Struct InformationContent 

pub struct InformationContent {
    pub entropy: f64,
    pub mutual_information: Option<f64>,
    pub value_distribution_perplexity: f64,
    pub distinct_value_fraction: f64,
}

Information content metrics

Fields

entropy: f64

Shannon entropy (bits) of the tensor’s values after quantising them into 100 equal-width buckets over [min, max].

mutual_information: Option<f64>

Mutual information with another tensor.

Always None from TensorInspector::perform_advanced_analysis: mutual information is a property of a pair of aligned variables and this call only ever sees one tensor, so there is nothing to compute it against. It used to be published as a hardcoded 0.0, which reads as “measured zero mutual information”.

value_distribution_perplexity: f64

Perplexity 2^entropy of the quantised value distribution, i.e. the effective number of distinct value buckets the tensor occupies.

This was called effective_rank, which in linear algebra means exp(H(singular value distribution)) – an entirely different quantity that this function cannot compute because it never sees the matrix shape. The real effective rank now lives on SpectralAnalysis::effective_rank.

distinct_value_fraction: f64

Fraction of elements that are distinct at a 1e-10 tolerance (distinct / total).

This was called compression_ratio, which it is not: nothing is compressed and no codec is consulted. It is a crude proxy for redundancy, so it is now named for what it measures.

Trait Implementations

impl Clone for InformationContent

fn clone(&self) -> InformationContent

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for InformationContent

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InformationContent

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for InformationContent

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.