Examples:
mapping a plural noun to its singular form: children –> child, boxes —> box
mapping comparative and superlative of adjectives and adverbs to their basic form
mapping verb ….
I once found an open source resource to achieve it. As I remember, it is a datasheet?/spreadsheet?/database? of the mapping. Does anyone know the open source resource, or any alternative/better solution?
I’m coding in java.
That is called stemming and Lucene (specifically snowball contrib) can do that.
There is a number of different stemming algorithms.