The way to change the world…
... is getting people to care !
Educate-Inspire-Change
Empty Suit
Definition: An amateur who's been given the power to set the goals & objectives for professionals to follow, and thinks of himself as a strong leader.Ethics
"Veritas vos liberabit"
"It's better to build something 100 people love, than something that 1M people kind-of-like" -- Brian Chesky
"Rättvisa handlar inte om lika utfall, utan om lika spelregler" -- Alice Teodorescu
“The mediocre teacher tells. The good teacher explains. The superior teacher demonstrates. The great teacher inspires.” ― William Arthur Ward
When the facts change, I change my mind. What do you do, sir?" -- John Maynard Keynes
""Don't attribute to stupidity what can be adequately explained by a contract." -- Anonymous
"Without deviations from the norm, progress is not possible" -- Frank Zappa
"I must study politics and war that my sons may have liberty to study mathematics and philosophy and they in turn must study those subjects so that their children can study painting, poetry, music, architecture, statuary, tapestry, and porcelain." -- John Adams, Americas II president
"In a time of universal deceit - telling the truth is a revolutionary act." -- George Orwell
"The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke
"Being normal is being merely average" -- Shawn Achor
“It is difficult to get a man to understand something, when his salary depends on his not understanding it.” -- Upton Sinclair
"I do not agree with what you have to say, but I'll defend to the death your right to say it." -- VoltaireSystems view
"Our organization was designed for a problem that no longer existed; we had brought an industrial age force to an information-age conflict." --Stan McChrystal- A/B Testing
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- Fast Fourier Transforms with Python - the noise and the signal
- More fun with Python: Navigational tricks - AIS NMEA encoding/decoding
- The blindfolded archer - Cauchy distribution: when randomness gets wild
- Parsing NMEA 0183 sentences in Python
- Python - plotting with different scales
- Image processing with Python, Numpy & Scipy - image convolution
- New Cxx level officer needed : CVO - Chief Value Officer
- Making opencv work on WIndows7 Cygwin 64-bit : 7 hour's of painful trial & error
- Wind,Temperature,Air Pressure statistics
- Linear Regression - comparing Bayesian with Frequentist approach
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Tag Archives: programming
Capturing NMEA sentences over WiFi using Python
In order to figure out how the NMEA-WiFi Gateway deals with clients, e.g. if it expects any “handshake” or any other communication setup protocol, I decided to write a simulator mimicing the gateway, and then using iRegatta 2 from Zifago … Continue reading
Posted in Data Analytics, Maritime Technology, Nautical Information Systems, NMEA, Numpy, performance, Python, Simulation, TCPIP
Tagged Communication, Data Analysis, iRegatta2, Network, NMEA, Numpy, performance, programming, Python, Simulation, sports, TCP/IP, Technology
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Making a living as a Professional Scientific Gambler using Bayesian Inference…?
As my readers know, over the past few weeks I’ve been conducting an experiment: Applying scientific betting on the just finished Ice Hockey World Championships. By “scientific”, I’m referring to the exclusive use of statistical and mathematical models, simulation, and … Continue reading
Posted in Bayes, Data Analytics, Data Driven Management, Finance, Gambling, HOCKEY-2018, Math, Numpy, Probability, PYMC, Python, Simulation, Statistics
Tagged Bayes, Gambling, HOCKEY-2018, Probability, programming, Python, Science, Simulation, sports, Statistics
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Stay smart, write code
Interesting article on the mental benefits of writing code: https://www.makeuseof.com/tag/how-programming-affects-brain/
Hypothesis testing in Python – alpha,beta,Effect & Power
Suppose you’d like to conduct an experiment determining whether a new drug is effective to combat some disease. Let’s say that you have a control group and a test group of test subjects, where the test group receives your drug … Continue reading
Posted in Data Driven Management, Probability, Python, Simulation, Statistics
Tagged Math, Numpy, programming, Python, Scipy, Simulation, Statistics
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Statistics – lies, damn lies,part II: “Cancer rates in your county are more than factor 18 above national average!”
My previous post, on how statistics can, if not carefully presented and analyzed, give misleading conclusions can be further illustrated by a variant of the problem presented in that previous post: in the previous simulation, the overall population of 1.000.000 … Continue reading
Posted in Data Analytics, Data Driven Management, Math, Numpy, Probability, Simulation, Statistics
Tagged Math, Numpy, programming, Python, Simulation, Statistics
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Confidence Intervals in Python
Suppose you are interested in finding out the mean weight of all Sumo wrestlers in Japan. Or the average gas consuption of Korean made automobiles… Why…? No idea, but that sort of statistics might be of interest, for someone, at … Continue reading
Posted in Big Data, development, Math, Numpy, Probability, Python, Simulation, Statistics
Tagged Confidence Interval, Margin of Error, Math, Normal Distribution, Numpy, programming, Python, Simulation, software, Statistics
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Wind,Temperature,Air Pressure statistics
The above graphs show statistics from SMHI, the swedish meteorological and hydrographical institute, on air pressure, temperature and wind speed. For each categrory, (pressure,temp,wind speed) there are two graphs: the first a frequency chart, the second a Q-Q-chart, showing the … Continue reading
Posted in development, Non Linear Dynamic Systems, Probability, Python, Statistics
Tagged Matplotlib, Numpy, Pandas, Probability, programming, Python, Statistics
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Wind Speed Distribution – is it Normal…?
As a sailor, I’ve become obsessed by wind. Trying to understand its behavior has kept me busy for decades, and still, I can’t claim I fully understand wind behavior. Anyways, one of the things I’ve wondered is whether wind is … Continue reading
Posted in Data Analytics, development, Nautical Information Systems, Probability, Python, software, Statistics
Tagged Data Analysis, Matplotlib, Numpy, Pandas, Probability, programming, Python, Statistics
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Improving Python performance by factor of 100
I’m doing a bit of Machine Learning on my spare time. A neural network that analyzes images. Anyways, since I don’t have zillions of computing power, any decent amount of learning data takes hours and days to process thru my … Continue reading
