As Chief Data Officer at Sainsbury’s plc, Helen’s remit is to maximise the value of the Group’s data asset: democratising access and finding creative ways to unlock its insight potential in support of Sainsbury’s strategy to ‘know our customers better than anyone else’. Over the last 8 years at Sainsbury’s in roles including Director of Innovation, and Director of Data and Relationship Marketing, Helen has brought to bear her experience of navigating large organisations to develop products and propositions at the intersection of data, digital, technology, performance marketing and loyalty.

Julia Silge is a data scientist at Stack Overflow, with a PhD in astrophysics and an abiding love for Jane Austen. She is both an international keynote speaker and a real-world practitioner focusing on data analysis and machine learning practice. She is the author of Text Mining with R, with her coauthor David Robinson. She loves making beautiful charts and communicating about technical topics with diverse audiences.