Stemming

In 1968 Julie Beth Lovins published the first known stemming algorithm. This algorithm had a great influence on the further development of stemming algorithms. A later stemmer was published by Martin Porter in 1980. This stemmer became the de facto standard for stemming English-language texts. Porter received the Tony Kent Strix Award in 2000 for his work in the field of stemming algorithms and information retrieval.

Many implementations of the Porter stemming algorithm have been written and distributed for free, but many of them contained small bugs. As a result, these stemmers never reached their full potential. To eliminate this source of error, Porter published an official implementation of the algorithm around the year 2000. In the following years, he expanded his work by creating a framework for writing stemming algorithms using Snowball. He also created an improved stemmer for the English language together with stemmers for other languages.

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