Invited Articles Foreword

Abstract

The Invited Article section of this issue consists of two papers. The article “Parallel-Correctness and Transferability for Conjunctive Queries” by Tom J. Ameloot, Gaerano Geck, Bas Ketsman, Frank Neven, and Thomas Schwentick was invited from the 34th Annual ACM Symposium on Principles of Distributed Computing (PODC’15). The article “An Average-case Depth Hierarchy Theorem for Boolean Circuits” by Johan Håstad, Benjamin Rossman, Rocco A. Servedio, and LiYang Tan won a best paper award at the 56th Annual Symposium on Foundations of Computer Science (FOCS’15). We thank the PODC’15 and FOCS’15 Program Committees for their help in selecting these invited articles, and we thank editors Georg Gottlob and Avi Widgerson for handling the articles.