Translation device

1 . A translation device that translates an original sentence in units of chunks which are processing units, the translation device comprising:

processing circuitry configured to

receive an utterance of a user and perform speech recognition on the utterance to obtain the original sentence that is to be translated in the units of chunks;

determine a translation range for translating a first chunk to be translated;

translate the translation range in real-time; and

output a translation result to an output device that is one of a display or speaker,

wherein the processing circuitry adds, to the translation range, the first chunk and a second chunk that includes a verb corresponding to a word included in the first chunk and that is closer to a beginning of the original sentence than the first chunk when no verb is included in the first chunk,

wherein when the translation range includes a chunk different from the first chunk, the processing circuitry specifies a redundant word that is not included in the translation result from among words included in the translation range, and translates the translation range so as not to include a translation result of the redundant word,

wherein the processing circuitry includes an encoder-decoder translation model with an attention mechanism, and

wherein the processing circuitry resets an attention value assigned to the redundant word to 0.

2 . The translation device according to claim 1 , wherein when a verb is included in the first chunk, the processing circuitry adds the first chunk to the translation range.

3 . The translation device according to claim 2 , wherein when no subject is included in the translation range, the processing circuitry further adds, to the translation range, a third chunk that includes a subject corresponding to the translation range and that is closer to the beginning original sentence than the first chunk.

4 . The translation device according to claim 1 , wherein when no subject is included in the translation range, the processing circuitry further adds, to the translation range, a third chunk that includes a subject corresponding to the translation range and that is closer to the beginning of the original sentence than the first chunk.

5 . The translation device according to claim 1 , wherein the processing circuitry specifies, as the redundant word, a word closer to the beginning of the original sentence than the verb from among words included in the translation range.

6 . The translation device according to claim 1 , wherein the processing circuitry adjusts attention values so that a sum of the attention values of target words that are words other than the redundant word among words included in the translation range becomes 1.

7 . The translation device according to claim 6 , wherein the processing circuitry equally distributes the attention value assigned to the redundant word to the attention values of the target words.

8 . The translation device according to claim 6 , wherein the processing circuitry distributes the attention value assigned to the redundant word in proportion to a ratio of the attention values of the target words.

9 . A method, implemented by processing circuitry of a translation device that translates an original sentence in units of chunks which are processing units, the method comprising:

receiving an utterance of a user and performing speech recognition on the utterance to obtain the original sentence that is to be translated in the units of chunks;

determining a translation range for translating a first chunk to be translated;

translating the translation range in real-time; and

outputting a translation result to an output device that is one of a display or speaker,

wherein the method includes adding, to the translation range, the first chunk and a second chunk that includes a verb corresponding to a word included in the first chunk and that is closer to a beginning of the original sentence than the first chunk when no verb is included in the first chunk,

wherein in response to the translation range including a chunk different from the first chunk, the method includes specifying a redundant word that is not included in the translation result from among words included in the translation range, and translating the translation range so as not to include a translation result of the redundant word,

wherein the processing circuitry includes an encoder-decoder translation model with an attention mechanism, and

wherein the method includes resetting an attention value assigned to the redundant word to 0.