Why is contextual advertising dumb?

Question

contextual advertising

Contextual advertising is sometimes useful. However, much more often she is critically mistaken, offering something that you were interested in on the Internet, but not at all because of the purchase, or you already bought it .. Or you were interested in something completely different (I googled a wiki article about working in physics, and the next month I got hells with an offer to work)

Are smart algorithms and programmers of the best international corporations (Yandex, Google) unable to cope with an elementary task?

Answer 1

And you often look for what you need and poke on advertising.
However Yandex quite itself. After buying underwear, he offers booze, condoms and toys

Answer 2

If contextual advertising were ultra-precise, it would be worth considering whether your thoughts are being followed.

Answer 3

The problem is not in the algorithms of Google and Yandex, advertising is set up by ordinary people - advertising specialists or business owners. It all depends on the settings in the advertising account, if they are incorrect, then the ad will be shown to the wrong people.

Answer 4

Perhaps the advertisers don't care about improving their algorithms in this way, because they already have money. You can improve the "algorithms for displaying ads", but someone is too lazy to do this, or the like. - No need. Maybe the reason is that for someone it is too difficult in combination with other reasons. Maybe it's a little embarrassing to monitor people's thoughts, because some don't like it. Or maybe advertising should be stupid for someone.