invariance


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in·var·i·ance

 (ĭn-vâr′ē-əns)
n.
1. The condition or quality of being unchanging; constancy.
2. The property of being mathematically invariant.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.invariance - the quality of being resistant to variation
unchangeability, unchangeableness, unchangingness, changelessness - the quality of being unchangeable; having a marked tendency to remain unchanged
unvariedness - characterized by an absence of variation
2.invariance - the nature of a quantity or property or function that remains unchanged when a given transformation is applied to it; "the invariance of the configuration under translation"
constancy, stability - the quality of being enduring and free from change or variation; "early mariners relied on the constancy of the trade winds"
math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
References in periodicals archive ?
Next, the initial model without restrictions was tested as baseline for the investigation of configural invariance. Subsequently, loading restriction (saturation), covariance, and residuals (errors underlying the items) were tested.
Objective: Title: Exponential Sums, Translation Invariance, and Applications.
Measurement equivalence or measurement invariance is usually considered as measuring the "same concept in the same way across various subgroups of respondents" (Davidov, Meuleman, Cieciuch, Schmidt, & Billiet, 2014, p.
LMA is a recommended technique for testing true mean differences between groups, based on measurement invariance that the same construct is being measured between groups.
The invariance of the measure has not been explored either, although some authors have drawn attention to the lack of validation studies of well-being scales with this kind of sample (e.g., Godoy-Izquierdo, Moreno, Perez, Serrano, & Garcia, 2013; Nolla et al., 2014).
A risk measure is coherent if and only if it satisfies all four of these conditions: translation invariance, homogeneity, monotonicity, and subadditivity [Artzner et al., Mathematical Finance, 1999]:
And here is a collection of words showing a high degree of invariance with the months of the year and days of the week.
The DFT based methods can be divided into two categories, one is based on the invariance [3-5], and another is based on template matching [6,7].
This study examined the psychometric properties of the SunDB measure, including invariance of the measurement model, in a population-based sample of N = 1336 adults.
However, there is a question of whether random item effects and the associated approximate measurement invariance can adequately compensate for differences in the scales raters use.
Another previous study [5] suggested an improvement on the chain code representation method by hypothesizing a minimal summation statistical direction code (MSSDC), which successfully acquires independence for translation, rotation, scaling invariance, and the starting point.