Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Takashi Tsuzuki

Kazutoyo Takata

Satoshi Matsuura

Hiroshi Kutsumi

Kenji Mizutani

Yoshiyuki Okimoto

Tsuyoshi Inoue

Eiichi Naito

Kenji Kondo

Kazuki Kozuka

Mototaka Yoshioka

A similar case search apparatus includes: a keyword extracting unit which extracts a keyword from an image interpretation report; a diagnosis tree analyzing unit which extracts, based on the keyword, one or more target diagnosis flows corresponding to the image interpretation report, by referring to a diagnosis tree storage unit storing diagnosis trees; a similar diagnosis flow extracting unit which extracts one or more diagnosis flows similar to the one or more target diagnosis flows from among the plurality of diagnosis flows included in the diagnosis trees stored in the diagnosis tree storage unit, based on the degree of difficulty regarding a diagnosis item or the degree of difficulty regarding a disease name; and a similar case searching unit which searches out one or more case data sets corresponding to the similar diagnosis flows from among a plurality of case data sets stored in a case data storage unit.

Similar case search apparatus and similar case search method

A similar case searching apparatus comprising: a weight determining unit which determines the weight to each of feature quantities extracted from an interpretation target image, based on predetermined two-data correlation information defining the correlation between the feature quantity and one of at least one image interpretation item and a disease name both included in an image interpretation report of a medical image included in a case data item registered in a case database, such that the weight is larger as the correlation is higher; and a similar case searching unit which searches for a similar case data item including a similar image, by weighting, using the weight, each image feature quantity in a first set extracted from the interpretation target image and a corresponding one of the image feature quantities in a second set extracted from the medical image, and comparing the weighted first set and the weighted second set.

Similar case searching apparatus and similar case searching method

A behavior recognition apparatus includes a hand movement observation unit which outputs hand movement data indicating a hand movement made by a user; a velocity variation detection unit which detects a time at which the hand movement matches a predetermined movement pattern; and a feature selection unit which selects the hand movement data outputted at the time detected by the velocity variation detection unit. A standard behavior pattern storage unit stores a movement pattern data sequence represented by a hand movement data sequence, in association with a user behavior; and a behavior recognition unit calculates a degree of similarity between the movement pattern data sequence stored in the standard behavior pattern storage unit and the hand movement data selected by the feature selection unit, and recognizes, as the user behavior, a behavior represented by the movement pattern data sequence when the degree of similarity is the highest.

Behavior recognition apparatus

A related word presentation device includes a program information storage unit that stores program information of each program; and an information dividing unit that generates, for each of the attributes of the words included in the program information, at least one group which includes a reference word belonging to the attribute and a set of words which co-occur with the reference word in a program. A degree-of-relevance calculating unit stores attribute-based association dictionaries each of which indicates, for the corresponding attribute of words, (i) the words and (ii) the degrees of relevance between the words calculated based on the frequency of co-occurrence in each of groups. A search condition obtaining unit obtains the search word and the attribute; a substitute word obtaining unit selects substitute words from the attribute-based association dictionary for the obtained attribute; and an output unit presents the selected substitute word.

Association dictionary creation apparatus

In an interactive program search apparatus () which presents search condition candidates for expanding or narrowing down search results, reason words indicating the reason why the search condition candidates are presented are adaptively determined based on user's preference, search actions, and watching actions. An association-source word extracting unit () extracts an association-source word from the program search results, and an associated word extracting unit () extracts associated words associated with the association-source word, from an association dictionary storage unit (). A reason word extracting unit () extracts reason words illustrating the relationships between the association-source word and the associated words, using the association-source word, the associated words, and the obtainment history information composed of words included in the program information of the programs selected by the user in the past and selected words among the words.

Interactive program search apparatus

An information retrieval apparatus, which can present to a user only a related word matching a user search intent, includes: an associative dictionary storage unit for storing words included in plural pieces of text to be searched and relevance degrees between the words; an appearance frequency storage unit for storing an appearance frequency that is the number of pieces of text in which the words stored in the associative dictionary storage unit appear, among the plural pieces of text to be searched; and a related word obtaining unit that obtains a related word to be presented to the user, from the relevance degree between the search word entered by the user and another word among the words, the appearance frequency, and the user search intent.

Informationn retrieval apparatus

To provide a content searching device which can efficiently present to the user a topical related keyword. A content searching device (), which searches content from a content database with a use of a related keyword, includes: a related segment calculating unit () which calculates, for each content attribute, a related segment which is defined in order for first content and second content to be included in a same time segment, the related segment being calculated based on whether or not a degree of difference, for each content attribute, calculated out of a plurality of first keywords and a plurality of second keywords meets a predetermined reference value, the plurality of the first keywords each describing the first content to be stored in the content database (), and the plurality of the second keywords each describing the second content having been stored in the content database (); and a dictionary updating unit () which updates a degree of relevance stored in a dictionary database (), the degree of relevance being updated with a use of the related segment, and the degree of relevance, among the plurality of keywords, being calculated for each content attribute.

Content searching device and content searching method

A content searching apparatus facilitating a search of a content, which a user desires, even where relativity between a content and a keyword change, wherein the content searching apparatus includes: a content table storing unit storing content tables; an input unit obtaining a keyword, which has been selected as a selected keyword; a relevant keyword creating unit (i) calculating a relevance degree, for each of keywords, to the selected keyword, based on a target content table, (ii) selecting a keyword having a predetermined relevance degree out of each of the keywords, and (iii) creating a relevant keyword out of the corresponding keywords; and a variance calculating unit calculating a variance value of selected keywords including the keyword, when the user is confused. Further, the content searching apparatus includes a content table selecting unit changing the above mentioned target content table to another content table, when the variance value is larger than a threshold value.

Content searching apparatus

A contents retrieval device () presenting an appropriate related keyword to a user even when an object user wishes to retrieve dynamically changes. The contents retrieval device () includes a contents estimation unit () retrieving contents according to a search keyword, a document space database () storing document spaces according to an occurrence frequency of the keyword, a document space selection unit () selecting a the narrowing-down document space and an expansion document space from the document space database () according to the search keyword and the occurrence frequency of the document space indicating a degree of relevance with the contents according to the search keyword, a related keyword estimation unit () selecting keywords corresponding to the narrowing-down document space and the expansion document space as a narrowing-down keyword and an expansion keyword, respectively, and an output unit displaying the selected narrowing-down and expansion keywords.

Contents retrieval device for retrieving contents that user wishes to view from among a plurality of contents

A speech recognition device presenting whether a user's utterance is an unregistered word and whether the utterance should be repeated. The device includes a vocabulary storage unit () defining a vocabulary for speech recognition, and a speech recognition unit () checking the uttered speech against registered words. The device also includes a similarity calculation unit () calculating a similarity between the uttered speech and acoustic units, a judgment unit () judging, based on the check by the speech recognition unit () and the calculation performed by the similarity calculation unit (), whether the uttered speech is a registered or unregistered word, an unregistered word unit () storing unregistered words, an unregistered word candidate search unit () searching the unregistered word unit () for unregistered word candidates, the, when the judgment unit () judges that the uttered speech is an unregistered word, and a display unit () displaying the result.

Speech recognition device, speech recognition method, and program

A named entity extracting apparatus that extracts a named entity suitable for a user by enabling an order to be set in which the named entity is extracted from texts includes: an extraction order reading unitthat acquires a named entity pattern name stored in association with an extraction order in an extraction order storage unit; a named entity extracting unitthat extracts the named entity from input texts using a named entity pattern corresponding to the named entity pattern name acquired by the extraction order reading unit; and an extraction end judging unitwhich outputs, in the case where extraction has not ended, a text on which the extraction is in progress to the extraction order reading unit, and continues the named entity extraction processing.

Named entity extracting apparatus, method, and program

An information retrieval apparatus using a preference-based association dictionary, having words stored therein that are dynamically changed according to user's preferences, and using a general association dictionary storing a relationship between keywords included in a database. The apparatus includes: a matching unit which calculates a degree of matching between a search condition inputted from an input unit and a profile; a generation unit which obtains (i) one or more related words from a general association dictionary in a case where the matching degree is smaller than a predetermined threshold, and (ii) one or more related words from a preference-based association dictionary in a case where the matching degree is greater than the predetermined threshold; and a retrieval unit which retrieves information that meets the generated search condition.

Information retrieval apparatus

An apparatus including: a preference word obtainment unit that, when a search condition is input, obtains related words associated with keywords included in the search condition by a predetermined threshold or greater. Further, the preference word obtainment unit decreases the predetermined threshold to obtain related words, from a preference association dictionary when an expansion command is received. Moreover, the apparatus includes (i) a judgment unit which judges whether the related word obtained by the preference word obtainment unit is stored when the expansion command is received, (ii) a general word obtainment unit which obtains a related word from a general dictionary when it is judged that the related word obtained by the preference word obtainment unit is stored, and (iii) a retrieval unit which generates a search condition from the related word, obtains information meeting the generated search condition, and outputs the obtained information as a search result.

There is provided an information retrieval apparatus which can properly retrieve information associated with a user's preference from one of a plurality of data bases having different use frequencies. An information retrieval apparatus includes: a retrieval instruction issue unit which identifies one of an information source A data base, an information source B data base and an information source C data base according to the user's operation; a retrieval keyword selection unit which preferentially selects, from a group of keywords indicating the user's preference, one or more strongly preferred keywords based on a number associated with the use frequency of the data base identified by the retrieval instruction issue unit; and a retrieval unit which retrieves information including the one or more keywords selected by the retrieval keyword selection unit from the data base identified by the retrieval instruction issue unit.

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Osaka, Japan

Takashi Tsuzuki