Abstract: According to an embodiment, a keyword detection device includes a memory and one or more processors coupled to the memory. The one or more processors are configured to: detect a phrase related to a keyword from text information that is a recognition result of input information represented in a predetermined input form; calculate output similarities conforming to similarities between the phrase and the keywords included in a keyword list in which, for each of a plurality of the keywords, keyword notation of the corresponding keyword is associated with keyword form information representing the corresponding keyword in an input form; and output the keywords in the keyword list according to the output similarities.

Abstract: An information processing device includes at least one hardware processor. The hardware processor selects one or more pieces of partial document data from document data. The hardware processor extracts, from the partial document data, first information being a word or a phrase for specifying a first attribute of the partial document data. The hardware processor extracts, from the partial document data, second information being a word or a phrase for specifying a second attribute of the partial document data. The hardware processor calculates a first feature value representing a feature of the first information. The hardware processor calculates a second feature value representing a feature of the second information. The hardware processor analyzes the document data on the basis of the first feature value and the second feature value.

Abstract: A sentence search apparatus includes a processing circuit. The processing circuit: accept a character string input by a user; search a sentence collection in which a plurality of sentences as a search target is accumulated based on the accepted character string to acquire one or more search result sentences matching the accepted character string; perform sentence analysis on the search result sentence to acquire a dependency relation between words constituting the search result sentence; and determine one or more recommended words for narrowing down the search result sentence to a sentence desired by the user based on the accepted character string, the search result sentence, and the dependency relation.

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, the interface-providing apparatus comprises an identifying unit and a generating unit. The identifying unit identifies a keyword from dialogue data including a question text to request information, and a response text in reply thereto. The generating unit generates display information to display a user interface for receiving feedback input relating to a degree of usefulness of a keyword when searching for the requested information.

Abstract: According to one embodiment, a spoken sentence processing apparatus includes a processing circuit. The processing circuit receives a spoken sentence from a user. The processing circuit estimates an intention expressed by the user based on the spoken sentence. The processing circuit estimates a search condition specified by the user based on the spoken sentence. The processing circuit determines whether the spoken sentence is an invalid speech respectively in a first estimation result related to the estimated intention and a second estimation result related to the estimated search condition.

Abstract: According to one embodiment, a dialogue apparatus includes a processing circuit. The processing circuit designates one database from among a plurality of databases. The processing circuit extracts a keyword from text information. The processing circuit searches the designated database and another database which is included in the plurality of databases and which is other than the designated database, by using the keyword. The processing circuit generates a response in accordance with a first number of hit items, which is a number of data items matching the keyword in the designated database, and a second number of hit items, which is a number of data items matching the keyword in said another database.

Abstract: An analyzing apparatus according to an embodiment includes a memory and a hardware processor coupled to the memory. The hardware processor is configured to: calculate a first similarity between a first word representing a category and a second word; apply, to one or more template sentences, each of one or more second words having the first similarity higher than a first threshold; analyze the one or more template sentences each including the second word and classify the second word into one or more first categories; and display, for each of the first categories, the second word used in the classification into the first categories on a display device.

Abstract: According to one embodiment, a communication data log processing apparatus includes a processor including hardware. The processor receives communication data contained in a communication data log as a log of the communication data containing a speech sentence and meta information. The processor determines a section to which the received communication data should belong based on the speech sentence and the meta information.

Abstract: According to one embodiment, an information processing apparatus includes a processing circuit. The processing circuit generates each of keywords stored in a frequently asked question (FAQ) collection as an utterance sentence. The processing circuit generates dialogue data for each of the keywords, the dialogue data generated by performing a dialogue for each of the keywords at least once, the dialogue obtained by generating a response sentence to the utterance sentence based on a result of searching the FAQ collection by use of the utterance sentence. The processing circuit generates aggregation data representing how often each of the keywords is used in the dialogue, based on the dialogue data.

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 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: 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, an information processing apparatus includes a processing circuit. The processing circuit generates each of keywords stored in a frequently asked question (FAQ) collection as an utterance sentence. The processing circuit generates dialogue data for each of the keywords, the dialogue data generated by performing a dialogue for each of the keywords at least once, the dialogue obtained by generating a response sentence to the utterance sentence based on a result of searching the FAQ collection by use of the utterance sentence. The processing circuit generates aggregation data representing how often each of the keywords is used in the dialogue, based on the dialogue data.

Abstract: According to one embodiment, a dialogue apparatus includes a processing circuit. The processing circuit designates one database from among a plurality of databases. The processing circuit extracts a keyword from text information. The processing circuit searches the designated database and another database which is included in the plurality of databases and which is other than the designated database, by using the keyword. The processing circuit generates a response in accordance with a first number of hit items, which is a number of data items matching the keyword in the designated database, and a second number of hit items, which is a number of data items matching the keyword in said another database.

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 one embodiment, the interface-providing apparatus comprises an identifying unit and a generating unit. The identifying unit identifies a keyword from dialogue data including a question text to request information, and a response text in reply thereto. The generating unit generates display information to display a user interface for receiving feedback input relating to a degree of usefulness of a keyword when searching for the requested information.

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: 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: An analyzing apparatus according to an embodiment includes a memory and a hardware processor coupled to the memory. The hardware processor is configured to: calculate a first similarity between a first word representing a category and a second word; apply, to one or more template sentences, each of one or more second words having the first similarity higher than a first threshold; analyze the one or more template sentences each including the second word and classify the second word into one or more first categories; and display, for each of the first categories, the second word used in the classification into the first categories on a display device.