A Survey on Paraphrase Detection and Generation Techniques

Whenever “the same thing,” need to be expressed using different ways or by various alternatives an automated paraphrase generation mechanism would be useful. One reason why paraphrase generation systems have been difficult to build is because paraphrases are hard to define. Although the strict interpretation of the term “paraphrase” is quite narrow because it requires exactly identical meaning, in linguistics literature paraphrases are most often characterized by an approximate equivalence of semantics across sentences or phrases. This paper presents a survey of paraphrase generation techniques for Indian and foreign languages.