WPS Office W Assignment 4...ap + SVD (1) 2 X + Menu Home Insert Page Layout References Mailings Review View Section Special features X Cut Times New Romi * 11 AaBbCcDd AaBbCcDd =A Q Paste _ Copy Format BIUA XXALAS= = & Placehol.. Default New Style Word Typesetting Find and Select Setting Painter Replace Due date: 10/25/2022 (by 11.59 pm ET) Q1. Explain the meaning-relevance-importance of the following in Text Analytics . Tokenization b. Stop Word Removal Stemming d. POS Tagging (Please google and find out) e. TF-IDF Matrix f Lexicon-Vader Q2. Take your blog and do the following: 1. Implement SVD. What is the percentage of variance explained using 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 vectors ( draw a plot with number of vectors as the x-axis and the cumulative percentage of variance explained as the y-axis)? Please make sure that you keep the following setting: Parameters ISVD (Singular Value Decomposition) dimensionality reduction keep percentage percentage threshold 1.0 2. What is the minimum number of vectors that you need to have at-least 50% of information content in the TF-IDF matrix? 3. How much information are you likely to lose if you only select the first three vectors? 4. Take the first two vectors and develop a scatterplot of the words in 2D in Excel or RapidMiner. 5. Take the first two vectors and develop a scatterplot of the documents in 2D in Excel or RapidMiner. Please provide a screen canture of the RanidMiner Process Window Page Num: 1 Page: 1/1 Section: 1/1 Row: 20 Column: 2 Words: 180 Spell Check Local backup on 123% V - O +