Abstract

A chatbot is a software that can reproduce a discussion portraying a specific dimension of articulation among people and machines utilizing Natural Human Language. With the advent of AI, chatbots have developed from being minor guideline-based models to progressively modern models. A striking highlight of the current chatbot frameworks is their capacity to maintain and support explicit highlights and settings of the discussions empowering them to have human interaction in real-time surroundings. The paper presents a detailed database concerning the models utilized to deal with the learning of long haul conditions in a chatbot. The paper proposes a novel crossbreed Long Short Term Memory based Ensemble model to retain the information in specific situations. The proposed model uses a characterized number of Long Short Term Memory Networks as a significant aspect of its working as one to create the aggregate forecast class for the information inquiry and conversation. We found that both of the ensemble methods LSTM and GRU work well in different dataset environments and the ensemble technique is an effective one in chatbot applications.

Highlights

  • A Conversational Agent is otherwise called ‘Chatbot’ is a software program which leads a discussion by means of sound-related or literary strategies in a characteristic language, for example, English

  • Contribution Artificial Neural Network (ANN) Simple Recurrent Neural Network (RNN) Ensemble Learning The issue with long term dependencies Long Short Term Memory ( Long short-term memory (LSTM)) LSTM with forget gates Gated Recurrent Unit (GRU) Neural Turing Machine (NTM)

  • Gated recurrent unit (GRU) can be used in applications related to time series prediction like text generations, classification, etc NTM is well suited for models with massive and more extended sequences of data

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Summary

Introduction

A Conversational Agent is otherwise called ‘Chatbot’ is a software program which leads a discussion by means of sound-related or literary strategies in a characteristic language, for example, English. Eliza was considered to be the first-ever chatbot to simulate a psychotherapist, in the 1960s It was capable of establishing a dialogue, simulating a human being, his virtual model was based on rephrasing the user input whenever a collection of hand-crafted infusions matched. Eliza was not designed to model human cognitive capabilities; it demonstrated how software could create a significant impact through the mere illusion of comprehension. Contribution Artificial Neural Network (ANN) Simple Recurrent Neural Network (RNN) Ensemble Learning The issue with long term dependencies Long Short Term Memory ( LSTM) LSTM with forget gates Gated Recurrent Unit (GRU) Neural Turing Machine (NTM). – Machine Learning Model: The concept of Artificial Neural Network is extensively employed in dealing with input processing, classification and generating the most appropriate response for the input query. The hybrid RNN-Seq2Seq model has progressed to become a popular choice in chatbot architecture [3]

Artificial neural networks
Ensemble learning
Data source
Data preprocessing
Proposed method
Training phase
Testing phase
Performance analysis
Mean squared error analysis
Average loss calculation
Training time comparison
Comparison between LSTM and Ensemble LSTM
Comparison between GRU and Ensemble GRU
Comparison between Ensemble LSTM and Ensemble GRU
Findings
Conclusion

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