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as well as the significance and the envisaged consequences of such processing
for the data subject. 47
55. The National Institute of Standards and Technology summarizes the scope of
this principle in the following chart: 48
56. The following table explains the most relevant aspects of each principle
according to the National Institute of Standards and Technology document: 49
Principle
Meaning or scope
Explanation
Evidence, support or reasoning related to outputs and/or processes of an
[artificial intelligence] system.
Meaningful
Explanation in terms that are understandable to the intended consumer. In
other words, this principle seeks to make the explanation comp rehensible
for a given audience. Many factors affect a good explanation, which is
why the target audience or audience to which the explanation is addressed
must be taken into account.
Explanation Accuracy
This principle requires the technical explanation to be rigorous, accurate
and comprehensive.
Knowledge Limits
Identifying and declaring the limits of knowledge implies making it clear
that the system is neither perfect nor infallible because the [artificial
intelligence] operates within certain limits and constraints within which it
has been programmed. They also depend on the quality and quantity of
information processed, among other factors.
57. It has been argued that the explanation must: (a) “be understandable and
convincing to the user”; (b) “accurately reflect the system’s reasoning”; (c) “be
comprehensive”, and (d) “be specific in the sense that different users with different
__________________
47
48
49
23-15851
Ibid., art. 15 (1).
National Institute of Standards and Technology, Four Principles of Explainable Artificial
Intelligence, - NISTIR 8312 (2021), p. 3. Available at https://doi.org/10.1017/bhj.2023.10.
The explanation in the table is an adaptation and summary of the original English text cited and
available at https://doi.org/10.6028/NIST.IR.8312.
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