SarcasmBot: An open-source sarcasm-generation module for chatbots

Sarcasm detection is a recent innovation in sentiment analysis research. However, there has been no attention to sarcasm generation. We present a sarcasm-generation module for chatbots. The uniqueness of ‘SarcasmBot ’ is that it generates a sarcastic response for a user input. SarcasmBot is a sarcasm generation module that implements eight rule-based sarcasm generators, each of which generates a certain type of sarcastic expression. One of these sarcasm generators is selected at run-time, based on properties of user input such as question type, number of entities, etc. We evaluate our sarcasm-generation module in two ways: (a) a qualitative evaluation on three parameters: coherence, grammatical correctness and sarcastic nature, where all scores are above 0.69 out of 1, and (b) a comparative evaluation between SarcasmBot and ALICE, where a majority of our human evaluators are able to identify the output of SarcasmBot among two outputs, in 70.97% of test examples.