Abstractive Text Summarization using Recurrent Neural Network with Attention Based Mechanism
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Department of Computer Science & Information Technology
Abstract
To facilitate the task of reading and searching information, it became necessary to find a way
to reduce the size of documents without affecting the content of original document. The
solution to this problem is abstractive text summarization system. Abstractive means that they
are not restricted to simply selecting and rearranging passages from the original text. It is an
automated system which takes an input text to produce another shorter version of given source
documents without losing relevant data and meaning conveyed by the original text maintaining
its semantic and grammatical correctness. This research aims to propose the RNN Encoder
Decoder model with LSTM using attention mechanism for abstractive summarization to
generate the summary carrying meaningful representation of the source document. ROUGE
metric has been calculated to evaluate the summaries generated by the model run in 64 batch
size with 256 hidden unit forming one layer.ROUGE1 and ROUGE2 score has been calculated
among different metrics. The average ROUGE1 score obtained for validation data is 17.60 and
ROUGE2 is 1.65.