ACM Transactions on Database Systems (TODS) is a prestigious publication for computer scientists working in the area of data management. In this increasingly multi-faceted and rapidly evolving area, TODS aims to publish high-quality and influential results that represent a fusion of theory and practice. In doing so, TODS provides insights into the thoughts of the best minds in database research.TODS covers the management of structured and unstructured data, including text and XML data; spatial and temporal data; multimedia data; scientific data; graph data; sensor data; uncertain data; streaming data.Topics include, but are not limited to, the following aspects of database systems: data modeling and semantics, database design; data models and query languages; query processing and optimization; analytics, aggregation, warehousing, OLAP; storage, physical database design; access methods and indexing; transaction management and processing; data integration; security, privacy, authentication, provenance, and trust; cloud computing; data management applications and infrastructures; systems architectures; distributed data management; and in-memory data management.