Language: | Ukrainian | Russian

As it is visible from the table, the results of search for various search servers both various key words and phrases are completely ambiguous. First of all, it is necessary to note, that is least of results the search system META has shown, that is explained by relative novelty given search server, and also by that it(he) is focused mainly on the Ukrainian resources the Internet, while all other search systems, used by me, contain in the basic reference to the Russian resources.

As to other search systems, used by me, the distinction in quantity(amount) of results is explained, obviously, distinction in algorithms of an estimation of relevance system, used in a search nucleus.

Most of all of results on the majority of key phrases has given search on YANDEXе. It is most powerful search server. The basic distinctive features Yandex.Ru are check of uniqueness of the documents (exception of copies in the different codings), and also key properties of a search nucleus Яndex, namely: the account of morphology of Russian (including search on exact wordform), search in view of distance (including within the limits of the paragraph, exact word collocation), and carefully developed algorithm of an estimation of relevance (conformity of the answer to inquiry), taking into account not only quantity(amount) of words of inquiry found in the text, but also "contrast" of a word (his(its) relative frequency for the given document), distance between words, and rule(situation) of a word in the document

The absolute majority of the references have no for the given research of practical value, as it basically or clause in news, or price-lists on production of the various enterprises. Much to our regret only on pages of our HIGH SCHOOL it was possible to find mentions of works in area gazogenerators.

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