Samsung Electronics Co., Ltd.

Ye-Jin Noh

Jeong-ja Kim

Yeong-Ho Jin

Yeon-Ho Jin

An apparatus and method for processing data stream are provided. A query execution plan for processing data stream is shared between the server and the terminal. The server builds a query execution plan and determines a part of the built query execution plan to be executed in the terminal. The terminal executes the part of the built query execution plan and transfers a result of the execution. The server executes the remaining part of the built query execution plan based on the execution result transferred by the terminal. The part of the query execution plan to be executed in the terminal is determined depending on the performance of the terminal.

Apparatus and method for processing a data stream

An apparatus and method for processing a data stream using a cluster query, are provided. Collected queries are clustered into a predetermined vector space based on a feature vector of the collected queries. In response to a query received from a user, the received query is classified to a cluster and may be replaced with a centroid query of the cluster to which the received query belongs. The data stream processing apparatus processes the centroid query and provides an approximate result to the user.

Growing community of inventors

Seongnam-si, South Korea

Ye-Jin Noh