Sorting through the stuff from my attic in the UK I came across a manual
written in 1985. Here are some verbatin quotes from the manual:
... allows us to gain instant access to information which may actually
be stored on the other side of the world.
It allows you to prepare 'pages' and to connect these, one with
another, in any way you like.
... you don't have to be a computer expert to set up your own
information system.
You can link one system to another, so that you can, in effect, create
one large system.
You can set up a massive information system accessible from anywhere
on the network!
It has an extremely powerful facility called an 'execution frame' ...
which allows you to 'call up' a computer program ...
This came from a manual that I wrote in 1985 for a program called
BEEBTel which was a networked, page-based viewer and editor for linked
pages and executable scripts. Of course TimBL's version was somewhat
more successful, despite coming four years later :)
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 ...
