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Nielsen Technology: How does it work?

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Damien Pilkington Lewis, Nielsen, Chief Systems Architect

Damien Pilkington Lewis, Nielsen, Chief Systems Architect

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  • 1. UNITAM SYSTEM OVERVIEW Damien Pilkington-Lewis October 2013
  • 2. Copyright ©2012 The Nielsen Company. Confidential and proprietary. UNITAM SYSTEM - OVERVIEW Meters UNITAM-3 meters in the field capture viewing data from each TV and upload it to base UNITAM System Collects data from meters, identifies channels and viewing activities and produces output for production system Production and Reporting Receives output from UNITAM, performs weighting, validation and prepares output for clients Key Points: • Built on 30+ years of TAM experience, including 12 years of experience with audio matching • Delivering daily data in over 20 countries around the world • Comprehensive and flexible, meeting the needs of the most demanding clients • Primary method of channel identification is audio matching • IR hints are used as a secondary method to resolve ties and identify special activities 2
  • 3. Collection & Crediting Collection Meters Copyright ©2012 The Nielsen Company. Confidential and proprietary. UNITAM – PROCESS FLOW IR Key Identification Audio Matching Crediting UNITAM Collection and Crediting Function Collect data from meters in panel Match IR keys against Global DB to identify keys pressed Match audio signatures against references to identify channel Merge data. Apply crediting rules. Identify special activities. Produce output for production system. 3
  • 4. HH 1 Internal FW Production Production Production Collection External FW DMZ LAN TV #1 Production HUB 1 - US Internet TV #2 Nielsen WAN LAN DMZ Production Production Production Collection External FW HH 2 Internal FW Copyright ©2012 The Nielsen Company. Confidential and proprietary. COLLECTION ARCHITECTURE TV #1 Production HUB 2 - Europe IP Based (GPRS) Reliable Secure 4
  • 5. Copyright ©2012 The Nielsen Company. Confidential and proprietary. IR KEY IDENTIFICATION Referencing Field & QC Local teams identify unrecognized IR keys using Quality Control tools. Unrecognized remotes are referenced and sent to GSC. Global Support Center Validates reference data received from countries. If validation rules are passed then add to Global DB Global DB Deployment Updated IR DB is deployed to countries ready to be used in overnight processing Matching Meter IR sensor captures IR, generates IR signatures for each key pressed Collection Collection Facility collects IR signatures, sends to IR matching process IR Matching Process Matches IR signatures from meter with global IR Database to identify keys Output Output is fed into the audio matching and crediting processes 5
  • 6. Copyright ©2012 The Nielsen Company. Confidential and proprietary. AUDIO MATCHING – INTRODUCTION Signature Generation 1001010100101001 1010010010010010 0011001010010100 0010010111001001 1110010100011100 0010110101010001 1001010100101001 1010010010010010 0011001010010100 0011001010010100 Audio Signal 10011101 Digital Stream Signature Matching Audio Matching Process Sampled Content (Households) Reference Content (TV Signals) Viewing Statements 6
  • 7. Copyright ©2012 The Nielsen Company. Confidential and proprietary. AUDIO MATCHING – CHANNEL IDENTIFICATION 100100100 Ch 1 101101101 Ch 2 101010101 Ch 3 . . . Ch 35 010101010 010101010 Household TV set 011011011 Digital Comparison . . . Ch N Reference Database 7
  • 8. Copyright ©2012 The Nielsen Company. Confidential and proprietary. AUDIO MATCHING – CHANNEL IDENTIFICATION Ch 1 010010010001000010101010 Ch 2 100101010010100101001010 010010010010100101001010 Channel 1 Channel 2 Ch ??? 8
  • 9. Copyright ©2012 The Nielsen Company. Confidential and proprietary. AUDIO MATCHING – LIVE VIEWING 10:46:17 Viewing Meter Signatures References Channel 1 Channel 2 Channel 3 Channel 4 … Channel N Live window (usually +/- 20 seconds) 9
  • 10. Copyright ©2012 The Nielsen Company. Confidential and proprietary. AUDIO MATCHING – TSV VIEWING 10:46:17 Viewing Meter Signatures References Channel 1 Channel 2 Channel 3 Channel 4 … Channel N +20 Secs / -7 Days 10
  • 11. Copyright ©2012 The Nielsen Company. Confidential and proprietary. SIMULCAST RESOLUTION – AUDIO MATCHING 010010010001011101001010 Ch A Simulcast Unique Simulcast 010010010110100101001010 Ch B Ch 1 & Ch 2 Same Audio Match Only with Ch 2 Ch 1 & Ch 2 Same Audio 010010010110100101001010 Channel B Ch ??? When there is simulcast (same audio) between multiple channels, we can identify the channel viewed if there is any piece audio content that is unique to 1 of the channels. The unique piece can be as short as a single commercial. 11
  • 12. Copyright ©2012 The Nielsen Company. Confidential and proprietary. SIMULCAST RESOLUTION – UNRESOLVED Channel A Channel B Channel C The future starts here. X A, B or C? Z Ch ??? 12
  • 13. Copyright ©2012 The Nielsen Company. Confidential and proprietary. SIMULCAST RESOLUTION – USING IR KEYS The future starts here. Audio Matching X A, B or C? Z Ch ??? IR Keys 46 + • Almost all channel changes are made using IR keys with a remote control • Even if audio is identical, IR keys present at the channel change time can be examined and used to identify the channel • Nielsen has developed a proprietary algorithm using 9 years of experience of IR crediting to support a wide range of IR activities 13
  • 14. Copyright ©2012 The Nielsen Company. Confidential and proprietary. CREDITING PROCESS Crediting Process IR Keys IR keys pressed by the Panel Member Audio Matching Channels identified by audio matching process Statements TV On, Members etc IR, Audio, Statement Data Merge Meter Data Validation Zapping Identification (Periods when Panel Member is changing channels quickly) Production and Reporting System Teletext Identification (Periods when Panel Member is using a Teletext service) Non-Tracked Activity (NTA) Identification (Program Guide Usage, Mute, Standby, Play/Pause/FF/Rew, Non-Broadcast etc) 14