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In natural language, one can say the same fact in an infinite number of ways. You can rearrange words in places, replace them with synonyms, incline by cases (if we are talking about a language with cases), and so on. The need to determine the similarity of the two phrases arose in solving one small practical problem. I did not use machine learning, I did not use neural networks, but I used simple metrics and collected statistics to calibrate the coefficients.
In natural language, one can say the same fact in an infinite number of ways. You can rearrange words in places, replace them with synonyms, incline by cases (if we are talking about a language with cases), and so on. The need to determine the similarity of the two phrases arose in solving one small practical problem. I did not use machine learning, I did not use neural networks, but I used simple metrics and collected statistics to calibrate the coefficients.