RK. Rao Pattabhi


2023

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Intent Detection and Zero-shot Intent Classification for Chatbots
Lalitha Devi Sobha | RK. Rao Pattabhi
Proceedings of the 20th International Conference on Natural Language Processing (ICON)

In this paper we give in detail how seen and unseen intent is detected and classified. User intent detection has a critical role in dialogue systems. While analysing the intents it has been found that intents are diversely expressed and new variety of intents emerge continuously. Here we propose a capsule-based approach that classifies the intent and a zero-shot learning to identify the unseen intent. There are recently proposed methods on zero-shot classification which are implemented differently from ours. We have also developed an annotated corpus of free conversations in Tamil, the language we have used for intent classification and for our chatbot. Our proposed method on intent classification performs well.

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Coreference Resolution Using AdapterFusion-based Multi-Task learning
Lalitha Devi Sobha | R. Vijay Sundar Ram | RK. Rao Pattabhi
Proceedings of the 20th International Conference on Natural Language Processing (ICON)

End-to-end coreference resolution is the task of identifying the mentions in a text that refer to the same real world entity and grouping them into clusters. It is crucially required for natural language understanding tasks and other high-level NLP tasks. In this paper, we present an end-to-end architecture for neural coreference resolution using AdapterFusion, a new two stage learning algorithm that leverages knowledge from multiple tasks. First task is in identifying the mentions in the text and the second to determine the coreference clusters. In the first task we learn task specific parameters called adapters that encapsulate the taskspecific information and then combine the adapters in a separate knowledge composition step to identify the mentions and their clusters. We evaluated it using FIRE corpus for Malayalam and Tamil and we achieved state of art performance.