Abstract: Techniques for filtering information are described herein. In accordance with the present disclosure, a text acquisition module is configured to acquire text content to be filtered and a scanning module is configured to scan the text content to be filtered. The disclosed techniques scan the text content through a preset keyword dictionary, record a position of each keyword in the text content and acquire character pitch between keywords in the text content according to the position of each keyword in text content. A pitch judgment module is configured to judge whether the character pitch exceeds a preset character pitch and filter the keyword(s) in the text content in response to a determination that the character pitch exceeds the preset character pitch.

Abstract: The present invention discloses a system and a method for filtering keywords. The system comprises: a text acquisition module configured to acquire text content to be filtered; a scanning module configured to scan the text content to be filtered, if the text content to be filtered contains keyword(s), record a position of each keyword in the text content to be filtered and acquire character pitch between keywords in the text content to be filtered according to the position of each keyword in text content to be filtered; and a pitch judgment module configured to judge whether the character pitch exceeds a preset character pitch, if not, filter the keyword(s) in the text content to be filtered. The invention improves identification capability for sensitive information and improves filtering adaptability for sensitive information by obtaining character pitch between keywords in text content to be filtered and judging character pitch.