Are there any methods for determining the positivity of the news?

Question

Algorithms

I am looking for methods by which you can say that the news is positive or negative. Are there such algorithms? Only neural networks or something like a large dictionary of characteristics come to mind, according to which you can check what is happening.

Answer 1

habrahabr.ru/post/263171
habrahabr.ru/post/197890

Answer 2

Unlikely. I was looking for something similar some time ago.
The task is further complicated by the fact that the very concept of negative / positive is vague and subjective, and the fact that is reported in the news can have many consequences, often unpredictable.
Even banal news that has a numerical representation is sometimes difficult to attribute to positive or negative. Let's just say the news about the change in the exchange rate of the ruble - is it negative or positive? Let's say the ruble fell - that's bad, but if you bought a couple of thousand dollars yesterday - that's good, but if you had 20 thousand rubles worth, it's bad, but it's good for importers, but it's bad for the population, but if it fell as a result of a rate cut - good. Come and see if it's good or bad.
You might think that there is still unambiguously good or bad news. Here is the news about the number of victims as a result of a man-made disaster - is this negative news?
For example: "130 people died as a result of an accident at mine N ..." is certainly negative, but "... and not 200 as previously reported - 70 miners managed to be pulled out of the rubble alive as a result of rescue operations."
Or quite simple - "The search team managed to find flight 2039 recorders" - this is negative news or positive.
Apparently, only a person, and even then with a big stretch, can appreciate the news.
I would refuse a simple assessment of negativity / positivity as such.
I think it would be good to be able to separate news and context. And to define news as creating a new context, and news in the context of earlier ones.
Let's go back to the unfortunate passengers of Flight 2039 - the discovery of black boxes is positive news, but it is in the context of negative news about the plane crash.
The news about the plane crash certainly creates its own new context and is negative out of context.
I have no idea how to determine this automatically.
For good, we need some source of formalized news. How the news outlets didn't think of this in 2015, I don't understand, to be honest.
As far as I know none provide any metadata for news.

Answer 3

Нет. И быть не может.

Answer 4

https://ru.wikipedia.org/wiki/%D0%97%D0%B0%D0%B4%D...