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Webinar recap: Pixalate's data science team discusses the Publisher Trust Index methodology

Jun 28, 2021 3:30:00 PM

Pixalate recently hosted a webinar with members of its data science team to discuss the methodology behind Pixalate's Publisher Trust Index, which ranks the overall quality of mobile and CTV app publishers for programmatic advertising.

Webinar speakers included:

Full Webinar: Pixalate's Publisher Trust Index Methodology

 

The metrics behind the Publisher Trust Index

Angelos Lazaris, Pixalate's Chief Data Scientist, said one of the key challenges the team had to solve for when building the Publisher Trust Index was the Curse of Dimensionality.

"The essence of it is that when you add a lot of data points, the differences become very marginal, and it's also very hard to say who is doing better and to measure distances in such a high-dimensional space. We resolved that by trying to find the most informative number of metrics we could use that fit a specific ecosystem, like mobile or CTV, that give enough information to separate publisher from each other."

In the webinar, Pixalate's data science team dives into the logic behind choosing specific metrics for the Publisher Trust Index rankings. They also explain the methodology behind each metric, including:

  • Popularity Score
  • Invalid Traffic (IVT) Score
  • Ad Density Score
  • User Engagement Score
  • App-Ads.txt Score
  • Brand Safety Score
  • Permissions Score
  • Viewability Score

Read the detailed Publisher Trust Index methodology

In addition to listening to Pixalate's data science team overview the methodology (and the though process behind each metric) in the webinar, you can also read the published Publisher Trust Index methodology here.

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Disclaimer

The content of this blog, and the Publisher Trust Indexes (collectively, the “Indexes”), reflect Pixalate’s opinions with respect to factors that Pixalate believes may be useful to the digital media industry. The Indexes examine programmatic advertising activity on mobile apps and Connected TV (CTV) apps (collectively, the “apps”). As cited in the Indexes and referenced in the Indexes’ key findings reproduced herein, the ratings and rankings in the Indexes are based on a number of metrics (e.g., “Brand Safety”) and Pixalate’s opinions regarding the relative performance of each app publisher with respect to the metrics. The data is derived from buy-side, predominantly open auction, programmatic advertising transactions, as measured by Pixalate. The Indexes examine global advertising activity across North America, EMEA, APAC, and LATAM, respectively, as well as programmatic advertising activity within discrete app categories. Any insights shared are grounded in Pixalate’s proprietary technology and analytics, which Pixalate is continuously evaluating and updating. Any references to outside sources in the Indexes and herein should not be construed as endorsements. Pixalate’s opinions are just that, opinions, which means that they are neither facts nor guarantees; and neither this press release nor the Indexes are intended to impugn the standing or reputation of any person, entity or app.

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