2. The index generator of claim 1, wherein the inflectional analyzer includes a finite-state morphological transducer and a lexicon containing all possible transitions between base and inflected forms, the morphological transducer employing morphological information contained in the lexicon to analyze the corpus in producing the lemmatized corpus.
2. The index generator of claim 1, wherein the inflectional analyzer includes a finite-state morphological transducer and a lexicon containing all possible transitions between base and inflected forms, the morphological transducer employing morphological information contained in the lexicon to analyze the corpus in producing the lemmatized corpus. 3. The index generator of claim 2, wherein the disambiguator includes a part of speech tagger to tag each word in the lemmatized corpus with its part of speech.