Raphaël Clifford graduated from Oxford University in 1995 and completed his Ph.D. under the supervision of Marek Sergot at Imperial College London. His early work focused on combinatorial pattern matching problem. He now works on streaming algorithms and on conditional and unconditional lower bounds for data structure problems.

Markus Jalsenius completed his Ph.D. in Computer Science at the University of Liverpool in 2008 under the supervision of Leslie Ann Goldberg and has been a Research Associate at both the University of Liverpool and the University of Bristol. Markus is now working as a Data Scientist at Telia Company. The present work was completed while Markus was working at the University of Bristol.

Benjamin Sach completed his Ph.D. in Computer Science at the University of Bristol in 2011 under the supervision of Raphaël Clifford. He was an EPSRC fellow at the University of Warwick and subsequently a Lecturer at the University of Bristol. Ben now works as a Data Scientist with the Alan Turing Institute. The present work was completed while Ben was working at the University of Bristol.