Xiang Yu is Business Development Techno Executive at OptiRisk Systems. She has a PhD in Mathematics from Brunel University. Her research interests are in sentiment analysis, predictive analytics and market microstructure and their applications in financial analytics. In OptiRisk Systems, she conducts client facing applied research; she is also in charge of all aspects of acquiring market data and news metadata. Xiang and Prof. Mitra are co-editors of the “Handbook of Sentiment Analysis in Finance.