key: cord-0075014-j8t115zp
authors: Rustem, Berç; Parpas, Panos
title: In Memoriam: Nicos Christofides (1942–2019)
date: 2022-02-24
journal: Oper
DOI: 10.1007/s43069-021-00091-y
sha: 7050c8d24256bda904911c1826a15d6a0a9a1398
doc_id: 75014
cord_uid: j8t115zp

nan

During the 1980's, he worked extensively on algorithms for image compression to allow images to be stored using a fraction of the memory that would be needed to store the actual image. He produced a successful system and worked extensively on improving its speed. He consulted for many industries, including oil and gas, telecoms as well as NASA and CDC in USA.

In 1990, Nicos established with Gerry Salkin the Centre for Quantitative Finance (CQF). The focus of CQF was to train PhD students in quantitative finance and risk management with a focus on real world problems. He developed a very effective forecasting system that was useful in his academic work as well as in his collaborations with industry and the finance sector. One of Nicos' amazing achievements is that he has supervised in excess of 220 PhD students.

Nicos was excellent company. He had wide knowledge of art, politics, science, as well as food and drink. He was an excellent lecturer at conferences, with a unique ability for explaining mathematically complex problems and make extremely hard solutions seem easy. He used to take his academic responsibilities extremely seriously even after retirement. Nicos became Professor Emeritus of Quantitative Finance at Imperial College London, having retired from Imperial in 2009. He remained active after retirement but was deeply affected by the loss of his wife Ann in 2018. He passed away a year later. Those who knew him miss him greatly.

The online version contains supplementary material available at https:// doi. org/ 10. 1007/ s43069-021-00091-y.

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