FIELD: computing technology.
SUBSTANCE: group of inventions relates to search engine technologies and can be used for ranking digital documents for a query. A search engine associated with an inverted index is stored on a server. The method includes accessing the inverted index to retrieve query-independent data for a first document-term pair and a second document-term pair, wherein the query-independent data indicates (i) a term-dependent occurrence of the first term in the document and (ii) a term-dependent occurrence of the second term in the document. The method includes generating, using the query-independent data, a query-dependent feature indicating a group occurrence of the first term with the second term in the document. The method includes generating a ranking feature for the document based on at least the first term, the second term and the query-dependent feature, and ranking the document based on at least the ranking feature.
EFFECT: increase in the performance speed.
20 cl, 7 dwg
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