Comparison and Analysis of Two Approaches to Find Novel Documents out of Several Documents

Novelty detection system is used to extract documents with new or novel information from list of documents. Without looking for lot of redundant information, we can get useful information in a limited time. Cosine similarity and Language modeling are the two emerging techniques of information retrieval in today’s scenario. The current study performs the analysis and comparison between these two models. Keywords Cosine similarity, Information retrieval, Language modeling, Novelty detection, Smoothing