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Evaluation and Error Analysis of Rule-based Paraphrase Generation for Czech

In this paper, we present the experiments and evaluation
ofpreviously developed rule-based paraphrasing system for the
Czechlanguage. The system offers several interconnected modules
that allow togenerate paraphrases of an input sentence based on
various criteria such asthe Czech WordNet hierarchy,
word-ordering rules or anaphora resolution.We have evaluated
each module’s accuracy and we offer a detailed analysisof the
results as well as concrete proposals for improvements.