Knowledge Graph Sensor

Knowledge Panel

Knowledge Graph Sensor

Here we are measuring the volatility of Google's Knowledge Graph. The data clearly shows periodic data refreshes or algorithm updates - almost certainly both.

Read my analysis of this on Search Engine Journal >>

How are we Measuring Knowledge Graph Changes?

We have a system that tracks the confidence score returned by the Knowledge Graph API on a dataset of several thousand known Entities. We have isolated the three aspects of these changes and measure them daily. We measure:

  1. Magnitude: How many entities saw an increase or decrease (reach/breadth).
  2. Amplitude: How significant that change, in confidence scores of the affected entities, was on a micro-level (scope/height).
  3. Shift: How significant the change was to the overall score (scale/depth).
The graph below shows Magnitude (Volatility) in purple, and Shift in red. Amplitude is a measurement we are using internally and won’t be adding that in the foreseeable future.

Knowledge Graph Algorithm Updates

  • Friday 29 October 2021
  • Tuesday 9 November 2021
  • Friday 12 November 2021
  • Wednesday 17 November 2021
  • Thursday 18 November 2021
  • Saturday 20 November 2021
  • Thursday 25 November 2021
  • Friday 26 November 2021
  • Wednesday 8 December 2021
  • Thursday 9 December 2021
  • Tuesday 14 December 2021
  • Wednesday 15 December 2021
  • Thursday 16 December 2021
  • Friday 17 December 2021
  • Thursday 6 January 2022
  • Friday 7 January 2022
  • Monday 10 January 2022
  • Thursday 20 January 2022
  • Friday 21 January 2022
  • Wednesday 9 February 2022
  • Thursday 10 February 2022
  • Tuesday 26 April 2022

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