Modern large-scale scientific simulations, sensor networks, and experiments are generating enormous datasets, with some projects approaching the multiple exabyte range in the near term. Managing and analyzing large datasets in order to transform them into insight is critical for a variety of disciplines including climate science, nuclear physics, security, materials design, transportation, and urban planning. This is currently referred to as the Big Data Challenge. The tools and approaches needed to mine, analyze, and visualize data at extreme scales can be fully realized only if we have end-to-end solutions, which demands collective, interdisciplinary efforts. The Large Scale Data Analysis and Visualization (LDAV) symposium, to be held in conjunction with IEEE VisWeek 2013, is specifically targeting possible end-to-end solutions. The LDAV symposium will bring together domain scientists, data analysts, visualization researchers, users, designers and artists, to foster common ground for solving both near- and long-term problems.