Word Clustering for Data Sparsity: A Literature Survey

In this report, we present the literature survey done for our work with SA and other NLP applications. The road map of this report is as follows. In Section-1, we introduce clustering process and describe a few existing word clustering techniques. Section-2 talks about the smoothing process followed by why clustering is better for our work in Section-3. Finally in Section-4, we talk about the related work done for different NLP applications in which word clusters are used as helpful features.