Yiyi Wang

Yiyi Wang has a diverse background in data science and analytics, with a range of experiences in various companies.

Starting in 2012, Yiyi worked as a Summer Intern at Travelers Insurance.

From 2013 to 2015, they served as an Assistant Director - Advanced Analytics at Liberty Mutual Insurance, where they led efforts in choosing a software vendor for an anti-fraud solution and utilized advanced machine learning and visualization techniques to enhance customer retention and fraud detection.

In 2015, Yiyi joined Amazon as an Applied Scientist II, specializing in Amazon Alexa AI. In this role, they owned and managed the development of the first-ever automated AI product in the dialogue evaluation domain. Yiyi'swork resulted in a model that reduced human annotation efforts and was deployed in multiple international markets.

In 2021, Yiyi joined Twitter as a Senior Data Scientist. There, they served as a tech lead in relevance platform DS initiatives and developed a signal prioritization strategy for candidate generation. Yiyi collaborated with product managers and engineering partners to align the vision and roadmap.

Currently, Yiyi is working at Nextdoor as a Staff data scientist. No end date has been provided.

Overall, Yiyi Wang has a strong background in data science and has made significant contributions in various roles throughout their career.

Yiyi Wang holds a Doctor of Philosophy (Ph.D.) degree in Statistics from Texas A&M University. Prior to that, they obtained a Bachelor of Science (B.S.) degree in Applied Mathematics from Shanghai University of Finance and Economics. In addition to their formal education, Yiyi Wang has also earned several certifications including a Deep Learning Specialization from Coursera Course Certificates, completed in July 2018. Yiyi also holds certifications in Sequence Models, Convolutional Neural Networks, Structuring Machine Learning Projects, Improving Deep Neural Networks: Hyperparameter tuning, Regularization and Optimization, Neural Networks and Deep Learning, and a SAS Certified Advanced Programmer for SAS 9 from SAS, obtained in January 2012.