Text Mining Supplemental Resources on Class Website

Concept Map Text Mining Big Data Implementation Relative Cell References Design: Accuracy Import Search, Left, Right, Mid, Len, & Data Mining

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 year olds login when they wake up ▪ 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 Facebook73% Twitter17% Pinterest13%

Facebook & e-commerce ▪ 10 million registered small businesses ▪ Drives 26% of referral traffic to e- commerce 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

▪ Data sets too large to process with traditional database technology kenneth_cukier_big_data_is_ better_data Big Data

Data Mining Tools ▪ software that searches through data ▪ uses complex statistical calculations ▪ outputs ▪ Trends ▪ Patterns ▪ Correlations ▪ Exceptions

Nestle ▪ Nestle processes Social Media ?videoId=

Import ▪ Access data not formatted as an Excel document ▪ File type = txt or csv

Import – Step 1 ▪ File, Open, File type = All files

Import – Step 2

Import – Step 3 ▪ Save As File type = Excel Worksheet

Text Mining ▪ Search ▪ Parse ▪ Concatenate ▪ SEARCH ▪ LEFT, MID, RIGHT, LEN ▪&▪&

SEARCH Function

LEFT Function

LEN or Length Function

RIGHT Function

MID Function

Concatenate ▪ & is the concatenate symbol ▪ Quotes are required around constant strings of text

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