A partial parser with heuristics reducing the number of false chunks in the russian clause

The problem of partial parsing is considered in this paper. New heuristics are proposed to reduce the quantity of chunks falsely exposed at the first step of analysis. A very large influence is rendered by the phenomena of homonymy and polysemy on detection of chunks in russian. Falsely exposed chunks are treated as ones which were found out by a partial parser, but are not actually correct. The method of search of chunks with the use of these heuristics got the name “Right-chunk 4”. The formal task statement is carried out. Computer realization of method of search of chunks is executed as software “Chunk-creator 4”. The estimation of quality is conducted.