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Main article: Technical overview of the ratings system
Aggregation refers to the way we combine the opinions of others to obtain a final value of the opinion. A poll which takes the sum of each person's candidate preference in an election and then calculates the percentage for each candidate is an aggregation technique.
A number of aggregation techniques are possible. A few are listed here:
- Bayes' equation with a simple example of its use.
- Simple averaging.
- Trust weighted averaging.
- Techniques for binned and continuous distributions.
- Trust-weighted histograms.
- Population distributions and privacy considerations.