Jonathan Vivian Rosenhead (born 21 September 1938) [1] is a British mathematician, operational researcher and Labour Party activist. [2]
Jonathan Rosenhead is the son of mathematician Louis Rosenhead. [1] He studied at the University of Cambridge (St. John's College) where he received a B.A. degree in mathematics in 1959. [2] He continued his studies at University College London where he received an M.Sc. degree in statistics in 1961, and an M.A. from Cambridge in 1963. He worked as an operational researcher at United Steel Companies in Sheffield in 1961-63 and at Science in General Management Ltd. (SIGMA) in Croydon in 1963-66 before returning to the academic world.
Rosenhead spent 1966-67 at the Wharton School of the University of Pennsylvania and its Management Science Centre, where Russell L. Ackoff was professor. In 1967 he joined the London School of Economics as a lecturer in operational research. He became a senior lecturer in 1981 and professor of operational research in 1987. [2] He retired in 2003.
Within operational research (OR), Rosenhead is primarily associated with the development of "soft OR" from the late 1970s, which resulted in the development of a number of new OR methods. He was the editor of the first book to gather a number of problem structuring methods within one volume, Rational analysis for a problematic world, published in 1989. [3]
He was president of the Operational Research Society in 1986-87.
Rosenhead was a Labour Party candidate for Kensington South at the 1966 general election. [2] [4] His candidacy was endorsed by notable local residents, including playwright Keith Waterhouse, designer Misha Black, writer Baroness Stocks, architect Sir Hugh Casson, writer Brigid Brophy and novelist Lord Snow. [4] However, Rosenhead came a distant second to the Conservatives, who held the seat with a large majority. [5]
He was active in the British Society for Social Responsibility in Science over a 20-year period, including a stint as chair of the society. His political activities has included being chairman of the British Committee for the Universities of Palestine (BRICUP) and being information officer for Jewish Voice for Labour.
Rosenhead was involved in the campaign against South African apartheid. He was arrested at a May 1972 demonstration against the English rugby team which was departing for a tour in South Africa. He was convicted of a public order offence and fined. In 2020, Rosenhead learned that a fellow protester, who was also arrested at the demonstration, was an undercover police officer working in the Special Demonstration Squad. [6] The fact that the police had told neither the defence nor the court about the officer made the convictions a miscarriage of justice. Rosenhead and several others had their convictions quashed in 2023. [7]
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Problem structuring methods (PSMs) are a group of techniques used to model or to map the nature or structure of a situation or state of affairs that some people want to change. PSMs are usually used by a group of people in collaboration to create a consensus about, or at least to facilitate negotiations about, what needs to change. Some widely adopted PSMs include
Ailsa Horton Land was a Professor of Operational Research in the Department of Management at the London School of Economics and was the first woman professor of Operational Research in Britain. She is most well-known for co-defining the branch and bound algorithm along with Alison Doig whilst carrying out research at the London School of Economics in 1960. She was married to Frank Land, who is an Emeritus Professor at the LSE.