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identifiability

identifiability

1 8.6
A model feature that lets you find only one set of values from data
  • noun
  • /ˌaɪdɛntɪfɪˈaɪbɪlɪti/
  • Specialized
: identificabilidad
  • It is well known that two GMMs whose components differ cannot have identical probability densities (see Teicher, 14 for example); this is commonly referred to as identifiability.
  • robust identifiability

Examples

  • Demonstrating identifiability in a context of infinite data, clean measurements, etc. tells us nothing of relevance to the (finite, messy) problem at hand.

    Blog text (6)
  • For the purposes of learning with limited data, however, we require a significantly more robust form of identifiability.

    Academic text (2012)
  • We also note that the degree tests are essential for producing unique identifiability of H at such a small value of k.

    Academic text (2011)
  • This can similarly be related to the steep drop in transmitted information for height, and hence the identifiability of the height feature.

    Academic text (2012)
  • The potential problem with this approach, which Pearson acknowledged, was the issue of robust identifiability.

    Academic text (2012)
  • The data for the identifiability manipulation indicated that social loafing occurred in this study.

    Academic text (1993)
  • A two-way ANOVA performed on the number of ideas generated by the subjects revealed two main effects for output identifiability and task involvement.

    Academic text (1993)
  • To assess the identifiability manipulation, we asked the subjects whether they thought the experimenter had been able to distinguish between individual responses.

    Academic text (1993)
  • We also examined the effect of identifiability of output and task involvement, two factors that have been shown to mediate social loafing in the United States.

    Academic text (1993)
  • Researchers emphasized that identifiability is crucial for accurately interpreting the results of their statistical models.

Synonyms

ascertainability
vsidentifiability
1 8.9

How easy it is to find out or know something

is specific to uniquely recovering model parameters or structure from data
observability
vsidentifiability
  • Specialized
1 7.9

How well you can tell what is happening inside a system from its outputs like logs

is about uniquely determining model parameters or structure from observed data
recognizability
vsidentifiability
  • Specialized
7.9

How easily a computer program can identify a pattern or information

is about unique parameter or structure determination rather than mere detection
deducibility
vsidentifiability
  • Specialized
8.2

How well a claim or idea can be proved from facts

is about unique empirical recovery from data not logical inference

Surface Forms

Morphology

identifiability = identifiable (transparent) = identify + able + ity

The noun is formed by adding the noun-forming suffix '-ity' to the adjective 'identifiable', which itself is transparently formed from 'identify' + '-able'.

Etymology

The word identifiability comes from identify and identity, which trace back to Latin parts meaning 'same' (idem) and 'make' (facere), with -able meaning 'able to' and -ity meaning 'a quality'. So in statistics identifiability is the quality that lets you find each model parameter exactly from the data and not confuse them.