Electronics and Telecommunications Research Institute

Ki Heon Kim

Min Sik Kim

In Sung Park

Do Hoon Lee

Sang Woo Park

Han Jun Yoon

Seung Jin Ryu

Min Kyung Cho

Jong Cheoll Moon

The present invention relates to a spammer group extraction apparatus and method, which extract spammer groups that interfere with fair trade and unbiased decision making by sending messages aimed at intentionally slandering other companies (other persons, other products, etc.) on social network services. The spammer group extraction apparatus includes a data collection unit for collecting pieces of data corresponding to social network services. A natural language processing unit preprocesses the pieces of data using a natural language processing algorithm based on big data. An abnormal behavior detection unit detects abnormal behavior based on user identifications (IDs) respectively corresponding to pieces of data, preprocessing of which has been completed. A spammer extraction unit extracts a spammer group using a user ID causing the abnormal behavior and an ID of a user group including the user ID.

Spammer group extraction apparatus and method

An apparatus and method for preventing illegitimate outflow of an electronic document. The apparatus includes a taking-out control unit, a taking-out management server unit, and a self-response agent unit. The taking-out control unit generates a virtual disk for storing an electronic document to be controlled, and controls the taking-out of the electronic document. The taking-out management server unit authenticates whether the taking-out of the electronic document is legitimate taking-out. The self-response agent unit performs self-extinction when a result indicating illegitimate outflow is received from the taking-out management server unit.

Method and apparatus for preventing illegitimate outflow of electronic document

Growing community of inventors

Daejeon, South Korea

Ki Heon Kim