MACHINE TRANSLATION SYSTEM

A machine translation system for automatically effecting translation from Japanese the source language into another or target language. Conventional translation systems entail problems, e.g., the reduction in processing efficiency owing to the need for an additional step such as pre-editing prior to translation. In the machine translation system of the present invention, the main process step for mechanical translation, the syntactic analysis step, is based on the determination of whether or not any modification relationship can be established for each pair of adjacent words by extracting a rule corresponding to that combination from a part of speech matrix table in which analysis rules of the source language are described with respect to the parts of speech of the corresponding pair of words to modifying words and head words; successively stacking each of these word combinations for which a modification relationship has been established for use as a analysis tree element; and displaying an analysis tree corresponding to the original sentence in the source language from the stacked analysis tree segments. The number of syntactic rules is thereby limited to the square of the number of individual parts of speech, the need for pre-editing is eliminated and Japanese sentences in every style can be translated with improved efficiency.