Published on 12, July, 2020
Hi, I've just completed a short course on artificial intelligence. These are some things I learned:
Artificial intelligence is often thought of as scary robots, e.g. Terminator, but AI is used in computer systems to do things like suggest films or books you might like, based on your previous choices. It uses a range of technologies, from simple rule based systems such as " if this is true (or if this is false), then do this" to a complex 'neural net' that is a simplistic model of how the brain works, and can be trained (machine learning)
As well as being used on social media or shopping sites, AI can identify things such as tumour cells in a medical scan or identify galaxies in photographs or from space. Large language models can generate rich interesting text in any language and translate, restructure or re-phrase text. A related field is image generation, where brand new images are generated by the AI.
In Soeul, AI mini robots were used in a pilot scheme to show senior citizens how to use technology such as smart phones, to enable them to better participate in society and help with preventing loneliness.
Youve probably heard of self driving cars. One accident that happened was a self driving car hitting a truck that pulled out in front of it at a junction in the city. This was because the AI had been trained to drive on a highway, not city streets, and the image of a truck it had been given was a view of the back of a truck. When it saw the side of the truck as it pulled out, it thought it was a road sign and so attempted to drive under it. The AI had no perception that the space under the truck was lower than the vehicle it was driving.
There are issues around ethics, inclusion and sustainability. For example, if AI is trained using data that is biased, the AI will acquire that bias. Although it can be used for facial recognition, it can sometimes struggle to determine gender and the darker the skin tone, the less accurate are the results. Training AI uses massive amounts of resources.
What are your thoughts?
And would you be comfortable having an AI robot in your home to help with tasks?
I once went to a presentation about AI for work. One of the presenters used the analogy of the "man down the pub" - someone who, if you asked them a question, would give an absolutely definitive answer, regardless of whether it was right or wrong. That's how they imagined the current state of AI, not that it has intelligence but that it can regurgitate information it has been given (humans can be given inaccurate information too, such as "fake news")