Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Text Mining Slides
Document related concepts
no text concepts found
Transcript
Text Mining Supplemental Resources on Class Website Big Data Concept Map Text Mining Design: Accuracy Relative Cell References Data Mining Implementation Import Search, Left, Right, Mid, Len, & Objectives ▪Define Big Data, Text Mining and Data Mining ▪Demonstrate Excel features that support text mining. Facebook Users ▪1.28 billion users worldwide ▪802 million users login daily (up 21%) ▪67% of Internet users are on FB ▪50% of 18-24 year olds login when they wake up ▪45-54 year old age group has grown 46% Facebook Content ▪4.5 billion likes daily (up 67%) ▪30 million photos uploaded daily ▪1 in 5 page views in US ▪36% users post brand-related content on their walls King of Social Media ▪FB accounts for 66% of social media sharing on iPhones ▪Users with income over $75,000 Facebook Twitter Pinterest 73% 17% 13% Facebook & e-commerce ▪10 million registered small businesses ▪Drives 26% of referral traffic to ecommerce sites ▪20% of shoppers prefer buying thru FB vs. e-commerce website ▪58% of businesses see a drop in marketing costs when moving to FB Big Data ▪Data sets too large to process with traditional database technology https://www.ted.com/talks/ kenneth_cukier_big_data_is_ better_data Data Mining Tools ▪ software that searches through data ▪ uses complex statistical calculations ▪ outputs ▪ Trends ▪ Patterns ▪ Correlations ▪ Exceptions Nestle ▪Nestle processes Social Media http://uk.reuters.com/article/video/idUKBRE89P07Q20 121026?videoId=238680321 Import ▪Access data not formatted as an Excel document ▪File type = txt or csv Import – Step 1 ▪ File, Open, File type = All files http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html Import – Step 2 http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html Import – Step 3 ▪ Save As File type = Excel Worksheet http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html Text Mining ▪ Search ▪ SEARCH ▪ Parse ▪ LEFT, MID, RIGHT, LEN ▪ Concatenate ▪& SEARCH Function http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html LEFT Function http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html LEN or Length Function http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html RIGHT Function http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html MID Function http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html Concatenate ▪& is the concatenate symbol ▪Quotes are required around constant strings of text http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html Relative Cell Addressing ▪Relative is the default ▪When you copy a relative cell reference the reference will change depending on the direction and magnitude of the copy. Copy Formula with Relative Cell Addresses Paste Special - Values MAC: Edit Menu, Paste Special http://www.lacoste.pamplin.vt.edu/web1504/resources/video/ss.html
Related documents