the relative sizes of (from left) the Sun, Earth and Moon, from a 10th-century AD Greek copy. @lukasvermeer
Distance to the sun 380 - 1520 Earth Radii Aristarchus (3 rd century BC) @lukasvermeer
Diagram from Edmund Halley's 1716 paper Addressed to the Royal Society showing how the Venus transit could be used to calculate the distance between the Earth and the Sun. @lukasvermeer
Route of the first voyage of James Cook An expedition to the south Pacific Ocean aboard HMS Endeavour, from 1768 to 1771. It was the first of three Pacific voyages of which Cook was the commander. @lukasvermeer
Three years of travel. For two timestamps. @lukasvermeer
“Not a Clowd was to be seen the Whole day and the Air was perfectly clear, so that we had every advantage we could desire in Observing the whole of the passage of the Planet Venus over the Suns disk.” - James Cook @lukasvermeer
The "black drop effect" As recorded during the 1769 transit by James Cook. @lukasvermeer
Right place, right time, right idea. Insufficiently accurate telescope. @lukasvermeer
Distance to the sun 24 000 Earth Radii Jérôme Lalande (1771) @lukasvermeer
Science is limited by data. Data is limited by engineering. @lukasvermeer
“In the absence of the engineering, you do not have the data. You just hit a limit. You can be real smart within the context of the limit of the data you have, but unless you have a way to get more data , you can’t make progress.” - Elon Musk @lukasvermeer
Data You Data You Have Need @lukasvermeer
Data You COULD CREATE Data You Data You Have Need @lukasvermeer
Chapter 3 TRANSMUTATION @lukasvermeer
“Data is just like crude. It’s valuable, but if unrefined it cannot really be used. It has to be changed into gas, plastic, chemicals, etc to create a valuable entity that drives profitable activity; so must data be broken down, analyzed for it to have value.” - Michael Palmer @lukasvermeer
“The philosopher's stone is a legendary alchemical substance capable of turning base metals such as mercury into gold or silver.” - Wikipedia @lukasvermeer
Data Science. versus Data Alchemy. @lukasvermeer
Kaggle.com “Your home for data science”. @lukasvermeer
Something good, something bad Hotel reviews on Booking.com. @lukasvermeer
Sentiment Analysis Excerpt from “Entity Based Sentiment Analysis on Twitter” by Siddharth Batra and Deepak Rao (Stanford University). @lukasvermeer
Kaggle is to real-life machine learning as chess is to war Intellectually challenging and great mental exercise, but YOU DON'T KNOW, MAN! YOU WEREN'T THERE! @lukasvermeer
Sentiment Analysis At Booking.com, we solve the sentiment analysis challenge at data collection time. @lukasvermeer
Data You COULD CREATE Data You Data You Have Need @lukasvermeer
Data You COULD CREATE Data You Data You Have Need Delete or archive? @lukasvermeer
Data You COULD CREATE Keep, or recreate? Data You Data You Have Need @lukasvermeer
Data You COULD CREATE Data You Data You Have Need Proxies? @lukasvermeer
@lukasvermeer
@lukasvermeer
@lukasvermeer
@lukasvermeer
@lukasvermeer
Deciding which data to collect, and how, is a fundamental step in the scientific method. Limited both by available theories and engineering. @lukasvermeer
Some of us are philosophers. Some of us build telescopes. @lukasvermeer
“Judge a man by his questions rather than by his answers .” - Voltaire @lukasvermeer
Appendix A EXPERIMENTING WITH SCURVY @lukasvermeer
Appendix B COOK’S SECRET SECOND OBJECTIVE @lukasvermeer
Terra Australis Nondum Cognita 1570 map by Abraham Ortelius depicting a large continent on the bottom of the map and also an Arctic continent. @lukasvermeer
Route of the first voyage of James Cook An expedition to the south Pacific Ocean aboard HMS Endeavour, from 1768 to 1771. It was the first of three Pacific voyages of which Cook was the commander. @lukasvermeer
A new map of the world With Captain Cook's tracks, his discoveries and those of the other circumnavigators. Published in 1800 by W. Palmer. @lukasvermeer
“There is no probability, that any other detached body of land, of nearly equal extent, will ever be found in a more southern latitude” - Matthew Flinders (1814) @lukasvermeer
Recommend
More recommend
