www.sti-innsbruck.at © Copyright 2008 STI INNSBRUCK www.sti-innsbruck.at
Media Metrix
Simon Hangl
www.sti-innsbruck.at
Motivation
• Scenarios– Want to measure reach of a page along properties
• Age• Location
– Want to check popularity of business category• Shopping• In November• In the USA
– Want to get statistics about business sector• i.e. How much money was been made in online shopping• i.e. Did this market grow?
2
www.sti-innsbruck.at
Solution? MediaMetrix!
• Framework for Measuring Web Traffic– Most used tool– Demographic Information about users– Provides Reports along several properties– Reports available for
• 41 countries, 6 global regions, world wide totals
– Big data source– Sophisticated Statistics under the hood (very precise)
3
www.sti-innsbruck.at
How does it work?
• Using Samples• Data Collection
– Calibration Panel• Recruit users to observe their internet behavior• Offline Recruiting (i.e. random digital dialing)• Distinct Panels for Work and Home
– Enumeration Surveys • 1100 interviews per month• demographic information collected• RDD
• Measuring– Collecting Demographic Information from users– Measuring EVERYTHING (also secured https connections – such as banking
connections)– Why should somebody do that? (internet storage, security software, winning cash
prizes)– Some people do not even know
4
www.sti-innsbruck.at
How does it work? (2)
• Estimation of Universe– Enumeration Interviews and Calibration Panel used to remove bias
• Weighting Algorithm– Recruitment open to everyone – might influence statistics– Some users might not be honest– Use statistics to compute appropriate weights for visits– Such that each segment of population is adequately represented
5
www.sti-innsbruck.at
Example
• User statistics in November 2011– Locations (Home, Work, University)– Type of pages (all, shopping, …)– Subtypes (i.e. shopping Toys, Electronics,…)– Range of Advertisement– See example
6
www.sti-innsbruck.at
How precise is it?
7
www.sti-innsbruck.at
Extensions to Core Reports
• Ad Metrix: Advertisement Success• qSearch: Search Behavior• Mobile Metrix: Mobile Traffic Statistics• Video Metrix: Data about video usage• Plan Metrix: Information about lifestyle, interests, preferred products,…
of users
8
www.sti-innsbruck.at
Relation to OC Work
• Problems to apply this• Reimplementation
– Very high cost– 2006: 545 servers, 280 terabytes of data, 1100 interviews per month
• Reuse– Granularity probably not high enough (20,000 online entities in database – not
enough?)
9
www.sti-innsbruck.at
Sources
• http://www.comscore.com/Products_Services/Product_Index/Media_Metrix_Suite/Media_Metrix_Core_Reports
• http://www.comscore.com/ger/Products_Services/Product_Index/Media_Metrix_Suite
• http://www.mmetrics.com/ger/Press_Events/Press_Releases/2011/12/comScore_Media_Metrix_Ranks_Top_50_U.S._Web_Properties_for_November_2011
• http://thearf-org-aux-assets.s3.amazonaws.com/downloads/research/comScore-RReview.pdf
• http://en.wikipedia.org/wiki/ComScore
10