Media item validation

A method of validating a media item, comprising:

• for each of a plurality of sensors that sense a media item, determining, by a processor of a media validator, a respective validation score F indicating a likelihood that the sensed media item is valid;
• determining, by the processor, if the media item is valid responsive to the plurality of validation scores by using a fuzzy logic approach rather than a voting-based approach;
• comparing each respective validation score F to at least one predetermined threshold τ to generate a threshold result;
• and
• responsive to said threshold result, determining a modified validation score x for each of said sensors;
• and
• applying a membership function to each respective validation score F to determine said modified validation score x for each of said sensors, wherein the at least one membership function comprises said at least one predetermined threshold τ, wherein said membership function comprises:
• {
• x
• =
• 1
• ,
• ⁢
• if
• ⁢
• ⁢
• F
• ≤
• τ
• 1
• ⁢
• x
• =
• (
• 1
• +
• (
• τ
• 1
• -
• F
• )
• +
• (
• τ
• 2
• -
• F
• )
• τ
• 2
• -
• τ
• 1
• )
• /
• 2
• ,
• if
• ⁢
• ⁢
• τ
• 1
• <
• F
• ≤
• τ
• 2
• x
• =
• 0
• ⁢
• if
• ⁢
• ⁢
• F
• >
• τ
• 2
• ⁢
• ⁢
• ,
• ,said at least one predetermined threshold t comprising threshold limits τ1 and τ2.