How to represent words in vector form?

Question

Neural networks

I know that the word2vec model is used for such tasks, well, as I understand it, we need to feed texts to this model, and it creates a dictionary of words and vectors for these words. I already have a dictionary myself, that is, it’s not tedious for me to single them out from the texts. I need to build the vectors of these words in order to use them for the classification task in the future, i.e. the input will be text, and the output is tedious to determine whether this text belongs to a specific topic

Answer 1

The task you are solving is called topic modeling - www.machinelearning.ru/wiki/index.php?title=%D0%A2...
Information about vector representations of words - https://m.habrahabr.ru/company/ods/ blog/329410/