Extractive Summarizer Construction Techniques : A Survey

Manual summarization of large documents of texts is tedious and error prone. Also, the results in such kind of summarization may lead to different results for a particular document. Thus, Automatic text summarization has become important due to the tremendous growth of information and data. It chooses the most informative part of text and forms summaries that reveal the main purpose of the given document. It yields summary produced by summarization system which allows readers to comprehend the content of document instead for reading each and every individual document. So, the overall intention of Text Summarizer is to provide the meaning of text in less words and sentences. Summarization can be categorized as: Abstractive summarization and Extractive summarization. This case study is based on an extractive concept implemented on the studied models. Numerous automatic text summarization systems are handy today for English and other foreign languages. But when it comes to Indian languages, we observe inadequate number of automatic summarizers. Evaluation can be done using quantitative or qualitative approach. This paper describes review of techniques used while constructing extractive summarizers and an approach to construct extractive summarizer for Marathi.