• Vaibhav Mishra
• Dr. Nitesh Khilwani
• Dr. Mohammad Muazzam

Abstract Determining the similarity among words, sentences, passages and documents is a key component in several tasks such as (IR) information retrieval , word-sense disambiguation (WSD), short answer grading, document clustering, machine translation , answer selection in QAS and text summarization. In this paper we discusses the existing works based on text similarity by dividing them into three approaches; Character-Sequence based, GoW based and Knowledge based similarities. Apart form that , samples of combination among these similarities are also presented.

Text Mining , Text Similarity, Natural Language Processing, Question Answering System, Semantic Similarity, Character-Sequence Based Similarity, GoW-Based Similarity, Knowledge-Driven Similarity

"A Survey Based On Sentence Similarity Techniques and Approaches", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.1810-1818, April-2019, Available :http://www.jetir.org/papers/JETIR1904S64.pdf

"A Survey Based On Sentence Similarity Techniques and Approaches", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp1810-1818, April-2019, Available at : http://www.jetir.org/papers/JETIR1904S64.pdf