Sony Corporation

Saturn Licensing LLC

Tsuyoshi Takagi

Masahiro Fujita

Takayuki Sakamoto

Kotaro Sabe

Hiroki Kato

Hideki Shimomura

Masanobu Katagi

Izuru Kitamura

Jun Yokono

Toru Akishita

Akihiro Watanabe

Rika Horinaka

Gabriel Costa

Rika Hasegawa

Kohtaro Sabe

Noboru Murabayashi

Tsutomu Sawada

Makoto Inoue

Katsuki Minamino

Kenichiro Kobayashi

Akihiko Ito

Toshiharu Yabe

Naoyasu Hosonuma

Masanori Omote

Motoki Tsunokawa

Shinya Ohtani

Osamu Hanagata

Kazufumi Oyama

Yukiko Yoshiike

Ugo Di Profio

Craig Ronald Arkin

An information processing apparatus according to one aspect of the present technology acquires a viewing log of a content item including at least one of a moving image or a sound, acquires display data representing details of the content item at each time, and displays a chart representing a transition of a viewing state of the content item specified on the basis of the viewing log, and the display data representing details of the content item at each time in a time zone for which the transition of the viewing state is represented by the chart, on a screen that is one and the same. The present technology can be applied to a system used for monitoring the viewing state of the content item.

Information processing apparatus, information processing method, and program

A content recommendation system includes: an attribute value storage means which stores one or more attribute values of attributes for each content; a preference distribution storage means which stores a user preference degree for each attribute value; an attribute value acquisition means which acquires an attribute value of at least one attribute for each content; a preference distribution update means which updates the storage contents in the preference distribution storage means in accordance with the acquired attribute value; a condition determination means which selects an attribute value of one or more attributes in accordance with probability based on the user preference degree stored in the preference distribution storage means and determines the condition of the attribute value of the one or more attributes in accordance with the selected attribute value; and a content selection means which selects some or all of the contents in accordance with the determined condition.

Content recommendation system, content recommendation method, and information storage medium

A content recommendation system including a step which selects some from a plenty of music compositions in accordance with attribute conditions successively generated, a step which further selects a part or all of the selected music compositions in accordance with the similarity degree between the feature vector of each of the selected music compositions and the user preference vector, and a step which presents the selected music composition to the user.

Content recommendation system, content recommendation method, content recommendation apparatus, program, and information storage medium

Provided is an information processing system including a first information processing apparatus and a second information processing apparatus. The first information processing apparatus includes a content recording unit to record a content and to obtain and record a sights keyword related to the recorded content. The second information processing apparatus includes a place-name accumulating unit to obtain and accumulate place-name information corresponding to a current location of the second information processing apparatus, a sights keyword acquisition unit to obtain the sights keyword recorded on the first information processing apparatus, a sights keyword determining unit to narrow down a sights candidate in the place-name information, to thereby extract sights-candidate place-name information, and to determine the sights keyword corresponding to the sights-candidate place-name information, and a content-record informing unit to inform that a content related to the determined sights keyword is recorded on the first information processing apparatus.

Information processing system, information processing apparatus, and information processing method

There is provided a video recording apparatus including a content accumulation part accumulating video content, a feature extraction processing part extracting an image or voice as a feature from the video content accumulated by the content accumulation part, and obtaining word information from the extracted image or the extracted voice, a word information acquisition part acquiring sorted word information obtained using clustering processing on word information identified from an image captured by a camera, and a content retrieval part retrieving relevant video content from the video content accumulated by the content accumulation part based on the sorted word information acquired by the word information acquisition part and the word information acquired by the feature extraction processing part.

Video recording apparatus, information processing system, information processing method, and recording medium

Disclosed is an information processing apparatus including: a learning unit that learns user preference for each type in each category for classifying content items in a server; a selection unit that, based on type information indicating a recommendable type which is a type of content items recommendable by the server and a substitutable type which is a type that satisfies a predetermined condition out of the recommendable type, selects one or more recommendable types in a case where there is the recommendable type corresponding with user preference in the selected category, and selects one or more substitutable types in the selected category in a case where there is no recommendable type corresponding with user preference; and an obtaining unit that obtains a content of the selected type from the server.

Information processing apparatus, and method, information processing system, and program

In an information processing apparatus, a text information receiving unit receives text information, and a received text morphological analysis unit performs morphological analysis on the text information. An extraction unit extracts text information of a subtitle included in a program. A subtitle text morphological analysis unit performs morphological analysis on the text information of the subtitle. A similarity calculation unit calculates the similarity between a keyword included in a result of the received text morphological analysis performed by the received text morphological analysis unit and a keyword included in a result of the subtitle text morphological analysis performed by the subtitle text morphological analysis unit. A comparison unit compares the similarity with a predetermined threshold value. A recording unit records the program at a time at which the comparison unit determines that the subtitle text of the program currently includes a keyword having similarity higher than the predetermined threshold value.

Information processing apparatus, information processing method and information processing program

An information processing apparatus includes an obtaining unit configured to obtain program information on programs that are to be broadcast in a predetermined time period; an extraction unit configured to extract keywords indicating the content of the programs from text data contained in the program information; a storage unit configured to prestore theme definition information containing information on the keywords; a theme identifying unit configured to identify which theme a predetermined program belongs to on the basis of the keyword and the theme definition information; and a rate-of-change computation unit configured to compute, for each of the identified themes, a rate of change of the number of times a program belonging to the identified theme is broadcast on a first day in the predetermined time period to the number of times the program is broadcast on a second day.

Information processing apparatus and method, and recording medium

In an information processing apparatus, an acquisition unit acquires a keyword, and a calculation unit calculates the importance level of each keyword by adding a value determined depending on an increase in the number of occurrences to the importance level and subtracting a value determined depending on an increase in the difference between a current time and a last acquisition time to the importance level. An extraction unit extracts text information of a subtitle in a program. A subtitle morphological analysis unit morphologically analyzes the text information of the subtitle. A comparison unit compares each acquired keyword with each keyword detected via the morphological analysis. A recording unit records the program if the comparison indicates that any acquired keyword is identical to any keyword detected via the morphological analysis. A registration unit registers the recorded program and information indicating the importance level in a table in association with the keyword.

Information processing apparatus, information processing method, and information processing program

An information processing apparatus includes an obtaining unit configured to obtain program information on programs to be broadcast in a predetermined time period; a keyword extraction unit configured to extract keywords obtained by performing morphological analysis on text data contained in the obtained program information in such a manner as to be associated with corresponding programs; a current-affairs keyword extraction unit configured to extract, as current-affairs keywords, keywords that are associated with corresponding programs to be broadcast on a plurality of different broadcast stations and that are associated with only programs to be broadcast today from among the keywords extracted by the keyword extraction unit, wherein, for each of the extracted current-affairs keywords, the number of appearances of the current-affairs keyword is summed, and an importance degree indicating an importance characteristic of the current-affairs keyword for a user is determined on the basis of the summed number of appearances.

Identifying broadcast programs that may be of interest to a user

An information processing apparatus includes an acquisition unit acquiring keywords extracted from text data representing a first content to be a base of a search and scores of the respective keywords, and keywords extracted from text data representing a second content for calculating a degree of matching with the first content, and scores of the respective keywords, a matching-degree calculation unit calculating the degree of matching between the first content and the second content based on scores of keywords commonly included in the acquired keywords relating to the first content and the acquired keywords relating to the second content, and an output unit outputting, as a search result, information on a predetermined number of the second content which has a high degree of matching with the first content based on a result of calculation performed by the matching-degree calculation unit.

Processing apparatus and associated methodology for keyword extraction and matching

A system and method for achieving secure and fast computation in hyperelliptic cryptography is realized. Fast scalar multiplication is achieve by executing computing operations including halving as computing processing in scalar multiplication with respect to a divisor D in hyperelliptic curve cryptography. For example, computing operations including halving are executed in scalar multiplication with respect to a divisor D on a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x+x+h, f=0 as parameters, a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x+hx+h, f=0 as parameters, or a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x as a parameter. Further, reduced complexity and faster computation are realized through the application of a table that records which of k, k', (k, k&#x2032;) is correct on the basis of a computed value of [&#xbd;D] with respect to a fixed divisor D, and through a reduction in the number of inversion operations.

Cryptographic computation method, cryptographic system, and computer program

An apparatus and a method for performing a hyperelliptic curve cryptography process at a high speed in a highly secure manner are provided. A base point D is produced such that the base point D and one or more of precalculated data in addition to the base point used in a scalar multiplication operation based on a window algorithm are degenerate divisors with a weight smaller than genus g of a hyperelliptic curve. An addition operation included in the scalar multiplication operation based on the window algorithm is accomplished by performing an addition operation of adding a degenerate divisor and a non-degenerate divisor, whereby a high-speed operation is achieved without causing degradation in security against key analysis attacks such as SPA.

Cryptographic processing apparatus

An information processing apparatus which may include acquisition means for acquiring meta-data of a content; morphological analyzing means for performing morphological analysis on text information included in the meta-data of the content; comparison means for comparing a morphological analysis result of the morphological analyzing means and a plurality of list patterns of predetermined performer names; and when there is a list pattern of predetermined performer names having matched at least one part or more out of the morphological analysis result on the basis of the comparison result of the comparison means, first extraction means for extracting a performer name with the list pattern of the matched predetermined performer name.

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Kanagawa, Japan

Tsuyoshi Takagi