Abstract: According to an embodiment, a dialogue system includes a satisfaction estimator, a dialogue state estimator, and a behavior determiner. The satisfaction estimator estimates a satisfaction of a user based on a speech input from the user. The dialogue state estimator estimates a dialogue state with the user based on the speech input from the user and the estimated satisfaction of the user. The behavior determiner determines a behavior towards the user based on the estimated dialogue state.

Abstract: An interactive control system according to an embodiment includes one or more hardware processors configured to function as a detection unit, a conversion unit, first and second estimation units, and an attribute determination unit. The detection unit detects an input keyword from input information. The conversion unit converts the input information into information including the input keyword and the input-keyword-excluded context information. The first estimation unit estimates, from the context information, at least a first estimate information piece in which the input keyword's first attribute is associated with a first likelihood of the first attribute. The second estimation unit estimates, from the input keyword, at least a second estimate information piece in which the input keyword's second attribute is associated with a second likelihood of the second attribute. The attribute determination unit determines the input keyword's attribute based on the first and second estimate information.

Abstract: According to one embodiment, a dialog system includes a processor. When a first sentence including one or more words is input by a user, the processor sets at least a part of the one or more words as a first query keyword. The processor selects, from a question-answer table including question-answer pairs, one or more of the question-answer pairs including the first query keyword. Each question-answer pair includes a question and an answer to the question. When a number of the selected question-answer pairs is 1, the processor outputs a first response indicating the answer. When the number is not less than a first threshold, the processor outputs a second response including first and second question keywords. The first question keyword is extracted from question keywords included in one of the pairs. The second question keyword is extracted from other question keywords included in another one of the pairs.

Abstract: According to one embodiment, a display control system includes a processor. The processor is capable of displaying a second sentence and at least a part of a first question-answer pair when accepting a first sentence including a first query keyword. The first sentence is input by a user. The first question-answer pair includes a first question and a first answer to the first question. The first question includes the first query keyword. The second sentence includes a first question keyword included in the first question. The processor is capable of displaying a word other than the first query keyword and the first question keyword in a first form, the first query keyword in a second form different from the first form, and the first question keyword in a third form different from the first form and the second form.

Abstract: According to one embodiment, an interactive system includes following units. The knowledge reference unit refers to a question-answering knowledge based on a result of analyzing an input sentence to acquire a candidate for an answer to the input sentence. The unknown keyword detection unit detects, from the input sentence, an unknown keyword. The related keyword estimation unit acquires, in response to the detection of the unknown keyword, one or more candidates for a related keyword having a meaning close to the unknown keyword from predetermined keywords. The response generation unit generates a response to the input sentence based on the one or more candidates for the related keyword when the unknown keyword is detected.

Abstract: According to an embodiment, a verification system includes a storage controller, first and second receivers, a comparator, a response constructor, a response generator, and an output controller. The storage controller stores, in a storage, first response data and first situation data associated with the first response data. The first receiver receives second response data. The comparator determines a similarity between second situation data indicating a second context for using the second response data and the first situation data. The response constructor constructs response content information comprising the second response data and the first response data associated with the first situation data having the similarity equal to or greater than a threshold. The second receiver receives speech data. The response generator generates a response sentence corresponding to the speech data using the response content information. The output controller outputs for display one or more response sentences.

Abstract: According to one embodiment, a support system is for adding a new slot parameter for use in a dialogue system. The support system includes an acquiring unit and a first processing unit. The acquiring unit is configured to acquire a new slot parameter to be added to the dialogue system. The first processing unit is configured to transmit first information that includes the new slot parameter to an operator of the dialogue system, based on a first evaluation value for selecting the new slot parameter.

Abstract: According to one embodiment, a dialog system includes an acquirer and a processor. The acquirer acquires a first sentence. The processor refers to a first weighting amount based on a first feature and a first weight. The first feature is of a first dialog state and relates to a first slot. The first weight pertains to the first sentence. The processor refers to a second weighting amount based on a first intention amount and a second weight. The first intention amount is of a first intention and relates to the first slot. The first intention is included in the first sentence. The second weight pertains to the first sentence and is different from the first weight. The processor outputs a second feature using the first and second weighting amounts. The second feature is of a second dialog state after the first dialog state and relates to the first slot.

Abstract: According to one embodiment, a support system is for adding a new slot parameter for use in a dialogue system. The support system includes an acquiring unit and a first processing unit. The acquiring unit is configured to acquire a new slot parameter to be added to the dialogue system. The first processing unit is configured to transmit first information that includes the new slot parameter to an operator of the dialogue system, based on a first evaluation value for selecting the new slot parameter.

Abstract: According to an embodiment, a dialogue system includes a satisfaction estimator, a dialogue state estimator, and a behavior determiner. The satisfaction estimator estimates a satisfaction of a user based on a speech input from the user. The dialogue state estimator estimates a dialogue state with the user based on the speech input from the user and the estimated satisfaction of the user. The behavior determiner determines a behavior towards the user based on the estimated dialogue state.

Abstract: According to one embodiment, a dialogue system includes a setting apparatus and a processing apparatus. The setting apparatus sets in advance a plurality of words that are in impossible combination relationships to each other. The processing apparatus acquires speech of a user, and when a speech recognition result of an object included in the speech includes a word combination included in the plurality of words that are in impossible combination relationships to each other, output a notification to the user that processing of the object cannot be carried out.

Abstract: In one embodiment, an ECG signal processing apparatus is configured to be connected with an electrocardiograph and an MRI apparatus and includes memory circuitry and processing circuitry configured to (a) store a parameter of an ECG signal as a first parameter in the memory circuitry, the ECG signal being acquired from the electrocardiograph operating in combination with the MRI apparatus in a period during which a gradient pulse is not applied by the MRI apparatus, (b) implement an adaptive filter for estimating noise mixed into the ECG signal due to the gradient pulse, by using the first parameter stored in the memory circuitry and a gradient magnetic field signal acquired from the MRI apparatus in a period during which the gradient pulse is applied, and (c) remove the noise mixed into the ECG signal in the period during which the gradient pulse is applied, by using estimated noise.

Abstract: In one embodiment, a signal processing apparatus that is configured to be connected to an imaging apparatus includes: a memory configured to store a predetermined program; and processing circuitry configured, by executing the predetermined program, to detect respective peaks of a plurality of biological signals related to heartbeat of plural leads, calculate difference in peak time between the plurality of biological signals, and detect a specific waveform included in the plurality of biological signals based on the difference in peak time.

Abstract: According to an embodiment, a verification system includes a storage controller, first and second receivers, a comparator, a response constructor, a response generator, and an output controller. The storage controller stores, in a storage, first response data and first situation data associated with the first response data. The first receiver receives second response data. The comparator determines a similarity between second situation data indicating a second context for using the second response data and the first situation data. The response constructor constructs response content information comprising the second response data and the first response data associated with the first situation data having the similarity equal to or greater than a threshold. The second receiver receives speech data. The response generator generates a response sentence corresponding to the speech data using the response content information. The output controller outputs for display one or more response sentences.

Abstract: In one embodiment, an ECG signal processing apparatus is configured to be connected with an electrocardiograph and an MRI apparatus and includes memory circuitry and processing circuitry configured to (a) store a parameter of an ECG signal as a first parameter in the memory circuitry, the ECG signal being acquired from the electrocardiograph operating in combination with the MRI apparatus in a period during which a gradient pulse is not applied by the MRI apparatus, (b) implement an adaptive filter for estimating noise mixed into the ECG signal due to the gradient pulse, by using the first parameter stored in the memory circuitry and a gradient magnetic field signal acquired from the MRI apparatus in a period during which the gradient pulse is applied, and (c) remove the noise mixed into the ECG signal in the period during which the gradient pulse is applied, by using estimated noise.

Abstract: In one embodiment, a signal processing apparatus includes a storage circuit and processing circuitry configured to (a) generate detection parameters for detecting a specific signal included in a biosignal relevant to a heartbeat, based on a waveform of the biosignal, (b) store the detection parameters in the storage circuit, (c) detect the specific signal by using the detection parameters, and (d) generate a synchronization signal for performing heartbeat synchronization imaging based on the specific signal.

Abstract: A sound source position estimation apparatus includes a signal input unit that receives sound signals of a plurality of channels; a time difference calculating unit that calculates a time difference between the sound signals of the channels, a state predicting unit that predicts present sound source state information from previous sound source state information which is sound source state information including a position of a sound source, and a state updating unit that estimates the sound source state information so as to reduce an error between the time difference calculated by the time difference calculating unit and the time difference based on the sound source state information predicted by the state predicting unit.