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19 lines
931 B
Text
19 lines
931 B
Text
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Snowball stemming algorithms, for information retrieval
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Stemming algorithms
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PyStemmer provides access to efficient algorithms for calculating a "stemmed"
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form of a word. This is a form with most of the common morphological endings
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removed; hopefully representing a common linguistic base form. This is most
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useful in building search engines and information retrieval software;
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for example, a search with stemming enabled should be able to find a document
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containing "cycling" given the query "cycles".
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PyStemmer provides algorithms for several (mainly european) languages, by
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wrapping the libstemmer library from the Snowball project in a Python module.
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It also provides access to the classic Porter stemming algorithm for english:
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although this has been superceded by an improved algorithm, the original
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algorithm may be of interest to information retrieval researchers wishing
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to reproduce results of earlier experiments.
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