Martin Porter

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Martin F. Porter is the inventor of the Porter Stemmer,[1] one of the most common algorithms for stemming English,[2][3] and the Snowball programming framework. His 1980 paper "An algorithm for suffix stripping", proposing the stemming algorithm, has been cited over 8000 times (Google Scholar).[4]

The Muscat search engine comes from research performed by Porter at the University of Cambridge and was commercialized in 1984 by Cambridge CD Publishing; it was subsequently sold to MAID which became the Dialog Corporation.[5]

In 2000 he was awarded the Tony Kent Strix award.[6]

Porter read mathematics at St John’s College, Cambridge (1963–66) and went to get a Diploma in Computer Science (1967) and a PhD. at Cambridge Computer Laboratory. He worked at the University of Leeds for a year before returning to Cambridge's Literary and Linguistic Computing Centre (1971-1974) and at the Sedgwick Museum as a programmer (1974-1976). In 1977, he became the Director of the Museum Documentation Advisory Unit (MDA).[7]

Martin Porter is co-founder with John Snyder of the contextual targeting and content recommendation company, Grapeshot.[8] John Snyder is listed as CEO and Martin Porter is listed as Chief Scientist. Grapeshot took £250,000 in UK government subsidies and subsequently raised £16m from UK investors.[9] On May 15, 2018, Oracle Corporation completed the acquisition of Grapeshot.


  1. ^ Porter Stemming Algorithm
  2. ^ Christopher D. Manning, Prabhakar Raghavan and Hinrich Schütze (2008). Introduction to Information Retrieval. Cambridge University Press.
  3. ^ Daniel Jurafsky and James H. Martin (2009). Speech and Language Processing. Pearson, p. 102.
  4. ^ Articles at Google Scholar, accessed 2012-02-09.
  5. ^ Avi Rappoport, Search Tools Consulting. "Smartlogik Discover (APR) - SearchTools Report". Retrieved 2012-02-09.
  6. ^ UKeiIG Tony Kent Strix Award Archived 2014-09-25 at the Wayback Machine (Accessed Feb 2012)
  7. ^ Museum, Vol XXX, n° 3/4, 1978, Museums and Computers p.224
  8. ^ Grapeshot (Accessed Oct 2012)
  9. ^ [1] Parliamentary Review 2018 - Grapeshot

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