Artificial Intelligence (AI) unit 1

Don’t speak Italian? You can still be a translator!
If you get a restaurant menu written in both English and Italian, will you be able to figure out what’s the Italian word for “bread”?

If you collect more bilingual documents or have a dictionary, you’ll be able to translate more words into Italian, especially those words to impress people, such as “partially observable, stochastic, continuous, adversarial”.

This is how a machine does translation. It is an example of artificial intelligence.

Yes, this kind of translation is not 100% accurate but it may be right the majority of the time.

What is Artificial Intelligence?
If one can make a decision, that’s smart. If a computer can make a decision, that’s Artificial Intelligence (AI). For example, if a computer based on stock price fluctuation and decides when to trade, it is AI. If a computer based on observation of spam and decides if a newly arrived message is spam, it is AI. Gather information, make a decision, and act.

What is partially observable, stochastic, continuous, adversarial?
You need good info to make a good decision. Information is not always readily available. You met someone at a dance. You observed him at the dance, but not other locations. It’s called “partially observable” contrasting “fully observable.”

You never know who you will meet at a social event. It is referred as “stochastic” contrasting “deterministic”. Say “stochastic” instead of “random” to impress friends.

The dancing hall may be hot, comfortable, or cold. With only finite number of situations, it is called “discrete”. It could be 69.5 degrees or 69.25 degrees. They’re referred as “continuous”.

Both of you want to know each other better. You won’t prevent him from knowing you. In contrast, in a competition, a competitor wants to prevent others know about its winning practices. This is referred to as “benign or adversarial”. Say “adversarial” instead of hostile” to show off your vocabulary.