Advances in data warehousing and OLAP in the big Data Era

We welcome you to the special issue for the best papers presented at the 16th ACM Data Warehousing and OLAP Workshop 2013 (ACM DOLAP) in Burlingame, CA, USA. DOLAP continues its tradition of being a high quality forum where both researchers and practitioners in data warehousing and On-Line Analytical Processing (OLAP) share their findings on theoretical foundations, current database design methods, new trends and practical experiences. In recent years, research in these areas has addressed many topics, covering all phases of the life cycle of data warehousing applications (user requirements, conceptual phase, ETL, logical phase, deployment phase, physical design, exploitation). However, the successful use of data warehousing and OLAP technologies within organizations has brought up new requirements and research issues, in particular to cope with non-traditional application domains, such as text, blogs, tweets, etc.