At the risk of looking seriously old, here's something found on a paper tape bearing the title "Ian's First Programme" ...
BEGIN INTEGER A,B,C,D,E,F,G,ANS
READ A,B,C,D,E,F,G
ANS:=(A+B+C+D+E+F+G)/7
PRINT ANS
END
Can you identify the language and the computer it ran on?
This new technique to compress the time series data collected by my home automation system seems to be working really well.
Digital Twin are an online representation of a real world object, a copy of its properties in the digital world and a way to send updated and commands to it. In effect I've been making them for years but now they have a trendy name.
Why automated learning is hard for a smart home. The perils of over-fitting, under-fitting and how the general unpredictable nature of life makes it hard to build a system that learns your behavior.
One way to reduce the volume of sensor data is to remove redundant points. In a system with timestamped data recorded on an irregular interval we can achieve this by removing co-linear points.
Another super useful function for handling sensor data and converting to probabilities is the logistic function 1/(1+e^-x). Using this you can easily map values onto a 0.0-1.0 probability range.
In a home automation system we often want to convert a measurement into a probability. The ATAN curve is one of my favorite curves for this as it's easy to map overything onto a 0.0-1.0 range.
Several years ago we did a major remodel. I did all of the finish electrical myself and supervised all of the rough-in electrical. I also put in all of the electrical system and water in our barn. I have opinions ...
I'm testing a T-Mobile Home Internet device as a backup to XFinity and a way to offload half our monthly traffic to avoid the XFinity 1.2TB cap
Stackoverflow is a terrific source of information but can also be infuriating.
Using nodes and links to represent a home and all the devices in it
Building a Xamarin Forms application to control my home automation system
Multicolored LEDs can convey a lot of information in a small space
The diminutive Arduino boards include a powerful transmitter/receiver
A slightly radical idea to eliminate passwords from many of the websites you use just occasionally
A novel approach to adding history to variables in a programming language
Some observations from a meetup in Seattle on graph databases and Neo4j
My talk to the Seattle Quantified Self meetup
Some new features for my home automation using an Android phone
Just thought I should mention that I built a web-like system before the web existed
State machines are useful in many contexts but especially for home automation
Historical note about moving my servers into a datacenter
What is "quality" in terms of a released software product or website?
Here's how I made a bootable USB memory stick for Windows 7
A tip on using LINQ's Select expression with an index
A rant about developers using the same message for different errors
Fixing this error was fairly simple
Expanding URLs would help users decide whether or not to click a link
Just a link to a site I found useful
A novel UI for menus that combines a breadcrumb and a menu in one visual metaphor
Some benchmark performance for Amazon vs a dedicated server
You cannot tack too often when sailing or you get nowhere. Agile is a bit like that.
When your anti-virus software starts stealing your personal data, it's time to remove it!
How to solve a problem encountered with custom validation in ASP.NET
Why disk speed is the most critical aspect for most modern PCs and servers
Monitoring a cable modem using its HTML management interface
Using space-filling curves to optimize caching
A friend died last year, it wasn't unexpected. He left a lot for his friends to cleanup. Maybe these notes can help someone else prepare better.
