Sogou Wins Grand Prize at MIND News Recommendation Competition

BEIJING,Oct. 14,2020 -- Sogou Inc. (NYSE:SOGO) ("Sogou"or "the Company"),an innovator in search and a leader in China'sinternet industry,today announced that it has won the Grand Prize at the MIND News Recommendation Competition,aworld-class competition on news recommendation heldby Microsoft Research Asia (MRSA) and Microsoft News. This demonstrates Sogou's industry-leading capabilities in search andrecommendation.

The MIND News Recommendation Competitionis committed to promoting the research and practice related to news recommendation,which is a challenging task due to the ever-accelerating complexity of news information and updates,as well as the diverse and dynamic interests of users. The competition requires participants to improve news recommendation systems,based on a large-scale English dataset,to provide users more personalized reading experience and alleviate information overload. It has attractedtop teams worldwide,from countries such as China,South Korea,Canada,France,and others.

Asthis year's Grand Prize winner,Sogou has proved its technical capacity developed fromyears of in-depth research and accumulated experience in search and recommendation algorithms. The team adopteda multi-angle information modeling scheme in the competition,integrating a single model with multiple downsampling datasets,which achieved leading results in all performance indicators.

Specifically,in terms of data processing,despitethe imbalance of positive and negative news samples,the Sogou team innovatively used⅕negative instances,which generated nearly the same resultswhile greatly reducedtraining time. In terms of text modeling,through leveraging BERT'sBPR tokenizer and the combination of DNN,DIN attention mechanism and DLRM,Sogou team achieved higher accuracy of personalized news recommendation.

Theseleading technologies have also been widely applied to Sogou products,such asSogou Search and Sogou Mobile Browser,to provide more tailored recommendations to millions of users,meeting users' needsand interestsand helping them get quality information online.Sogou will continue its effortsto provide better productsandimprove user experience with this set ofcutting-edge technologies.

About Sogou

Sogou Inc. (NYSE: SOGO) is an innovator in search and a leader in China's internet industry. With a mission to make it easy to communicate and get information,Sogou has grown to become the second-largest search engine by mobile queries and the fourth largest internet company by MAU in China. Sogou has a wide range of innovative products and services,including the Sogou Input Method,which is the largest Chinese language input software for both mobile and PC. Sogou is also at the forefront of AI development and has made significant breakthroughs in voice and image technologies,machine translation,and Q&A,which have been successfully integrated into our products and services.

For media enquiries,please contact:

Serena Liu

Sogou Public Relations

Tel: +86 10 5689 9999 (61958)

Email: press@sogou-inc.com

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