Our method
Six steps, run on the project’s computing infrastructure, turn each video into an analysable format. Follow each step below to see how it works in detail: the models used, the decision thresholds and the reliability indicators.
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01
Detect
The channels’ feeds are read every six hours, their full list every week. The videos of the last seven days go ahead of everything else.
The detail -
02
Extract
The video, its metadata and its comments are extracted. The audience is measured again at day 1, 7 and 30, then every month.
The detail -
03
Transcribe
The voice is isolated from the music, speakers told apart, speech transcribed in the language spoken, then cut into sentences.
The detail -
04
Classify
Each sentence is classified as political or not, then assigned to nine themes by nine classifiers whose reliability is published.
The detail -
05
The people named
The public figures, parties and media of a closed list are recognised in the sentences and counted video by video.
The detail -
06
Summarise
A local language model writes the record of each video of the week, checked against the transcript, then the synthesis and the arguments.
The detail -
07 · Around the steps
The corpus
Three countries, seven orientations, the channels chosen and coded by the team.
The detail -
08 · Around the steps
The eleven steps
The full diagram, from the task queue to publication, step by step.
The detail -
09 · Around the steps
Arguments by theme
A model reads a sample of each theme’s sentences and draws out the arguments.
The detail -
10 · Around the steps
Vanished videos
The removal is noticed, dated, explained when the platform says why; the record stays.
The detail -
11 · Around the steps
Coverage and limits
What is transcribed, what is not yet, the known limits, the corrections log.
The detail