Group: CombinedAbs

The size of the minimum piece of text, including all the words of the request found in the document. Not used now. ((http://wiki.yandex-team.ru/jandekspoisk/kachestvopoiska/obshayAformula/tekushhiekomponenty/ymw Read more))

Buettcher, Clarke and Lushman factor (modified) ((http://wiki.yandex-team.ru/jandekspoisk/kachestvopoiska/obshayAformula/tekushichiekomponenty/bclm more)))))))))

Evaluates the minimum distance between the pairs of words of the request, taking into account the remoteness of the pair from the beginning of the document (Minimal Pair Size with Attenuation). Steles are understood to mean all consistent bigrams of the words of the request. Thus, the number of vapor is equal to the number of words in a request reduced by 1. Accordingly, the factor makes sense for requests consisting of more than one word. (Http://wiki.yandex-team.ru/jandekspoisk/kachestvopoiska/obshayaformula/ Tekushhiekomponenty/MPSA MPSA))

It differs from BCLM in that the weights of all words are considered the same. ((http://wiki.yandex-team.ru/jandekspoisk/kachestvopoiska/obshayAformula/tekushhiekomponenty/bclm2 BCLM2))))))))))))

Text relevant based on the language model, taking into account the absolute position. We go along the text with a window of 20 words, build a language model on each window (that is, the distribution of probabilities in the words of the Russian language) and calculate the probability of generating a request. For removal from the beginning of the document, we finish the model.

Fixed YMWFull. It differs from the previous version only by behavior on 2 -word queries. ((http://wiki.yandex-team.ru/jandekspoisk/kachestvopoiska/obshayAformula/tekushhiekomponenty/ymw Read more))

The factor evaluates as the words of the request is grouped with each other in the text of the document without taking into account their order. ((http://wiki.yandex-team.ru/sergejjkrylov/queryWordCohesionTR Description))

The share of the segments of the request present in the text

Maximum amount weight of the words of the request in the window of 50 words

The proximity of the words of the request to the most difficult word.