Скачать или смотреть Using AI models to improve User experience at eBay Search - Arnab Dutta, Gleb Polushin - MICES 2023

eCommerce search employs a plethora of modules to enhance the user experiences. At eBay search our constant effort has always been to deliver products catering to the above goal. One such user focussed module is automated spelling correction. In this talk, we will share our approach for iteratively solving the problem using naive methodologies and also advanced state of the art modeling paradigms. In the process we would also highlight the various data creation strategies one can employ to train such models. Our work lies at the intersection of enabling users towards a better ecommerce search experience and pushing the boundaries of AI in augmenting query reformulations in search. In particular, we explore and perform comparative analysis of several pretrained large language models, fine tune them on our task specific data and report its offline performance metrics. In particular, we choose a particularly complex learning task of spelling correction and employ variants of transformer based pre-trained LLMs like T5 and BART and combine its multilingual capabilities. We outline in this session the current spelling correction models, the need for pre-trained models and how this can be advanced further using state of the art prefix tuning style learning.

Arnab is a staff data scientist in the Search Science team at eBay. He focuses primarily in leveraging ML techniques towards natural language understanding. He has also worked extensively on knowledge graphs, intent understanding, context extraction to improve the search engine that powers eBay’s marketplace. He has extensive enterprise experience in model building, NoSQL databases, information extraction, probabilistic models. He has publications in ESWC, ISWC, WWW and more. Arnab received his PhD in Artificial Intelligence from the University of Mannheim in 2015.

Gleb is a Data Scientist in the Search Science team at eBay. He has experience of building NLP solutions in e-commerce companies, and now he focuses on applying ML solutions to improve search quality at eBay. Having a background in software engineering and data-journalism, he is passionate about NLP, data analytics and data science.