Disclosed is a method for extracting and connecting undefined objects between cross-languages based on a link structure. Embodiments of the present invention comprise the steps of: receiving a first sentence formed of a first language and a second sentence formed of a second language and processing the first and second sentences via an estimated crosslink using object names defined in databases composed of various languages; extracting candidates of undefined object names based on the name of a crosslinking object for connecting the first and second sentences via an estimated crosslink; determining whether or not each of the undefined object names included in the candidates has already been registered in the databases; calculating weights on the basis of a distance from the name of the crosslinking object for the undefined object names not registered in the databases; and connecting the undefined object name of the selected first language to the defined object name of the second language on the basis of the calculated weights.
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