TRANSLATION METHOD AND TRANSLATION SYSTEM FOR TRANSLATING INPUT EXPRESSION INTO EXPRESSION IN ANOTHER LANGUAGE

• US 20160092437A1
• Filed: 09/09/2015
• Published: 03/31/2016
• Est. Priority Date: 09/26/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Inventors: ENDO, MITSURU, OLIVEIRA, VIVIANE
• Granted Patent: US 9,582,502 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 40/268 Morphological analysis
• CPC Class Codes: G06F 40/45 Example-based machine translation; Alignment
• CPC Class Codes: G06F 40/51 Translation evaluation
• CPC Class Codes: G06F 40/55 Rule-based translation
• CPC Class Codes: G06F 40/58 Use of machine translation, e.g. for multi-lingual retrieval, for server-side translation for client devices or for real-time translation
• CPC Class Codes: G06F 9/454 Multi-language systems; Localisation; Internationalisation

Abstract

A translation system includes translation subsystems by a plurality of translation policies with different translation output tendencies, performs forward translation and reverse translation by a consistent translation policy, and ranks the plurality of translation policies based on a similarity between the reverse translation sentences and the original sentence. As a result, a translation policy that best matches each input object to be translated is selected from the plurality of translation policies for each input sentence and, as a consequence, it is possible to cover a wide range of natures of sentences to be translated.

Claims

1. A translation method comprising:

obtaining an original sentence to be translated;

performing bidirectional translation to obtain a translation sentence corresponding to the original sentence by performing forward translation and obtaining a reverse translation sentence from the translation sentence by performing reverse translation, consistently for each of a plurality of translation policies;

ranking the translation policies based on a degree of similarity between each of the reverse translation sentences by each of the plurality of translation policies and the original sentence; and

displaying the each of translation sentences by each of the plurality of translation policies in a state in which each translation sentences is related to the ranking, wherein

the forward translation and the reverse translation are performed consistently for each translation policy.

2. The translation method according to claim 1, wherein

in the performing bidirectional translation, if the original sentence is written in a first language,

a first translation sentence is obtained by translating the original sentence into a second language by a first translation policy,

a first reverse translation sentence is obtained by performing reverse translation of the first translation sentence into the first language by the first translation policy,

a second translation sentence is obtained by translating the original sentence into the second language by a second translation policy, and

a second reverse translation sentence is obtained by performing reverse translation of the second translation sentence into the first language by the second translation policy.

3. The translation method according to claim 2, wherein

in the ranking,

a first degree of similarity between the original sentence and the first reverse translation sentence is calculated,

a second degree of similarity between the original sentence and the second reverse translation sentence is calculated, and

the first degree of similarity and the second degree of similarity are compared and the first translation sentence and the second translation sentence are ranked in descending order of degree of similarity.

4. The translation method according to claim 3, wherein

in the displaying,

the first translation sentence and the second translation sentence ranked in the ranking are displayed in such a way that a translation sentence in a higher rank is displayed in an upper portion.

5. The translation method according to claim 1, wherein

the degree of similarity is a value obtained by subtracting a number of disparities in units of words between the reverse translation sentence and the original sentence from a number of matches in units of words between the reverse translation sentence and the original sentence.

6. The translation method according to claim 1, wherein

the translation policy is an algorithm reflecting a design guide of machine translation.

7. A translation system comprising:

a processor; and

a recording medium having stored therein instructions which, when executed by the processor, cause the processor to perform operations comprising;

obtaining an original sentence to be translated,

generating, for each of a plurality of translation policies, a translation sentence corresponding to the original sentence by performing forward translation and generates a reverse translation sentence from the translation sentence by performing reverse translation,

ranking the translation policies based on a degree of similarity between the each of reverse translation sentences by each of the plurality of translation policies and the original sentence,

displaying each of the translation sentences by each of the plurality of translation policies on a display in a state in which each translation sentence is related to the ranking, and

wherein in generating, performing the forward translation and the reverse translation consistently for each of translation policies.