Patent ID: 8630839

Claim:
A non-transitory computer-readable recording medium that stores therein a computer program that causes a computer to execute: receiving a bilingual sentence pair including a first-language sentence and a second-language sentence that are translation of each other; first creating a modified first-language sentence by dividing the first-language sentence into a plurality of base phrases including a merging pair of two adjacent phrases within the first-language sentence; second creating another modified first-language sentence by dividing the first-language sentence into a plurality of base phrases including another merging pair of two adjacent phrases within the first-language sentence; computing a first unified evaluated-value of the modified first-language sentence and a second unified evaluated-value of the other modified first-language sentence, the first unified evaluated-value indicating an average value of a matching degree of the base phrases in the modified first-language sentence based on phrases in the second-language sentence and a matching degree of the phrases in the second-language sentence based on the base phrases in the modified first-language sentence, the second unified evaluated-value indicating an average value of a matching degree of the base phrases in the other modified first-language sentence based on the phrases in the second-language sentence and a matching degree of the phrases in the second-language sentence based on the base phrases in the other modified first-language sentence; determining one proper modified first-language sentence based on the first and second unified evaluated-values acquired at the computing, the proper modified first-language sentence being a modified first-language sentence in which the first-language sentence is divided into the base phrases more properly; and outputting a merging pair included in the proper modified first-language sentence as a bilingual phrase pair.