Vector of Counts for Second Frequency Moment Estimation
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Solution Overview
Problem
Current media monitoring technologies face inaccuracies in tracking user access to digital media due to tampering of server logs and caching issues, leading to unreliable audience measurement metrics.
Innovation Solution
Implementing a vector of counts methodology to estimate the second frequency moment of media impression data, which involves hashing media exposure elements to populate bins and generate a vector of counts, allowing for precise estimation of repeat rates and resource allocation for query processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If server logs are used to track media access, then media exposure data can be collected, but the data becomes unreliable due to tampering and caching issues
Solution Approach 1:
The patent introduces a third-party monitoring entity that acts as an intermediary between media servers and audience measurement systems. This intermediary collects impression data directly from servers without relying on potentially tampered client-side logs, thereby ensuring data integrity and reliability in media access tracking
Solution Approach 2:
The system creates a copy of the media access data through impression requests that are independently generated and verified. By maintaining parallel records through the monitoring entity's impression collection mechanism, the system can cross-validate data and prevent information loss from server log tampering
2Measurement precision
If traditional panel member monitoring is used, then media exposure can be measured, but the coverage is limited and does not represent the entire population
Solution Approach 1:
The monitoring entity's impression collection system serves multiple functions: it tracks media exposure for the entire population rather than just panel members, provides both measurement and verification capabilities, and works across multiple media types and platforms, thereby achieving universal applicability
Solution Approach 2:
The system uses impression requests as feedback mechanisms that continuously monitor and report media access patterns. This feedback loop enables the system to adapt to changing media consumption behaviors and maintain accurate measurements across the entire population without relying on fixed panel memberships
3Reliability
If comprehensive media access tracking is implemented, then accurate audience metrics can be obtained, but processing power and energy consumption increase
Solution Approach 1:
The patent extracts only the essential information needed for audience measurement - the impression count and basic access metadata - from the full media access data stream. By focusing collection and processing on these key metrics rather than all possible access details, the system maintains measurement reliability while significantly reducing processing energy consumption
Data Source
AI summary
A disclosed example includes at least one memory, programmable circuitry, and instructions to cause the programmable circuitry to increment a first value corresponding to a first position in a vector based on a first bit value representation, the first bit value representation corresponding to a first audience member identifier; increment a second value corresponding to a second position in the vector based on a second bit value representation, the second bit value representation corresponding to a second audience member identifier; estimate the second frequency moment of the media impression data using the vector; determine the variance of the second frequency moment; and based on the second frequency moment, schedule a query of the media impression data to be processed by a computer at a future time.