International Business Machines Corporation

Miki M Enoki

Yohei Ikawa

Michiaki Tatsubori

Hiroshi Horii

Raymond Harry Rudy

Yuto Yamaguchi

Akiko Suzuki

Tamiya Onodera

Takashi Sakairi

Tetsuya Nasukawa

Toyotaro Suzumura

Takahide Nogayama

Rika Nagahara

Yohsuke Ozawa

Yuji Watanabe

Kiyokuni Kawachiya

Issei Yoshida

Hiroshi Kanayama

Shiho Negishi

A computer-implemented method for invalidating an access token includes generating an access token and an HTML file in response to receipt of a request for issuing the access token, the HTML file comprising a set of instructions for rendering on one window in a browser, a code for generating a child segment in a memory which is controlled by the window, and a code for invalidating the access token in response to completion of rendering on the child segment, in response to completion of receiving, from a resource server, one or more resources requested by a client program executed on the child segment or in response to closing of the window, sending the access token and the HTML file to the browser, and invalidating the access token, in response to receipt, from the browser, of a request for invalidating the access token.

Invalidation of an access token

A computer readable medium having instructions embodied therewith, the instructions executable by a processor or programmable circuitry of a federation server to cause the processor or programmable circuitry to perform operations including configuring a plurality of identification (ID) federations between the federation server and a plurality of applications such that each of the plurality of ID federations is between the federation server and one of the plurality of applications, receiving a first authentication request for authenticating a user who has been authenticated on a first application of the plurality of applications using an ID federation between the first application and the federation server from among the plurality of ID federations, and sending a second authentication request to a second application of the plurality of applications for authenticating the user using an ID federation between the federation server and the second application from among the plurality of ID federations.

Identification federation based single sign-on

A system to reduce a required memory area (storage capacity) and save time and effort for updating target attributes in aggregation processing is disclosed. The system for aggregating data includes an index storing unit for storing DtoK indices arranged in predetermined order, each of the indices specifying a list of attributes included in a target data item from identification information of the target data item, and a word list that is a list of attributes included in a plurality of the target data items, and an aggregation processing unit for finding, for each attribute, target data items including the attribute and executing aggregation processing for aggregating attributes whose relation with the target data items meets a predetermined standard. A link is created for each attribute in the word list for sequentially following an element in the index for each target data item, and target data items are found based thereon.

System, method, and program for aggregating data

Methods and systems for estimating a probability of re-sharing information include extracting keywords from a set of documents addressed to a user. The keywords from the set of documents are weighted according a metric for the user's interest in the keywords' respective source documents to create an interest model. A new document having one or more keywords is received. A likelihood that the user will re-share the new document is determined. The likelihood is based on the interest model and the one or more keywords present in the new document. The new document is automatically responded to based on the determined likelihood.

Estimating probability of spreading information by users on micro-weblogs

A feature selection apparatus, including a computer readable storage medium storing a program, and a processor executing the program and configured to perform storing a spatio-temporal database in the computer readable storage medium, extracting data under a predetermined condition from the spatio-temporal database for sorting, receiving a query, and outputting the data according to the query of the spatio-temporal database.

Method, program, and system for processing space-time database

A system and method to estimate a location relating to a user who has not filled in information about the location in a profile field in social media such as a microblog. The system and method estimates association between a user in social media and a location includes the steps of acquiring a first content posted to the social media by a first user associated with a first location, determines regional localization of the first content on the basis of the first location, acquires a second content posted to the social media by a second user not associated with a location, determine the degree of a relationship between the first content and the second content, and associating the first location with the second user on the basis of the localization and the degree of the relationship.

Method, computer program and computer for estimating location based on social media

The present invention provides at least a method includes: extracting a plurality of partial communities from a plurality of users, based on the relationships of companion messages; computing a first degree of similarity for showing the similarity of the companion partial communities, based on the relationship of a user belonging to one partial community with a user belonging to the other partial community, from among the plurality of communities; computing a second degree of similarity for showing the similarity of companion partial communities, based on words within the messages sent by users belonging to both partial communities and under the condition that the first similarity be higher than a predetermined first threshold value; and creating an integrated community by integrating the companion partial communities under the condition that the second similarity be higher than a predetermined second threshold value.

Method, computer program and computer for detecting communities in social media

The present invention provides a method for selecting an identified message group from among the plurality of messages sent by a plurality of users of social media. For the messages sent by users other than the original user that quote the message sent by the original message user, the method provides: performing a primary evaluation of the potential for being further resent; identifying a single user who has sent a message for which the primary evaluation result was higher than a predetermined first threshold; identifying a message group similar to a resent messages group, based on a resent messages group that quotes the message send by the single user; performing a secondary evaluation for the potential that the similar message group will be further resent; and selecting a message group for which the secondary evaluation result was higher than a predetermined second threshold.

Method, computer program and computer for detecting trends in social media

Methods and systems for estimating a probability of re-sharing information include extracting keywords from a set of documents addressed to a user; weighting the keywords from the set of documents according a metric for the user's interest in the keywords' respective source documents to create an interest model; receiving a new document having one or more keywords; and determining a likelihood that the user will re-share the new document, where the likelihood is based on the interest model and the one or more keywords present in the new document.

A method, system, and a computer program product for querying a database. The system includes: a storage means; a processor communicatively coupled to the storage means; and a feature selection module communicatively coupled to the storage means and the processor, wherein the feature selection module is configured to perform the steps of a method including: storing a database in the storage means, the database including a time field; extracting data in a predetermined period from a current time from the database; sorting the data by the time field; buffering the sorted data in a main memory; receiving a query including time; and outputting the data buffered on the basis of the time field as a stream.

To provide a technique to estimate a location relating to a user who has not filled in information about the location in a profile field in social media such as a microblog. A method for estimating association between a user in social media and a location includes the steps of acquiring a first content posted to the social media by a first user associated with a first location, determining regional localization of the first content on the basis of the first location, acquiring a second content posted to the social media by a second user not associated with a location, determining the degree of a relationship between the first content and the second content, and associating the first location with the second user on the basis of the localization and the degree of the relationship.

A method, device, and computer program product for detecting negative opinions in social media, computer program product, and computer. Negative opinions in social media can be precisely detected at an early stage. A method for processing, with a computer, a plurality of messages sent by a plurality of users over time includes the following steps: obtaining a plurality of messages, each including a specific proper noun; determining a politeness level of each of the plurality of messages, each including the specific proper noun; and calculating a proportion of messages having a politeness level lower than a certain threshold with respect to the plurality of messages, each including the specific proper noun.

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Kanagawa-ken, Japan

Miki M Enoki