Yahoo! Ricardo Baeza-Yates is VP of Yahoo! Research for Europe and Latin America, leading the labs at Barcelona, Spain and Santiago, Chile. Previously full professor at Univ. of Chile and ICREA research professor at UPF in Barcelona. Co-author of Modern Information Retrieval (Addison-Wesley, 1999) among other books and publications. Member of the ACM, AMS, IEEE (Senior), SIAM and SCCC, as well as the Chilean Academy of Sciences. Awards from American Organization States, Institute of Engineers of Chile, and COMPAQ. His research interests includes algorithms and data structures, information retrieval, web mining, text and multimedia databases, software and database visualization, and user interfaces.