Margaret Masterman

Margaret Masterman (4 May 1910 – 1 April 1986) was a British linguist and philosopher, renowned for her pioneering contributions to computational linguistics and machine translation. She was the founder and director of the Cambridge Language Research Unit (CLRU). Masterman attended lectures by Ludwig Wittgenstein and her notes, along with those of others, were compiled as 'The Blue Book'. In 1955, Masterman established the CLRU, which became a significant research center in computational linguistics. The unit, though operating outside the official university structure, conducted influential research in machine translation, computational linguistics, and even quantum physics, attracting significant funding from US and UK agencies. Its impact is evidenced by three CLRU alumni receiving Lifetime Achievement Awards from the Association for Computational Linguistics. Masterman's research anticipated many current ideas in artificial intelligence and machine translation, particularly her emphasis on language's coherence and redundancy. She believed that language analysis should consider repetitive structures and that writers often reiterate the same ideas. This led her to explore the role of rhythm, stress, and breath in language processing, though her views were ahead of their time and challenged by prevailing linguistic theories. Her work on semantics was influenced by R. H. Richens, focusing on semantic primitives and pattern matching. However, Masterman maintained a Wittgensteinian skepticism about the ability of limited sublanguages to represent the entirety of natural language. She advocated for empirical criteria in discovering semantic primitives and emphasized their functional role in resolving ambiguity and as an interlingua for machine translation. Masterman also explored the potential of thesauri as a formal structure for semantic relations and was influenced by Michael Halliday's ideas on the semantic or pragmatic nature of syntactic theory. She examined Chinese ideograms, believing they offered empirical insights into problems Wittgenstein had raised concerning the picture theory of truth. The CLRU's approach, particularly its use of a thesaurus for semantic operations, is considered its major contribution. Despite limited computing resources, the unit produced substantial publications. Masterman's initiative in machine translation, though initially met with skepticism, is now recognized as a valuable endeavor that advanced the field. Masterman was also a co-founder of Lucy Cavendish College, Cambridge, and served as its first Vice-President. Additionally, she founded the Epiphany Philosophers, a group focused on the intersection of science, religion, and religious practice. In 1965, Masterman presented a critique of Thomas Kuhn's 'The Structure of Scientific Revolutions', highlighting the inconsistent use of the term 'paradigm'. Her analysis contributed to the refinement of Kuhn's concept and its subsequent shift towards 'Incommensurability'.