关键词: 推荐系统, 模型, 内容质量, 文本识别, 图片识别, 信息安全

Abstract: Since launched in 2012, Toutiao has been committed to connect people and information by artificial intelligence, make the distribution of high quality, abundant information more efficient and accurate, create values for users. Toutiao has now become one of the largest information platforms in China, which own more than 100 vertical channels, such as science and technology, sports, health, food, education, agriculture, rural areas and farmers, Chinese style, the NBA, etc, supporting multiple sort of genres of online information, such as graphic and text, atlas, small video, short video, short articles, live video streaming, mini program, etc. To meet the users demands for obtaining valuable information in such an exploding information era, Toutiao has taken the lead in the field of recommendation systems and made significant achievements through a lot of explorations and practice, such as applying the largescale cluster streaming computing, natural language processing, deep learning to content recommendation and quality evaluation processing, text and image recognition, video understanding and recommendation, multimedia creation and visual platform, etc.

Key words: recommendation system, model, content quality, text recognition, image recognition, information security