Canon Kabushiki Kaisha

Takayuki Kawabata

Yosuke Watanabe

Fumiaki Itoh

Shigeo Fukuoka

Haruo Yokota

Qiang Song

A pattern extraction apparatus for extracting a pattern of event occurrence from event time-series data generates an adjacent event graph by fetching adjacent events from the event time-series data, representing each of the adjacent events as a node, connecting the nodes by a directed link having a transition direction between the adjacent events and a weight, representing identical events as a single node, and, if there are a plurality of directed links between identical adjacent events, accumulating weights of the directed links into a single directed link. The pattern extraction apparatus cuts a directed link having an evaluation value smaller than or equal to a predetermined value in the generated adjacent event graph, the expected value being obtained based on the weight of the directed link.

Pattern extraction apparatus and control method therefor

There is provided an information processing apparatus capable of recognizing a plurality of movable contents, obtaining movement history information about positions of the recognized contents, determining a relationship between the contents from the movement history information about the positions, and facilitating explanation of the contents by using the relationship. To this end, images of a plurality of contents having order information are projected based on the order information, which of the projected images is selected is detected, a projection unit is caused to project an image of a content related to a source content of the detected image by using a display mode based on a relationship between the source content and the related content. Through such control, the relationship between the source content and the related content is shown in an easy-to-understand manner.

Information processing apparatus, information processing method, and storage medium for obtaining a relationship between pieces of contents from use history information about the contents

There is provided a frequent pattern extraction apparatus. In the apparatus, time series data for an item operation is divided into a plurality of item operation sets. Using a set degree of similarity between the item operation sets, an abstract item operation set is generated. A pattern of sequences that frequently appear is extracted from the sequences in the abstract item operation set. Using the pattern of sequences that frequently appear, an item as well as an item operation are recommended to a user.

Growing community of inventors

Kawasaki, Japan

Takayuki Kawabata